Measurements of the 3He spin relaxation below room temperature

被引:7
作者
Ino, Takashi [1 ]
Muto, Suguru [1 ]
机构
[1] KEK, High Energy Res Org, Tsukuba, Ibaraki 3050801, Japan
关键词
He-3; polarization; spin-exchange optical pumping (SEOP); neutron spin filter; relaxation;
D O I
10.1016/j.physb.2007.02.095
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The He-3 spin relaxation was measured below room temperature for spin-exchange optical pumping (SEOP) cells made of quartz glass. Although a large variation was observed among cells, the spin relaxation rates were found to have a similar temperature dependence. Below room temperature, the relaxation rate decreases slowly with temperature while it increases rather rapidly above room temperature. The phenomena below room temperature may be interpreted by adsorption of 3 He to the cell wall. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:182 / 184
页数:3
相关论文
共 10 条
[1]  
ALCOCK CB, 1984, CAN METALL QUART, V23, P309
[2]   Limits to the polarization for spin-exchange optical pumping of 3He [J].
Babcock, E ;
Chann, B ;
Walker, TG ;
Chen, WC ;
Gentile, TR .
PHYSICAL REVIEW LETTERS, 2006, 96 (08)
[3]   NUCLEAR POLARIZATION IN HE-3 GAS INDUCED BY OPTICAL PUMPING AND DIPOLAR EXCHANGE [J].
BOUCHIAT, MA ;
CARVER, TR ;
VARNUM, CM .
PHYSICAL REVIEW LETTERS, 1960, 5 (08) :373-375
[4]   Measurements of 3He spin-exchange rates -: art. no. 032703 [J].
Chann, B ;
Babcock, E ;
Anderson, LW ;
Walker, TG .
PHYSICAL REVIEW A, 2002, 66 (03)
[5]   POLARIZATION OF HE3 GAS BY OPTICAL PUMPING [J].
COLEGROVE, FD ;
SCHEARER, LD ;
WALTERS, GK .
PHYSICAL REVIEW, 1963, 132 (06) :2561-&
[6]   NATURE OF SURFACE-INDUCED NUCLEAR-SPIN RELAXATION OF GASEOUS HE3 [J].
FITZSIMMONS, WA ;
TANKERSLEY, LL ;
WALTERS, GK .
PHYSICAL REVIEW, 1969, 179 (01) :156-+
[7]   Development of 3He polarized neutron spin filters at KEK [J].
Ino, T ;
Muto, S ;
Masuda, Y ;
Kim, G ;
Skoy, VR .
PHYSICA B-CONDENSED MATTER, 2005, 356 (1-4) :109-113
[8]   Fundamental mechanisms of 3He relaxation on glass [J].
Jacob, RE ;
Driehuys, B ;
Saam, B .
CHEMICAL PHYSICS LETTERS, 2003, 370 (1-2) :261-267
[9]   GASEOUS HE-3 HE-3 MAGNETIC DIPOLAR SPIN RELAXATION [J].
NEWBURY, NR ;
BARTON, AS ;
CATES, GD ;
HAPPER, W ;
MIDDLETON, H .
PHYSICAL REVIEW A, 1993, 48 (06) :4411-4420
[10]   Spin-exchange optical pumping of noble-gas nuclei [J].
Walker, TG ;
Happer, W .
REVIEWS OF MODERN PHYSICS, 1997, 69 (02) :629-642