Energy calibration measurements of MediPix2

被引：26

作者：

Fiederle, M. ^{[2
]}

Greiffenberg, D. ^{[2
]}

Idarraga, J. ^{[1
]}

Jakubek, J. ^{[3
,5
]}

Kral, V. ^{[3
,5
]}

Lebel, C. ^{[1
]}

Leroy, C. ^{[1
]}

Lord, G. ^{[1
]}

Pospisil, S. ^{[3
,5
]}

Sochor, V. ^{[4
]}

Suk, M.

机构：

[1] Univ Montreal, Montreal, PQ H3C 3J7, Canada

[2] Univ Freiburg, Freiburger Mat Forschungszentrum, D-79104 Freiburg, Germany

[3] Czech Tech Univ, Inst Expt & Appl Phys, CZ-12800 Prague, Albertov, Czech Republic

[4] IIR, Czech Metrol Inst Prague, CZ-10200 Prague 10, Czech Republic

[5] Charles Univ Prague, Fac Math & Phys, CZ-12800 Prague 8, Czech Republic

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2008年 / 591卷 / 01期

关键词：

MediPix; ATLAS; energy calibration;

D O I：

10.1016/j.nima.2008.03.042

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Real-time measurement of the composition and spectroscopic characteristics of the radiation field inside the ATLAS detector and cavern will be carried out with MediPix2 devices. In view of this application, a calibration of the low energy threshold was performed by illuminating the devices with low energy photons, using Am-241 sources and X-rays. A procedure was thereafter established for the calibration of all MediPix2 devices to be used in ATLAS. Using X-ray tubes with filters at the Czech Metrology Institute, photons of energies between 8 and 250 keV were obtained and the detection efficiency of the MediPix devices to these radiations was determined. An exponential decrease of the photon intensity as a function of detector depth was observed, illuminating the detector with the beam almost parallel to the surface. The properties of the decrease of intensity were used to determine the exact incident angle of the beam. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：75 / 79

页数：5

共 4 条

[1]

[Anonymous], 2000, CATALOGUE XRAY SPECT

[2]

CAMPBELL M, 2006, MPXUSBATLAS2006 CERN

[3] Data acquisition and processing software package for Medipix2 [J].

Holy, T ;

Jakubek, J ;

Pospisil, S ;

Uher, J ;

Vavrik, D ;

Vykydal, Z .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2006, 563 (01) :254-258

[4] USB interface for Medipix2 pixel device enabling energy and position-sensitive detection of heavy charged particles [J].

Vykydal, Z ;

Jakubek, J ;

Pospisil, S .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2006, 563 (01) :112-115

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