LHC machine acronyms - CERN
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ALICE acronym list
ACC ALICE Control Coordination
ACORDE ALICE Cosmic Ray Detector
ACR ALICE Control Room
ADC Analog-to-Digital Converter
ADULT A DUaL Threshold
AFFAIR A Fine Fabric and Applications Information Recorder
AGS Alternating Gradient Synchrotron
ALABUF SSD Analogue driver and switch
ALCAPONE SSD Regulator and control chip
ALICE A Large Ion Collider Experiment
AliEn Alice Grid Environment
AliRoot Alice ROOT
ALTRO ALICE TPC Readout
AMBRA SDD Digital event buffer
AMORE Automatic MOnitoRing Environment
AMS Austriamicrosystems AG
AOD Analysis Object Data
APD Avalanche Photodiodes
API Application Programming Interface
ApMon Application Monitoring API
ARC Advanced Resource Connector
ARDA A Realisation of Distributed Analysis for LHC
ARM Advanced RISC Machine
ASIC Application-Specific Integrated Circuit
BCAM Boston CCD Angle Monitors
BCF9929A Bicron shifting fibres
BC404 Bicron scintillator
CAD Computer Aided Design
CAF CERN Analysis Facility
CARLOS SDD Zero suppressor
CASTOR CERN Advanced STORage manager
CCD Charge-Coupled Detector
CCIU Channel Concentrator Interface Unit
CDB Configuration DataBase
CERN European Organization for Nuclear Research
CFC Carbon Fibre Composite
CFSS Carbon Fibre Support Sector
CHARM Computer Health ad Remote Management
CIU Channel Interface Unit
CM Control Modules
CMOS Complementary Metal-Oxide-Semiconductor
CMRW Column-Memory and Read-Write ( protocol)
CompactPCI Compact Peripheral Component Interconnect
CPDM Clock and Pulser Distribution Module
CPU Central Processing Unit
CPV Charged Particle Veto
CROCUS Cluster Read Out Concentrator Unit System
CRRC Signal shaper
CRT ConcentRaTor
CSA Charge Sensitive Amplifier
CsI Cesium Iodide
CT1 Central Trigger of level 1
CT2 Central Trigger of level 2
CTE Coefficient of Thermal Expansion
CTP Central Trigger Processor
CTTM Cosmic and Topology Trigger Module
CU Control Unit
DA Detector Algorims
DAC Digital-to-Analog Converter
DAQ Data Aquisition
DATE Data Acquisition and Test Environment
DCA Detector Control Agent
DCAHI Detector Control Agent Human Interface
DCDB Detector Construction Data Base
DCS Detector Control System
DDL Detector Data Link
DIM Distributed Information Management system
DMA Direct Memory Access
DRM Data Readout Module
D-RORC DAQ RORC
DSP Digital Signal Processors
DSS Detector Safety System
DU Device Unit
EBDS Event Building and Distribution System
ECFA European Committee for Future Accelerators
ECS Experiment Control System
EDM Event Destination Manager
ELMB Embedded Local Monitor Board
EM Electromagnetic
EMCAL Electromagnetic Calorimeter
EMC ElectroMagnetic Calorimeter
EMS External Monitoring System
ENC Equivalent Noise Charge
ESD Event Summary Data
FC Fibre Channel
FC File Catalog
FC4G Fibre Channel 4 Gbits/s
FEA Front-End Analog card
FEC Front-End Card
FEE Front-End Electronics
FED Front-End Device
FEP Front-End Processor
FERO Front-End Read-Out
FEROM Front-End Read-Out Module
FFT Frontal Fan-out Trigger
FMD Forward Multiplicity Detector
FORTRAN FORmula TRANslation
FPGA Field-Programmable Gate Array
FRT FRonTal
FSM Finite State Machine
FTD File Transfer Daemon
FTD Frontal Trigger Dispatching
FTE Full Time Equivalent
FTS File Tranfer Service
FWHM Full Width Half Maximum
FXS File eXchange Server
GB Gigabyte (109 bytes)
GDC Global Data Collector
GIF Gamma Irradiation Facility
GMS Geometry Monitoring System
GOL Gigabit Optical Link
GSI Grid Security Infrastructure
