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Title: Experimental improvement of 750-keV H - beam transport at LANSCE Accelerator Facility

Abstract

The 750-keV low-energy beam transport of the Los Alamos Neutron Science Center (LANSCE) linac consists of two independent beam lines that facilitate simultaneous injection of H + and H - beams into the linear accelerator. The efficiency of beam transport within this structure is largely controlled by the effects of space-charge neutralization. In this study, we report a series of experiments that were performed to determine the level, as well as the required timescale for the onset of beam space charge neutralization. Measurements performed along the structure indicate significant variation of neutralized space charge beam dynamics in the beamline, and the corresponding results have been used to substantially improve beam transport with diminished beam losses. Finally, the analysis of experimental and theoretical data employed in optimization of beam performance in the transport line is discussed.

Authors:
 [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1459824
Alternate Identifier(s):
OSTI ID: 1548036
Report Number(s):
LA-UR-18-20928
Journal ID: ISSN 0168-9002; TRN: US1901806
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 904; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; Accelerator Design, Technology, and Operations

Citation Formats

Batygin, Y. K. Experimental improvement of 750-keV H - beam transport at LANSCE Accelerator Facility. United States: N. p., 2018. Web. doi:10.1016/j.nima.2018.06.054.
Batygin, Y. K. Experimental improvement of 750-keV H - beam transport at LANSCE Accelerator Facility. United States. doi:10.1016/j.nima.2018.06.054.
Batygin, Y. K. Thu . "Experimental improvement of 750-keV H - beam transport at LANSCE Accelerator Facility". United States. doi:10.1016/j.nima.2018.06.054. https://www.osti.gov/servlets/purl/1459824.
@article{osti_1459824,
title = {Experimental improvement of 750-keV H - beam transport at LANSCE Accelerator Facility},
author = {Batygin, Y. K.},
abstractNote = {The 750-keV low-energy beam transport of the Los Alamos Neutron Science Center (LANSCE) linac consists of two independent beam lines that facilitate simultaneous injection of H+ and H- beams into the linear accelerator. The efficiency of beam transport within this structure is largely controlled by the effects of space-charge neutralization. In this study, we report a series of experiments that were performed to determine the level, as well as the required timescale for the onset of beam space charge neutralization. Measurements performed along the structure indicate significant variation of neutralized space charge beam dynamics in the beamline, and the corresponding results have been used to substantially improve beam transport with diminished beam losses. Finally, the analysis of experimental and theoretical data employed in optimization of beam performance in the transport line is discussed.},
doi = {10.1016/j.nima.2018.06.054},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = ,
volume = 904,
place = {United States},
year = {2018},
month = {7}
}

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