Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7111544 | Diamond and Related Materials | 2013 | 4 Pages |
Abstract
We created a radiation detection device from a plate of high quality polycrystalline CVD diamond, fabricating nano-graphite electrical contacts on both diamond surfaces, by front and back irradiation with a 193 nm ArF excimer laser. We measured the electrode electrical resistance and evaluated a graphite resistivity of about 10â 5 Ω â
 m. The ohmic nature of the contact graphite/diamond is established measuring the current-voltage characteristic that it is described by a linear behavior up to 90 V, by a Space Charge Limited (SCL) regime above 100 V and below 300 V, and by a Trap Filled Space Charge Limited (TFSCL) regime above 300 V. Finally, we investigated the device response in counting mode to a 60Co γ-rays source and to a 120 GeV proton beam proving its capability to work as a fast nuclear radiation detector.
Keywords
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Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
E. Alemanno, M. Martino, A.P. Caricato, M. Corrado, C. Pinto, S. Spagnolo, G. Chiodini, R. Perrino, G. Fiore,