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Title: Experimental and simulational result multipactors in 112 MHz QWR injector

Abstract

The first RF commissioning of 112 MHz QWR superconducting electron gun was done in late 2014. The coaxial Fundamental Power Coupler (FPC) and Cathode Stalk (stalk) were installed and tested for the first time. During this experiment, we observed several multipacting barriers at different gun voltage levels. The simulation work was done within the same range. The comparison between the experimental observation and the simulation results are presented in this paper. The observations during the test are consisted with the simulation predictions. We were able to overcome most of the multipacting barriers and reach 1.8 MV gun voltage under pulsed mode after several round of conditioning processes.

Authors:
 [1];  [2];  [3];  [1];  [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1188239
Report Number(s):
BNL-107130-2015-CP
R&D Project: KBCH139; KB0202011; TRN: US1500246
DOE Contract Number:  
SC00112704
Resource Type:
Conference
Resource Relation:
Conference: 6th International Particle Accelerator Conference (IPAC’15), Richmond, VA (United States), 3-8 May 2015
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; MHZ RANGE 100-1000; SIMULATION; ELECTRIC POTENTIAL; CATHODES; ELECTRON GUNS; COMMISSIONING; PULSES; BEAM INJECTION; BROOKHAVEN RHIC; SUPERCONDUCTING DEVICES; TESTING; VALIDATION; SECONDARY EMISSION

Citation Formats

Xin, T., Ben-Zvi, I., Belomestnykh, S., Brutus, J. C., Skaritka, J., Wu, Q., and Xiao, B. Experimental and simulational result multipactors in 112 MHz QWR injector. United States: N. p., 2015. Web.
Xin, T., Ben-Zvi, I., Belomestnykh, S., Brutus, J. C., Skaritka, J., Wu, Q., & Xiao, B. Experimental and simulational result multipactors in 112 MHz QWR injector. United States.
Xin, T., Ben-Zvi, I., Belomestnykh, S., Brutus, J. C., Skaritka, J., Wu, Q., and Xiao, B. 2015. "Experimental and simulational result multipactors in 112 MHz QWR injector". United States. https://www.osti.gov/servlets/purl/1188239.
@article{osti_1188239,
title = {Experimental and simulational result multipactors in 112 MHz QWR injector},
author = {Xin, T. and Ben-Zvi, I. and Belomestnykh, S. and Brutus, J. C. and Skaritka, J. and Wu, Q. and Xiao, B.},
abstractNote = {The first RF commissioning of 112 MHz QWR superconducting electron gun was done in late 2014. The coaxial Fundamental Power Coupler (FPC) and Cathode Stalk (stalk) were installed and tested for the first time. During this experiment, we observed several multipacting barriers at different gun voltage levels. The simulation work was done within the same range. The comparison between the experimental observation and the simulation results are presented in this paper. The observations during the test are consisted with the simulation predictions. We were able to overcome most of the multipacting barriers and reach 1.8 MV gun voltage under pulsed mode after several round of conditioning processes.},
doi = {},
url = {https://www.osti.gov/biblio/1188239}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun May 03 00:00:00 EDT 2015},
month = {Sun May 03 00:00:00 EDT 2015}
}

Conference:
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