A novel type of fast-neutron (energy En>1 MeV) counter is presented. It is made of a fissionable natural-uranium foil faced to an intrinsic single-crystal diamond that detects the neutron-induced fission fragments escaping the uranium sheet. The fast response of the diamond is a key feature for its use at pulsed spallation neutron sources for applications in beam monitoring and spectrum measurements with mm spatial resolution. This is an important issue to be addressed in the development of beam lines dedicated to the investigation of the so-called single-event effects in electronics, such as the ChipIr instrument designed for the ISIS spallation source in the UK. Tests of the device at the ROTAX beam line at ISIS have shown its potentiality for the proposed application. © Europhysics Letters Association, 2011.
Pietropaolo, A., Andreani, C., Rebai, M., Giacomelli, L., Gorini, G., Perelli Cippo, E., et al. (2011). Fission diamond detectors for fast-neutron ToF spectroscopy. EUROPHYSICS LETTERS, 94(6), 62001 [10.1209/0295-5075/94/62001].
Fission diamond detectors for fast-neutron ToF spectroscopy
REBAI, MARICA;GORINI, GIUSEPPE;
2011
Abstract
A novel type of fast-neutron (energy En>1 MeV) counter is presented. It is made of a fissionable natural-uranium foil faced to an intrinsic single-crystal diamond that detects the neutron-induced fission fragments escaping the uranium sheet. The fast response of the diamond is a key feature for its use at pulsed spallation neutron sources for applications in beam monitoring and spectrum measurements with mm spatial resolution. This is an important issue to be addressed in the development of beam lines dedicated to the investigation of the so-called single-event effects in electronics, such as the ChipIr instrument designed for the ISIS spallation source in the UK. Tests of the device at the ROTAX beam line at ISIS have shown its potentiality for the proposed application. © Europhysics Letters Association, 2011.
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