- See Collimator.
- A high-level programming language developed by Dennis
Ritchie and Brian Kernighan at Bell Labs in the mid 1970's. C is
particularly popular with personal computer programmers because
it is relatively small, and requires less memory than other
- C Line
- The beam line extending from the BSY to End Station C. The C
line is being replaced by the Final Focus Test Beam.
- A high-level programming language developed by Bjarne
Stroustrup at Bell Labs. C++ adds object-oriented features to its
predecessor, C. It is one of the most popular programming
languages for graphical applications, such as those that run in
Windows and Macintosh environments.
- Certification & Authorization.
- Collider Arc (North or South).
- Corrective Action (ES&H)
- CA HSC
- CAlifornia Health and Safety Code.
- Clean Air Act. (42 U.S.C. Ch. 85, Sec. 7401 et seq)
- See CBL.
- Cable Access Receiver
- See CAR.
- Cable Access Transmitter
- See CAT.
- Computer Assisted Design / Computer Assisted Manufacturing.
- Community Awareness and Emergency Response (a CMA program).
- Computerized Accident / Incident Reporting System.
- Calcium Aluminum-rich InclusionS.
- CALorimeter subsystem (GLAST).
- A hodoscopic CsI detector used to measure the energy, in
calories, of a Gamma-ray event.
Glast Category: hardware
- California Accidental Release Program.
- California Occupational Safety and Health Administration.
- Calendar Year
- See CY.
- Cursor Addressed Limited Facility. A console using only a
single Ann Arbor Ambassador terminal.
- BPMs: Calibration measures pedestal and ADC linearity so the
computer can position the beam from the BPM data more precisely.
- Magnets: A method of matching the actual current of a magnet
to its set value. The DAC to current function is accurately
measured for improved trimming performance.
- For the BaBar detector: the characterization of the response
of the detector and/or detector electronics to known stimuli. The
purpose of calibration is to record those responses, in order to
provide a better understanding of the physics significance of the
event data, and to allow optimization of the detector for taking
subsequent event data.
- CAlorimeter for the LInear Collider with Electrons.
- Correction Algorithms for Linear COlliders
- A detector or any device measuring the energy of a particle
- Computer-Aided Acquisition and Logistics Support.
- CALibration SIMulation. (LSST)
- CAMAC. A klystron SDS message indicating that the CAMAC
system is malfunctioning at a given station.
- Control or Cost Account Manager.
- Continuous Air Monitor. (SSRL)
- Computer Automated Measurement And Control. A system
interface between computers and the devices they control. It is a
backplane type crate system incorporating a 5Mb/sec serial link.
The SLC CAMAC system includes more than 300 crates.
- CAMAC Communication
- See CAMCOM.
- CAMAC DAC Location
- See DACL.
- CAMAC Serial Repeater
- See CSR.
- CAMAC Communication. An interactive program used primarily
for diagnostics during early commissioning of new hardware on the
CAMAC system. It allowed users to communicate with CAMAC modules
directly from a terminal.
- Computer-Aided Management of Emergency Operations. (NOAA)
- Capital Asset Management Process.
- CFEL-ASG-Multi-Purpose. Instrument constructed for a series
of exp eriments at the LCLS.
- Corrective Action Management System.
- Controller Area Network.
- Controller ANalog/Digital Interface card.
- Collaboration of Australia and Nippon for a GAmma Ray
Observatory in the Outback.
- (see CANGAROO's website)
Glast Category: organization
- Collaborative Agreement Order. Like a purchase order, but
contain s a disclaimer that it is not a contract, but is issued
as an admi nistrative convenience.
- Continuous Acquisition Pixel.
- Corrective Action Plan
- Cap Sigma
- Capital Sigma. The square root of the quadratic sum of the
sizes of the two beams at the IP. It is a fit parameter from a
beam-beam deflection scan.
- Capital Sigma
- See Cap Sigma.
- California Asymmetric Phi factoRI.
- The SLAC CAble Plant Tracking database.
- Completely Automated Public Turing test to tell Computers
and Huma ns Apart.
- Cable Access Receiver. A triple width CAMAC module with an
RF receiver (modem). The CAR converts a serial bit stream to
parallel data words.
- Canonical Anticommutation Relations
- California Air Resources Board. See ARB.
- Capable of causing cancer.
- Computing and Administrative Resources Division.
- Coordinated Accelerator Research in Europe.
- Chemical Abstracts Service.
- CERN Accelerator School.
- Chinese Academy of Sciences.
- Cost Accounting Standards.
- Contract Assurance System.
- CID Analyzing Station. A horizontal bend energy
- Center for Advanced Studies of Accelerators.
- Computer-Aided Software Engineering.
- A thick-walled container (usually lead) used to transport
radioactive material. Also called a coffin.
- CERN Axion Solar Telescope.
- Centauro And Strange Object Research.
