Journal
APPLIED PHYSICS LETTERS
Volume 91, Issue 18, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2805221
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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. (C) 2007 American Institute of Physics.
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