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February 25, 1999

MD Abbreviations by Abbreviation

The following is a list of commonly used abbreviations contributed by Mechanical Design department personnel. Users are welcome to submit corrections or additions here.

See MD Abbreviations by Word.

(E)Existing
(N)New
Micro
AMicroampere
FMicrofarad
gMicrogram
HMicrohenry
mMicrometer
mhoMicromho
sMicrosecond
SMicrosiemens
WMicrowatt
..."Second (plane angle)
...'Minute (plane angle)
AAngstrom
A/CAir Conditioning Unit
ACCELAccelerator
AFFAbove Finished Floor
AHAir Handler
APPulsed Steering Mag
ATAmpere Trip
ATFAccelerator Test Facility
BBend Magnet
B or DDC Bending Dipole
BCBare Copper
BCWBare Copper Wire
BCIMBeam Current Intensity Monitor
BFACB-Factory
BHBeam Hardener
BODBottom of Duct
BSCBeam Stay Clear
BUBackup
CCollimator, High "Z" Collimator
C/TCold Test
CCSCollider Correction Section
CEHCollider Experiment Hall
CHWRChilled Water Return
CHWSChilled Water Supply
CNDConductor
COConduit Only
COLCollimater
COLIMCollimater
CONControls
CONDConduit
CORRCorrector Magnet
CUCopper
CVControl Valve
DDipole Magnet
D or BDC Bending Dipole
D or TDump
D/CDirectional Coupler
D/SDown Stream
DADirect Action
DCBDDC Bending Dipole
DIPDistributed Ion Pump
DMDisaster Monitor
DRDamping Rings
DRIPDamping Ring Interaction Point
EMEmission Monitor
EMOElectric Motor Operator
EWEye Wash
EXTR LNExtraction Line
FAFire Alarm
FCOFloor Cleanout
FDFire Damper
FFFinal Focus
FFFinding Foil
FPPFast Pulse Pick up
FRD/CPFaraday Cup
FSFlow or float Switch
FTFinal Telescope
Ft2Square foot
FVFast Acting Vacuum Valve, Remotely Operated Acc. Valve
GAGauge
HDSCPHodoscope
HEBHigh Energy Beam
HERHigh Energy Ring
HHWRHeating Hot Water Return
HHWSHeating Hot Water Supply
HLAMHorizontal Lambertson
HOAHand-Off-Automatic
HPTMHigh Power Target Module
HVHeating & Ventilating Unit
HZHertz (Cycles Per Second)
IBeam Current Intensity Monitor
I.E.Invert Elevation with Reference to Bottom of Pipe
I/PInput
In2Square inch
INJInjection
IPInteration Point
IPIon Pump
IRInteraction Region
ISPBeam Current Intensity Monitor
IVIsolation Vacuum Value (Slow), Manually Operated Acc. Valve
KKicker Magnet
KLYKlystron
L/SLiters per second
lbfPound-force
lbf/ft2Pound-force per square foot
lbf/in2Pound-force per square inch
LCIDLinac CID
LEBLow Energy Beam
LERLow Energy Ring
LOSLockout Stop
LSLevel Switch
LSHLevel Switch High
LSLLevel Switch Low
M2Megohm
M2Square meter
M/TMagic Tee
MCCMotor Control Center
MCMThousands Circular Mils
MDManual Damper
Mi/hMile per hour
MilMil
MinMinute (time)
MlMilliliter
MmHgMillimeter of mercury, conventional
MsMillisecond
mSMillisiemens
MTRMotor
MVMillivolts
mVMillivolt
MWMegawatt
mWMilliwatt
NNewton
N-MNewton meter
N/M2Newton per square meter
nANanoampere
NDRNorth Damping Ring
nFNanofarad
NFFNorth Final Focus
NITNorth Injection Transport
NLCNext Linear Collider
NLTRNorth Linac-To-Ring
