Responsivity of Diamond X-ray Photodiodes Calibrated at NSLS

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Description

Single crystal, high purity synthetic diamond is used as photoabsorption and carrier transport medium in x-ray photodiodes. While the thermal / mechanical robustness and high x-ray transmission of diamond make such devices attractive for synchrotron instrumentation, state-of-the-art quality material and electrical interfaces further make such detectors feasible. The present work develops methodology for attaining calculable responsivity (photocurrent yield) over a wide range of photon energies (0.2 to 28 keV) to within 5% accuracy. These methods achieve linear response for up to 0.2 W absorbed x-ray power and response time as low as 1 ns. Details of contact formation / robustness ... continued below

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Keister,J.W.; Smedley, J.; Muller, E. M. & Bohon, J. September 27, 2009.

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Description

Single crystal, high purity synthetic diamond is used as photoabsorption and carrier transport medium in x-ray photodiodes. While the thermal / mechanical robustness and high x-ray transmission of diamond make such devices attractive for synchrotron instrumentation, state-of-the-art quality material and electrical interfaces further make such detectors feasible. The present work develops methodology for attaining calculable responsivity (photocurrent yield) over a wide range of photon energies (0.2 to 28 keV) to within 5% accuracy. These methods achieve linear response for up to 0.2 W absorbed x-ray power and response time as low as 1 ns. Details of contact formation / robustness and bias configuration are explored.

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  • The 10th International Conference on Synchrotron Radiation Instrumentation (SRI09); Melbourne, Victoria, Australia; 20090927 through 20091002

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  • Report No.: BNL--90507-2009-CP
  • Grant Number: DE-AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 970615
  • Archival Resource Key: ark:/67531/metadc929591

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  • September 27, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 8:41 p.m.

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Keister,J.W.; Smedley, J.; Muller, E. M. & Bohon, J. Responsivity of Diamond X-ray Photodiodes Calibrated at NSLS, article, September 27, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc929591/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.