Measurement of the effect of non ionising energy losses on the leakage current of silicon drift detector prototypes for the LOFT satellite

被引：12

作者：

Del Monte, E. ^{[1
,2
]}

Rachevski, A. ^{[3
]}

Zampa, G. ^{[3
]}

Zampa, N. ^{[3
]}

Azzarello, P. ^{[4
]}

Bozzo, E. ^{[4
]}

Campana, R. ^{[5
,6
]}

Diebold, S. ^{[7
]}

Evangelista, Y. ^{[1
,2
]}

Perinati, E.

Feroci, M. ^{[1
,2
]}

Pohlh, M. ^{[8
]}

Vacchi, A. ^{[3
]}

机构：

[1] INAF Ist Astrofis & Planetol Spaziali, I-00133 Rome, Italy

[2] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy

[3] Ist Nazl Fis Nucl, Sez Trieste, I-34149 Trieste, Italy

[4] Univ Geneva, ISDC Data Ctr Astrophys, CH-1290 Versoix, Switzerland

[5] INAF Ist Astrofis Spaziale & Fis Cosm, I-40129 Bologna, Italy

[6] Ist Nazl Fis Nucl, Sez Bologna, I-40127 Bologna, Italy

[7] Univ Tubingen, IAAT Inst Astron & Astrophys Tubingen, D-72076 Tubingen, Germany

[8] Univ Geneva, DPNC Dept Phys Nucl & Corpusculaire, CH-1211 Geneva, Switzerland

来源：

JOURNAL OF INSTRUMENTATION | 2014年 / 9卷

关键词：

Radiation damage to detector materials (solid state); X-ray detectors and telescopes; RADIATION ENVIRONMENT; DAMAGE; CHAMBER;

D O I：

10.1088/1748-0221/9/07/P07016

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The silicon drift detectors are at the basis of the instrumentation aboard the Large Observatory For x-ray Timing (LOFT) satellite mission, which underwent a three year assessment phase within the "Cosmic Vision 2015-2025" long-term science plan of the European Space Agency. Silicon detectors are especially sensitive to the displacement damage, produced by the non ionising energy losses of charged and neutral particles, leading to an increase of the device leakage current and thus worsening the spectral resolution. During the LOFT assessment phase, we irradiated two silicon drift detectors with a proton beam at the Proton Irradiation Facility in the accelerator of the Paul Scherrer Institute and we measured the increase in leakage current. In this paper we report the results of the irradiation and we discuss the impact of the radiation damage on the LOFT scientific performance.

引用

页数：19

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