NmNanometer
NpNeper
NRTLNorth Ring-To-Linac
NsNanosecond
nWNanowatt
O/POutput
OAOutside Air
OEOersted
OLOverload
OTOptical Target
PBeam Position Monitor
P(S)Synchrotron Light Monitor
P.O.C.Point of Connection
P/OPump Out
P/PPole Plate
pAPicoampere
PCProtection Collimator
PCMPulse-count modulation
PCM Programmable Control Module
PdlPoundal
PENULTPenultimate
PEP2PEP-II (Use for SPIRES)
PFProfile Monitor
pFPicofarad
PGUNPolarized Gun
PMPulsed Bending magnet
PMProfile Monitor
PMProfile Monitor
PMPhase modulation
PMVPulsed Magnet Vertical
POL GUNPolarized Gun
PRBeam Profile Monitor, Chernkov Cell, Phosphor Screen
PRProfile Monitor
PRDPressure Relief Damper
PRLPositron Return Line
PROFProfile Monitor
ProMonProfile Monitor
PSPressure Switch
PSPush Button
PSVacuum Pumping (Sbove Housing)
PSPicosecond
PsiPound per square inch
PSMVacuum Pumping (Mech) (Above Housing)
pWPicowatt
QQuadrupole Magnet
QDQuadrupole Defocusing
QFQuadrupole Focusing
QUADQuadrupole
QUADQuadrupole Magnet
RRoentgen
R/minRevolution per minute
R/RResonant Ring
R/sRevolution per second
RAReturn Air
RCMBNRRecombiner
RHMRunning Hour Meter
RSCRidig Steel Conduit
SBeam Energy Spectrum Ind.
sSecond (time)
SSiemens
S.M.Sheet Metal
S/PSpool Piece
SASupply Air
SCSafety Collimator
SDSextupol Defocusing
SDPPermanent Sextupole- defocusing
SDRSouth Damping Ring
SEMSecondary Emission Monitor
SEPSeptum
SEPTSeptum Magnet
SEXTSextupole
SFSextupol Focusing
SFFSouth Final Focus
SFPPermanent Sextupole - focusing
SHBSub Harmonic Buncher
SHDShielded
SITSouth Injection Transport
SLEnergy Defining Slit, High "Z" Slit
SLTRSouth Linac-To-Ring
SMPermanenet Safety Magnet
SPECTSpectrometer Line
SPTRMSpectrometer
SRSynchrotron Radiation
SrSteradian
SRTLSouth Ring-To-Linac
STBeam Stopper
SUB BSTRSubbooster
SVSolenoid Valve
TTesla
T or DDump
TATest Accelerator
TBTerminal Box
TCTarget Changer Multiple, Beryllium, Single Foil, Liquid H2 or D2
TCBeam Target Changer
TCWThermocouple Wire
TDTime Delay
TDCTime Delay Closed
TDOTime Delay Open
TOPTop of Duct
TORToroid
TPITap Changer Position Indicator
TRANSTransformer
TRNARNDTurnaround
TSTemperature Switch
TSTTest
TVTelevision Camera
TXTransducer
U/SUp Stream
UGUnderground
UNOUnless Noted Otherwise
USTATIONMicrostation
UTUpper Transformer
UTLUitilities
VACVolts Alternating Current
VARVoltage Amp reactive
VarVar
VDVolume Damper
VDCVolts Direct Current
VLAMVertical Lambertson
VTRVent Thru Roof
W/With
W/(sr-m2)Watt per steradian square meter
W/CWater Cooling
W/GWave Guide
W/GWaveguide
W/LWater Load
W/OWithout
W/srWatt per steradian
WbWeber
WHWatthour
WHDWatthour Demand Meter
WHDLWatthour Demand Limiter
WIREWire Scanner
WPWeatherproof
WSWire Scanner
WSCNRWire Scanner
WTAWest Turnaround
XBBMX Length Bunch Monitor
XCORX Corrector Magnet
YCORY Corrector Magnet
Yd2Square yard
ZFMRTransformer
ZSLimit Switch

See MD Abbreviations by Word.


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