- Cable Access Transmitter. A CAMAC module which broadcasts
information to other micros on SLCNET channels, or over a
- Compteur A Trous. (Detector-CERN)
- Cherenkov Array at Themis. Astronomy telescope array in the
- Computer application developed by SUNCAT scientists that
displays reaction and activation energies for reactions occurring
on cataly tic metal surfaces.
- Computer Aided Trouble Entry and Report. A VAX database
program used to manage maintenance issues in which problems and
solutions are reported and communicated to the proper department.
`To cater' means to report a problem in this. (Formerly called
- Corrective Action Tracking System. (Superseded by ATS)
- Community Antenna Television. A closed broadband coaxial
cable network used for information distribution in campuses,
buildings and cities. It is in use at SLAC in the Learning Room
in the Library. See also SITN
- Caustic Soda
- Sodium Hydroxide, a strong alkaline substance used as the
cleaning agent in some detergents.
- A large class of substances which form solutions having a
high pH, also bases and alkalis.
- A metal enclosure whose dimensions are designed to resonate
at some given RF or microwave frequency. Used to accelerate beams
and/or compensate for loss of beam power in damping and storage
- Cavity resonator
- A tunable copper cavity capable of storing electromagnetic
energy of a particular wavelength and frequency and then, when
properly synchronized, of imparting that energy to an electron
beam passing through it. Invented by William W. Hansen, who
called it the "rhumbatron."
- Controlled Access Zone.
- Crystal Ball (see entry under same)
- Crystal Ball detector. (See entry under Crystal Ball.)
- Crystal Barrel detector at CERN-LEAR.
- Commerce Business Daily
- Cylindrical Beam Expander.
- Correlated Basis Function
- Cosmic Background Imager.
- Critical Behaviors Inventory.
- CaBLe. Klystron summary display message indicating that the
cable has a problem.
- Cloudy Bag Model
- Crystal Box at LAMPF.
- Cosmic Background Radiation
- Computer-Based Training.
- Colliding Beam eXperiments
- Command Center.
- Cloud chamber.
- Coordinating Council (ES & H)
- Citizen Committee
- Configuration Control.
- China Center of Advanced Science and Technology.
- Change Control Board.
- LAT CCB approves and tracks changes to software.
Glast Category: organization
- Computer Coordinating Committee
- Chemical Carcinogen Control Program. (SLAC)
- Charge-Coupled Device. A device wherein semiconductors are
arranged so that the output of one serves as the input of the
- Charge Control Device.
- Central Computing advisory Group. Also, Computing
Coordination Gr oup.
- Computing Center of the National Institute of Nuclear
Physics and Particle Physics. (2 N's and 3 P's)
- Coordinating Committee for Informatics Research Development
and Application (DOE)
- Consultative Committee International Telephone and
Telegraph. A unit of the International Telecommunications Union
(ITU) of the United Nations. It produces technical standards,
known as recommendations, for all internationally controlled
aspects of analog and digital communications.
- CCITT V.24
- A set of data communications standards, similar to RS-232C,
that calls out the signals to use to connect digital equipment to
make the equipment compatible.
- RIKEN PHENIX Computing Center in Japan, a regional center.
- the Council for the Central Laboratory of the Research
Councils in England.
- Channel-Cut Monochromator. Device that uses a pair of
crystals to produce a monochromatic beam.
- A DECNET-based network that includes Carnegie-Mellon, Case
Western Reserve, Columbia University, New York University
Business School, Stevens Institute of Technology, and Vassar
College. Although now part of the Internet, CCNET sites
originally communicated with BITNET and MAILNET through gateways.
- Central Control Room. The original control center for the
accelerator. Not in use anymore but still wired to some control
systems. Located North of the LINAC gallery near Sector 27.
- California Code of Regulations (formerly California
- Canonical Commutation Relations
- Chromatic Correction Section. A beam transport section in
the Final Focus area. It consists of three Bend magnets (B1,2,3)
interlaced with eight quads and eight sextupoles. This section is
designed to take out the chromatic aberration at the IP due
largely to the final triplet quadrupoles. ALSO Collider
- Carbon Capture and Storage.
- CCS Bump
- A betatron phase bump produced with magnets A15, A14, A7,
and A6 across the CCS in the SFF or NFF. It produces a small
amount of dispersion at the IP to cancel the residual dispersion
at the final focus interaction point.
- International working group that publishes standards for
data- and information-systems used in space missions. The
telecommands and telemetry exchanged with the LAT are structured
according to a data packet standard publish ed by CCSDS.
Glast Category: organization
- Package containing utility routines that allow other FSW
subsystems to create and populate telecommand and telemetry
Glast Category: FSW, package
- CCSDS Packet
- A spacecraft data packet standard approved by the
Consultative Committee for Space Data Systems (CCSDS).
Glast Category: software, spacecraft
- California Council on Science and Technology.
- Computational Crystallography ToolboX for X-ray Free-
Electron Lase rs.
- Constituent Concentrations in Waste.
- Constituent Concentrations in Waste Extract.
- Controls Department.
- Critical Decision.
- Central Drift Chamber. A part of a typical colliding beam
detector used to track charged particle trajectories.
