X-ray diamond detectors with energy resolution
- Department of Electronic Engineering and CNISM, University of Rome 'Roma Tre', Via della Vasca Navale, 84--00146 Rome (Italy)
Polycrystalline diamond detectors with energy resolving capability of the impinging beam were realized and tested by using a miniature pyroelectric x-ray pulse generator. Microstrip structures were defined by photolithography aimed to reduce parasitic capacitances and to perform characterization measurements in a sandwich configuration. Leakage currents as low as 20 pA at 500 V were measured on a 270 {mu}m thick device. Pulse height distributions were carried out around Ta L{alpha} (8.14 keV) and Cu K{alpha} (8.05 keV) characteristic lines of the source. Energy resolution at 200 V was found equal to 9% with an increase to 11% at 500 V. When the bias was increased to the maximum voltage the sample shows an Ohmic behavior.
- OSTI ID:
- 21013770
- Journal Information:
- Applied Physics Letters, Vol. 91, Issue 18; Other Information: DOI: 10.1063/1.2805221; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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