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.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
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), -. . https://doi.org/10.1063/1.2734921