- Center for Disease Control. (Federal)
- Controlled Document Collection. (SLAC)
- calorimeter Crystal DEtector (GLAST).
- LAT calorimeter CsI crystal detector element.
Glast Category: hardware
- Collider detector at Fermilab
- California Department of Food and Agriculture.
- California Department of Health Services (aka DHS, DOHS,
- Neutrino detector at CERN.
- Cold Dark Matter
- Package providing a framework for other FSW subsystems to
manage low-level configuration parameters stored onboard as
Glast Category: FSW, package
- Cryogenic Dark Matter Search.
- Controlled Document Management System. (SLAC)
- Controlled Document Owner. (SLAC)
- Conceptual Design Report
- Controlled Document Specialist. (SLAC)
- Charge Density Waves.
- Cambridge Electron Accelerator, a joint Harvard-
Massachusetts Institute of Technology Facility. Laboratory was
closed in 1974.
- Commissariat à l'Énergíe Atomique. (French
Atomic Energy Commission)
- CEA Bypass
- Modification to the CEA synchrotron to turn it into a
- Causal Entropy Bound.
- The Newport News, VA Continuous Electron Beam Accelerator
Facility was officially dedicated on 5-24-96, at which time its
parent lab was renamed the Jefferson National Accelerator
Laboratory (JNAL). CEBAF is a JNAL accelerator that uses radio-
frequency cavities made of super-conducting materials to propel
high-energy electrons around a race-track shaped course.
- California Energy Commission.
- Committed Effective Dose Equivalent.
- Conventional and Experimental Facilities. (Formerly SEM and
- Collider Experimental Hall. The pit at the east end of the
SLC, housing both the MARK II and the SLD detectors and their
- |Files that allow one to collect different root files (i.e.,
mc, digi, recon, relations) and group them together by run/event
(id)entifications. By referencing a single cel file, one can then
find all the ROOT files associated w|
|ith those ids. |
Glast Category: data processing, SAS, software
- a cosmic gamma-ray experiment.
- A repetitive transport line unit in which the optics are
such that beta out = beta in. Typical LINAC cells are 24 meters
long, except for sectors two through fours which are six to 12
- The smallest structural part of living matter capable of
functioning as an independent unit.
- In solid waste disposal, a hole where waste is dumped,
compacted, and covered with layers of dirt on a daily basis.
- CELLO detector at DESY.
- Consorci per a la constuccio, Equipament i explotacio del
Laborato re de Llum de Sincrotro. (Spain)
- Continuous Emission Monitoring.
- Cascade Exiton Model.
- Corporation for Education Network Initiatives in California.
- Central Control Room
- See CCR.
- Central Drift Chamber
- See CDC.
- Centrifugal Collector
- A mechanical system using centrifugal force to remove
aerosols from a gas stream or water from sludge.
- Capitol Equipment Project.
- Chemical Emergency Preparedness Program. (from EPA)
- Council on Environmental Quality.
- California Environmental Quality Act. (CPRC Sec. 21000 et
- Comprehensive Environmental Response, Compensation and
Liability Act. Also known as Superfund. (42 U.S.C. Ch. 1, Subch.
J, Part 300 et seq)
- Cerenkov detector
- see Cherenkov detector.
- California Education and Research Federation Network.
- European Organization for Nuclear Research, Geneva,
Switzerland. (in French: Organisation Europeenne pour la
Recherche Nucleaire). The acronym, still used, derives from the
organization's original name: Centre Europeen pour la Recherche
- CERN ISR
- CERN proton-proton Intersecting Storage Rings (62 GeV Ecm).
- CERN LEP
- CERN Large Electron-Positron collider (161 GeV, as of 1996)
- CERN PS
- CERN's Proton Synchrotron, a 630-meter-circumference machine
that began operation in 1959.
- CERN SC
- CERN cyclotron (600 MeV/c Plab)
- Community Emergency Response Team (SLAC)
- Certifiable Systems
- Computer and telecommunications systems that can be used
for, or modified to be used for, classified information.
- Certified Hazardous Waste Specialist
- See CHWS.
- The process of coating a cathode with a cesium compound to
decrease its work function and improve its electron yield is
called cesiation. The polarized light source used at CID in 1992
had its cathode cesiated once every several days.
- Cornell Electron-positron Storage Collider (10 GeV).
- Cornell electron storage ring - Test Accelerator.
- Core Function.
- Conflat Flange.
- Center for Astrophysics (Harvard-Smithsonian).
- Chlorofluorocarbons. A family of inert, nontoxic, and easily
liquified chemicals used in refrigeration, air conditioning,
packaging, insulation, or as solvents and aerosol propellants.
Because CFCs are not destroyed in the lower atmosphere, they
drift into the upper atmosphere, where their chlorine components
- Centre for Free-Electron Laser science.
- CAD Framework Initiative.
- Color Flavor Locked.
- Chief Financial Officer.
- Cosmology and Fundamental Physics.
- Code of Federal Regulations.
- Cubic Feet per Second.
