AN EXTERNAL PROTON BEAM AT THE CERN PROTON SYNCHROTRON
Trajectories of the exteral beam of the CERN proton synchrotron in the horizontal plane were calculated and show a moderate defocusing. The vertical motion, obtained for three trajectories by graphical piece-wise integration, show positive focusing. These predictions on particle directions were checked on nuclear emulsions placed in arrays at several distances from the target. At 19 m from the target, the observed focal point for the horizontal flux distribution is precisely the calculated value. Vertical profiles of the scattered proton flux at 37 m distance shows the most nearly parallel beam corresponds to a scattering angle of 28 mradians. A target diagram giving the angular distribution in space of scattered 24-Bev protons indicates that half the tracks lie within a space angle of 1 mradian from the average direction. The beam intensity at 90 m from the target is as high as 4000 protons/cm/sup 2/ per pulse. (J.S.R.)
- Research Organization:
- Universitat, Bern, Switzerland
- NSA Number:
- NSA-15-012273
- OSTI ID:
- 4073886
- Journal Information:
- Helvetica Physica Acta (Switzerland), Vol. Vol: 33; Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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