OBSERVATION OF ULTRACOLD-NEUTRON PRODUCTION BY 9-A COLD NEUTRONS IN SUPERFLUID-HELIUM

被引：59
作者：
YOSHIKI, H
SAKAI, K
OGURA, M
KAWAI, T
MASUDA, Y
NAKAJIMA, T
TAKAYAMA, T
TANAKA, S
YAMAGUCHI, A
机构：
[1] TOHOKU UNIV,BUBBLE CHAMBER PHYS LAB,SENDAI,MIYAGI 980,JAPAN
[2] KYOTO UNIV,INST RES REACTOR,OSAKA 59004,JAPAN
来源：
PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 09期
关键词：
D O I：
10.1103/PhysRevLett.68.1323
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Using velocity-analyzed cold neutrons we observed the production of ultracold neutrons in superfluid He-4 at 0.45 to 1.5 K. Ultracold neutrons are produced for an incident neutron wavelength of 8.78 +/- 0.06 angstrom which agrees with the single-phonon emission theory. The temperature variation of the ultracold-neutron storage lifetime is also discussed.
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页码：1323 / 1326
页数：4
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