PS Digitization Project – CERN Archives

**The PS Parameter Committee members**: Left to right : Edouard Regenstreif, Pierre Germain, Kjell Johnsen, Arnold Schoch, Mervyn Hine, John Adams, Franco Bonaudi, Fritz Grutter, Kees Zilverschoon and Colin Ramm. June 1960 (Image: CERN)

PS Group
1952 to 1954

PS Division
1955 to 1960

MPS Division
1961 to 1965

PS Department
MPS Division
1966 to 1975

PS Division
1976 to 2002

AB Division
2003 to 2008

More information about the PS Structure

PS documents by Groups / Series	AA	AD	AE	AE(2)	AL/ALO	AR	AR(2)	BD
	BR	BT	CA	CO/CCI	CD/CDI	CLIC	COP	CTF3
	DI/DL DIR	EA	ED	EE	EI	EM	EN	ENS
	Energy	EP	FES	GE	HBC	HI	HP	LEA LEAR
	LINAC/LI/LR LIN/LRF/LIL	LP/LPI	MA	MD	ME	MG	ML	MM
	MS	MU	Nufact	NP	OP	PA	PO/POW	PP
	PSO	PSR	RF	SA	SC	SE	SM	SR
	TH	VA	1st PS Reports		By Authors		PS Bulletin Info

PS documents by Committees	PS Staff Meetings	Machine Operation Committee (MOC)	Parameters Committee	Running-in Committee (RIC)
	Installation Committee (ICM)

