An X-ray detector (XRD) which identifies electrons using their synchrotron radiation will be installed in the AMY detector to improve its e/π separation ability by a factor of ∼ 30. The construction of the XRD has been completed, and various tests are proceeding using radioactive sources and cosmic rays. We are planning to install the XRD in the AMY detector during an upcoming shutdown in April. In this report, several unique features in the design and the results of the tests are presented.
Bibliographical noteFunding Information:
This work is supported by the US National Science Foundation and the US-Japan Collaboration on Detector Research and Development .