Photon Factory, IMSS/KEK^* NHK science and technical research laboratories^** NHK engineering service^***
○Toshinobu Miyoshi^* Soichi Wakatsuki^* Noriyuki Igarashi^* Naohiro Matsugaki^* Yusuke Yamada^* Keiichi Hirano^* Kazuyuki Hyodo^* Masanori Kobayashi^* Kenkichi Tanioka^** Norifumi Egami^** Misao Kubota^** Teruo Kawai^***

We are now developing the X-ray high-gain avalanche rushing amorphous photoconductor (HARP) detector in collaboration with NHK Engineering Service (NHK-ES), funded by the 'Development of Systems and Technology for Advanced Measurement and Analysis' program (FY2004-2009) of the Japan Science and Technology Agency (JST). The purpose of the program is to develop a new measurement system for biological macromolecules based on the HARP detector system coupled with a micro-focus beamline optimized for smaller size crystals. The detector consists mainly of amorphous selenium membrane and a matrix field emitter array (FEA). Characteristics of membrane avalanche effect and the single driven FEA show the following advantages over the currently available area detectors: (1) higher sensitivity, (2) higher spatial resolution, (3) a higher framing rate, and (4) other characteristics such as lower noise and radiation hardness. The maximum framing rate (120 frames/sec) matches the frequency of the next generation light source such as Energy Recovery Light source (ERL). The evaluation experiment of a prototype HARP-FEA detector has been performed with synchrotron light source in Photon Factory in KEK. In the presentation, the results will be shown.