Zobrazeno 1 - 6
of 6
pro vyhledávání: '"R. S. Calder"'
Publikováno v:
IEEE Transactions on Electrical Insulation. 25:363-366
The performance of superconducting accelerating cavities are limited by the spurious field emission of electrons. Various vacuum surface treatments have been investigated in a UHV system to reduce this emission. On baked niobium samples, the applicat
Comparison of chemical cleaning methods of aluminum alloy vacuum chambers for electron storage rings
Autor:
J.‐P. Bacher, F. Le Normand, D. Latorre, N. Hilleret, R. S. Calder, A. G. Mathewson, W. Unterlerchner, G. Dominichini, A. Grillot, K. Booth
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 7:77-82
Three chemical precleaning methods suitable for aluminum alloy vacuum chambers for electron storage rings have been compared. The methods ranged from vapor degreasing with no chemical attack to light alkaline etching and strong alkaline etching in Na
Autor:
O. Grobner, R. S. Calder
Publikováno v:
IEEE Transactions on Nuclear Science. 20:760-764
The maximum beam intensity achieved in the ISR has been limited up to now by the beam induced pressure rise which builds up with the stacked proton current. This pressure increase can be explained by ion induced gas desorption from the vacuum chamber
Autor:
R S Calder
Publikováno v:
Physics Bulletin. 27:158-160
The intersecting storage ring at CERN requires very stringent vacuum conditions. Dr Calder analyses these requirements in the different machines encountered by a proton on its journey from production in an ion source and during acceleration up to the
Autor:
J B Forsyth, R S Calder
Publikováno v:
Journal of Scientific Instruments. 40:189-191
A current stabilizer is described for use with self-rectifying x-ray tubes where a three-phase supply is available. Fast response is obtained with a control ratio exceeding 100 by using hard valves in a pulse-operated circuit. The stabilizer has been
A 2 m helium cooled vacuum test section has been inserted into the CERN ISR to investigate problems which could be encountered in future cold bore proton machines. The UHV bore is cooled from the helium bath via a variable pressure gas filled space w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a82a0871d566b72d86c9a8956434c82
http://cds.cern.ch/record/314886
http://cds.cern.ch/record/314886