AN INTERNAL POLARIZED HE-3 TARGET FOR ELECTRON STORAGE-RINGS

被引：2

作者：

KRAMER, LH ^{[1
]}

DESCHEPPER, D ^{[1
]}

MILNER, RG ^{[1
]}

PATE, SF ^{[1
]}

SHIN, T ^{[1
]}

机构：

[1] MIT,NUCL SCI LAB,CAMBRIDGE,MA 02139

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1995年 / 362卷 / 01期

关键词：

D O I：

10.1016/0168-9002(95)00232-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe an internal polarized He-3 target currently under construction which will be used in several electron storage ring experiments. The target is based on the technique of metastability exchange laser optical pumping, where the polarized atoms flow into a cryogenically-cooled storage cell. This novel technique allows for high precision measurements where the beam interacts with the pure atomic species. Both the HERMES experiment at DESY and the BLAST detector at the MIT Bates Laboratory will use the polarized He-3 target in their measurements. Details of the target system, including the provisions needed to incorporate the target into the electron storage ring, are presented.

引用

页码：32 / 35

页数：4

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