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) |
|---|---|
| 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 |
|---|---|
| City | Chicago, IL, USA |
| Period | 3/20/89 → 3/23/89 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Time-dependent degradation of an ion-focused ATA beam. / Fawley, W. M.; Boyd, J. K.; Caporaso, George J; Chambers, F. W.; Chong, Y. P.; Hildum, J. S.; Lee, P.; Orzechowski, T. J.; Rogers, D. R.; Struve, K. W.; Weir, J. T.
Proc 1989 IEEE Part Accel Conf. ed. / Floyd Bennett; Joyce Kopta. Piscataway, NJ, United States : Publ by IEEE, 1989. p. 1489-1491.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Time-dependent degradation of an ion-focused ATA beam
AU - Fawley, W. M.
AU - Boyd, J. K.
AU - Caporaso, George J
AU - Chambers, F. W.
AU - Chong, Y. P.
AU - Hildum, J. S.
AU - Lee, P.
AU - Orzechowski, T. J.
AU - Rogers, D. R.
AU - Struve, K. W.
AU - Weir, J. T.
PY - 1989
Y1 - 1989
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0024912434&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024912434&partnerID=8YFLogxK
M3 - Conference contribution
SP - 1489
EP - 1491
BT - Proc 1989 IEEE Part Accel Conf
A2 - Bennett, Floyd
A2 - Kopta, Joyce
PB - Publ by IEEE
CY - Piscataway, NJ, United States
ER -