Measurements of spectral and position resolution on a 16x16 pixel CZT imaging hard x-ray detector

Stefano Del Sordo; Gaetano Agnetta; B. Biondo; Ezio Caroli; Filippo Celi; Ariano Donati; Salvatore Giarrusso; A. Mangano; R. Montanti; Francesco Russo; Filomena Schiavone; John Buchan Stephen; M. Strazzeri; Giulio Ventura; Giovanni Pareschi; L. Abbene; Francesco Fauci; Giuseppe Raso; V. Radicci; S. Tangaro; Piernicola Oliva; Simone Stumbo

doi:10.1117/12.508283

3 February 2004 Measurements of spectral and position resolution on a 16x16 pixel CZT imaging hard x-ray detector

Stefano Del Sordo, Gaetano Agnetta, B. Biondo, Ezio Caroli, Filippo Celi, Ariano Donati, Salvatore Giarrusso, A. Mangano, R. Montanti, Francesco Russo, Filomena Schiavone, John Buchan Stephen, M. Strazzeri, Giulio Ventura, Giovanni Pareschi, L. Abbene, Francesco Fauci, Giuseppe Raso, V. Radicci, S. Tangaro, Piernicola Oliva, Simone Stumbo

Author Affiliations +

Proceedings Volume 5165, X-Ray and Gamma-Ray Instrumentation for Astronomy XIII; (2004) https://doi.org/10.1117/12.508283
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Cadmium zinc telluride (CZT) pixel detectors show very good spectral and spatial resolution and are suitable for use in compact hard X-ray sensors operated without cryogenics. One of the more interesting astrophysical application is their use as focal plane detectors for multilayer hard X-ray telescopes operating in the 15 - 70 keV energy band. Here we report on results obtained using a 16 x 16 CZT pixel detector (10 x 10 x 1 mm³ single crystal) with 500 μm pixels operated at room temperature using standard commercial electronics. The results clearly show that the use of small pixels is effective in reducing one of the major drawbacks of CZT planar detectors i.e. the considerable amount of charge loss, due to hole trapping, which gives rise to a reduced energy resolution and a low energy tail in the pulse-height spectra.

Citation Download Citation

Stefano Del Sordo, Gaetano Agnetta, B. Biondo, Ezio Caroli, Filippo Celi, Ariano Donati, Salvatore Giarrusso, A. Mangano, R. Montanti, Francesco Russo, Filomena Schiavone, John Buchan Stephen, M. Strazzeri, Giulio Ventura, Giovanni Pareschi, L. Abbene, Francesco Fauci, Giuseppe Raso, V. Radicci, S. Tangaro, Piernicola Oliva, and Simone Stumbo "Measurements of spectral and position resolution on a 16x16 pixel CZT imaging hard x-ray detector", Proc. SPIE 5165, X-Ray and Gamma-Ray Instrumentation for Astronomy XIII, (3 February 2004); https://doi.org/10.1117/12.508283

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available