Response overshoot: a challenge for the application of polymer gel dosimeters

被引：7

作者：

Abtahi, Seyed Mohammad Mandi ^{[1
]}

机构：

[1] Imam Khomeini Int Univ, Phys Dept, Imam Khomeini Blvd, Qazvin 3414896818, Iran

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2019年 / 321卷 / 03期

关键词：

Polymer gel dosimeter; PAGAT; Response overshoot; Dose distributions integrity; MRI; DOSE DISTRIBUTION; COMPUTED-TOMOGRAPHY; RADIATION; VERIFICATION; STABILITY; RESOLUTION; INTEGRITY; THERAPY; NMR;

D O I：

10.1007/s10967-019-06658-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this research response overshoots of the half irradiated PAGAT polymer gel dosimeter at variations post irradiation times were traced out. Results showed that 5 h after irradiation the measured dose by polymer gel dosimeter in boundary region are compatible with delivered dose. However, more elapsed time post irradiation caused misevaluation of dose. It was observed that response overshoot caused a maximum error of 28% in dose evaluation. It was concluded that more care is necessary when a high gradient dose distribution is evaluated by means of a polymer gel dosimeter.

引用

页码：885 / 893

页数：9

共 37 条

[21] Polymer gel dosimetry using x-ray computed tomography: a feasibility study [J].

Hilts, M ;

Audet, C ;

Duzenli, C ;

Jirasek, A .

PHYSICS IN MEDICINE AND BIOLOGY, 2000, 45 (09) :2559-2571

[22]

Ibbott GS, 2006, PREL P DOSGEL 2006 4

[23] Monte Carlo verification of gel dosimetry measurements for stereotactic radiotherapy [J].

Kairn, T. ;

Taylor, M. L. ;

Crowe, S. B. ;

Dunn, L. ;

Franich, R. D. ;

Kenny, J. ;

Knight, R. T. ;

Trapp, J. V. .

PHYSICS IN MEDICINE AND BIOLOGY, 2012, 57 (11) :3359-3369

[24] Reduced dose uncertainty in MRI-based polymer gel dosimetry using parallel RF transmission with multiple RF sources [J].

Kim, Sang-Young ;

Baek, Hyeon-Man ;

Lee, Jung-Hoon ;

Kim, Dae-Hyun ;

Jung, Jin-Young ;

Lee, Do-Wan ;

Min, Jung-Whan ;

Park, Ji-Yeon ;

Lee, Seu-Ran ;

Choe, Bo-Young .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2014, 302 (01) :533-541

[25] Investigation of the radiological properties of various phantoms for their application in low energy X-rays dosimetry [J].

Langaroodi, Roghayeh Kargar Shaker ;

Abtahi, Seyed Mohammad Mahdi ;

Akbari, Mohammad Esmaeil .

RADIATION PHYSICS AND CHEMISTRY, 2019, 157 :33-39

[26] The relationship between radiation-induced chemical processes and transverse relaxation times in polymer gel dosimeters [J].

Lepage, M ;

Whittaker, AK ;

Rintoul, L ;

Bäck, SÅJ ;

Baldock, C .

PHYSICS IN MEDICINE AND BIOLOGY, 2001, 46 (04) :1061-1074

[27] NMR RELAXATION ENHANCEMENT IN GELS POLYMERIZED AND CROSS-LINKED BY IONIZING-RADIATION - A NEW APPROACH TO 3D DOSIMETRY BY MRI [J].

MARYANSKI, MJ ;

GORE, JC ;

KENNAN, RP ;

SCHULZ, RJ .

MAGNETIC RESONANCE IMAGING, 1993, 11 (02) :253-258

[28] Ultrasound evaluation of polymer gel dosimeters [J].

Mather, ML ;

Whittaker, AK ;

Baldock, C .

PHYSICS IN MEDICINE AND BIOLOGY, 2002, 47 (09) :1449-1458

[29] Three-dimensional BANG™ gel dosimetry in conformal carbon ion radiotherapy [J].

Ramm, U ;

Weber, U ;

Bock, M ;

Krämer, M ;

Bankamp, A ;

Damrau, M ;

Thilmann, C ;

Bottcher, HD ;

Schad, LR ;

Kraft, G .

PHYSICS IN MEDICINE AND BIOLOGY, 2000, 45 (09) :N95-N102

[30] 137Cs source dose distribution using the Fricke Xylenol Gel dosimetry [J].

Sato, R. ;

De Almeida, A. ;

Moreira, M. V. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2009, 267 (05) :842-845

← 1 2 3 4 →