Published January 20, 1998
| Version v1
Journal article
The HERMES polarimeter
Creators
- 1. Phys. Inst. Univ. Erlangen-Nuernberg, Erwin-Rommelstr. 1, D-91058 Erlangen (Germany)
Description
The HERMES hydrogen target was operated during 1996 and 1997 in the HERA electron ring at DESY to study the spin structure of the proton by deep inelastic lepton proton scattering. An Atomic Beam Source (ABS) injects an atomic hydrogen beam of high intensity and high proton polarization into a storage cell, made of thin aluminum and coated with Drifilm. A sampling tube attached on the side of the cell forms a sample beam whose polarization is analyzed by means of a Breit-Rabi Polarimeter (BRP). A Target Gas Analyser (TGA) measures its degree of dissociation. During running with the 27.6 GeV positron beam the target ran smoothly at nuclear polarization of the atoms above 0.9 and molecular fraction below 10%
Additional details
Identifiers
- DOI
- 10.1063/1.54998;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 421
- Journal Issue
- 1
- Journal Page Range
- p. 156-161
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- 7. international workshop on polarized gas targets and polarized beams
- Dates
- 18-22 Aug 1997
- Place
- Urbana, IL (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40056640
- Subject category
- S43: PARTICLE ACCELERATORS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALUMINIUM; ATOMIC BEAM SOURCES; ATOMIC BEAMS; DEEP INELASTIC SCATTERING; DESY; ELECTRON RINGS; GEV RANGE; HERA STORAGE RING; HYDROGEN 1 TARGET; LEPTON-PROTON INTERACTIONS; NEUTRAL ATOM BEAM INJECTION; POLARIMETERS; POLARIMETRY; POLARIZATION; POLARIZED TARGETS; POSITRON BEAMS; SPIN
- Descriptors DEC
- ACCELERATORS; ANGULAR MOMENTUM; BEAM INJECTION; BEAMS; CYCLIC ACCELERATORS; ELEMENTS; ENERGY RANGE; INELASTIC SCATTERING; INTERACTIONS; LEPTON BEAMS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; METALS; NEUTRAL BEAM SOURCES; PARTICLE BEAMS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; SCATTERING; STORAGE RINGS; SYNCHROTRONS; TARGETS
Optional Information
- Notes
- (c) 1998 American Institute of Physics.
- Collaborations
- HERMES Collaboration