Documents	Series	Groups	Years
AA	AA Series	Antiproton Accumulator: AA fusioned with LEA group to form AR group in 1988. Antiproton Accumulator Running In (AAC-RI) Antiproton Collector (AC – ACOL) – TITAC – TACTIC	1978-1987
AD	AD Series	Antiproton Decelerator	1997-2002
AE	AE Series	Acceleration and Ejection: AE Group moved to EI group in 1979	1974-1978
AE2	AE2 Series	Accelerators and Experimental Areas	2000-2002
AL/ALO	AL/ALO Series	Apparatus Layout: AL group moved to MU group in July 1964	1960-1964
AR	AR Series	Accelerator Research. This group became a division in 1961	1958-1959
AR2	AR2 Series	Antiproton Rings: This group was created by the fusion of AA and LEAR groups	1988-1996
BD	BD Series	Beam Diagnostics	1991-2002
BR	BR Series	Booster (B): It was a sub-group in MU group Booster (BR): BR fusioned with LIN group to form HI group in 1988	1966-1967 1972-1987
BT	BT Series	Beam Transport – Beam Transfer (since 1983): This group was created from EI group in 1982. BT moved to RF group in 1988	1982-1987
CA	CA Series	Circular Accelerators & Areas	1997-2000
CO/CCI	CO/CCI Series	Machine Group-Computer (MG-CO) : 1960 Computer (CO) : 1961-1973. This group moved to CCI and OP groups in 1974 Computer Control and Instrumentation (CCI), 1974-1978 Controls (CO) : 1979-2002	1960-2002
CD/CDI	CD/CDI Series	Cyclotron Development: This group moved to SC group in 1982	1976-1981
CLIC until 2002	CLIC Series until 2002	Compact e+e- Linear Collider. All CLIC Notes	1985-2002
COP	COP Series	Synchro-Cyclotron (SC) Operation: This group moved to SC group in 1982	1976-1981
CTF2/3	CTF2/3 Series	CLIC Test Facility (CTF2/CTF3)	1997-2002
DI/DL/DIR	DI/DL/DIR Series	Direction – Division Leader	1958-2002
EA	EA Series	Experimental Area : EA Group became NPA division Experimental Areas Experimental Areas : This group fusioned with PSR group to form PA group in 1988	1958-1960 1976 1985-1987
ED	ED Series	Electrical Development: ED moved to PO group in 1982	1964-1981
EE	EE Series	Electrical Engineering : This group moved to Engineering division in 1961 Electrical Projects and Installation : EE group moved to PO Group in 1968	1954-1960 1964-1966
EI	EI Series	Ejection and Instrumentation : The group moved to BT group in 1982	1979-1981
EM	EM Series	Emulsion	1958-1960
EN	EN Series	Engineering	1955-1960
ENS	ENS Series	Electronics News Sheet	1957-1958
Energy	Energy Series	Energy Reports – Comité d'Energie	1980-1987
EP	EP Series	Experimental Planning MU-Experimental Planning (See MU)	1959-1964 1965-1972
FES	FES Series	Fast Ejection System	1969-1973
GE	GE Series	General	1958-1959
HBC	HBC Series	Hydrogen Bubble Chamber : This group moved to Track Chambers (TC) division in 1960	1958-1959
HI	HI Series	Hadron Injector : This group corresponds to the fusion of Booster and Linac groups in 1988	1988-1996
HP	HP Series	Hadron Production	1997-1999
LEA/LEAR	LEA/LEAR Series	Low Energy Antiproton Ring : LEA group moved to AR (Antiproton Rings) group in 1988	1982-1987
LINAC/LI/LIN LR/LRF/LIL	LI/LIN LR/LRF Series	Linear Accelerator (LINAC) group fusioned in 1988 with Booster group to form HI group Linac (LIN), 1953-1954 Linac and Radio Frequency (LR), 1955-1958 Machine Group-Linac (MG-LIN), 1959-1960 Linac (LIN), 1961-1978 Linac and Radio Frequency (LR), 1979-1981 Linac (LI), 1982-1987 LEP Injector Linac (LIL) Linac 1 : 1958 – 1992 – Linac 2 : 1978 – 2018 Linac 3 : 1994 – – Linac 4 : 2013 –	1953-1987
LP/LPI	LP/LPI Series	Lepton Pre-Injector, 1982-1987 Lepton Injector, 1988 Lepton Production, 1989-2000	1982-2000
MA	MA Series	Magnet	1955-1959 1964-1967 1973
MD	MD Series	Machine Development	1969-1986
ME	ME Series	Mechanical Engineering	1958-1959
MG	MG Series	Machine Group : This group had many sub-groups, but these one continued to publish under their own codification (e.g. PS-LIN insteas PS-MG-LIN) MG, MG-GL, MG-RF, MG-CO, MG-LI, MG-POW, MG-VA, MG-AL	1959-1960
ML	ML Series	Mechanical : ML Group moved to MT (Mechanical Technologies division) in 1990	1955 1967-1989
MM	MM Series	Magnets Measurements	1954-1960
MS	MS Series	MS Group	1966
MU	MU Series	Machine Utilisation : MU group became EA group in in 1985. This group had many sub-groups (MU-VA, MU-S, MU-ED…)	1964-1984
NP	NP Series	Nuclear Physics	1957-1959
NUFACT	NUFACT Series	Neutrino-Factory, NF	1999-2002
OP	OP Series	Operation : From CO group	1974-2002
PA	PA Series	Proton Synchrotron Ring and Areas : This group was created by the fusion of PSR and EA groups	1988-1996
PO/POW	PO/POW Series	Power : This group received the ED group in 1982	1960-2002
PP	PP Series	Particle Production	2000-2002
PSO	PSO Series	Proton Synchrotron Operation	1959-1960
PSR	PSR Series	Proton Synchrotron Ring : PSR fusioned to EA group to form PA in 1988	1982-1987
RF	RF Series	Radio Frequency : RF group moved to to SR group in 1968	1955-1967 1982-2002
SA	SA Series	Services Administratifs	1982-1987
SC	SC Series	Synchrotron-Cyclotron	1982-1990
SE	SE Series	Separators Group	1959
SM	SM Series	Synchrotron Magnets : The SM group moved to PSR group in 1982	1974-1981
SR	SR Series	Synchrotron Ring : The SR group moved to AE and SM groups in 1974	1968-1973
VA	VA Series	Vacuum Engineering : The VA group moved to MU group in 1964	1955-1956 1960-1964
TH	TH Series	Theory	1955-1959
1st-PS Doc	1st-PS Series	1st_PS Documents	1952-1953
Authors	Authors Series	by Author	1952-1958
PS-Bulletin Info	PS-Bulletin-Info Series	PS Bulletin Information N°1 to 108	1976-1999
PS Staff Meetings	PS-Staff-Meeting Series	PS Staff Meetings N°1 to 118	1952-1959
MOC	MOC Series	Machine Operation Committee (MOC)	1958-1959
Parameters Committee	Parameters Committee Series	Parameters Committee	1954-1957
ICM	ICM Series	Installation Committee	1958-1959
RIC	RIC Series	Running-in Committee (RIC)	1958-1960

