Diamond radiation sensors prepared by pulsed glow discharge CVD

Details Diamond radiation sensors prepared by pulsed glow discharge CVD Diamond radiation sensors prepared by pulsed glow discharge CVD

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.554..387b&link_type=abstract

In: Proceedings of the 5th International Conference on Space Optics (ICSO 2004), 30 March - 2 April 2004, Toulouse, France. Ed.:

Physics

Optics

Diamond Sensors, Particle Detection, Xuv Detection

Scientific paper

In this work we present the performances of polycrystalline diamond sensors grown with a chemical vapour deposition (CVD) proprietary method. The standard characterization on these samples have assessed their high crystalline quality. The collection response to fast (1 MeV) β particle are presented. The efficiency seems limited mainly by a high concentration of grain boundaries, since the material obtained results very pure, from ESR and Raman characterization. A high fluence of neutron can remove some traps, increasing the dynamic response and the stability of the samples used as UV detectors in the 300-200 nm range. The methods aimed to improve the present quality is also briefly discussed together with the capability of the CVD system to grow single-crystal specimens.

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