GSSAPI Grid Security Sercice Application Programming Interface
GTL FEE readout bus
GTU Global Tracking Unit
GUID Global Unique IDentifier
HAL25 SSD front-end chipc
HEP High Energy Physics
HIJING Heavy Ion Jet Interaction Generator
HLT High-Level Trigger
HMPID High Momentum Particle Identification Detector
HPTDC High-Performance Time-to-Digital Converter
H-RORC HLT RORC
HTML Hyper Text Markup Language
HV High Voltage
IA32/64 Intel Architecture, 32/64-bit
I/O Input/Output
IP Interaction Point
IR Infrared
IRST Institute of Scientific and Technological Research
IS Information Service
ITS Inner Tracking System
JCOP Joint Control Project
JDL Job Description Language
JTAG Joint Test Action Group
LAA Lepton Asymmetry Analyser (an R&D project started in 1986)
LAN Local Area Network
LDC Local Data Concentrator
LED Light Emitting Diode
LEP Large Electron-Positron Collider
LFN Logical File Name
LHC Large Hadron Collider
LMS Longitudinal Monitoring System
LNN Logical File Name
LSB Least Significant Bit
LTM Local Trigger Module
LTU Local Trigger Unit
LU Logical Unit
LVDS Low-Voltage Differential Signaling
LV Low Voltage
L0 Level-0 trigger
L1 Level-1 trigger
L2 Level-2 trigger
MANAS Multiplexed ANALogic Signal processor
MANU MAnas NUmérique
MARC Muon Arm Readout Chip
MB Minimum Bias
MCM Multi-Chip Module
MIP Minimum Ionizing Particle
MM Master Modules
MonALISA MONitoring Agents using a Large Integrated Services Architecture
MOS Metal-Oxide Semiconductor
MRPC Multi-gap Resistive-Plate Chamber
MSS Mass Storage System
MT Multiplicity Trigger
MWPC Multi-Wire Proportional Chamber
NN Neural Network
NTD Neutron Transmutation Doped silicon
OCDB Offline Conditions Data Base
ODH Oxygen Deficient Hazard
OLE Object Linking and Embedding
ON Operator Node
OPC OLE for Process Control
ORI Optical Readout Interface
OS Operating System
OSG Open Science Grid
PASCAL SDD Multi purpose ASICs
PASA Preamplifier / Shaping Amplifier
PATCH Protocol for ALICE Tracking Chambers
PC Personal Computer
PCA Partition Control Agent
PCAHI Partition Control Agent Human Interface
PCB Printed Circuit Board
PCI Peripheral Component Interconnect
PCI-X Peripheral Component Interconnect eXtended
PDS Permanent Data Storage
PFN Physical File Name
PG p-Gas Trigger
PHENIX Pioneering High Energy Nuclear Interaction Experiemnt
PHOS Photon Spectrometer
PID Particle Identification
PIN Positive Intrinsic Negative
PLC Programmable Logic Controller
PMD Photon Multiplicity Detector
PMT Photomultiplier Tube
PFN Physical File Name
POSIX Portable Operating System for Computer Environment
PROOF Parallel ROOt Facility
PS Proton Synchrotron
PVSS Prozessvisualisierungs- und Steuerungs-System
PWO PbWO4
PX24 23 m diameter access shaft
QCD Quantum Chromo Dynamics
QE Quantum Effeciency
QoS Quality Of Service
QRL Cryogenic Ring-Line
RC Run Control
RCU Readout Control Unit
RHIC Relativistic Heavy Ion Collider
RICH Ring Imaging Cherenkov detector
RORC Read-Out Received Card
RPC Resistive Plate Chamber
SASL Simple Authentication and Security Layer
SBU Sequential Build-Up
SCADA Supervisory Controls And Data Acquisition
SDD Silicon Drift Detector
SDTY Standard Data Taking Year
SE Storage Element
SEU Single Event Upset
SFP Small Form-Factor Pluggable
SG2 Building for primary gas circulation equipment
SI2K Specification Integer 2000
SIU System Interface Unit
SLA Service Level Agreement
SMI State Management Interface
SMP Symmetrical Multi Processing
SMT Symmetrical Multi Threading
SOAP Simple Object Access Protocol
