Synthetic single crystal diamond as a fission reactor neutron flux monitor

Marco Marinelli, E. Milani, G. Prestopino, A. Tucciarone, C. Verona, G. Verona-Rinati, M. Angelone, D. Lattanzi, M. Pillon, R. Rosa, E. Santoro

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Abstract

Thermal neutron flux monitors were fabricated using chemical vapor deposited single crystal diamond in a p -type/intrinsic/metal/ Li6 F layered structure. They were placed 80 cm above the core midplane of a 1 MW research fission reactor, where the maximum neutron flux is 2.2× 109 neutrons cm2 s. Good stability and reproducibility of the device response were observed over the whole reactor power range. A 150 000 countss count rate was measured at the maximum reactor power with no degradation of the detector signal. As the multiple pile-up process due to the slow readout electronics is accounted for, an excellent linearity of the diamond response is observed. © 2007 American Institute of Physics.
Original languageEnglish
Article number183509
Pages (from-to)-
JournalApplied Physics Letters
Volume90
Issue number18
DOIs
Publication statusPublished - 2007
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Marinelli, M., Milani, E., Prestopino, G., Tucciarone, A., Verona, C., Verona-Rinati, G., ... Santoro, E. (2007). Synthetic single crystal diamond as a fission reactor neutron flux monitor. Applied Physics Letters, 90(18), -. [183509]. https://doi.org/10.1063/1.2734921