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Standards Development
The proposal aims at standardization in the field of 200 MeV to 400 MeV superconducting proton cyclotron for science research, industry, agriculture and health care use, for example the nuclear physics, quasi-monoenergetic neutron source produced by proton beams with wide range of proton energy, proton reference field for basic research of metrology, special nuclear material detection, proton irradiation for high reliability chips, materials analysis for aircraft industry, radioactive breeding, standard proton source for medical application and so on.
The proposal clauses are intended to be general requirements for 200 MeV to 400 MeV superconducting proton cyclotron as nuclear instrumentation. This document specifies the structure, performance, and technical requirements, test methods, inspection, identification, packing, transportation, storage and accompanying documents for such cyclotrons. This standard is intended for manufacturers of superconducting proton cyclotron within the energy range of 200 MeV to 400 MeV and responsible organizations where such cyclotrons are installed
Superconducting cyclotron is a kind of cyclotrons, which is mainly used for frontier science research and industrial applications, including life science, material research and nuclear research, with the energy range of 200 to 400 MeV. Therefore, it’s regarded as an indispensable comprehensive platform for advanced science and technology research. For example, the cyclotron at TRIUMF could provide proton beams with the energy range of 20 to 500 MeV for irradiation and its relevant effect research. Cyclotrons at PSI and iThemba LABS are used for the proton effect research in radiobiology. Superconducting cyclotrons at CIAE and MIT are used for research in space science, metrology, medicine, proton irradiation and special nuclear material detection. The cyclotron at HMI is used for solid state physics and material analysis for aircraft industry. Varian 250 MeV superconducting cyclotron, IBA 230 MeV cyclotron and Sumitomo 230 MeV superconducting cyclotron are designed and used for medical research and therapeutic application.
At present, international standards and project related to accelerators are listed below:
(1) IEC 60601-2-1:2020 Medical electrical equipment - Part 2-1: Particular requirements for the basic safety and essential performance of electron accelerators in the range 1 MeV to 50 MeV
(2) IEC 60601-2-64:2014 Medical electrical equipment - Part 2-64: Particular requirements for the basic safety and essential performance of light ion beam medical electrical equipment
(3) IEC 60601-2-68:2014 Medical electrical equipment - Part 2-68: Particular requirements for the basic safety and essential performance of X-ray-based image-guided radiotherapy equipment for use with electron accelerators, light ion beam therapy equipment and radionuclide beam therapy equipment
(4) IEC 60976:2007 Medical electrical equipment - Medical electron accelerators - Functional performance characteristics
(5) IEC 62976:2017 Industrial non-destructive testing equipment – Electron linear accelerator
(6) IEC 63175:2021 Fixed energy high intensity proton cyclotron within the energy range of 10 to less than 30 MeV
(7) ISO/CD 8939 Decommissioning of medical cyclotron (under development)
Above of these, IEC 60601series, IEC 60976 and IEC 62976 focus on electron linear accelerators, IEC 63175 focus on the low energy range cyclotrons, ISO standard focus on the decommissioning of medical cyclotron, none of them could be used for 200 MeV to 400 MeV superconducting proton cyclotron. Compared with linear accelerator, the cyclotron has much wider applications. However, the standard development of cyclotron still needs better promotion and much more attention.
With the progress of technology innovation, the technical specifications of different cyclotron suppliers maybe different, the test methods maybe different as well. In order to promote global technology exchange and standardization of this product, it is proposed to develop an international standard for this nuclear instrumentation
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