Electron Scattering Experiments with Polarized Hydrogen/Deuterium Internal Targets
A high-density polarized hydrogen/deuterium internal gas target is presented. The target is based on a setup previously used in electron scattering experiments with tensor-polarized deuterium. To increase the target thickness, new state-of-the-art permanent sextupole magnets and a more powerful pumping system were installed together with a longer (60 cm) and colder ({approximately}70 K) cylindrical storage cell. Electro-nuclear spin observables were measured by scattering longitudinally polarized electrons stored in the AmPS ring (NIFHEF) from the target gas. The product of electron beam and target polarization was determined from the known e{prime}p (quasi) elastic asymmetries. A target thickness of 1.1 {times} 10{sup 14} atoms/cm{sup 2} was achieved which with typical beam currents of 110 mA corresponds to a luminosity of about 7.5 {times} 10{sup 31} cm{sup {minus}2}s{sup {minus}1}. Target and beam polarizations up to 0.7 and 0.65, respectively, were obtained.
- Research Organization:
- Dept. of Physics and Astronomy, VU, Amsterdam (NL); NIKHEF, Amsterdam (NL)
- Sponsoring Organization:
- Stichting voor Fundamenteel Onderzoek der Materie
- OSTI ID:
- 784506
- Report Number(s):
- ISBN 1-56396-928-9; ISSN 0094-0243X; CODEN APCPCS; ISBN 1-56396-928-9; ISSN 0094-0243X; CODEN APCPCS; TRN: US0106097
- Resource Relation:
- Conference: Nuclear Physics at Storage Rings: Fourth International Conference: STORI99, Bloomington, IN (US), 09/12/1999--09/16/1999; Other Information: PBD: 31 Dec 2000
- Country of Publication:
- United States
- Language:
- English
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