- n. o. s.
- Not otherwise specified. (from 49 CFR)
- N&S
- Necessary and Sufficient (ES&H).
- NA
- Nucleon area
- NA Code
- North American Code. (from 49 CFR)
- NAA
- NonAttainment Area (from CAA). An area whose ambient air
levels exceed federal or state standards.
- NAAQS
- National Ambient Air Quality Standards. (from CAA)
- NACA
- National Advisory Committee for Aeronautics.
- NACE
- National Association of Corrosion Engineers.
- NAE
- National Academy of Engineering
- NAG
- Numerical Algorithms Group
- NAIAC
- Nonproliferation, Arms Control and International Security
Advisory Committee.
- NAL
- National Accelerator Laboratory (FermiLab). See also FNAL
- NALCD
- North American Linear Collider Detector
- NALTA
- North American Large-scale Time-coincidence Array.
- Named Pipes
- A reliable form of interprocess communication in which a
direct link is established by a server for a client.
- nanoPE
- nanoporous PolyEthylene.
- NAP
- Non-proliferation Advisory Panel.
- NARA
- National Archives and Records Administration.
- Narrow Pulse Generator
- See NPG.
- NAS
- National Academy of Sciences.
- NASA
- National Aeronautics and Space Administration
- NASA
- See NASA's GLAST website.
Glast Category: organization
URL: http://glast.gsfc.nasa.gov/
- NASA/GSFC
- National Aeronautics and Space Administration/Goddard Space
Flight Center.
- National Environmental Policy Act
- See NEPA.
- NA31
- CERN NA31 Spectrometer-Calorimeter.
- NB
- Negative Binomial
- NBD
- Negative binomial distribution
- NBS
- National Bureau of Standards (US).
- NC
- Neutral Current
- NCA
- North Collider Arc.
- NCA
- Network Computing Architecture.
- NCG
- NonCommutative Geometry
- NCI
- National Cancer Institute.
- NCI
- Nuclear Control Institute (non-proliferation research),
Washington D.C.
- NCI
- Nuclear Cities Initiative
- NCM
- NEPA Compliance Manager.
- NCOS
- NonCommutative Open String theory.
- NCP
- National Contingency Plan.
- NCQFT
- Non-Commutatitive Quantum Field Theories.
- NCRP
- National Council on Radiation Protection.
- NCRR
- National Center for Research Resources (National Institutes
of Health).
- NCS
- National Communications System.
- NCSA
- National Center for Supercomputing Applications. A
federally-funded organization whose mission is to develop and
research high-technology resources for the scientific community.
(Illinois).
- NCSC
- National Computer Security Center.
- NCXT
- National Center for X-ray Tomography (ALS).
- NCYM
- NonCommutative Yang-Mills.
- ND
- NaI detector at VEPP-2M, Novosibirsk.
- NDA
- Non-Disclosure Agreement.
- NDE
- Non-Destructive Examination.
- NDIM
- Negative Dimensional Integration Method
- NDMS
- National Disaster Medical System.
- NDR
- North Damping Ring.
- NDR
- Naive Dimensional Regularization
- NDT
- Non-Destructive Testing
- NE
- Nuclear Experiment.
- NEA
- Near-Earth Asteroid.
- NEAC
- Nuclear Energy Advisory Committee (DOE)
- NEC
- National Electrical Code.
- NECA
- National Electrical Code Association.
- NEG
- Non-Evaporable Getter (pump).
- NEH
- Near Experimental Hall. (LCLS)
- NEHA
- National Environmental Health Association. See also CHWS.
- NEIC
- National Enforcement Investigations Center. A subdivision of
EPA.
- NEMA
- National Electrical Manufacturers Association.
- NEO
- New Employee Orientation. (SLAC)
- NEO
- Near-Earth Objects.
- NEPA
- National Environmental Policy Act. The 1969 federal act
which created the requirement for an Environmental Impact
Statement for projects involving federal funding.
- NERAC
- Nuclear Energy Research Advisory Committee (DOE). See NEAC.
- NERSC
- National Energy Research Scientific Computing Center. (DOE)
- NESHAP
- National Emission Standards for Hazardous Air Pollutants.
(from CAA)
- NEST
- Nuclear Emergency Search Team.
- NESTOR
- Neutrino Extended Submarine Telescope with Oceanographic
Research. (Greece).
- NetBEUI
- NetBIOS Enhanced User Interface. An interprocess
communications standard developed by IBM. NetBEUI provides
network interfaces used by a network operating system (which
operates at the presentation layer) to access the session layer
of the ISO model. As defined by IBM,
- NetBIOS
- Network Basic Input/Output Subsystem. An interprocess
communications standard developed by IBM. NetBIOS provides
network interfaces used by a network operating system (which
operates at the presentation layer) to access the session layer
of the ISO model.