History of PS groups

ACCELERATORS AND EXPERIMENTAL AREAS
Machine Group	Apparatus Layout	PS-MG-AL	1959-1960
MPS Division	Apparatus Layout	MPS-AL	1961-1964
MPS Division	Machine Utilisation	MPS-MU	1964-1975
PS Division	Machine Utilisation	PS-MU	1976-1984
	Experimental Areas	PS-EA	1985-1987
	PS Ring and Areas	PS-PA	1988-1996
	Circular Accelerators and Areas	PS-CA	1997-2000
	Accelerators and Experimental Areas	PS-AE	2000-2002

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BEAM DIAGNOSTICS
PS Division	Beam Diagnostics	PS-BD	1991-2002

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CONTROLS
PS Division	Electrical Engineering (inc. Controls)	PS-EE	1955-1955
	Engineering (Controls, Electrical, Mechanical, Drawing Office)	PS-EN	1956-1956
	Engineering (Controls, Vacuum, Electrical, Mechanical, Drawing Office)	PS-ENG	1957-1957
	Electrical Engineering (Power, Controls)	PS-EE	1958-1958
Machine Group	Controls	MG-CO	1959-1960
MPS Division	Controls	MPS-CO	1961-1973
MPS Division	Computer Controls & Instrumentation	MPS-CCI	1974-1975
PS Division	Computer Controls & Instrumentation	PS-CCI	1976-1978
PS Division	Controls	PS-CO	1979-2002

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DIVISIONAL RESOURCES
PS Division	Direction	PS-DIR	1955-1958
Machine Group	Group Leader's Office	MG-GL	1959-1960
MPS Division	Divisional Leader's Office	MPS-DL	1961-1961
	Divisional Leader's Office – General Studies	MPS-DL	1961-1963
	Divisional Leader's Office and Mechanical Section	MPS-DL	1964-1967
	Divisional Leader's Office	MPS-DL	1968-1975
PS Division	Divisional Leader's Office	PS-DL	1976-1982
	Administrative Services	PS-SA	1983-1983
	Divisional Leader's Office	PS-DL	1984-1987
	Direction	PS-DI	1988-1999
	Divisional Resources	PS-DR	2000-2002

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OPERATION
PS Division	Electrical Engineering (inc. Controls)	PS-EE	1955
	Engineering(Controls, Electrical, Mechanical, Drawing Office)	MG-ENG	1956
	Engineering (Controls, Vacuum, Electrical, Mechanical, Drawing Office)	MPS-ENG	1957
	Electrical Engineering (Power, Controls)	MPS-EE	1958
Machine Group	Controls	MG-CO	1959-1960
MPS Division	Controls	MPS-CO	1961-1973
MPS Division	Operation	MPS-OP	1974-1975
PS Division	Operation	PS-OP	1976-2002

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PARTICLE PRODUCTION
PS Group	Linac	PS-LIN	1953-1954
PS Division		PS-LIN	1955-1958
Machine Group		MG-LIN	1959-1960
MPS Division		MPS-LIN	1961-1975
PS Division	Linac	PS-LIN	1976-1979
	Linac and Radio-Frequency	PS-LR	1980-1981
	Linac	PS-LI	1982-1987
	Hadron Injector	PS-HI
	Hadron Production	PS-HP
	Particle Production	PS-PP

