Cooled CdZnTe detectors for X-ray astronomny

被引：28

作者：

Bale, G

Holland, A

Seller, P

Lowe, B

机构：

[1] Univ Leicester, Dept Phys & Astron, Space Res Ctr, Leicester LE1 7RH, Leics, England

[2] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[3] Oxford Instruments, Abingdon OX14 1UJ, Oxon, England

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1999年 / 436卷 / 1-2期

关键词：

cadmium zinc telluride; pixel detector; X-ray astronomy; thermoelectric cooling;

D O I：

10.1016/S0168-9002(99)00612-9

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Recent results combining thermoelectrically cooled CdZnTe detectors with a low-noise Pentafet preamplifier are presented. Cooling between -30 degrees C and -40 degrees C reduces the leakage current of the detectors and allows the use of a pulsed reset preamplifier and long shaping times, significantly improving the energy resolution. Mn K-alpha X-rays at 5.9 keV have been observed with a resolution of less than 280 eV FWHM and a peak to background of more than 200:1. The Fano factor of the material has been estimated at 0.11 +/- 0.012 at -40 degrees C. The detector requirement for X-ray astronomy will be a photon-counting imaging spectrometer. A 16 x 16 element, bump bonded pixel detector is described and results from a prototype silicon array presented. The detector is constructed with ASIC amplifiers with a system noise of <25 electrons rms and should give an energy resolution comparable to the Pentafet results presented here. (C) 1999 Elsevier Science B.V. All rights reserved.

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页码：150 / 154

页数：5

相关论文

共 13 条

[1] Development of a 64x64 CdZnTe array and associated readout integrated circuit for use in nuclear medicine [J].

Barber, HB ;

Barrett, HH ;

Augustine, FL ;

Hamilton, WJ ;

Apotovsky, BA ;

Dereniak, EL ;

Doty, FP ;

Eskin, JD ;

Garcia, JP ;

Marks, DG ;

Matherson, KJ ;

Woolfenden, JM ;

Young, ET .

JOURNAL OF ELECTRONIC MATERIALS, 1997, 26 (06) :765-772

[2] CHARGE-TRANSPORT IN ARRAYS OF SEMICONDUCTOR GAMMA-RAY DETECTORS [J].

BARRETT, HH ;

ESKIN, JD ;

BARBER, HB .

PHYSICAL REVIEW LETTERS, 1995, 75 (01) :156-159

[3] CD1-XZNXTE4 GAMMA-RAY DETECTORS [J].

BUTLER, JF ;

LINGREN, CL ;

DOTY, FP .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1992, 39 (04) :605-609

[4] Current state-of-the-art industrial and research applications using room-temperature CdTe and CdZnTe solid state detectors [J].

Eisen, Y .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 380 (1-2) :431-439

[5] CZT strip detectors for imaging and spectroscopy: Collimated beam and ASIC readout experiments [J].

Kurczynski, P ;

Krizmanic, JF ;

Stahle, CM ;

Parsons, A ;

Palmer, DM ;

Barbier, LM ;

Bartlett, LM ;

Barthelmy, SD ;

Birsa, F ;

Gehrels, N ;

Odom, J ;

Hanchak, C ;

Shu, P ;

Teegarden, BJ ;

Tueller, J .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1997, 44 (03) :1011-1016

[6] Performance and simulation of CdZnTe strip detectors as sub-millimeter resolution imaging gamma radiation spectrometers [J].

Mayer, M ;

Boykin, DV ;

Cherry, ML ;

Courville, JF ;

Doty, FP ;

Drake, A ;

Guzik, TG ;

Hamel, LA ;

Larson, K ;

Macri, JR ;

McConnell, ML ;

Ryan, JM ;

Tousignant, O .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1997, 44 (03) :922-928

[7] THE PENTAFET AND ITS APPLICATIONS IN HIGH-RESOLUTION AND HIGH-RATE RADIATION SPECTROMETERS [J].

NASHASHIBI, T .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1992, 322 (03) :551-556

[8] EVALUATION OF CDZNTE DETRACTORS FOR SOFT-X-RAY APPLICATIONS [J].

NIEMELA, A ;

SIPILA, H .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1994, 41 (04) :1054-1057

[9] Recent progress in Cd1-xZnxTe radiation detectors [J].

Parnham, KB .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 377 (2-3) :487-491

[10] Energy selective imaging systems based on monolithic CdZnTe arrays operated in a high speed counting mode [J].

Polichar, R ;

Schirato, R ;

Shreve, D ;

Reed, J ;

Polichar, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 380 (1-2) :323-330