A compact 7-cell Si-drift detector module for high-count rate X-ray spectroscopy

被引：9

作者：

Hansen, K. ^{[1
]}

Reckleben, C. ^{[1
]}

Diehl, I. ^{[1
]}

Klaer, H. ^{[1
]}

机构：

[1] DESY, D-22607 Hamburg, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2008年 / 589卷 / 02期

关键词：

silicon drift detector; X-ray spectroscopy; spectroscopic performance;

D O I：

10.1016/j.nima.2008.02.010

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new Si-drift detector module for fast X-ray spectroscopy experiments was developed and realized. The Peltier-cooled module comprises a sensor with 7 x 7-mm(2) active area, an integrated circuit for amplification, shaping and detection, storage, and derandomized readout of signal pulses in parallel, and amplifiers for line driving. The compactness and hexagonal shape of the module with a wrench size of 16 mm allow very short distances to the specimen and multi-module arrangements. The power dissipation is 186 mW. At a shaper peaking time of 190 ns and an integration time of 450 ns an electronic rms noise of similar to 11 electrons was achieved. When operated at 7 degrees C, FWHM line widths around 260 and 460 eV (Cu-K-alpha) were obtained at low rates and at sum-count rates of 1.7 MHz, respectively. The peak shift is below 1% for a broad range of count rates. At 1.7-MHz sum-count rate the throughput loss amounts to 30%. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：250 / 258

页数：9

共 15 条

[1]

ALBERTI R, 2006, P SNIC S 3 6 APR STA, DOI UNSP 0205

[2]

Diehl I, 2007, PROC EUR SOLID-STATE, P296

[3] An annular Si drift detector μPIXE system using AXSIA analysis [J].