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Title: Negative hydrogen ion sources for accelerators

Abstract

A variety of H{sup -} ion sources are in use at accelerator laboratories around the world. A list of these ion sources includes surface plasma sources with magnetron, Penning and surface converter geometries as well as magnetic-multipole volume sources with and without cesium. Just as varied is the means of igniting and maintaining magnetically confined plasmas. Hot and cold cathodes, radio frequency, and microwave power are all in use, as well as electron tandem source ignition. The extraction systems of accelerator H{sup -} ion sources are highly specialized utilizing magnetic and electric fields in their low energy beam transport systems to produce direct current, as well as pulsed and/or chopped beams with a variety of time structures. Within this paper, specific ion sources utilized at accelerator laboratories shall be reviewed along with the physics of surface and volume H{sup -} production in regard to source emittance. Current research trends including aperture modeling, thermal modeling, surface conditioning, and laser diagnostics will also be discussed.

Authors:
; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
15020247
Report Number(s):
FERMILAB-PUB-05-094-AD
TRN: US0605054
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Journal Article
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; APERTURES; BEAM TRANSPORT; CATHODES; CESIUM; DIRECT CURRENT; ELECTRIC FIELDS; ELECTRONS; HYDROGEN IONS; IGNITION; ION SOURCES; LASERS; PHYSICS; Accelerators

Citation Formats

Moehs, D P, /Fermilab, Peters, J, /DESY, Sherman, J, and /Los Alamos. Negative hydrogen ion sources for accelerators. United States: N. p., 2005. Web. doi:10.1109/TPS.2005.860067.
Moehs, D P, /Fermilab, Peters, J, /DESY, Sherman, J, & /Los Alamos. Negative hydrogen ion sources for accelerators. United States. https://doi.org/10.1109/TPS.2005.860067
Moehs, D P, /Fermilab, Peters, J, /DESY, Sherman, J, and /Los Alamos. 2005. "Negative hydrogen ion sources for accelerators". United States. https://doi.org/10.1109/TPS.2005.860067. https://www.osti.gov/servlets/purl/15020247.
@article{osti_15020247,
title = {Negative hydrogen ion sources for accelerators},
author = {Moehs, D P and /Fermilab and Peters, J and /DESY and Sherman, J and /Los Alamos},
abstractNote = {A variety of H{sup -} ion sources are in use at accelerator laboratories around the world. A list of these ion sources includes surface plasma sources with magnetron, Penning and surface converter geometries as well as magnetic-multipole volume sources with and without cesium. Just as varied is the means of igniting and maintaining magnetically confined plasmas. Hot and cold cathodes, radio frequency, and microwave power are all in use, as well as electron tandem source ignition. The extraction systems of accelerator H{sup -} ion sources are highly specialized utilizing magnetic and electric fields in their low energy beam transport systems to produce direct current, as well as pulsed and/or chopped beams with a variety of time structures. Within this paper, specific ion sources utilized at accelerator laboratories shall be reviewed along with the physics of surface and volume H{sup -} production in regard to source emittance. Current research trends including aperture modeling, thermal modeling, surface conditioning, and laser diagnostics will also be discussed.},
doi = {10.1109/TPS.2005.860067},
url = {https://www.osti.gov/biblio/15020247}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Aug 01 00:00:00 EDT 2005},
month = {Mon Aug 01 00:00:00 EDT 2005}
}