Diamond Microstrip Detectors for Nuclear Physics Applications

* 9804332 Vlahovic我们将通过使用微带金刚石探测器来改进Jefferson实验室A厅的束流位置和束流监测系统。5微米厚的金刚石膜将被0.1微米厚的钛-金电极条覆盖，50微米宽，100微米间隔。当探测器被放置在CEBAF的光束中时，它将收集光束中电子产生的电子对。通过测量由每个条形电极收集的电荷量，将测量到5至10微米的精度的电子束位置。通过计算电子束产生的电荷总量，我们就可以测量电子束的电流。 此外，使用薄金刚石薄膜，我们将建立和测试一个原型探测器，用于测量的线性偏振光子束的偏振，使用修改后的对生产方法。改进后的旋光仪将在CEBAF能量下运行，分析能力将提高3倍。

***9804332VlahovicWe will improve the beam position and beam current monitoring systems in Hall A at Jefferson Lab by using a microstrip diamond detector. A 5 micron thick film of diamond will be covered by 0.1 micron thick titanium-gold electrode strips, 50 microns wide and 100 microns separated. The detector when placed in CEBAF`s beam will collect pairs generated by the electrons in the beam. By measuring the amount of charges collected by each of the strip electrodes the beam position be will measured to an accuracy of 5 to 10 microns. By calculating the total amount of charge generated by the beam we will measure the beam's current. In addition, using thin diamond films, we will build and test a prototype detector for measuring the polarization of a linearly polarized photon beam that uses a modified pair production method. The modified polarimeter will be operable at CEBAF energies and will have a factor of 3 improvement in analyzing power.***