Performance of the high brightness linac for the advanced free-electron laser initiative at Los Alamos

R. L. Sheffield; R. H. Austin; K. C.D. Chan; S. M. Gierman; J. M. Kinross-Wright; S. H. Kong; D. C. Nguyen; S. J. Russell; C. A. Timmer

doi:10.1016/0168-9002(94)90385-9

Performance of the high brightness linac for the advanced free-electron laser initiative at Los Alamos

R. L. Sheffield, R. H. Austin, K. C.D. Chan, S. M. Gierman, J. M. Kinross-Wright, S. H. Kong, D. C. Nguyen, S. J. Russell, C. A. Timmer

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The AFEL accelerator has produced beams of 1 nC with peak currents greater than 100 A and a normalized, rms emittance less than 2π mm mrad. The 1300 MHz standing-wave accelerator uses on-axis coupling cells. The electron source is a photoinjector with a CsK₂Sb photocathode. The photoinjector is an integral part of a single 11-cell accelerator structure. The accelerator operates between 12 and 18 MeV. The beam emittance growth in the accelerator is minimized by using a photoinjector, a focusing solenoid to correct the emittance growth due to space charge, and a special design of the coupling slots between accelerator cavities to minimize quadrupole effects. This paper describes the experimental results and compares those results with PARMELA simulation. The simulation code PARMELA was modified for this effort. This modified version uses SUPERFISH files for the accelerator cavity fields, MAFIA files for the fields due to the coupling slots in the accelerator cells, and POISSON files for the solenoid field in the gun region.

Original language	English (US)
Pages (from-to)	371-374
Number of pages	4
Journal	Nuclear Inst. and Methods in Physics Research, A
Volume	341
Issue number	1-3
DOIs	https://doi.org/10.1016/0168-9002(94)90385-9
State	Published - Mar 1 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

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10.1016/0168-9002(94)90385-9

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Sheffield, R. L., Austin, R. H., Chan, K. C. D., Gierman, S. M., Kinross-Wright, J. M., Kong, S. H., Nguyen, D. C., Russell, S. J., & Timmer, C. A. (1994). Performance of the high brightness linac for the advanced free-electron laser initiative at Los Alamos. Nuclear Inst. and Methods in Physics Research, A, 341(1-3), 371-374. https://doi.org/10.1016/0168-9002(94)90385-9

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title = "Performance of the high brightness linac for the advanced free-electron laser initiative at Los Alamos",

abstract = "The AFEL accelerator has produced beams of 1 nC with peak currents greater than 100 A and a normalized, rms emittance less than 2π mm mrad. The 1300 MHz standing-wave accelerator uses on-axis coupling cells. The electron source is a photoinjector with a CsK2Sb photocathode. The photoinjector is an integral part of a single 11-cell accelerator structure. The accelerator operates between 12 and 18 MeV. The beam emittance growth in the accelerator is minimized by using a photoinjector, a focusing solenoid to correct the emittance growth due to space charge, and a special design of the coupling slots between accelerator cavities to minimize quadrupole effects. This paper describes the experimental results and compares those results with PARMELA simulation. The simulation code PARMELA was modified for this effort. This modified version uses SUPERFISH files for the accelerator cavity fields, MAFIA files for the fields due to the coupling slots in the accelerator cells, and POISSON files for the solenoid field in the gun region.",

author = "Sheffield, {R. L.} and Austin, {R. H.} and Chan, {K. C.D.} and Gierman, {S. M.} and Kinross-Wright, {J. M.} and Kong, {S. H.} and Nguyen, {D. C.} and Russell, {S. J.} and Timmer, {C. A.}",

note = "Funding Information: * Corresponding author . ** Work performed under the auspices of the US D.O.E. and funded by L{\`A}NL Laboratory Directed Research and Development.",

year = "1994",

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doi = "10.1016/0168-9002(94)90385-9",

language = "English (US)",

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AU - Sheffield, R. L.

AU - Austin, R. H.

AU - Chan, K. C.D.

AU - Gierman, S. M.

AU - Kinross-Wright, J. M.

AU - Kong, S. H.

AU - Nguyen, D. C.

AU - Russell, S. J.

AU - Timmer, C. A.

N1 - Funding Information: * Corresponding author . ** Work performed under the auspices of the US D.O.E. and funded by LÀNL Laboratory Directed Research and Development.

PY - 1994/3/1

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N2 - The AFEL accelerator has produced beams of 1 nC with peak currents greater than 100 A and a normalized, rms emittance less than 2π mm mrad. The 1300 MHz standing-wave accelerator uses on-axis coupling cells. The electron source is a photoinjector with a CsK2Sb photocathode. The photoinjector is an integral part of a single 11-cell accelerator structure. The accelerator operates between 12 and 18 MeV. The beam emittance growth in the accelerator is minimized by using a photoinjector, a focusing solenoid to correct the emittance growth due to space charge, and a special design of the coupling slots between accelerator cavities to minimize quadrupole effects. This paper describes the experimental results and compares those results with PARMELA simulation. The simulation code PARMELA was modified for this effort. This modified version uses SUPERFISH files for the accelerator cavity fields, MAFIA files for the fields due to the coupling slots in the accelerator cells, and POISSON files for the solenoid field in the gun region.

AB - The AFEL accelerator has produced beams of 1 nC with peak currents greater than 100 A and a normalized, rms emittance less than 2π mm mrad. The 1300 MHz standing-wave accelerator uses on-axis coupling cells. The electron source is a photoinjector with a CsK2Sb photocathode. The photoinjector is an integral part of a single 11-cell accelerator structure. The accelerator operates between 12 and 18 MeV. The beam emittance growth in the accelerator is minimized by using a photoinjector, a focusing solenoid to correct the emittance growth due to space charge, and a special design of the coupling slots between accelerator cavities to minimize quadrupole effects. This paper describes the experimental results and compares those results with PARMELA simulation. The simulation code PARMELA was modified for this effort. This modified version uses SUPERFISH files for the accelerator cavity fields, MAFIA files for the fields due to the coupling slots in the accelerator cells, and POISSON files for the solenoid field in the gun region.

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Performance of the high brightness linac for the advanced free-electron laser initiative at Los Alamos

Abstract

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