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Title: X-ray diamond detectors with energy resolution

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 {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.

Authors:
; ; ;  [1]
  1. Department of Electronic Engineering and CNISM, University of Rome 'Roma Tre', Via della Vasca Navale, 84--00146 Rome (Italy)
Publication Date:
OSTI Identifier:
21013770
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 91; Journal Issue: 18; Other Information: DOI: 10.1063/1.2805221; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CAPACITANCE; DIAMONDS; ELECTRIC POTENTIAL; ENERGY RESOLUTION; KEV RANGE 01-10; LEAKAGE CURRENT; POLYCRYSTALS; PULSE GENERATORS; X RADIATION; X-RAY DETECTION

Citation Formats

Conte, G, Girolami, M, Salvatori, S, Ralchenko, V, and General Physics Institute, Russian Academy of Science, Vavilova Str. 38, 119991 Moscow. X-ray diamond detectors with energy resolution. United States: N. p., 2007. Web. doi:10.1063/1.2805221.
Conte, G, Girolami, M, Salvatori, S, Ralchenko, V, & General Physics Institute, Russian Academy of Science, Vavilova Str. 38, 119991 Moscow. X-ray diamond detectors with energy resolution. United States. https://doi.org/10.1063/1.2805221
Conte, G, Girolami, M, Salvatori, S, Ralchenko, V, and General Physics Institute, Russian Academy of Science, Vavilova Str. 38, 119991 Moscow. 2007. "X-ray diamond detectors with energy resolution". United States. https://doi.org/10.1063/1.2805221.
@article{osti_21013770,
title = {X-ray diamond detectors with energy resolution},
author = {Conte, G and Girolami, M and Salvatori, S and Ralchenko, V and General Physics Institute, Russian Academy of Science, Vavilova Str. 38, 119991 Moscow},
abstractNote = {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.},
doi = {10.1063/1.2805221},
url = {https://www.osti.gov/biblio/21013770}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 18,
volume = 91,
place = {United States},
year = {Mon Oct 29 00:00:00 EDT 2007},
month = {Mon Oct 29 00:00:00 EDT 2007}
}