Apparatus for parity-violation study via capture γ-ray measurements
- Resource Type
- Authors
- J. D. Bowman; A. Masaike; S. J. Seestrom; A. Matsuda; E. I. Sharapov; Sharon L. Stephenson; T. Haseyama; S. I. Penttilä; B. Crawford; R.N. Roberson; C. M. Frankle
- Source
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 433:603-613
- Subject
- Physics
Nuclear and High Energy Physics
Astrophysics::High Energy Astrophysical Phenomena
media_common.quotation_subject
Detector
Parity (physics)
Scintillator
Neutron radiation
Epithermal neutron
Asymmetry
Nuclear physics
Neutron capture
Physics::Accelerator Physics
Neutron
Nuclear Experiment
Instrumentation
media_common
- Language
- ISSN
- 0168-9002
The Time Reversal and Parity at Low Energy (TRIPLE) Collaboration uses a short-pulsed longitudinally polarized epithermal neutron beam at the Los Alamos Neutron Science Center to study spatial parity violation (PV) in the compound nucleus. The typical PV experiment measures the longitudinal cross-section asymmetry by the neutron transmission method through thick samples. Neutron capture γ-ray measurement provides an alternative method for the study of PV, which enables the use of smaller amounts of isotopically pure target material. In 1995 TRIPLE commissioned a new neutron-capture detector consisting of 24 pure CsI scintillators arranged in a cylindrical geometry around the neutron beam. The characteristics and the performance of the detector and spin transport are described.