- NetBIOS Enhanced User Interface
- See NetBEUI.
- NETC
- National Emergency Training Center.
- NETL
- www.netl.doe.govTechnology Laboratory. (DOE)
- NETL
- www.netl.doe.govTechnology Laboratory. (DOE) INL Idaho
National Laboratory. (DOE)
- NETL
- National Energy Technology Laboratory. (DOE)
- Netscape
- Netscape Communications Corporation, founded in 1994.
Products include the popular Navigator Web browser, web servers,
and tools for building intranets.
- Network
- A group of machines connected together so they can transmit
information to one another. There are two kinds of networks:
local networks and remote networks.
- Network Address
- 1) The physical or hardware address of a network interface
card. For Ethernet this 48-bit address might be 0260.8C00.7666.
The hardware address is used to forward packets within a physical
network. 2) The logical or Internet address is used to facilitate
moving data between physical networks. The 32-bit Internet
address is made up of a network number, a subnetwork number, and
a host number. Each host computer on the Internet has a unique
address. All Internet addresses at SLAC have a network number of
134.79. All Internet hosts have a numeric address and an English-
style name. For example, the Internet address for SLAC's IBM 3480
is 134.79.17.41. Its Internet name is SLAC.Stanford.EDU.
- Network Basic Input/Output Subsystem
- See NetBIOS.
- Network Operating System
- See NOS.
- NEUL
- NEULand large-angle neutrino spectrometer.
- neutron star
- Extremely dense star formed from the collapsed remnant of a
massive star that has experienced a stellar explosion known as a
supernova. Rotation speed is exceptionally fast, varying from one
seven-hundredth of a sec ond to thirty seconds. Gravitational
fields, as measured by escape velocity, typically approach about
half the speed of light.
Glast Category: astronomy
- NEXAFS
- Near Edge X-ray Absorption Fine Structure.
- nEXO
- next-generation Enriched Xenon Observatory.
- NFC
- Natural Flavor Conserving
- NFF
- North Final Focus.
- NFPA
- National Fire Protection Association.
- NFPA
- No Fixed Point Automorphisms
- NFPA
- National Fire Protection Association.
- NFS
- Network File System. Protocols developed by Sun Microsystems
to allow access to remote files as if they were local. Originally
written for Unix but expanded to include PC, MAC and other
systems. See also: AFS
- NFS
- National Facilities Survey.
- NGC
- New General Catalog of nebulae and star clusters. (Dreyer,
Memoirs of the RAS V49, N.1)
- NGLS
- Next Generation Light Source. (LBNL)
- NGS
- Neutrino beam to Gran Sasso
- NGST
- Next Generation Space Telescope
- NGT
- Nonsymmetric Gravitational Theory
- NHZ
- Nominal Hazard Zone.
- NIC
- The Network Information Center. There are many NICs operated
by local, regional, and national networks all over the world.
Such centers provide user assistance, document service, and
training.
- NICADD
- Northern Illinois Center for Accelerator and Detector
Development.
- NICE
- Serpukhov nonmagnetic precision spectrometer.
- NICER
- Neutron star Interior Composition Explorer. (NASA)
- NIEHS
- National Institute of Environmental Health Sciences.
- NIF
- National Ignition Facility (LLNL).
- NIGMS
- NIH Institute for General Medical Sciences.
- NIH
- National Institutes of Health.
- Nikhef
- Nationaal Instituut voor Kernfysica en Hoge-Energiefysica
(Amsterdam). As of 1998, renamed National Institute for Subatomic
Physics (Nikhef is no longer an acronym)
- NIM
- Nuclear Instrumentation Module. A backplane module crate
system similar to the CAMAC system. The NIM system does not
include a computer interface.
- NIM
- Normal Incidence Monochromator
- NIOSH
- National Institute for Occupational Safety and Health.
- NIRCam
- Near InfraRed Camera. (JWST)
- NIRNS
- National Institute for Research in Nuclear Science.
- NIRSpec
- Near InfraRed Spectrograph. (JWST)
- NIS
- Network Information Service (Sun). Major components include
the ypserv and ypbind daemons started at boot time in the
/etc/rc.local script,these daemons handle NIS database
communications for both servers and clients.
- NIS
- Network Information System. A database containing the user
names, machine names, and directory names that a Network File
System uses to track all machines on a network. Formerly called
'Yellow Pages' (yp).
- NIST
- National Institute of Standards and Technology.
- NISUS
- Near-Infrared Scalable Undulator System.
