Transmission diamond membrane detector and vacuum window for external microbeams

Skukan, N.*; Grilj, V.*; Pomorski, M.*; 加田 渉*; 岩本 直也*; 大島 武; 神谷 富裕; Jaksic, M.*

no journal, , 

In order to develop diamond thin film detectors, an approximately 6 m thick membrane which was made of low cost optical quality scCVD diamond material was fabricated. The membrane was mounted to a flange as a vacuum exit window and characterized as a particle detector. The negligible intrinsic noise of the device provides an excellent signal-to-noise ratio, even for energetic proton incidence. Besides, the outstanding results of the radiation-hardness test indicate a wider possible range of device applications, including those that involve high currents of charged particles or long exposure to radiation.