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POWER
PS Division	Electrical Engineering (inc. Controls)	PS-EE	1955
	Engineering(Controls, Electrical, Mechanical, Drawing Office)	MG-ENG	1956
	Engineering (Controls, Vacuum, Electrical, Mechanical, Drawing Office)	MPS-ENG	1957
	Electrical Engineering (Power, Controls)	MPS-EE	1958
Machine Group	Power	MG-PO	1959-1960
MPS Division	Power (PO Group recieved the EE Group in 1968)	MPS-POW	1961-1975
MPS Division	Electrical Development	MPS-ED	1964-1975
PS Division	Power	PS-PO	1976-1981
	Electrical Development	PS-ED	1976-1981
	Power (PO Group received ED Group in 1982)	PS-PO	1982-2002

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RADIO FREQUENCY
PS Group	Radio-Frequency		1953-1954
PS Division		PS-RF / PS-LRF	1955-1958
Machine Group		MG-RF	1959-1960
MPS Division		MPS-RF	1961-1967
	Synchrotron Ring	MPS-SR	1968-1973
	Acceleration & Ejection	MPS-AE	1974-1975
PS Division	Acceleration & Ejection	PS-AE	1976-1978
	Ejection and Instrumentation	PS-EI	1979-1981
	Radio-Frequency	PS-RF	1982-2002

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VACUUM
PS Division	Vacuum	PS-VA	1955-1956
PS Division	Vacuum (In 1957 VA was integrated into Engineering group)	PS-VA	1958
Machine Group	Vacuum	MG-VA	1959-1960
PS Division	Vacuum	MPS-VA	1961-1964
		MPS-MU-V	1965-1966
MPS Division	Mechanical / Vacuum Section	MPS-ML-V	1967-1969
MPS Division	Mechanical	CERN-MPS-ML	1970-1975
PS Division	Mechanical	CERN-PS-ML	1976-1989

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Ex-ANTIPROTON RINGS
PS Division	Antiproton Accumulator	PS-AA	1979-1987
	Low Energy Antiproton Ring	PS-LEA	1982-1987
	Antiproton Rings	PS-AR	1988-1996
	Hadron Production	PS-HP	1997-2000

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Ex-BOOSTER
MPS Division	B Serie	DL-B, MA-B, CO-B, MU-B, ML-B, RF-B, ED-B	1966-1967
SI Division	Synchrotron Injector Division (SI) in the PS Department SI-DL, SI-MAE, SI-EL, SI-ME, SI-BR MPS-SI-DL, MPS-SI-LIN, MPS-SI-ED, MPS-SI-MAE, MPS-SI-PO, MPS-SI-CO, MPS-SI-BR, MPS-SI-ML, MPS-SI-ML-V	SI-*	1968-1972
SI Division		MPS-SI-*	1968-1972
MPS Division	Booster	MPS-BR	1973
MPS Division	Booster Ring	MPS-BR	1974-1975
PS Division	Booster Ring	PS-BR	1976-1978
	Booster	PS-BR	1979-1987
	Hadron Injector	PS-HI	1988-1996
	Hadron Production	PS-HP	1997-2000

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Ex-ELECTRICAL DEVELOPMENT
MPS Division	Electrical Development	MPS-ED	1966-1975
PS Division	Electrical Development	PS-ED	1976-1981
	Transferred to PO group in 1982

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Ex-ELECTRICAL PROJECTS AND INSTALLATION
MPS Division	Electrical Projects and Installation	MPS-EE	1964-1966
	Transferred to PO group in 1967

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Ex-LEPTON PRODUCTION
PS Division	Lepton Pre-Injector	PS-LPI	1982-1987
	Lepton Injector	PS-LP	1988-1988
	Lepton Production	PS-LP	1989-2000
	Transferred to AE, RF, PP groups in 2000