A Focal Plane Polarimeter for CEBAF

用于 CEBAF 的焦平面旋光计

• 批准号: 9213869
• 负责人: Ronald Gilman
• 金额: $ 36.42万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-15 至 1995-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9213869&HistoricalAwards=false
• 关键词: Focal; Plane; Polarimeter; CEBAF

A focal plane polarimeter will be constructed for use at CEBAF by the Rutgers and W&M groups. In conjunction with a magnetic spectrometer, this device will determine the polarization state of protons and other hadrons produced in electron scattering and photon induced knockout reactions. The detector consists of a second scattering target (analyzer) plus tracking chambers before and after the analyzer. Measurement of the polarization, extracted from the second scatter angular distribution, will be used to measure the proton form factor, perform critical tests of models of the nucleon, of nuclear structure, and of reaction mechanisms involved in electron scattering. Wire chamber arrays, analyzer, support structure, and associated fast electronic signal processors will be developed.

罗格斯和W&amp；M团队将为CEBAF建造一个焦平面偏振计。与磁谱仪一起，该装置将确定在电子散射和光子诱导的敲除反应中产生的质子和其他强子的极化状态。该探测器由第二个散射目标（分析仪）和分析仪前后的跟踪室组成。从第二次散射角分布中提取的极化测量将用于测量质子形状因子，对核子、核结构和电子散射中涉及的反应机制的模型进行关键测试。将开发线室阵列、分析仪、支撑结构和相关的快速电子信号处理器。