Proton recoil telescope based on diamond detectors for measurement of fusion neutrons

Barbara Caiffi, Mikhail Osipenko, Marco Ripani, Mario Pillon, Mauro Taiuti

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Diamonds are very promising candidates for the neutron diagnostics in harsh environments such as fusion reactor. In the first place this is because of their radiation hardness, exceeding that of Silicon by an order of magnitude. Also, in comparison to the standard on-line neutron diagnostics (fission chambers, silicon based detectors, scintillators), diamonds are less sensitive to 7 rays, which represent a huge background in fusion devices. Finally, their low leakage current at high temperature suppresses the detector intrinsic noise. In this talk a CVD diamond based detector has been proposed for the measurement of the 14 MeV neutrons from D-T fusion reaction. The detector was arranged in a proton recoil telescope configuration, featuring a plastic converter in front of the sensitive volume in order to induce the (n, p) reaction. The segmentation of the sensitive volume, achieved by using two crystals, allowed to perform measurements in coincidence, which suppressed the neutron elastic scattering background. A preliminary prototype was assembled and tested at FNG (Frascati Neutron Generator, ENEA), showing promising results regarding efficiency and energy resolution.
Original languageEnglish
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications, ANIMMA 2015 - Lisbon, Portugal
Duration: 1 Jan 2015 → …

Conference

Conference4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications, ANIMMA 2015
CountryPortugal
CityLisbon
Period1/1/15 → …

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All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging
  • Radiation
  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Caiffi, B., Osipenko, M., Ripani, M., Pillon, M., & Taiuti, M. (2015). Proton recoil telescope based on diamond detectors for measurement of fusion neutrons. Paper presented at 4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications, ANIMMA 2015, Lisbon, Portugal. https://doi.org/10.1109/ANIMMA.2015.7465495