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 10−5 Ω ⋅ 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.

Autore Pugliese

• Spagnolo Stefania Antonia , Martino Maurizio , Caricato Anna Paola

Tutti gli autori

• Alemanno E. , Martino M. , Caricato A.P. , Corrado M. , Pinto C. , Spagnolo S.A. , Chiodini G. , Perrino R. , Fiore G.

Titolo volume/Rivista

DIAMOND AND RELATED MATERIALS

Anno di pubblicazione

2013

ISSN

0925-9635

ISBN

Non Disponibile

Numero di citazioni Wos

5

Ultimo Aggiornamento Citazioni

27/04/2018

Numero di citazioni Scopus

5

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile