Pixel X-ray detectors in epitaxial gallium arsenide with high-energy resolution capabilities (fano factor experimental determination)

被引：36

作者：

Bertuccio, G ^{[1
]}

Pullia, A ^{[1
]}

Lauter, J ^{[1
]}

Forster, A ^{[1
]}

Luth, H ^{[1
]}

机构：

[1] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, INST SCHICHT & IONENTECH, D-52425 JULICH, GERMANY

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 1997年 / 44卷 / 01期

关键词：

D O I：

10.1109/23.554815

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Gallium Arsenide pixel detectors with an area of 170 x 320 mu m(2) and thickness of 5 mu m, realized by molecular beam epitaxy, have been designed and tested with X- and gamma rays, No significant charge trapping effects have been observed, and a charge collection efficiency of 100% has been measured. At room temperature an energy resolution of 671 eV full width at half maximum (FWHM) at 59.54 keV has been obtained, with an electronic noise of 532 eV FWHM, With the detector cooled to 243 K, the electronic noise is reduced to 373 eV FWHM, and the K-alpha and K-beta lines of the Fe-55 spectrum can be resolved, The Fano factor for GaAs has been measured at room temperature with 59.5 keV photons yielding F = 0.12 +/- 0.01.

引用

页码：1 / 5

页数：5

共 13 条

[1] PERFORMANCE OF A NEW OHMIC CONTACT FOR GAAS PARTICLE DETECTORS [J].

ALIETTI, M ;

CANALI, C ;

CASTALDINI, A ;

CAVALLINI, A ;

CETRONIO, A ;

CHIOSSI, C ;

DAURIA, S ;

DELPAPA, C ;

LANZIERI, C ;

NAVA, F ;

VANNI, P .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 362 (2-3) :344-348

[2] Performance of SI LEC GaAs detectors at 20 degrees C and -30 degrees C for X- and gamma-ray spectroscopy [J].

Bertuccio, G ;

Alietti, M ;

Canali, C ;

Cetronio, A ;

Chiossi, C ;

Nava, F .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 379 (01) :152-154

[3]

BERTUCCIO G, 1994, IEEE T NUCL SCI, V41, P1701

[4]

DEBERTIN K, 1988, GAMMA XRAY SPECTROME, P159

[5] EVALUATION OF EPITAXIAL N-GAAS FOR NUCLEAR RADIATION DETECTION [J].

EBERHARDT, JE ;

RYAN, RD ;

TAVENDALE, AJ .

NUCLEAR INSTRUMENTS & METHODS, 1971, 94 (03) :463-+

[6] X-RAY-DETECTION USING BULK GAAS [J].

HOLLAND, AD ;

SHORT, ADT ;

CROSS, T .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 346 (1-2) :366-371

[7]

KNOLL GF, 1989, RAD DETECTION MEASUR, P363

[8] Epitaxial gallium arsenide for nuclear radiation detector applications [J].

Lauter, J ;

Bauser, E ;

Forster, A ;

Hardtdegen, H ;

Hollfelder, M ;

Luth, H ;

Protic, D ;

Zehender, S .

NUCLEAR PHYSICS B, 1995, :381-385

[9]

MCGREGOR DS, 1995, SEMICONDUCTOR SEMIME, V43, pCH10

[10]

PELFER PG, 1996, P 3 INT WKSHP GAAS R

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