Polarized Targets for the Clas Detector at Jefferson Lab.

Keith, C. D.

Technical Information Center Oak Ridge Tennessee

关键词: Polarized targets;    Spectrometers;    Physics;    Tests;    Performance evaluation;   

RP-ID  :  DE2003804050

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The CEBAF Large Acceptance Spectrometer is utilized for a wide ranging physics program at Jefferson Lab, including measurements of polarized structure functions and future tests of the Gerasimov-Drell-Hearn sum rule. To realize the entire extent of the program, polarized targets that can function inside the spectrometer without severely affecting its performance are necessary. In these proceedings, I describe a continuously polarized solid target of protons and deuterons that operated inside CLAS for a total of ten months from 1998 to 2001. The conceptual design of a frozen spin target that will more fully exploit the 4 pi acceptance of CLAS is also introduced.