CERN Accelerating science

Article
Title The Berkeley gas-filled separator
Author(s) Ninov, V ; Gregorich, K E ; McGrath, C A
Affiliation (Lawrence Berkeley Lab)
Publication 1998
In: 2nd International Conference on Exotic Nuclei and Atomic Masses, Bellaire, MI, USA, 23 - 27 Jun 1998, pp.704-7
Abstract The BGS is being constructed at the 88-Inch Cyclotron at LBNL in Berkeley. The magnetic configuration of the BGS will allow a large angular acceptance and good suppression of primary beam particles. BGS operates as a mass spectrometer with a A/ Delta A approximately =200 and as a gas filled separator at pressures between 0.1-50 hPa. The reaction products recoiling off a thin target will be collected with efficiencies from 10-80at the focal plane. A Monte Carlo simulation program of the ion transport through the gas-filled magnets in combination of 3-dimensional TOSCA field maps has been developed and reproduces closely the experimental behavior of BGS. (9 refs).



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