- Conventional Facilities and Siting. (Also shown as CF&S).
- Conformal Field Theory
- Computation research Group.
- California Government Code.
- Clebsch-Gordan coefficients
- Combustible Gas Indicator.
- Common Gateway Interface
- Common Graphical Interface
- Computer Graphics Metafile.
- Carbon Glass Resistance
- Candidate Gamma-Ray Blazar Survey project.
- Compton Gamma Ray Observatory.
- Launched April 5th, 1991, the CGRO covered an energy range
from 30 keV to 30 GeV. (See NASA's CGRO website.)
Glast Category: astronomy
- Chemical and General Safety.
- Cyber Governance Working Group.
- Combinatorial Hierarchy.
- Collider Hall (See also CEH).
- CHicago office. (DOE)
- California Health and Safety Code.
- Canadian High Energy Electron Ring.
- Chemical Emergency
- See Emergency (Chemical).
- Chemical Transportation Emergency Center
- See CHEMTREC.
- A mutual aid network of chemical shippers and contractors
accessible through CHEMTREC.
- CHEMical TRansportation Emergency Center. Sponsored by the
Chemical Manufacturers Association. Telephone: 800-424-9300.
- Chen Institute
- Institute for the study of particle astrophysics and
cosmology. Established in 2001 at Stanford University and located
- Computing in High Energy and nuclear Physics (conference).
- Cherenkov Detector
- A detector for counting or detecting high energy charged
particles. The particle passes through a liquid or a gas, and the
light emitted as Cherenkov radiation is registered by a
photomultiplier tube. (Cherenkov radiation is produced when a
charged particle passes through a medium at a speed greater than
the speed of light in that medium.)
- Cherenkov Ring Imaging Detector
- See CRID.
- Cornell High Energy Synchrotron Source.
- Central Helium Facility.
- Cranked Hartree-Fock-Bogoliubov
- A Beam line bump made with four bend magnets. Chicanes are
used as energy filters to transmit only the part of the spectrum
wanted or to eliminate particles of the wrong charge (as in the
positron chicane in EP02). The strengths of the four bends are
calculated to transmit beams of a specific energy. There are
three chicanes in the SLC; the CID Compressor Chicane, the LI01
Chicane, and the EP02 Chicane.
- California High school Cosmic ray ObServatory.
- the Swiss Institute of Particle Physics.
- Chirped Beam
- A beam that is accelerated so that the tail of the electronc
bunch can be given a higher energy than the head (LCLS).
- CHLOrine Emergency Plan operated by the Chlorine Institute
and activated through CHEMTREC.
- Chlorinated Hydrocarbons
- Halogenated hydrocarbons in which the halogen in the
molecular structure is chlorine.
- Chlorinated Solvent
- An organic solvent containing chlorine atoms, e.g.,
methylene chloride and 1,1,1-trichloralmethane which is used in
aerosol spray containers and in traffic paint.
- See CFCs.
- CHARM-II neutrino detector (glass) at CERN.
- California Highway Patrol.
- Chiral Perturbation Theory
- Chemical Hazard Response Information System/Hazard
Assessment Computer System. Developed by and accessed through the
U.S. Coast Guard. Also available for purchase in four manuals.
HACS is a computerized model of the four CHRIS manuals.
- CHARM neutrino detector (marble) at CERN.
- Chief Human Resources Officer (SLAC)
- Chromatic Aberration
- The energy-dependent distortion caused by a quadrupole.
Particles of different energy are focused to different points
because high-energy particles are focused (or bent) less than
lower-energy particles. This is analogous to light optics, where
light of different colors has different wavelengths (energy) and
therefore different indexes of refraction when passing through a
- Chromatic Correction Section
- See CCS.
- Chromatic Filamentation
- The increase in the phase space area resulting from
chromatic aberration. As the beam rotates in phase space, the
resulting emittance is larger.
- Chronic Effects
- Toxic effects which occur over relatively long periods of
time, e.g., months or years. See also Acute Effects.
- Chronic Toxicity
- A qualitative measure of a toxic agent administered
repeatedly over a long period of time, e.g., months or years. See
also Acute Toxicity.
- California Health and Safety Code.
- County Hazardous Waste Management Plan. (CH&SC Sec. 25135 et
- CHilled Water Return.
- Certified Hazardous Waste Specialist. A certification issued
by the National Environmental Health Association (NEHA) to
degreed individuals with specified experience in hazardous waste
management who pass a written examination.
- CHilled Water Supply.
- Curie. A quantitative measure of radioactivity equal to 3.7
x 1010 disintegrations per second.
- CERN-IHEP boson spectrometer.
- Cable In Conduit Conductors
- Centre International de Conférences Genève.
(Geneva International Conference Center)
- Cairo International Conference on High Energy Physics.
- Collider Injector Development. The first accelerator section
of the SLC (also called the injector). Also: The general area
near the injection guns, or the PPS area going from the guns to
K01 accelerator section.
- Center for Inverse Design. DOE National Renewable Energy Lab
(NREL ) project in which SSRL is a participant.
