Relative energy response of indigenously developed optically stimulated luminescence dosimeters Al2O3:C, LiMgPO4:B and LiCaAlF6:Eu,Y in therapeutic photon and electron beams

被引：4

作者：

Kunnar, Pradip ^{[1
,5
]}

Dhabekar, Bhushan ^{[2
,6
]}

Sharnna, Sunil Dutt ^{[2
,6
]}

Mishra, Devesh Ramdhar ^{[2
,6
]}

Rawat, Narender Singh ^{[2
]}

Kadam, Sonal ^{[2
]}

Chaudhari, Suresh ^{[3
]}

Chandola, Rakesh Mohan ^{[4
]}

Agrawal, Sadhana ^{[1
]}

机构：

[1] Natl Inst Technol, Raipur, Madhya Pradesh, India

[2] Bhabha Atom Res Ctr, Mumbai, Maharashtra, India

[3] Apollo Hosp, Navi Mumbai, India

[4] Pt JNM Med Coll & Hosp, Raipur, Madhya Pradesh, India

[5] Atom Energy Regulatory Board, Mumbai, Maharashtra, India

[6] Homi Bhabha Natl Inst, Mumbai, Maharashtra, India

来源：

LUMINESCENCE | 2020年 / 35卷 / 08期

关键词：

dosimetry; energy dependence; OSL dosimeters; radiotherapy; SENSITIVE OSL PHOSPHOR;

D O I：

10.1002/bio.3832

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The relative energy responses of three indigenously developed optically stimulated luminescence (OSL) phosphors in the disc form were studied in therapeutic photon and electron beams. Calibration in terms of absorbed dose was carried out in the dose range 5-500 cGy in Co-60 gamma rays, high energy X-rays, and electron beams used in radiotherapy. The combined standard uncertainty in the estimation of absorbed dose using these OSL discs (OSLDs) was 3.3%. Dose-response curves of these OSLDs in Co-60 gamma rays, 6 and 10 MV (flat and unflat), 15 MV and 6 and 15 MeV electron beams were found to be linear. Furthermore, these OSLDs exhibited a relative energy-dependent response for both photon and electron beams. The relative energy response correction factor for photon and electron beams were in the range 1.01-1.05 and 1.03-1.06, respectively.

引用

页码：1217 / 1222

页数：6

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