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- W4387360492 abstract "Dalian advanced light source (DALS) is a new project proposed by Dalian Institute of Chemical Physics (DICP), Chinese Academy of Science aiming to produce high energy electron beam of 1.3 GeV with a repetition rate up to 1 MHz. It is a continuous wave (CW) extreme ultraviolet (EUV) free electron laser (FEL) based on superconducting radio frequency (SRF) technology. The linac of DALS is composed of ten 1.3 GHz cryomodules and two 3.9 GHz cryomodules. Superconducting cavities in these cryomodules require cryogenic temperature to operate in their superconducting state to keep the low RF losses. The RF loss could be minimized with lower temperature according to BCS theory, but the efficiency of cryogenic system can be severely reduced by lower temperature. Therefore, there is an optimal temperature between the efficiency and the cooling power of the cryoplant, which results in the lowest cost and minimize other operating risks. This paper presents the brief introduction of DALS project, and then the operating cost and capital cost of cryogenic system are analyzed when the operating temperature changes. Some other factors such as microphonics in SRF system, helium properties, the impact of cold compressors, etc. are discussed. Considering the above influences, the recommended operating temperature of the DALS linac is proposed." @default.
- W4387360492 created "2023-10-06" @default.
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- W4387360492 date "2023-01-01" @default.
- W4387360492 modified "2023-10-16" @default.
- W4387360492 title "Analysis of the Optimal Operating Temperature of Dalian Advanced Light Source" @default.
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- W4387360492 doi "https://doi.org/10.1007/978-981-99-6128-3_8" @default.
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