The X-ray detection performance of polycrystalline CVD diamond with pulsed laser deposited carbon electrodes

Abdel‐Rahman, Mohamed A.E.; Lohstroh, A.; Jayawardena, Imalka; Henley, Simon J.

doi:10.1016/j.diamond.2011.12.017

Cited by 16 publications

(13 citation statements)

References 24 publications

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“…By combining these findings with the tunable large dimensions of solution‐grown organic single crystals (see Section ), the achieved net macroscopic effect is a strong increase of the output electrical signal (up to few microamperes) and a notable reduction of the operating bias voltage, down to a few volts (Figure b). The maximum achieved sensitivity of 175 nC Gy −1 is comparable to the one reported for inorganic semiconductor based dosimeters (e.g., 150 nC Gy −1 for silicon) and confirms the potential of OSSC‐based devices for practical applications …”

Section: Organic Semiconducting Single Crystals As Direct Ionizing Rasupporting

confidence: 79%

Ionizing Radiation Detectors Based on Solution‐Grown Organic Single Crystals

Fraboni

Fraleoni‐Morgera

Zaitseva

2015

Adv Funct Materials

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Organic single crystals (OSCs) have ideal qualities (well defi ned structure and\ud morphology, lack of grain boundaries, high purity, 3D long range order, good\ud electronic transport properties) for several technological applications, in particular\ud as key components for electronic devices. It is only recently that OSCs\ud have been considered as ionizing radiation detectors, and the latest developments\ud in this fi eld are here reported. In the fi rst section, various methods for\ud OSC growth are described, with emphasis on cost-effective, solution-based\ud approaches capable of delivering large volume, well performing crystals. The\ud second section is focused on the use of solution-grown OSCs as scintillators\ud (i.e., as high energy photon to UV–vis photon conversion), highlighting\ud the ability of cm-scale OSCs to effectively detect neutrons and to carry out\ud neutrons-gamma pulse-shape discrimination tasks. Finally, the third section\ud describes the use of semiconducting, solution-grown OSCs as effective\ud solid state direct detectors (i.e., directly converting high energy photons into\ud charge carriers), evidencing extremely promising performances in terms of\ud operability in environmental conditions (i.e., no need for encapsulation),\ud radiation hardness, linear response and low operating voltage

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Section: Organic Semiconducting Single Crystals As Direct Ionizing Rasupporting

confidence: 79%

Ionizing Radiation Detectors Based on Solution‐Grown Organic Single Crystals

Fraboni

Fraleoni‐Morgera

Zaitseva

2015

Adv Funct Materials

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“…(1) can therefore be expressed as (Laub et al, 1997;Bruzzi et al, 2000;Cirrone et al, 2006) (Planskoy, 1980;Ramkumar et al, 2001;Fidanzio et al, 2004;Laub et al, 1997Laub et al, , 1999Cirrone et al, 2006;Björk et al, 2000;Hoban et al, 1994;Marczewska et al, 2007;Górka et al, 2008;Lansley et al, 2009;Tranchant et al, 2008;Betzel et al, 2010;Schirru et al, 2010;Mohamed Abdel-Rahman et al, 2012) for both natural and synthetic diamonds, and a value of 1.20 has been stated for a silicon diode (Buttar et al, 2000).…”

Section: Dose Rate Dependencementioning

confidence: 96%

The influence of defect levels on the dose rate dependence of synthetic diamond detectors of various types on exposures to high-energy radiotherapy beams

Ade

Nam

2015

Radiation Physics and Chemistry

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“…For each electron and photon beam, Δ values of 0.95±0.02 and 0.96±0.02, respectively were determined for the diamond probe at 1.0 kV/cm illustrating that the Δ value of this particular diamond sensor is not dependent on beam energy and type. In comparison, Δ values between 0.49 and 1.16 have been reported in literature Fidanzio et al, 2004;Cirrone et., 2006;Marczewska et al, 2007;Górka et al, 2008;Lansley et al, 2009;Tranchant et al, 2008;Betzel et al, 2010;Schirru et al, 2010;Mohamed Abdel-Rahman et al, 2012) for other synthetic diamond detectors. The independence of Δ on beam energy and type as established with the diamond probe is advantageous in clinical dosimetry as Δ could be determined only once for any given beam energy and then used for other energies of clinical interest.…”

mentioning

confidence: 97%