- NIT
- North Injection Tunnel. The electron transport line going
from the BSY to PEP. Also: North Injection Transport.
- NJL
- Nambu-Jona-Lasinio
- NLA
- Next-to-leading Logarithmic Approximation.
- NLC
- Next Linear Collider.
- NLCTA
- Next Linear Collider Test Accelerator. A prototype of a
short section of the NLC that is being built at SLAC.
- NLDC
- National Laboratory Directors' Council.
- NLL
- Next-to-leading Logarithmic Level
- NLLA
- Next-to-Leading Logarithmic Approximation
- NLO
- Next-to-Leading Order
- NLS
- Nonlinear Schrodinger
- NLSP
- Next Lightest Supersymmetric Particle
- NLTR
- North Linac To Ring.
- NMC
- New Muon Collaboration
- NMC
- Next Muon Collider
- NMC
- Nickel Manganese Cobalt oxide.
- NMI
- Non-Maskable Interrupt.
- NMI
- NSF Middleware Initiative.
- NML
- New Muon Lab (Fermilab)
- NMR
- Nuclear magnetic resonance.
- NMS
- Network Management Station. The system responsible for
managing a portion of a network. The NMS talks to network
management agents, which reside in the managed nodes, via a
network managment protocol.
- NMSSM
- Next to Minimal Supersymmetric Standard Model
- NN-20
- DOE/NN Office of Research and Development
- NNAC
- Nonproliferation and National Security Advisory Committee
(DOE)
- NNI
- Nearest Neighbor Interaction
- NNLL
- Next-to-Next-to-Leading Logarithmic.
- NNLO
- Next-to-Next-to-Leading Order.
- NNMI
- National Network for Manufacturing and Innovation.
- NNSA
- National Nuclear Security Admininstration. (DOE)
- NNSAC
- Non-proliferation and National Security Advisory Committee.
Also k nown as NNSA.
- NO
- NonOscillatory
- No Observed Effect Level
- See NOEL.
- NOA
- Notice Of Award. (Stanford)
- NOAA
- National Oceanic and Atmospheric Administration
- NOAEL
- No Observed Adverse Effect Level.
- NOAO
- National Optical Astronomical Observatory. (NSF)
- Node
- Any computer, terminal or peripheral on a network. It is
also called a host.
- NOEL
- No Observed Effect Level. The highest dose in an animal
toxicity study for which no effect was observed.
- NOI
- Notice Of Intent or Inquiry.
- Nomad
- A relational database in use at SLAC for numerous accounting
and business applications. Nomad has the unique ability to
transform a flat file into a searchable database without any
restructuring of the file.
- NOMAD
- Neutrino Oscillation MAgnetic Detector (CERN)
- Non-ionizing Electromagnetic Radiation
- Radiation that does not change the structure of atoms but
does heat tissue and may cause harmful biological effects.
Sources include laser light, microwaves, radio waves, and low-
frequency electromagnetic fields from high-voltage transmission
lines.
- Non-Production Web Pages
- Pages and directories used to develop files which will
eventually be launched into production. This is often your own
~username directory, but is may also be somewhere else in your
personal space not linked to the SLAC home page. See also:
Production Web Pages.
- Nonattainment Area
- See NAA.
- NOPR
- Notice of Public Ruling.
- NORM
- Naturally Occuring Radioactive Material.
- North Injection Tunnel
- See NIT.
- NOS
- Network Operating System. An operating system specifically
designed to manage and control a network or networks and related
services.
- NOvA
- NuMi Off-axis ve (electron neutrino) Appearance experiment.
- November Revolution
- In physics, November 1974, when two separate experiments at
SLAC and at Brookhaven independently discovered the first of a
new set of particle states, the J/Psi particle. (See
http://www.slac.stanford.edu/history/revolution.shtml.)
- NOVO VEPP 2M
- NOVOsibirsk VEPP-2M electron-positron storage ring (1.4 GeV
Ecm).
- NOVO VEPP 4
- NOVOsibirsk VEPP-4 electron-positron storage ring (14 GeV
Ecm).
- NP
- Noteworthy Practice.
- NP
- New Physics.
- NPAC
- Nuclear Program Advisory Committee.
- NPACI
- National Partnership for Advanced Computational
Infrastructure.
- NPAS
- Nuclear Physics At SLAC.
- NPDES
- National Pollutant Discharge Elimination System. (from CWA)
- NPG
- Narrow Pulse Generator. A test module used to simulate beam
pulses for diagnostic purposes.
