Synthetic single crystal diamond dosimeters for conformal radiation therapy application

被引：10

作者：

Almaviva, S. ^{[1
]}

Ciancaglioni, I. ^{[1
]}

Consorti, R. ^{[2
]}

De Notaristefani, F. ^{[3
]}

Manfredotti, C. ^{[4
,5
]}

Marinelli, Marco ^{[1
]}

Milani, E. ^{[1
]}

Petrucci, A. ^{[2
]}

Prestopino, G. ^{[1
]}

Verona, C. ^{[1
]}

Verona-Rinati, G. ^{[1
]}

机构：

[1] Univ Roma Tor Vergata, Ist Nazl Fis Nucl, Dipartimento Ingn Meccan, I-00133 Rome, Italy

[2] Osped San Filippo Neri, UO Fis Sanit, I-00135 Rome, Italy

[3] Univ Roma 3, Ist Nazl Fis Nucl, Dipartimento Ingn Elettron, I-00146 Rome, Italy

[4] Univ Turin, Expt Phys Dept, I-10125 Turin, Italy

[5] Univ Turin, Ctr Excellence NIS, I-10125 Turin, Italy

来源：

关键词：

CVD Diamond Detector; Single Crystal Diamond; Solid State Dosimetry; IMRT Dosimetry; RADIOTHERAPY; PHOTON;

D O I：

10.1016/j.diamond.2009.10.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A synthetic single crystal diamond based dosimeter in a p-type/intrinsic/nietal structure, operating in photovoltaic regime, is proposed for application in highly conformed radiotherapy dosimetry. The device was characterized by using 6 and 10 MV Bremsstrahlung X-ray beams and electron beams from 6 MeV up to 18 MeV, obtained by a CLINAC DHX Varian accelerator. All measurements were performed in a water phantom and commercial ionization chambers were used for calibration and comparison. Results showed a very good agreement of the diamond device response, as compared with the reference dosimeters, fast response times and high spatial resolution. One of such diamond dosimeters was then tested using a real Intensity Modulated Radiation Therapy (IMRT) prostate cancer treatment plan and its performance was compared with the ones from ionization chambers and a 2D diode array. The obtained results clearly assess the suitability of synthetic single crystal diamond for dose measurements in highly conformed radiotherapy and particularly in IMRT applications. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：217 / 220

页数：4

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