A new polarizing neutron guide for the resonance spin echo spectrometer at saclay
作者:
K. Al Usta,
P. Böni,
R. Gáhler,
P. Hank,
M. Köppe,
R. Kahn,
A. Menelle,
W. Petry,
期刊:
Neutron News
(Taylor Available online 1998)
卷期:
Volume 9,
issue 2
页码: 29-33
ISSN:1044-8632
年代: 1998
DOI:10.1080/10448639808233449
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A polarizing neutron guide was built at the OrphCe Reactor at Saclay. It consists of a 4 m long polarizing bender (λ*=0.35 nm) followed by two straight sections of a non–polarizing supermirror antitrumpet (m=2, total length 7.5 m), with a velocity selector in between. The bender itself provides a capture flux of 9.4 . 108cm−2s−1within a wavelength range from 0.35 to 1.5 nm at an average polarization of =93 percent and an area of 50.25mm'. Neutron–polarization is maintained via guide fields at the selector and the antitrumpet. The guide supplies a resonance spin echo spectrometer that recently went into operation. Compared to the old guide the flux is increased by a factor of 15 at 0.6 nm.
点击下载:
PDF (347KB)
返 回