- CID Analyzing Station
- See CAS-0.
- Centro de Investigaciones Energéticas, Medioambientales
y Tecnológicas. (Research Center for Energy, Environment and
- Canadian Institute For Advanced Research.
- Committee on the International Freedom of Scientists.
- Constituent Interchange Model.
- Centro de INVestigación y ESTudios Avanzados del
Instituto Politécnico Nacional. (Center for Investigation and
Advanced Studies of the National Polytechnic Institute in Mexico)
- The Coherent InfaRed CEnter, at LBNL.
- Commonwealth of Independent States.
- Committee on International Scientific Affairs (APS).
- Center for International Security and Cooperation.
- Complex Instruction Set Computer.
- Center for Interface Science and Catalysis. (SLAC/Stanford)
- Computer and Information Science and Engineering
- Chief Information Security Officer.
- Canada Institute for Scientific Technology Information.
- Compact Ignition Tokamak.
- Software application that allows SLAC staff and users to
access computer accounts from home.
- Cabibbo-Kobayashi-Maskawa. The name given to a matrix of
numbers related to quark interactions. The numbers are often
shown in a gr aphical form called the unitary triangle.
- Controller Laser.
- CEBAF Large Acceptance Spectrometer
- Class A Fires
- Fires involving ordinary combustible materials.
- Class B Fires
- Fires involving flammable liquids.
- Class C Fires
- Fires involving energized electrical equipment.
- Class D Fires
- Fires involving combustible metals such as Li, Mg, Ti, Zn,
Na, and K.
- China's Linear Collider Workshop.
- Central Lab Expansion.
- Continuous wave Linac for Efficiency and Availability
- Clean Room
- A specifically prepared and designated location that limits
the intrusion of airborne particles and/or fume contamination
using positive pressure, filtered air, special ventilation
systems, and other methods.
- Actions taken to deal with a release or threat of release of
a hazardous substance that could affect humans and/or the
environment. The term `cleanup' is sometimes used interchangeably
with the terms remedial action, removal action, response action,
or corrective action.
- Cornell magnetic detector at CESR.
- CLEO II detector at CESR.
- CooLinG Water.
- CERN LInear Collider. CERN design for a two stage RF linear
collider, described in a series of several hundred 'CLIC-Notes'.
Also 'Compact Linear Collider' (see CLIC Note 302).
- Client-Server Architecture
- A distributed computing system in which a client process (a
front end program requesting a service) sends a request to a
program running on another machine (a server) to perform some
function. For example, a database client might request a database
server to supply some collection of sorted data. The server
performs the sort and sends the sorted data to the client.
- Client/Client Process
- A program running on a network workstation that requests
services from a network server. For example, a client might be a
user sitting at a workstation using a front end program--a client
process --that makes a request to a database server for data.
- Central Lab Office Complex. (LCLS)
- Closed-Loop Recycling
- Reclaiming or reusing wastewater for non-potable purposes in
an enclosed process.
- Common Language Runtime.
- Compton Laser Safety Stopper.
- Crisis Manager.
- Center of Mass
- Construction Manager.
- Chemical Manufacturers Association.
- Cosmic Microwave Background.
- Cosmic Microwave Background Radiation.
- Cryogenic magnetic detector at VEPP-2M, Novosibirsk.
- Centrally Managed - Field Deployed.
- Common Management Information Protocol. An OSI standard
protocol used with the Common Management Information Services
- Common Management Information Services.
- See CAMCOM.
- Computer Maintenance Management System.
- Complimentary Metal-Oxide-Semiconductor detector.
- Colossal MagnetoResistance.
- Compact Muon Solenoid, general purpose detector at the LHC
- Center-of-Mass System.
- Central Lab Machine Shop. A SLAC Group.
- Chemical Management Services.
- Constrained Minimal Supersymmetric Standard Model.
- Crisis Management Team.
- Based on packages, the CMT environment specifies conventions
for naming and addressing packages, files, and directories. Tools
for implementing these conventions are also provided. (See CMT
Glast Category: software
- Customized extension of the CMT configuration management
Glast Category: FSW, package
- Centro Nazionale di Adroterapia Oncologica, located in Pavia
- China National Grid.
- CERN Neutrinos to Gran Sasso, a progject.
- Cornell Laboratory of Nuclear Studies.
- Chiral NonMinimal
- A discriminated and summed signal representing highly
ionizing particles from heavy nuclei (CNO). This is a non-veto
input from the ACD to the GEM.
Glast Category: hardware
- Centre National de la Recherche Scientifique (France).
- Central Nervous System.
- Conduit Only.
- Coaxial Cable
- An electrical cable in which a piece of wire is surrounded
by insulation and then surrounded by a tubular piece of metal
whose axis of curvature coincides with the center of the piece of
wire, hence the term, `coaxial.' Such cable offers high
transmission rates, and is used by Ethernet.
- COsmic Background Explorer satellite.
- Control Objectives for Information and Related Technology.
- Chemical Oxygen Demand.
