Comparison of Analog and Digital Readout Electronics on the Processing of Charge-Sharing Events in Pixelated CdZnTe Detectors

Author

Bolotnikov, A.E. ; Bale, D. ; Butcher, J. ; Camarda, G.S. ; Cui, Yan ; De Geronimo, G. ; Fried, J. ; Hossain, Abrar ; Kim, Ki Hyun ; Marshall, Matthew ; Soldner, S. ; Petryk, Matthew ; Prokesch, M. ; Vernon, E. ; Yang, Guo-Min ; James, Ralph B.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

61

Issue

2

fYear

2014

fDate

Apr-14

Firstpage

787

Lastpage

792

Abstract

We present our results from testing 15×15×10 mm³ CdZnTe pixelated detectors using a readout system based on the H3D ASIC. Data obtained with an uncollimated ¹³⁷Cs source helped reveal details of the operational principle of such devices, and how the pulse-processing electronics may influence their performance. The responses of individual pixels were compared by using two different pulse processing approaches based on the analog shaping (H3D ASIC) and fitting of the waveforms as read out from hybrid preamplifiers.

Keywords

application specific integrated circuits; nuclear electronics; position sensitive particle detectors; radioactive sources; readout electronics; semiconductor counters; 3D position sensitive detector; H3D ASIC; analog readout electronics; charge-sharing event processing; device operational principle; digital readout electronics; hybrid preamplifiers; pixelated CdZnTe detectors; pulse-processing electronics; uncollimated ¹³⁷Cs source; Anodes; Application specific integrated circuits; Correlation; Detectors; Image quality; Readout electronics; Transient analysis; ASICs; CZT detectors; CdZnTe; crystal defects;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2014.2299493

Filename

6742639