GRAZING-INCIDENCE PROMPT GAMMA EMISSIONS AND RESONANCE-ENHANCED NEUTRON STANDING WAVES IN A THIN-FILM

Authors
ZHANG H GALLAGHER PD SATIJA SK LINDSTROM RM PAUL RL RUSSELL TP LAMBOOY P KRAMER EJ
Citation
H. Zhang et al., GRAZING-INCIDENCE PROMPT GAMMA EMISSIONS AND RESONANCE-ENHANCED NEUTRON STANDING WAVES IN A THIN-FILM, Physical review letters, 72(19), 1994, pp. 3044-3047
Citations number
11
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
72
Issue
19
Year of publication
1994
Pages
3044 - 3047
Database
ISI
SICI code
0031-9007(1994)72:19<3044:GPGEAR>2.0.ZU;2-S
Abstract
We report simultaneous measurements of neutron-capture prompt gamma em issions as well as neutron reflectivity on a polymer film with an embe dded Gd layer. Enhanced gamma-ray signals and reduced neutron reflecti vity were observed when the neutron standing waves were resonantly amp lified in the film. Fitting of both the gamma-ray and reflectivity dat a is of significant aid in uniquely characterizing the depth profile o f the polymer film as well as locating the Gd layer.