- Conduct Of Engineering.
- Container On Flat Car.
- Continuity Of Government.
- Control of Hazardous Energy.
- Coherent Oscillation
- An oscillation created when all particles of a bunch
oscillate with the same phase.
- Conflict Of Interest.
- Coliform Index
- A rating of the purity of water based on a count of fecal
- The set of physicists (and related postdoctoral and graduate
students) who are actively involved in a specific experiment at
any time during its development, running, analysis and
- Collider Experiment Hall
- See CEH.
- Collider Injector Development
- See CID.
- Sometimes called `slit.' A mechanical device installed in a
beam line in order to reduce the aperture. SLC collimators are
either `fixed' or have movable `jaws' and are used to define the
energy and/or remove beam tails. Protection collimators are used
to intercept high power beams before they can impact on magnetic
elements in a beam line. See also PC.
- Combustion Product
- Substance produced during the burning or oxidation of a
- superconducting proton cyclotron at the Paul Scherrer
Institute (P SI).
- A program to design transport line optics. COMFORT computes
only twiss and storage ring parameters.
- Command Post
- See CP.
- Common Management Information Protocol
- See CMIP.
- Community Antenna Television
- See CATV.
- Community Toxicology Unit
- See COMTU.
- Common Muon and Proton Apparatus for Structure and
- COordinated Molecular Probe Line Extinction Thermal Emission
- Compliance Schedule
- A negotiated agreement between a pollution source and a
government agency that specifies dates and procedures by which a
source will reduce emissions and, thereby, comply with a
- A system, incorporating an RF source and a bending transport
line section, used to reduce the length of a particle bunch. An
energy spread is introduced into the bunch using a short
accelerator section. The leading particles, with more energy,
will traverse a longer path through the bend section because they
bend less. The tail, or trailing particles of lower energy, will
make a sharper bend and catch up with the head, thus reducing the
bunch length. This method is used to reduce bunch length after
the damping rings in the NRTL and the SRTL.
- Compton Effect
- The reduction in the energy of high-energy photons when they
are scattered by free electrons during elastic collisions.
- Compton Polarimeter
- A device which ascertains the degree of polarization of the
electron beam by measuring the cross section of compton-scattered
electrons from polarized laser light.
- Computer Aided Trouble Entry and Report
- See CATER.
- Computer Architecture
- The area of computer study that deals with the physical
structure (hardware) of computer systems and the relationships
among these various hardware components.
- Computer Automated Measurement and Control
- See CAMAC.
- COMmunity Toxicology Unit. A subdivision of DHS.
- Confined Aquifer
- See Artesian Aquifer.
- Server-based, knowledge management tool that enables subject
matter experts to access, create, and edit content using their
browser and the wiki markup language to create web pages.
Glast Category: software
- Avoiding waste of, and renewing when possible, human and
natural resources. The protection, improvement, and use of
natural resources according to principles that will assure their
highest economic or social benefits.
- Console Desk
- The central desk in MCC where call-in books, log books and
other references are located.
- Console on Wheels
- See COW.
- Constituent Package
- Specific software package (e.g., AcdDigi, AcdRecon, CalDigi,
CalRecon, TkrDigi, TkrRecon, etc.) included in a top-level
package such as the GlastRelease, BeamtestRelease,
EngineeringModel, or ScienceTools pack ages.
Glast Category: software, SAS, package
- Any physical, chemical, biological, or radiological
substance or matter that has an adverse affect on air, water, or
- Contingency Plan
- A document setting out an organized, planned, and
coordinated course of action to be followed in case of a fire or
explosion or a release of hazardous waste from a TSDF or a
generator's facility that could threaten human health or the
environment. (from RCRA)
- Continuously Updating Display
- See CUD.
- Control Technique Guidelines
- See CTG.
- Controlled Access
- A PPS interlocked state that allows controlled entry without
violating the `searched state' of an SLC area. An MCC operator
must visually (by remote cable TV) identify and log all persons
entering or leaving the area. An interlocked key bank system is
used to control the number of people in the area. The operator
logs the names of the people entering the area, and releases each
of them a key which they may use for entry and must return upon
leaving the area.
- Controlled Area
- An area wherein entry is controlled for the purpose of
- CONTrol Valve.
- Chief Operating Officer.
- A message given to a Web browser by a Web server. The
browser stores the message in a text file called cookie.txt. The
message is then sent back to the server each time the browser
requests a page from the server.
- A liquid or gas used to reduce the heat generated by power
production in nuclear reactors, electric generators, various
industrial and mechanical processes, and automobile engines.
- Cooling Tower
- A structure that helps remove heat from water used as a
coolant, e.g., in electric power generating plants.
- Modularized pipeline readout electronics system. Developed
for KEK B-factory upgrade.
- Common Object Request Broker Architecture, a software system
which deals with distributed object computing
- CORRector magnet
- The dissolving and wearing away of metal caused by a
chemical reaction such as between water and the pipes that the
water contacts, chemicals touching a metal surface, or contact
between two metals.
