TARGET WITH A FROZEN NUCLEAR-POLARIZATION FOR EXPERIMENTS AT LOW ENERGIES

Authors
BORISOV NS MATAFONOV VN NEGANOV AB PLIS YA SHCHEVELEV ON USOV YA JANSKY I ROTTER M SEDLAK B WILHELM I GUREVICH GM LUKHANIN AA JELINEK J SRNKA A SKRBEK L
Citation
Ns. Borisov et al., TARGET WITH A FROZEN NUCLEAR-POLARIZATION FOR EXPERIMENTS AT LOW ENERGIES, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 345(3), 1994, pp. 421-428
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
345
Issue
3
Year of publication
1994
Pages
421 - 428
Database
ISI
SICI code
0168-9002(1994)345:3<421:TWAFNF>2.0.ZU;2-X
Abstract
A target with a frozen spin polarization of protons in 1.2-propanediol with a paramagnetic Cr(V) impurity is described, intended for polariz ation parameter studies in np-scattering at approximately 15 MeV neutr on energy. The target of cylindrical shape of 2 cm diameter and 6 cm l ong with an initial polarization of 95 +/- 3%, obtainable by the dynam ic polarization technique, is placed at a temperature about 20 mK in a magnetic field of 0.37 T generated by a magnetic system, which provid es a large aperture for scattered particles. The relaxation time for t he spin polarization in an experiment is about 1000 hours.