A new concept of monolithic silicon pixel detectors: hydrogenated amorphous silicon on ASIC

✍ Scribed by G. Anelli; S.C. Commichau; M. Despeisse; G. Dissertori; P. Jarron; C. Miazza; D. Moraes; A. Shah; G.M. Viertel; N. Wyrsch

• Book ID: 103852679
• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 392 KB
• Volume: 518
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2003.11.024

✦ Synopsis

A new concept of a monolithic pixel radiation detector is presented. It is based on the deposition of a film of hydrogenated amorphous silicon (a-Si:H) on an Application Specific Integrated Circuit (ASIC). For almost 20 years, several research groups tried to demonstrate that a-Si:H material could be used to build radiation detectors for particle physics applications. A novel approach is made by the deposition of a-Si:H directly on the readout ASIC. This technique is similar to the concept of monolithic pixel detectors, but offers considerable advantages. We present first results from tests of a n-i-p a-Si:H diode array deposited on a glass substrate and on the a-Si:H above ASIC prototype detector.