SPD Silicon Pixel Detector
SPS Super Proton Synchrotron
SSD Silicon Strip Detector
STAR Solenoidal Tracker At RHIC
STU Summary Trigger Unit
SVN SubVersioN
SX2 Assembly hall covering the underground access shaft
SXL2 Assembly surface building
TAB Tape Automatic Bonded
TCI Trigger Crocus Interface
TCP/IP Transmission Control Protocol/Internet Protocol
TDC Time-to-Digital Converter
TDS Transient Data Storage
TDSM Transient Data Storage Manager
TID Total Ionizing Dose
TMAE TriMethylAminoEthyl
TMS Transverse Monitoring System
TMU Track Matching Unit
TOF Time-Of-Flight
TOT Time-Over-Threshold
TPA Trigger Partition Agent
TPC Time Projection Chamber
TR Transition Radiation
TRAP Tracklet Processor
TRD Transition Radiation Detector
TRG Trigger
TRM TDC Readout Module
TRU Trigger Region Unit
TS/CV CERN Cooling and Ventilation Group
TS/EL CERN Electronic Engineering Group
TTL Transitor-Transistor Logic
TTC Timing, Trigger and Control
TTCrx Timing, Trigger and Control receiver
T0 Time 0 detector
UI User Interface
UMC United Microelectronics Corporation
UNIX (UNICS) UNiplexed Information and Computing System
UP25 Connection tunnel between the UX25 area and the LHC by-pass tunnel
UPC Ultra Peripheral Collisions
UPS Uninteruptible Power Supply
URD User Requirements Document
UV Ultraviolet
UX25 Main underground cavern
VME Versa Module Eurocard
V0 Vertex 0 detector
VO Virtual Organisation
WLCG Worldwide LHC Computing Grid
WLS Wavelength Shifting
WN Worker Node
WWW World Wide Web
ZEM ZDC ElectroMagnetic detector
ZDC Zero Degree Calorimeter
ZN ZDC Neutron detector
ZP ZDC Proton detector
LHC machine acronyms
LHC Large Hadron Collider being built at CERN
LEP Large Electron Positron collider built at CERN and now decommissioned
IP Interaction Point at which two opposing beams collide
IR Interaction Region in which the IP is situated
SSS Short Straight Section, that occurs in the arcs and contain quadrupole and corrector magnets
LSS Long Straight Section, that flanks the IPs
MS Matching Section in the LSS
DS Dispersion suppressor situated between the MS in the LSS and the arc
MB Main LHC dipoles
MQ Main LHC quadrupoles
QF Focusing Quadrupole
QD Defocusing Quadrupole
QRL Cryogenic feed line
HOM Higher order modes in RF cavities
General layout:
CS: Crossing Section
DS: Dispersion Suppression region
IP: Interaction Point
IR: Insertion Region
JR: Junction Region
LSS: Long Straight Section
LTI: LHC Transfer and Injection
MS: Matching Section
SPSS: Special Short Straight Section
SSS: Short Straight Section
TL: Transfer LineInstrumentation:
BCT: Beam Current Transformer
BCTDC: DC Beam Current Transformer
BCTFR: Fast Beam Current Transformer
BG: Gas Monitor
BGI: Ionization Profile Monitor
BGL: Luminescence Profile Monitor
BLM: Beam Loss Monitor
BLMA: Beam Loss Monitor, Ionization Chambers
BLMB: Beam Loss Monitor, ACEM's on collimators
BOB: Beam Synchronous Timing System
BOC: Control Software for Beam Instrumentation
BPM: Beam Position Monitor
BQ: Tune, chromaticity and coupling measurement
BQS: Schottky Monitor
BRA: Beam RAte Monitors
BRAN: Beam RAte Neutrals ( HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "TAN" TAN type luminosity monitor)
BRAS: Beam RAte Secondaries ( HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "TAS" TAS type luminosity monitor)
BSR: Synchrotron Radiation Observation System
BSRA: Abort Gap Monitor
BSRT: Longitudinal Synchrotron Light Monitor
BSRT: Transverse Synchrotron Light Monitor
BTV: Beam Observation TV Monitors based on Screens
