期刊
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
卷 65, 期 8, 页码 1583-1590出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNS.2018.2797540
关键词
Displacement damage; dosimetry; electrical characterization; future circular collider (FCC); neutron radiation effects; nonionizing energy loss (NIEL); proton radiation effects; radiation effects; radiation facilities; radiation monitoring
资金
- CERN Future Circular Collider, Special Technologies, Radiation Hardness Assurance, Work Package 11
- European Union's Horizon 2020 Research and Innovation Programme through the H2020 Project AIDA-2020 Transnational Access [654168]
The future circular collider (FCC) is foreseen as the next-generation similar to 100-km long synchrotron to be built in the Geneva area starting 2050. This machine is expected to reach an energy level of 100 TeV generating unprecedented radiation levels >100 times higher than in today's large hadron collider (LHC). Current radiation monitoring system, like the RADMONs employed in the LHC, will not be capable to function and withstand this harsh environment. The development of a new ultrahigh fluence and dose radiation sensor is a key element to allow irradiation tests of FCC equipment and, at a later stage, to monitor radiation levels in the FCC itself. In this paper, we present an innovative dosimetry solution based on thin layers of metals, which resistivity is shown to increase significantly due to the accumulated displacement damage. After describing the fabrication techniques used to manufacture these radiation-dependent resistors, we show and discuss the results of the irradiation experiments carried out with neutrons (up to 10(18) n/cm(2) at the JSI TRIGA reactor) and with protons (up to 5.2 x 10(16) p/cm(2) at CERN IRRAD Facility) to validate the proposed concept of possible ultrahigh fluence FCC dosimeter.
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