- A chemical agent that reacts with the surface of a material
causing it to deteriorate or wear away.
- Cosmology and astrophysics.
- COsmologically Significant Mass Oscillation Search (A
Fermilab Exp eriment)
- Cost Recovery
- A legal process by which potentially responsible parties who
contributed to contamination at a Superfund site can be required
to reimburse the Trust Fund for money spent during any cleanup
actions by the federal government.
- Committee on Science and World Affairs.
- County Solid Waste Management Plan. (California)
- COoler SYnchrotron.
- Coherent Optical Transition Radiation.
- An electronic device used to count pulses or the frequency
- A particle detector used for counting particles or
- Chicagoland Observatory for Underground Particle Physics.
- Vegetation or other material providing protection as ground
- Console On Wheels. An operator station including an Ann
Arbor terminal, a multibus crate with a micro, two displays or
CRTs and four to eight control knobs.
- Charge Parity.
- Cathodic Protection.
- Command Post. A facility located at a safe distance upwind
from an accident site, where the on-scene coordinator,
responders, and technical representatives can make response
decisions, deploy manpower and equipment, maintain liaison with
news media, and handle communications.
- CP Symmetry
- Charge-parity symmetry. Under this principle, the physics of
an interaction would be unaffected if a particle were to be
converted into its anti-particle and viewed in a mirror.
- CP Violation
- The small but important asymmetry of the weak interactions
under the combined operations of charge conjugation and parity
inversion. Was discovered experimentally by James Cronin and Val
Fitch of Princeton, who won the 1979 Nobel Prize in Physics for
- Contractor Performance Assessment Reporting System.
- Chemical Protective Clothing.
- compact Peripheral Component Interface.
- Central Personnel Data File.
- Comprehensive Project Design Guidance. (ILC)
- Controls and Power Electronics (Operations Directorate).
- Communications & Power Industries (Palo Alto)
- Capital Planning and Investment Control.
- Chiral Primary Operator
- Compliance Partnership Program.
- CardoPulmonary Resuscitation
- California Public Resources Code.
- Circular Polarization Sign.
- Consumer Product Safety Act.
- Consumer Product Safety Commission.
- Contractor Purchasing System Review.
- Charge Parity Transformations
- A suite of tests designed to verify that the performance of
each subsystem remains within specificationin the observatory-
wide environment. The CPT is also designed to demonstrate the
health of each subsystem and collect calibr
ation and trending data. Tests are run in both primary and
Glast Category: general, hardware, operations
- CPT theorem
- Charge conjugation Parity inversion Time reversal theorem.
Holds that physics should not discriminate between particles and
anti-particles (moving backwards in time).
- Central Processing Unit (in a computer)
- Charge-Parity Violation.
- Central Proportional Wire Chamber.
- Constituent Quark Model
- Cosmic Ray.
- Computer Room Air Conditioners.
- Criteria Review and Approach Document.
- Cooperative Research and Development Agreement (between a
DOE contractor and private industry)
- Crash Bar
- A device to push open a locked PPS gate in case of a fire or
other emergency. Crash bars can be reset only with special keys
kept in the MCC control room keysafe.
- A CAMAC card slot chassis and power supply incorporating a
backplane which supports CAMAC modules. Crates are connected to
each other and to the micro by a 5 Mbit serial link. The crate
modules are the last link in the chain which interfaces the
computer to the hardware in the SLC control system.
- Crate Verifier
- A CAMAC module whose purpose is to test and verify the
operational condition of its crate. Verifier modules are usually
installed in slot 1 of the crate.
- First interactive system on the SLAC 360/91 (1968). Replaced
with WYLBUR in 1970.
- Cosmic Ray Energetics and Mass experiment.
- Cryogenic Rare Event Search with Superconducting
- Cherenkov Ring Imaging Detector. An SLD detection system
which identifies particles by measuring their velocities.
- Descriptive factors taken into account by EPA in setting
standards for various pollutants. These factors are used to
determine limits on allowable concentration levels, and to limit
the number of violations per year. When issued by EPA, the
criteria provide guidance to the states on how to establish their
- Criteria Pollutants
- The 1970 amendments to the Clean Air Act required EPA to set
National Ambient Air Quality Standards for certain pollutants
known to be hazardous to human health. EPA has identified and set
standards to protect human health and welfare for six pollutants:
ozone, carbon monoxide, total suspended particulates, sulfur
dioxide, lead, and nitrogen oxide. The term, `criteria
pollutants' derives from the requirement that EPA must describe
the characteristics and potential health and welfare effects of
these pollutants. It is on the basis of these criteria that
standards are set or revised.
- Customer Relations Management.
- Chief Research Officer.
- Cosmic Ray Observatory Project.
- Cross Section
- The area of the section of an object generated by the
intersection of a plane with that object.
- Cross Section
- A measure of the probability that a collision will occur
between a beam and a particular particle. The rate for a given
process is proportional to its cross-section.
- A circuit designed to quickly short out an electrical
voltage in order to protect either equipment or personnel
downstream of the system.
