Abstract
Detailed measurements of the time-dependent beam quality of an ATA (Advanced Test Accelerator) pulse transported on a KrF laser-photoionized benzene channel were performed. It was found that the tail portion (τ ≥ 20-30 ns) of the pulse becomes severely degraded both at high currents (I > 3 kA) and at long transport distances. Nonaxisymmetric channel ion motion is suspected as the predominant source of the problem. The authors discuss various experiments which varied laser properties (timing, fluence, profiles), background ion pressure, and electron beam current in order to study the physics behind this degradation.
Original language | English (US) |
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Title of host publication | Proc 1989 IEEE Part Accel Conf |
Editors | Floyd Bennett, Joyce Kopta |
Place of Publication | Piscataway, NJ, United States |
Publisher | Publ by IEEE |
Pages | 1489-1491 |
Number of pages | 3 |
State | Published - 1989 |
Externally published | Yes |
Event | Proceedings of the 1989 IEEE Particle Accelerator Conference - Chicago, IL, USA Duration: Mar 20 1989 → Mar 23 1989 |
Other
Other | Proceedings of the 1989 IEEE Particle Accelerator Conference |
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City | Chicago, IL, USA |
Period | 3/20/89 → 3/23/89 |
ASJC Scopus subject areas
- Engineering(all)