BWS: Wire Scanner Profile Monitor
DAB: Data Acquisition Board
FBCT: Fast Beam Current Monitor (= HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "BCTFR" BCTFR)
FMCM: Fast Magnet Current Changing Monitor
DCCT: DC Current Transformer (= HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "BCTDC" BCTDC)
IPM: Ionization Profile Measurement
LIDS: LHC Instrument and Diagnostic Software
LPM: Longitudinal Profile Measurement
TPM: Transverse Profile Measurement
SEM: Secondary Emission Monitor
WS: Wire Scanner
Collimators:
TAN: Target Absorber Neutral
TAS: Target Absorber Secondaries
TC...: Target Collimator
TCD...: Target Collimator Dump
TCDD: Collimator for D1 protection
TCDI: Target Collimator Dump Injection transfer line: Transfer line collimator
TCDQ: Target Collimator Dump Quadruple (Diluter): Collimator for Q4 protection
TCDS: Target Collimator Dump Septum (Diluter): Collimator for HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "MSD" MSD protection
TCHS: Target Collimator Halo Scraper
TCL...: Target Collimator Long
TCLA: Target Collimator Long Absorber
TCLI: Target Collimator Long Injection protection
TCLP: Target Collimator Long Physics debris
TCP: Target Collimator Primary: Primary collimator for cleaning
TCS: Target Collimator Secondary: Secondary collimator for cleaning
TCSG: Target Collimator Secondary Graphite:
TCSM: Target Collimator Secondary Metallic
TCT: Target Collimator Tertiary: Tertiary collimator
TCTH: HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "TCT" TCT Horizontal
TCTV: HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "TCT" TCT VerticalTiming:
BCD: Beam Coordination Diagram
BP: Basic Period
BST: Beam Synchronous Timing
CBCM: Central Beam and Cycle Manager
CCM: Common Console Manager
CT: Controls and Timing
CTG: Controls Timing Generator
CTIM: Central Timing
CTR: Timing Receivers
GMT: General Machine Timing
MTG: Master Timing Generator
PLL: Phase Locked Loops
PPS: Pulse Per Second
SC: Super Cycle
TTC: Timing, Trigger and Control
UTC: Coordinated Universal Time RF:
AC: Accelerating Cavities
ACN: Normal Conducting Cavity 200 MHz
ACS: Accelerating Superconducting Cavity 400 MHz
AD: Damper
ADL: Longitudinal Damper
ADT: Transverse Damper
ADTH: Transverse Damper (Horizontal)
ADTV: Transverse Damper (Vertical)
APW: Longitudianl Pickup station
APWL: Bunch parameters
APWP: Phase loop
APWS: Beam structure
RF: Radio-frequency
Interlock:
AEM: Accelerator Equipment Monitor
BIC: Beam Interlock Controller (= HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "CIB" CIB)
BII: Beam Intensity Interlock
BIS: Beam Interlock System
BPC: Beam Permit Controller
BPF: Beam Permit Flag or Beam Presence Flag??
BPL: Beam Permit Loop
CI: Interlocks
CIB: Beam Interlock Controller System
CIF: Fast Magnet Current Change Monitor
CIP: Powering Interlock Controller System
CIW: Warm Magnet Interlock Controller System
ISIC: Individual Software Interlock Channel
LSIC: Logical Software Interlock Channel
PIC: Powering Interlock Control (= HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "PIC" CIP)
PPC: Power Permit Controller
SBF: Safe Beam Flag
SIS: Software Interlock System
SSIS: SPS Software Interlock System
WIC: Warm Magnet Interlock Control (= HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "CIW" CIW)Machine protection:
BEM: Beam Energy Meter
BET: Beam Energy Tracking System
BDS: Beam Dumping System
DQ: Quench Protection System (= HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "QPS" QPS?)
