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커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
With the renewed interest in Sodium Fast Reactors and Advanced Small modular reactors such as Molted Salt ones, there is a need for high temperature (600 °C) neutron instrumentation. In this context, two types of miniatures fission chambers were identified for testing, a CFUE43 dedicated to high temperature conditions and a CF3, the reference fission chamber for in core measurement at CEA. An irradiation was performed at the Ohio State University Research Reactor, in a high temperature irradiation rig that might reach temperatures up to 1200 °C. The rig was installed against the reactor casing, allowing the experimental load to see a maximum neutron flux of about 10 12 n/cm 2 /s at full power. During three days, the fission chambers were irradiated at different temperature steps, from 20 °C up to 820 °C. Electronic pulse shape, leakage current and counting mode were monitored in parallel thanks to the libera MONACO 3 measurement system. CFUE 43 cannot be operated in counting or Campbell mode because of the low electromagnetic immunity of its mineral cable. CF3 fission chamber can be operated in counting mode above 600 °C even if its leakage current is high, of the order of 10 µA. Failure of CF3 with temperature was monitored. It can be explained with simple models.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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