Archives of LINAC 1 & LINAC 2

Identity Statement [Top]

Reference code(s)



Archives of LINAC 1 & LINAC 2


1957 - 2010

Level of description


Extent of the unit of description

25 boxes, 35 items, 8 linear meters

Context [Top]

Name of creator

Linac 1 Group & Linac 1 Group

Administrative or biographical history

Linear accelerator 1 (Linac1) was designed in the early 1950s to serve as an injector for the Proton Synchrotron (PS). It accelerated its first beam in 1958 and was fully commissioned in 1959 when one turn of 50 MeV protons went round the PS. Linac1 was the only supplier of protons to the CERN synchrotrons until Linac2 took over in 1978. Linac1 accelerated light ions – such as deuterons and alpha particles, as well as oxygen and sulphur ions – for 33 years until its retirement in 1992. Linac3 took over ion production in 1994.

Linac2 started up in 1978, when it replaced Linac1. It was originally built to allow higher intensity beams for the accelerators that follow it in CERN's accelerator complex. Linac2 was switched off for the last time on 12 November 2018. It was replaced by Linac 4.

Immediate source of acquisition or transfer

Michael O’Neil from Hadron Sources and Linacs (HSL) Section, which is part of the Accelerators and Beam Physics Group (ABP) of the Beams Department (BE).

Content & Structure [Top]

Scope and content

The collection covers the period 1957 to 2010 and includes reports, notes, pictures, magnetic tapes, logbooks, tapes, cassette and tapes.

Appraisal, destruction and scheduling information

No document was destroyed.


No further accruals are expected.

System of arrangement

The original order has been preserved.

Conditions of access and use [Top]

Conditions governing access

See file level description and the CERN operational circular No 3: rules applicable to archival material and archiving at CERN. In general, records on any subject that are over 30 years old, and all records of a purely scientific nature, may be consulted.

Conditions governing reproduction

Copyright is retained by CERN, no reproduction without permission.

Language / scripts of material

Most of the material is written in English and French.

Finding aids

Listed to file level in the CERN Archives Database.

Allied materials [Top]

Related units of description




Description control [Top]

Archivist's note

Description prepared by Noé Morisod

Date(s) of description

Geneva, the 05th July 2023