DML and Foil Measurements of ETA Beam Radius

Nexsen, W ; Weir, J

Lawrence Livermore National Laboratory

关键词: 43 Particle Accelerators;    Beam Profiles;    Particle Beams;    Measuring Methods;   

DOI  :  10.2172/877781
RP-ID  :  UCRL-TR-213325
RP-ID  :  W-7405-ENG-48
RP-ID  :  877781

美国|英语

来源: UNT Digital Library

【 摘 要 】

Simultaneous measurements of the ETA beam radius have been made with a quartz foil and a diamagnetic loop (DML). While the measurements agreed at some settings they diverged at others. While the DML measures the rms radius of the total beam, the foil measures mainly the core and the divergence can be explained by the presence of a low density halo. Evidence of such a halo from other measurements is presented.