Fast Diamond Photoconductors

Pochet, T.; Brullot, B.; Galli, R.; Rubbelynck, C.

doi:10.1557/proc-302-281

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…8b). Furthermore, the signal height is compatible with the magnitude calculated from the photon flux and the charge collection efficiency measured with MIPs (see section 3). Although no precise absolute values of ǫ Q can be determined due to the uncertainties in the absolute photon flux, accurate measurements of relative changes of ǫ Q across the surface of the detector are obtained.…”

Section: Resultssupporting

confidence: 71%

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The charge collection properties of CVD diamond

Behnke

Hüntemeyer

et al. 1998

Nuclear Instruments and Methods in Physics Research Section A:

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The charge collection properties of CVD diamond have been investigated with ionising radiation. In this study two CVD diamond samples, prepared with electrical contacts have been used as solid state ionisation chambers. The diamonds have been studied with beta particles and 10 keV photons, providing a homogeneous ionisation density and with protons and alpha particles which are absorbed in a thin surface layer. For the latter case a strong decrease of the signal as function of time is observed, which is attributed to polarisation effects inside the diamond. Spatially resolved measurements with protons show a large variation of the charge collection efficiency, whereas for photons and minimum ionising particles the response is much more uniform and in the order of 18%. These results indicate that the applicability of CVD diamond as a position sensitive particle detector depends on the ionisation type and appears to be promising for homogeneous ionisation densities as provided by relativistic charged particles.

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Section: Resultssupporting

confidence: 71%

“…In recent years, diamond as a possible material for particle detectors has been the subject of considerable interest [1][2][3]. Significant progress in the techniques to produce synthetical diamond films of very high quality has been achieved by means of the Chemical Vapour Deposition method (CVD).…”

Section: Introductionmentioning

confidence: 99%

The charge collection properties of CVD diamond

Behnke

Hüntemeyer

et al. 1998

Nuclear Instruments and Methods in Physics Research Section A:

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CVD diamond films for radiation detection

Foulon

Pochet

Gheeraert

et al. 1994

IEEE Trans. Nucl. Sci.

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Diamond films produced by microwave plasma enhanced chemical vapor deposition (CVD) technique have been used to fabricate radiation detectors. The polycristalline diamond films have a measured resistivity of 10l2 R.cm, a carrier mobility of 280 cm2N.s and a carrier lifetime of about 530 ps.The detector response to laser pulses (A = 355, 532 and 1064 nm), X-ray flux (15 -50 keV) and alpha particles (241Am, 5.49 MeV) has been investigated. The response speed of the detector is in the 100 ps range. A sensitivity of about 3 x AN.(Gy/s) was measured under 50 keV X-ray flux. The detector current response to X-ray flux is almost linear. It is also shown that CVD diamond detectors can be used for alpha particle counting.

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X-ray Sensitivity Measurements On CVD Diamond Film Detectors

Foulon

Pochet²,

Gheeraert³

1993 IEEE Conference Record Nuclear Science Symposium and Medical Imaging Conference

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Fast Diamond Photoconductors

Cited by 4 publications

References 13 publications

The charge collection properties of CVD diamond

The charge collection properties of CVD diamond

CVD diamond films for radiation detection

X-ray Sensitivity Measurements On CVD Diamond Film Detectors

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