CVD diamond particle detectors used as on-line dosimeters in clinical radiotherapy

Bruzzi, M.; Bucciolini, M.; Casati, M.; DeAngelis, C.; Lagomarsino, S.; Løvik, I.; Onori, S.; Sciortino, S.

doi:10.1016/j.nima.2003.11.046

Cited by 19 publications

(8 citation statements)

References 3 publications

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“…The CVD diamond has been extensively studied as a nuclear radiation detector for applications both in high-energy physics experiments and in the nuclear industry domain. Only recently, some works have also shown the potential suitability of this system for medical dosimetry applications (1)(2)(3)(4)(5)(6) . Nevertheless, in the authors opinion, efforts have still to be expended in order to improve the properties of CVD diamonds for radiotherapy dosimetry applications, mainly regarding stability of response and rise time.…”

Section: Introductionmentioning

confidence: 99%

Improvements in CVD diamond properties for radiotherapy dosimetry

Angelis¹,

Bucciolini²,

Casati³

et al. 2006

Radiation Protection Dosimetry

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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.

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Section: Introductionmentioning

confidence: 99%

Improvements in CVD diamond properties for radiotherapy dosimetry

Angelis¹,

Bucciolini²,

Casati³

et al. 2006

Radiation Protection Dosimetry

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“…It is known that this procedure is a limiting factor which hinders the suitability of diamond detectors as dosimeters of choice in dosimetry, but once primed, the device becomes a suitable detector for dosimetric applications Guerrero et al, 2004;Bruzzi et al, 2004;Manfredotti, 2005). As the most investigated method to improve diamond detectors is through priming (Manfredotti, 2005), Buttar et al (2000) emphasized on the importance to understand and remove the priming effect of diamond detectors.…”

Section: 3mentioning

confidence: 99%

An evaluation of a novel synthetic diamond probe for dosimetric applications

Ade

Nam

2015

Radiation Physics and Chemistry

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“…A wide range of specific sensitivities have been reported for CVD diamond-based detectors, ranging from a few to over a thousand nC·Gy -1 ·mm -3 ; generally, the lower values (of up to ~100 nC·Gy -1 ·mm -3 ) appear to be reported for polycrystalline material grown in-house by the researchers [8,9,25,30,34], whereas the higher values were obtained using commercial CVD diamond, some of which was described as 'detector grade' [10,24,31,34,35]. Values between 18 and 164 nC·Gy -1 ·mm -3 have been reported for detectors based on HPHT diamonds [14].…”

Section: Primed Responsementioning

confidence: 99%

Investigation of the suitability of commercially available CVD diamond for megavoltage X-ray dosimetry

Lansley

Betzel

Baluti

et al. 2009

Nuclear Instruments and Methods in Physics Research Section A:

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Sandwich-type x-ray detectors were fabricated on commercially-available chemical vapour deposition diamond sourced from three manufacturers: Diamond Materials GmbH, Diamonex, and Element Six. These devices were investigated using Raman spectroscopy and 6 megavolt photons from a clinical linear accelerator. Parameters such as the level of the dark (leakage) and photo-currents, necessary priming dose, linearity of photocurrent with dose rate, and device sensitivity were considered. Device characteristics vary considerably. Devices fabricated using Diamonex material required high priming doses, and displayed high dark currents, low photocurrents (and hence low x-ray sensitivity), and non-linear dose-rate responses. In contrast, devices fabricated from Diamond Materials and Element Six material required lower priming doses, and displayed 'zero' dark currents (beyond the detection limit), higher photocurrents and linear dose-rate responses. In addition, the Element Six devices exhibited less variation in response when irradiated at different angles of incidence.

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CVD diamond particle detectors used as on-line dosimeters in clinical radiotherapy

Cited by 19 publications

References 3 publications

Improvements in CVD diamond properties for radiotherapy dosimetry

Improvements in CVD diamond properties for radiotherapy dosimetry

An evaluation of a novel synthetic diamond probe for dosimetric applications

Investigation of the suitability of commercially available CVD diamond for megavoltage X-ray dosimetry

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