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 m thick device. Pulse height distributions were carried out around Ta L 8.14 keV and Cu K 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.

Conte G, M. Girolami, S. Salvatori, & V. Ralchenko (2007). X-ray diamond detectors with energy resolution. APPLIED PHYSICS LETTERS, 91, 183515-183517 [10.1063/1.2805221].

X-ray diamond detectors with energy resolution

CONTE, Gennaro;
2007

Abstract

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 m thick device. Pulse height distributions were carried out around Ta L 8.14 keV and Cu K 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.
Conte G, M. Girolami, S. Salvatori, & V. Ralchenko (2007). X-ray diamond detectors with energy resolution. APPLIED PHYSICS LETTERS, 91, 183515-183517 [10.1063/1.2805221].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/154674
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