CERN-ARCH-BWP-1 to CERN-ARCH-BWP-44
1951 - 1989
Level of description
Extent of the unit of description
3 linear metres
Name of creator
Brian Williamson Powell (1934 -)
Brian Williamson Powell was born at Welwyn Garden City (England) on the 18th March 1934.
He graduated in physics in 1954 at the University of Manchester. From 1954 to 1955, still in Manchester, he joined the Anthony Newth group in order to work in the field of Cosmic Ray Physics. After working in the same field for the Imperial College of Science and Technology (University of London). He was awarded a Research Fellowship by the DSIR in 1957 to continue working on equipment for the semi-automatic measurement of bubble chamber photographs. In 1959 he obtained the Degree of Doctor of Philosophy in Cosmic Ray Physics. For the period from 1959 to 1969, he joined in the development of the CERN IEPS (Instrument pour l'Evaluation des Photographies).
Also involved in the development of the future Hough-Powell device (the HPD), Paul Hough came to CERN at about the same period. At the end of 1959, together they talked about Hough's ambition to find better ways of measuring photographs. They came up with the idea of what was initially called IEP-X and later became the HPD. In 1960, they developed and presented the basis of a technique for the automatic exploration of photographs under on-line computer control. This method allows faster measurement and analysis of bubble chamber photographs. Its construction and programming developed form with the collaboration between the Laboratories of Berkeley, Brookhaven, CERN and Rutherford.
Immediate source of acquisition or transfer
Received from Brian Powell, 27 September 1999.
Scope and content
The documents in this collection were created or compiled by Brian Powell. They deal with the development of the Hough-Powell Device (the HPD). The period covered by these documents begins with the invention of the HPD machine and continues with its development and functioning.
Appraisal, destruction and scheduling information
Nothing was destroyed.
No further accruals are expected.
System of arrangement
All items have been kept in the order in which they were received from Brian Powell.They are arranged as follows in groups, and within the groups in chronological order.
The organization of the collection:
- Correspondence, reports, notes, etc. September 1959 to November 1989 From CERN-ARCH-BWP-1 to CERN-ARCH-BWP-19
- Theses, reports and documents relevant to HPD January 1951 to January 1988 From CERN-ARCH-BWP-20 to CERN-ARCH-BWP-23
- Books from Brian Powell's collection July 1962 to April 1974 From CERN-ARCH-BWP-24 to CERN-ARCH-BWP-40
- Notebooks used during the HPD development September 1960 to November 1962 From CERN-ARCH-BWP-41 to CERN-ARCH-BWP-43
- Tape recording of Kowarski interviewing Paul Hough in 1975 CERN-ARCH-BWP-44
Conditions governing access
See file level description and the CERN operational circular No 3: rules applicable to archival material and archiving at CERN.
Conditions governing reproduction
Copyright is retained by CERN, no reproduction without permission.
Language / scripts of material
Most of the material is written in English, French or Dutch.
Listed to file level in the CERN Archive database.
Related units of description
Files related to the Nuclear Physics Division (NP) and the HPD machine, and:
- Bubble Chambers (CERN-ARCH-LK-107)
- HPD General. File 1 to 4 (CERN-ARCH-LK-102 to 105)
- DD (Data Handling Division) - File 3, 5, 8 (CERN-ARCH-LK-13, 15 and 8)
- Film Analysis Equipment II (CERN-ARCH-MGNH-3)
Description prepared by Kieran Pavel.
Date(s) of description: Geneva, the 1st February 2001. Revised 2007.