Scintillation properties of the YVO4:Eu3+ compound in powder form: its application to dosimetry in radiation fields produced by pulsed mega-voltage photon beams

被引：27

作者：

Martinezi, Nahuel ^{[1
]}

Teichmann, Tobias ^{[2
]}

Molina, Pablo ^{[1
]}

Sommer, Marian ^{[2
]}

Santiago, Martin ^{[1
]}

Henniger, Juergen ^{[2
]}

Caselli, Eduardo ^{[1
]}

机构：

[1] CIFICEN CONICET UNCPBA, Inst Fis Arroyo Seco, RA-7000 Tandil, Argentina

[2] Tech Univ Dresden, Inst Nucl & Particle Phys, Radiat Phys Grp, D-01062 Dresden, Germany

来源：

ZEITSCHRIFT FUR MEDIZINISCHE PHYSIK | 2015年 / 25卷 / 04期

关键词：

Scintillator detector; fiber-based dose rate measurements; radiotherapy; TEMPERATURE-DEPENDENCE; RADIOLUMINESCENCE; DETECTORS; ELECTRON;

D O I：

10.1016/j.zemedi.2015.04.001

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 investigation of scintillation properties of europium doped yttrium orthovanadate shows the suitability of this material for fiber-based dose rate measurements. All measurements were carried out with a 6 MV Varian linear accelerator The temperature dependence of the signal is lower than that of the plastic scintillators reported so far By measuring the afterglow of probes between Linac-pulses, the signal due to the stem effect can be successfully eliminated. Comparison of depth dose profiles in a water phantom for radiation field dimensions between 1 x 1 cm(2) and 10 x 10 cm(2) shows that the probes are suitable for small fields having dimensions up to 1 x I cm(2). The high light yield of probes having dimensions of 1 mm opens up the possibility for their use in spatially confined radiation fields, such as in intensity-modulated radiotherapy (IMRT) and volume-modulated radiation therapy (VMAT).

引用

页码：368 / 374

页数：7