A comparative study of the luminescence properties of LYSO:Ce, LSO:Ce, GSO:Ce and BGO single crystal scintillators for use in medical X=ray imaging

被引：52

作者：

Valais, I. ^{[1
,2
]}

Michail, C. ^{[2
]}

David, S. ^{[2
]}

Nomicos, C. D. ^{[3
]}

Panayiotakis, G. S. ^{[2
]}

Kandarakis, I. ^{[1
]}

机构：

[1] Technol Educ Inst Athens, Dept Med Instruments Technol, Athens 12210, Greece

[2] Univ Patras, Sch Med, Dept Med Phys, Patras 26500, Greece

[3] Technol Educ Inst Athens, Dept Elect, Athens 12210, Greece

来源：

PHYSICA MEDICA | 2008年 / 24卷 / 02期

关键词：

inorganic scintillators; medical X-ray imaging; luminescence efficiency; matching factor;

D O I：

10.1016/j.ejmp.2008.01.007

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

The present study is a comparative investigation of the luminescence properties of (Lu,Y)(2)SiO5:Ce (LYSO:Ce), LU2SiO5:Ce (LSO:Ce), Gd2SiO5:Ce (GSO:Ce) and (Bi4Ge3O12) BGO single crystal scintittators under medicat X-ray excitation. All scintillating crystals have dimensions of 10 x 10 X 10 mm 3 are non-hygroscopic exhibiting high radiation absorption efficiency in the energy range used in medical imaging applications. The comparative investigation was performed by determining the absolute luminescence efficiency (emitted light flux over incident X-ray exposure) in X-ray energies employed in general. X-ray imaging (40-140 kV) and in mammographic X-ray imaging (22-49 kV). Additionally, light emission spectra of crystals at various X-ray energies were measured, in order to determine the spectral. compatibility to optical photon detectors incorporated in medical. imaging systems and the overall. efficiency (effective efficiency) of a scintillator-optical detector combination. The tight emission performance of LYSO:Ce and LSO:Ce scintittators studied was found very high for X-ray imaging. (C) 2008 Published by Etsevier Ltd on behalf of Associazione Italiana di Fisica Medica.

引用

页码：122 / 125

页数：4

共 14 条

[1] YSO, LSO, GSO and LGSO. A study of energy resolution and nonproportionality. [J].

Balcerzyk, M ;

Moszynski, M ;

Kapusta, M ;

Wolski, D ;

Pawelke, J ;

Melcher, CL .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2000, 47 (04) :1319-1323

[2] Normalized glandular dose (DgN) coefficients for arbitrary x-ray spectra in mammography: Computer-fit values of Monte Carlo derived data [J].

Boone, JM .

MEDICAL PHYSICS, 2002, 29 (05) :869-875

[3] Seeing double: combined modalities in functional imaging [J].

Del Guerra, A ;

Damiani, C ;

Di Domenico, G ;

Gambaccini, M ;

Motta, A ;

Sabba, N ;

Zavattini, G .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 471 (1-2) :145-150

[4] NONLINEAR RESPONSE IN THE SCINTILLATION YIELD OF LU2SIO5 CE(3+) [J].

DORENBOS, P ;

DEHAAS, JTM ;

VANEIJK, CWE ;

MELCHER, CL ;

SCHWEITZER, JS .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1994, 41 (04) :735-737

[5]

HOLM T, 1964, RADIOLOGY, P898

[6]

Karp JS, 2003, J NUCL MED, V44, P1340

[7]

KOZMA P, 2003, NUCL INSTRUM METH A, V501, P132

[8]

*LYSO, ML4BF3 LYSO PHOT MAT

[9] A PROMISING NEW SCINTILLATOR - CERIUM-DOPED LUTETIUM OXYORTHOSILICATE [J].

MELCHER, CL ;

SCHWEITZER, JS .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1992, 314 (01) :212-214

[10] Properties of LYSO and recent LSO scintillators for phoswich PET detectors [J].

Pepin, CM ;

Bérard, P ;

Perrot, AL ;

Pépin, C ;

Houde, D ;

Lecomte, R ;

Melcher, CL ;

Dautet, H .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2004, 51 (03) :789-795

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