- NPI
- Nuclear Physics Injector. An electron gun in the LINAC,
located at Sector 25, that delivers high current beams at low
energy, which is not possible using the entire linac. It is also
used to generate electrons for low-energy running when the front
end of the LINAC is down for maintenance or for some other
reason.
- NPL
- National Priorities List. (from CERCLA)
- NPO
- Non-Purchase Order.
- NPRCS
- No-Permit-Required Confined Space.
- NPS
- See NPAS.
- NPSS
- Nuclear and Plasma Sciences Society (IEEE).
- NRAO
- National Radio Astronomy Laboratory.
- NRB
- North Reverse Bend. See also RB.
- NRC
- Nuclear Regulatory Commission.
- NRC
- National Response Center.
- NRC
- National Research Council, in Washington D.C.
- NRDC
- Natural Resources Defense Council.
- NREL
- National Renewable Energy Laboratory. (DOE)
- NREN
- National Research and Education Network.
- NREX
- North Ring Extraction. See also NREX loops.
- NREX Loops
- North Ring Extraction Feedback Loops (Circuits).
- NRL
- Naval Research Laboratory (US)
- NRL
- US Navy and Marine Corps corporate research laboratory. See
NRL website.
Glast Category: organization
URL: http://www.nrl.navy.mil/
- NRO
- National Reconnaissance Office.
- NRQCD
- NonRelativistic QCD
- NRQED
- NonRelativistic QED
- NRT
- National Response Team.
- NRTL
- North Ring to LINAC.
- NRTL
- Nationally Recognized Testing Laboratory.
- NRY
- North Research Yard.
- ns
- nanosecond
- NS
- Neveu-Schwarz
- NSA
- National Security Agency.
- NSC
- Nanoscience Safety Committee. (SLAC)
- NSCL
- National Superconducting Cyclotron Laboratory (Michigan
State)
- NSCY
- A pair of numbers in the database. The first number
represents the number of standardization cycles, and the second
number represents the wait period before starting back down
during a cycle in milliseconds (how long you wait at the top of
the standardize).
- NSF
- National Sanitation Foundation.
- NSF
- National Science Foundation.
- NSFNET
- The national backbone network, funded by the National
Science Foundation and operated by the Merit Corporation, used to
interconnect regional networks such as WESTNET to one another.
- NSLS
- National Synchrotron Light Source (BNL).
- NSNS
- National Spallation Neutron Source (ORNL).
- NSPS
- New Source Performance Standards. (from CAA and CWA)
- NSR
- Neveu-Schwarz-Ramond
- NSRC
- National Synchrotron Research Centre. (Thailand)
- NSRRC
- National Synchrotron Radiation Research Center (Taiwan).
- NSS
- Neutron Spallation Source.
- NSS
- Nuclear Science Symposium.
- NSVZ
- Novikov-Shifman-Vainshtein-Zakharov.
- NT
- Windows NT is a 32-bit operating system that supports
preemptive multitasking. There are two versions of Windows NT: a
network server and a workstation.
- NTF
- No Trouble Found.
- NTF
- Neutron Therapy Facility
- NTG
- Neue Technologien GmbH. (German engineering company)
- NTIA
- National Telecommunications Information Administration.
- NTIS
- National Technical Information Service (U.S. Dept. of
Commerce, Springfield, VA).
- NTM
- National Technical Means
- nTOF
- neutron Time-Of-Flight facility. (CERN)
- NTP
- National Toxicology Program. A part of USPHS.
- NTP
- Need To Proceed
- NTS
- Non-compliance Tracking System.
- Nu
- The Greek letter (n). See TUNE.
- NUCHEP
- Nippon-US Commission for HEP.
- Nuclear Instrumentation Methods
- See NIM.
- Nuclear Physics Injector
- See NPI.
- NUFO
- National Users Facilities Organization.
- NuMI
- NeUtrinos at the Main Injector. An experiment that fires
neutrinos from the Main Injector at FermiLab toward an
underground target 730 km (about 430 miles) away in Soudan,
Minnesota.
- NuPECC
- Nuclear Physics European Collaboration Committee.
- NuPNET
- Nuclear Physics NETwork.
- NuSAG
- Neutrino Scientific Assessment Group.
- NUST
- National University of Sciences and Technology. (Pakistan)
- NuSTAR
- Nuclear Spectroscopic Telescope ARray.
- NUSX
- Mont Blanc NUSEX underground detector.
- NUT
- Newman-Unti-Tamburino
- NuTeV
- NeUtrinos at the TEVatron experiment (FNAL).
- NWPA
- Nuclear Waste Policy Act of 1982.
- NZE
- Near Zero Emittance.
Send corrections to jmdeken@slac.stanford.edu
or propose new terms for SLACspeak.