A high-pressure polarized He-3 gas target for the High Intensity Gamma Source (HI gamma S) facility at Duke Free Electron Laser Laboratory

doi:10.1016/j.nima.2007.08.243

	A high-pressure polarized He-3 gas target for the High Intensity Gamma Source (HI gamma S) facility at Duke Free Electron Laser Laboratory
	Kramer, Kevin ; Zong, Xing ; Lu, Rongchun ; Dutta, Dipangkar ; Gao, Haiyan ; Qian, Xin ; Ye, Qiang ; Zhu, Xiaofeng ; Averett, Todd ; Fuchs, Sabine
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
	2007-11-21
卷号	582 页码:318-325
关键词	He-3 gas target polarization SEOP NMR
ISSN号	0168-9002
DOI	10.1016/j.nima.2007.08.243
英文摘要	A new polarized He-3 target has been developed for nuclear physics experiments utilizing the High Intensity Gamma Source (HI gamma S) at the Duke Free Electron Laser Laboratory (DFELL). This target is designed for a broad program of physics employing high intensity polarized photons and a polarized He-3 target as an effective polarized neutron target. We report the performance of this target based on the technique of spin-exchange optical pumping (SEOP). Due to the significantly larger photon beam size at the HI gamma S facility than that of a typical electron beam at electron accelerator laboratories, the HI gamma S He-3 target contains a larger number of He-3 nuclei than any polarized He-3 targets reported previously. A target polarization on the order of 33-46% has been achieved from both a regular He-3-Rubidium (Rb) target and a hybrid target which contains a mixture of Rb and potassium. The target polarization has been determined within 3% using both the Electron Paramagnetic Resonance (EPR) technique and the NMR-AFP (Adiabatic Fast Passage) technique. (c) 2007 Elsevier B.V. All rights reserved.
WOS关键词	DEPENDENT FREQUENCY-SHIFTS ; NUCLEAR-POLARIZATION ; RB-HE-3 COLLISIONS ; EXCHANGE ; COMPRESSION
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics ; Spectroscopy
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000251500400004
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/27767]
专题	中国科学院近代物理研究所
通讯作者	Zong, Xing
作者单位	1.Duke Univ, Triangle Univ Nucl Lab, Durham, NC 27708 USA 2.Duke Univ, Dept Phys, Durham, NC 27708 USA 3.Lanzhou Univ, Inst Modern Phys, Lanzhou 730000, Peoples R China 4.Coll William & Mary, Dept Phys, Williamsburg, VA 23185 USA
推荐引用方式 GB/T 7714	Kramer, Kevin,Zong, Xing,Lu, Rongchun,et al. A high-pressure polarized He-3 gas target for the High Intensity Gamma Source (HI gamma S) facility at Duke Free Electron Laser Laboratory[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2007,582:318-325.
APA	Kramer, Kevin.,Zong, Xing.,Lu, Rongchun.,Dutta, Dipangkar.,Gao, Haiyan.,...&Fuchs, Sabine.(2007).A high-pressure polarized He-3 gas target for the High Intensity Gamma Source (HI gamma S) facility at Duke Free Electron Laser Laboratory.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,582,318-325.
MLA	Kramer, Kevin,et al."A high-pressure polarized He-3 gas target for the High Intensity Gamma Source (HI gamma S) facility at Duke Free Electron Laser Laboratory".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 582(2007):318-325.