Kuehner, Bromley and Almvist in Control Room

Summary
Full Description

L-R: John Kuehner, D. Allan Bromley; Einar (Joe) Almvist converse. Caption courtesy D. Allan Bromley: "My research group in the Control Room for the Chalk River 4 MV Van de Graaff accelerator.[...] All of the instrumentation was vacuum-tube based and behind us on the right was a 50-channel multi-channel analyzer, each channel of which had to be separately adjusted at least once a day because the circuitry drifted continually. Our only local laboratory computer at the time was the Marchant desk unit shown here. We were fortunate in having the world's only liter of 3He gas and because we had constructed a suitable recovery system we were able to recycle that liter of gas through the accelerator literally hundreds of times, losing only the 3He nuclei that were eventually driven into target materials. The possession of this 3He gave us a definite advantage over other nuclear physicists worldwide in terms of our ability to study higher-lying states in light nuclei.", Credit Line: AIP Emilio Segrè Visual Archives, Bromley Collection

Abstract/Description:	L-R: John Kuehner, D. Allan Bromley; Einar (Joe) Almvist converse. Caption courtesy D. Allan Bromley: "My research group in the Control Room for the Chalk River 4 MV Van de Graaff accelerator.[...] All of the instrumentation was vacuum-tube based and behind us on the right was a 50-channel multi-channel analyzer, each channel of which had to be separately adjusted at least once a day because the circuitry drifted continually. Our only local laboratory computer at the time was the Marchant desk unit shown here. We were fortunate in having the world's only liter of 3He gas and because we had constructed a suitable recovery system we were able to recycle that liter of gas through the accelerator literally hundreds of times, losing only the 3He nuclei that were eventually driven into target materials. The possession of this 3He gave us a definite advantage over other nuclear physicists worldwide in terms of our ability to study higher-lying states in light nuclei."
Subject(s):	Profile portraits Eyeglasses Control boards (Electrical engineering) Particle accelerators Equipment and supplies Computers Nuclear physics--Research Vacuum-tubes Chalk River (Ont.) Bromley, D. Allan (David Allan), 1926-2005 Kuehner, John Alan Almqvist, Einar
Date Created:	1956
Credit Line:	AIP Emilio Segrè Visual Archives, Bromley Collection
Catalog ID:	Bromley David Allan F1

Title:	Kuehner, Bromley and Almvist in Control Room.
Name(s):	David Allan Bromley, Donor
Type of Resource:	still image
Date Created:	1956
Extent:	1 photographic print (black and white; 9.5 x 7.25 inches)
Abstract/Description:	L-R: John Kuehner, D. Allan Bromley; Einar (Joe) Almvist converse. Caption courtesy D. Allan Bromley: "My research group in the Control Room for the Chalk River 4 MV Van de Graaff accelerator.[...] All of the instrumentation was vacuum-tube based and behind us on the right was a 50-channel multi-channel analyzer, each channel of which had to be separately adjusted at least once a day because the circuitry drifted continually. Our only local laboratory computer at the time was the Marchant desk unit shown here. We were fortunate in having the world's only liter of 3He gas and because we had constructed a suitable recovery system we were able to recycle that liter of gas through the accelerator literally hundreds of times, losing only the 3He nuclei that were eventually driven into target materials. The possession of this 3He gave us a definite advantage over other nuclear physicists worldwide in terms of our ability to study higher-lying states in light nuclei."
Identifier(s):	Bromley David Allan F1 (Catalog ID)
Note(s):	Credit Line: AIP Emilio Segrè Visual Archives, Bromley Collection
Subject(s):	Profile portraits Eyeglasses Control boards (Electrical engineering) Particle accelerators Equipment and supplies Computers Nuclear physics--Research Vacuum-tubes Chalk River (Ont.) Bromley, D. Allan (David Allan), 1926-2005 Kuehner, John Alan Almqvist, Einar
Held by:	Niels Bohr Library & Archives
Copyright Holder:	American Institute of Physics
Related Title:	Bromley Collection.
In Collections:	Bromley Collection