LBDS: LHC Beam Dumping System
MCS: Management of Critical Settings
MPS: Machine Protection System
QPS: Quench Protection System
SB: Safe Beam
SLP: Safe LHC Parameters
TD...: Target Dump
TDE: Dump for Ejected Beam (External)
TDI: Beam Absorber for Injection (Internal)
TED: Beam Absorber for Injection (External)Magnets:
COD: Correction Dipoles
MB: Main Dipole Coldmass
MBAW: Alice Spectrometer
MBLW: LHC-b Spectrometer
MBWMD: Single Aperture Warm Dipole Module Compensating ALICE spectrometer
MBXW: Single Aperture Warm Dipole Module D1 in IR1 and IR5
MBXWH: Single Apterure Warm Horizontal Dipole Module Compensating LHCb spectrometer
MBXWT Single Aperture Warm Compensator for ALICE
MCB: Arc orbit corrector magnets (at each QF and QD)
MCBH: Arc horizontal orbit corrector magnets
MCBV: Arc vertical orbit corrector magnets
MCBX: Inner Triplet nested Horizontal and Vertical Dipole Orbit Corrector
MCD: Decapole Corrector (spool piece corrector) in HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "MCDO" MCDO
MCDO: Nested Decapole-Octupole Corrector
MCI: Injection Line Orbit Corrector
MCO: Octupole Corrector (spool piece corrector)
MCS: Sextupole Corrector (spool piece corrector)
MCSOX: Nested skew sextupole, octupole, skew octupole corrector package
MKA: Tune Kicker
MKB: Diluter Dump Kicker
MKD: Ejection Dump Kicker (Fast Pulsed Extraction Magnets)
MKE: Extraction Kicker Magnet
MKI: Injection Kicker Magnet
MKQ: Kicker for Q and Aperture Measurement
MKQA: LHC Tune and Aperture Measurement
MO: Octupole Lattice Corrector in Arc Short Straight Section: Landau damping
MOD: Defocusing lattice octupole
MOF: Focusing lattice octupole
MQ: Lattice Quadrupole
MQI: Injection Line Quadrupole
MQM: Insertion Region Quadrupole
MQS: Skew Quadrupole Lattice Corrector in Arc Short Straight Section
MQT: Tuning Quadrupole Corrector in Arc Short Straight Section
MQTF: Focusing Tune Quadrupole
MQTV: Defocusing Tune Quadrupole
MQWA: Twin Aperture Warm Quadrupole Module in IR3 and IR7; asymmetrical FD or DF
MQWB: Twin Aperture Warm Quadrupole Module in IR3 and IR7; symmetrical FF or DD
MQXA: Single Aperture Triplet Quadrupole (Q1, Q3)
MQXB: Single Aperture Triplet Quadrupole (Q2)
MQY: Insertion Region Wide Aperture Quadrupole
MS..: Arc Sextupole Lattice Corrector: chromaticity sextupoles (at each QF and QD)
MSCB: Sextupole-Dipole Corrector: assembly of HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "MS." MS and HYPERLINK "http://lhccwg.web.cern.ch/lhccwg/Bibliography/UsefulAcronyms.htm" \l "MCB" MCB
MSD: Ejection Dump Septum
MSE: Extraction Septum Magnet
MSI: Injection Septum Magnet
MSS: Arc Skew Sextupole Corrector
PC: Power Converters
PELP: Parabolic-Exponential-Linear-Parabolic command
QD: Lattice Defocusing Quadrupole
QF: Lattice Focusing Quadrupole
Post Mortem:
GMPMA: Global Magnet Post-Mortem Analysis
GSA: Global System Analysis
IPOC: Internal Post-Operation Checks
FaDu: False Dump
ISA: Independent System Analysis
LSA: Logical System Analysis
MaDa: Magnet Damage
PM: Post Mortem
SDA: Sequence Data Acquisition
XPOC: External Post-Operation Checks
Cryogenics:
QRL: Cryogenic Line
WRL: Warm Recovery Line
Miscallenea:
BBC: Beam Beam Compensator
BBQ: Base Band Tune
BCM: Beam Conditions Monitor
BPCE: Bumped Beam Position at Extraction
CCC: Common Control Center
DA: Dynamical Aperture
DIP: Data Interchange Protocol
FiDeL: Field Description of LHC
LACS: LHC Access Control System
LASS: LHC Access Safety System
LSA: LHC Software Applications
MA: Mechanical Aperture
MAD: Methodical Accelerator Design
MEB: Magnet Evaluation Board
MOPOS: SPS Orbit System
MTE: Multi Turn Extraction
PLC: Programmable Logic Controller
PPM: Pulse to Pulse Modulation
RBAC: Role Based Access Control
SDDS: Self Describing Data Sets
SIL: Safety Integrity Level
SMPV: Safe Machine Parameter Verifier
UPS: Uninterruptible Power Supply
VELO: Vertex Locator
WISE: Window Interface for Simulating Errors
YASP: Steering Program
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