Improvements in CVD diamond properties for radiotherapy dosimetry

被引:17
作者
De Angelis, C.
Bucciolini, M.
Casati, M.
Lovik, I.
Bruzzi, M.
Lagomarsino, S.
Sciortino, S.
Onori, S.
机构
[1] Ist Super Sanita, I-00161 Rome, Italy
[2] Ist Nazl Fis Nucl, I-00161 Rome, Italy
[3] Clin Univ, Dipartimento Fisiopatol, I-50134 Florence, Italy
[4] Ist Nazl Fis Nucl, I-50134 Florence, Italy
[5] Univ Florence, Dipartimento Energet, I-50139 Florence, Italy
[6] Ist Nazl Fis Nucl, I-50139 Florence, Italy
关键词
D O I
10.1093/rpd/nci508
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The goal of this work was to compare the behaviour of a chemical vapour deposited (CVD) diamond sample, grown at the University of Florence using a local procedure, with that of a commercial CVD diamond. The comparison was performed exposing both systems to 25 MV photons and measuring the current response during irradiation. Properties of dosimetric interest such as stability of response, dose rate dependence and rise time were investigated. After a preliminary study, which evidenced better performances of the commercial device with respect to the local CVD diamond, the latter was irradiated with a high fluence of fast neutrons. As a result of the neutron treatment, the quality of the CVD home-made diamond has been improved to match with that of the commercial dosemeter.
引用
收藏
页码:38 / 42
页数:5
相关论文
共 11 条
[1]   Correlation between material properties and leakage currents in CVD diamond films deposited by DC plasma glow discharge [J].
Bacci, T ;
Borchi, E ;
Bruzzi, M ;
Santoro, M ;
Sciortino, S .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1997, 47 (01) :54-63
[2]   CVD diamond particle detectors used as on-line dosimeters in clinical radiotherapy [J].
Bruzzi, M ;
Bucciolini, M ;
Casati, M ;
DeAngelis, C ;
Lagomarsino, S ;
Lovik, I ;
Onori, S ;
Sciortino, S .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004, 518 (1-2) :421-422
[3]   Improvement of the dosimetric properties of chemical-vapor-deposited diamond films by neutron irradiation [J].
Bruzzi, M ;
Menichelli, D ;
Pini, S ;
Bucciolini, M ;
Mólnar, J ;
Fenyvesi, A .
APPLIED PHYSICS LETTERS, 2002, 81 (02) :298-300
[4]   Electrical properties and defect analysis of neutron irradiated undoped CVD diamond films [J].
Bruzzi, M ;
Miglio, S ;
Pirollo, S ;
Sciortino, S .
DIAMOND AND RELATED MATERIALS, 2001, 10 (3-7) :601-605
[5]   Characterisation of CVD diamond dosimeters in on-line configuration [J].
Bruzzi, M ;
Bucciolini, M ;
Cirrone, GAP ;
Cuttone, G ;
Mazzocchi, S ;
Pirollo, S ;
Sciortino, S .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 454 (01) :142-146
[6]  
Cirrone GAP, 2003, NUCL PHYS B-PROC SUP, V125, P179, DOI [10.1016/S0920-5632(03)90987-X, 10.1016/S0920-5632(03)02242-4]
[7]   An investigation of the operating characteristics of two PTW diamond detectors in photon and electron beams [J].
De Angelis, C ;
Onori, S ;
Pacilio, M ;
Cirrone, GAP ;
Cuttone, G ;
Raffaele, L ;
Bucciolini, M ;
Mazzocchi, S .
MEDICAL PHYSICS, 2002, 29 (02) :248-254
[8]  
Fowler J.F., 1966, RAD DOSIMETRY
[9]   CVD diamonds as thermoluminescent detectors for medical applications [J].
Marczewska, B ;
Olko, P ;
Nesladek, M ;
Waligórski, MPR ;
Kerremans, Y .
RADIATION PROTECTION DOSIMETRY, 2002, 101 (1-4) :485-488
[10]   High-bandgap semiconductor dosimeters for radiotherapy applications [J].
Pini, S ;
Bruzzi, M ;
Bucciolini, M ;
Borchi, E ;
Lagomarsino, S ;
Menichelli, D ;
Miglio, S ;
Nava, F ;
Sciortino, S .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 514 (1-3) :135-140