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Geissen polarization facility. I. Lambshift source

Abstract

A source for the production of polarized negative hydrogen or deuterium ions following the Lambshift method is described. A duoplasmatron with expansion cup and extended ion optics is used. The polarization is generated by a diabetic zero field passage of the metastable atoms. For precision experiments the polarization can be switched 'on' and 'off' with a frequency of 1 kHz by a disturbance with a transverse magnetic field. The quantization axis can be rotated with a Wien filter. All source components are installed in a compact vacuum chamber, which allows high effective pumping speeds. The overal length of the source including the Wien filter is 1.7m. With a 10mm diameter cesium canal typical H/sup -/ currents of 0.6-0.75 ..mu..A (P=0.7 to 0.75) and maximum currents of 0.9..mu..A are obtained.
Authors:
Arnold, W; Berg, H; Krause, H H; Ulbricht, J; Clausnitzer, G [1] 
  1. Giessen Univ. (Germany, F.R.). Strahlenzentrum
Publication Date:
Jun 15, 1977
Product Type:
Journal Article
Reference Number:
AIX-08-343638; EDB-78-022739
Resource Relation:
Journal Name: Nucl. Instrum. Methods; (Netherlands); Journal Volume: 143:3
Subject:
43 PARTICLE ACCELERATORS; DUOPLASMATRONS; PERFORMANCE; POLARIZED BEAMS; BEAM PRODUCTION; ANODES; APERTURES; ARGON; BEAM EXTRACTION; BEAM OPTICS; BEAM TRANSPORT; CATHODES; CESIUM; DEUTERIUM IONS; ELECTRIC FIELDS; ELECTROSTATIC LENSES; FOCUSING; HIGH VACUUM; HYDROGEN IONS 1 MINUS; LAMB SHIFT; MAGNETIC FIELDS; NANO AMP BEAM CURRENTS; POWER SUPPLIES; SPACE CHARGE; SPECIFICATIONS; VACUUM SYSTEMS; ALKALI METALS; ANIONS; BEAM CURRENTS; BEAMS; CHARGED PARTICLES; CURRENTS; ELECTRODES; ELECTRON TUBES; ELECTRONIC EQUIPMENT; ELEMENTS; HYDROGEN IONS; ION SOURCES; IONS; LENSES; METALS; NONMETALS; OPENINGS; PLASMATRONS; RARE GASES; SPECTRAL SHIFT; 430301* - Particle Accelerators- Ion Sources
OSTI ID:
5303842
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NUIMA
Submitting Site:
INIS
Size:
Pages: 441-455
Announcement Date:

Citation Formats

Arnold, W, Berg, H, Krause, H H, Ulbricht, J, and Clausnitzer, G. Geissen polarization facility. I. Lambshift source. Netherlands: N. p., 1977. Web. doi:10.1016/0029-554X(77)90232-4.
Arnold, W, Berg, H, Krause, H H, Ulbricht, J, & Clausnitzer, G. Geissen polarization facility. I. Lambshift source. Netherlands. doi:10.1016/0029-554X(77)90232-4.
Arnold, W, Berg, H, Krause, H H, Ulbricht, J, and Clausnitzer, G. 1977. "Geissen polarization facility. I. Lambshift source." Netherlands. doi:10.1016/0029-554X(77)90232-4. https://www.osti.gov/servlets/purl/10.1016/0029-554X(77)90232-4.
@misc{etde_5303842,
title = {Geissen polarization facility. I. Lambshift source}
author = {Arnold, W, Berg, H, Krause, H H, Ulbricht, J, and Clausnitzer, G}
abstractNote = {A source for the production of polarized negative hydrogen or deuterium ions following the Lambshift method is described. A duoplasmatron with expansion cup and extended ion optics is used. The polarization is generated by a diabetic zero field passage of the metastable atoms. For precision experiments the polarization can be switched 'on' and 'off' with a frequency of 1 kHz by a disturbance with a transverse magnetic field. The quantization axis can be rotated with a Wien filter. All source components are installed in a compact vacuum chamber, which allows high effective pumping speeds. The overal length of the source including the Wien filter is 1.7m. With a 10mm diameter cesium canal typical H/sup -/ currents of 0.6-0.75 ..mu..A (P=0.7 to 0.75) and maximum currents of 0.9..mu..A are obtained.}
doi = {10.1016/0029-554X(77)90232-4}
journal = {Nucl. Instrum. Methods; (Netherlands)}
volume = {143:3}
journal type = {AC}
place = {Netherlands}
year = {1977}
month = {Jun}
}