- Centre de Recherches en Physique des Plasmas.
- Concrete Reinforcing Steel Institute.
- CRYogenic Operations. A SLAC Group in the Experimental
Facilities Department that is responsible for the storage,
transportation and use of low temperature liquid gases (commonly
used as targets, or in detectors and superconducting magnets).
- Substance having a temperature below -150 degrees F (-101.1
- Cryogenic Operations
- See CRYO.
- The branch of physics and engineering dealing with very low
- Cryogenics Engineering
- See CYE.
- An apparatus for maintaining a very low temperature. The
final focus superconducting triplet quadrupoles and the spin
rotator solenoids are enclosed in cryostats (a fancy name for a
- Crystal Ball
- Crystal Ball detector. Built by a SLAC/Stanford, CalTech,
Harvard, Princeton collaboration. Used on SPEAR (at SLAC) from
1978 to 1981; used at DORIS starting in 1982; in 1997 moved to
the AGS at Brookhaven.
- Chemical Waste Storage Area.
- Canadian Standards Act.
- Charge Symmetry Breaking.
- Columbia University - Stony Brook GBO calorimeter installed
in an NaI array.
- Cathode Strip Chambers.
- Cross System Extension.
- Charge-Sensitive Infrared Phototransistor.
- Cyber Safety Improvement Plan / Program.
- Commonwealth Scientific and Industrial Research
- Caltech Submillimeter Observatory (Hawaii).
- Chief Safety Officer. (SLAC)
- Chemical Strategies Partnership.
- Cyber Security Program Plan.
- CAMAC Serial Repeater. Used where CAMAC crates are separated
by long distances as in the arcs. It is an in-line amplifier for
- Coherent Synchrotron Radiation.
- Five channel differential transceiver.
- Cooling Tower.
- Computer-assisted Tomography.
- Cold Test.
- Cerenkov Telescope Array.
- Closed Timelike Curves.
- Cumulative Trauma Disorder. A form of musculo-skeletal
disorder caused by damage to tissue from repetitive motion or
- Hardware interface for exchange of telecommands and
telemetry: implemented on the LAT according to the MIL-STD-1553
Glast Category: hardware
- Package providing software driver support for the command
and telemetry data bus.
Glast Category: FSW, package
- Coordinated Theoretical-Experiment project on the QCD.
- Collider Test Facility
- Control Technique Guidelines. A series of EPA documents
designed to assist states in defining reasonable available
control technology (RACT) for major sources of volatile organic
- A database secondary indicating the last time a magnet was
- Corner Transfer Matrix
- Closed Time Path
- Package in the software chain responsible for routing
incoming telecommand packets and outgoing telemetry packets.
Glast Category: FSW, package
- Vehicle configured to support RF testing with the
Glast Category: spacecraft
- Cooling Tower Water.
- Central Utility Building.
- Continuously Updating Display. A video display unit in MCC
indicating faulted devices in the machine. The better term for
CUD is `Status Summary Display (SDS).' There are several of these
units in MCC.
- Compute Unified Device Architecture. An open-source
- Controlled Unclassified Information.
- Cumulative Working Level Months
- See CWLM.
- Central Utility Plant.
- See Ci.
- Cursor Addressed Limited Facility
- See CALF.
- Columbia University-Stony Brook segmented NaI detector at
- Cost Variance.
- Chemical Vapor Deposition method
- Cluster Variation Method
- Tool designed to manage and track revisions of sets of
documents, including source code, build files, project
documentation, etc. All documents are contained in a central CVS
Glast Category: software
- Common Vulnerability Scoring System. (Computing)
- Continuous Wave (RF).
- Cooling water. See also LCW.
- Code Workshop.
- Clean Water Act. (33 U.S.C. Sec. 1251 et seq)
- California Water Code.
- Current Working Estimate.
- Cherenkov Wake Field Accelerator
- Gomplex Wentzel-Karmers-Brillouin.
- Cumulative Working Level Months. The sum of lifetime
exposure to radon working levels expressed in total working level
- Centralized Waste Management Area.
- California Waste Management Board.
- Collaboration-Wide Review (BaBar).
- Contingent WorkeR.
- Categorical Exclusion.
- Categorical Exclusion Determination.
- Coherent X-ray Imaging (LCLS).
- Coherent X-ray Imaging Database.
- The central controller chassis from Cerberus, used at SLAC
for fire detection.
- Calendar Year, 1 Jan thru 31 Dec. See also FY (Fiscal Year).
- A term coined by William Gibson in his fantasy novel
`Neuromancer' to describe the `world' of computers, and the
society that gathers around them. Now more generally defined as
the on-line world of computer networks.
- CrYogenics Engineering. A SLAC Organizational Group.
- CrYogenics Operations.
- Term used to designate person within a group who has
responsibility for administration of a type of information
resource. See also mega-czar.
- Colliders to Cosmic Rays, a conference meeting in Prague in
Send corrections to firstname.lastname@example.org
or propose new terms for SLACspeak.