کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1871466 1530957 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Current status of the Modifications of the Former HERA Cryogenic Plant for the XFEL Facility
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Current status of the Modifications of the Former HERA Cryogenic Plant for the XFEL Facility
چکیده انگلیسی
The Hadron-Electron-Ring-Accelerator (HERA) at the German Electron Synchrotron (DESY) in Hamburg, Germany, was in operation between 1990 and 2007. The required cooling capacity for the superconducting magnets was provided by a cryogenic system consisting of three identical helium refrigeration plants. Due to the implementation of the X-ray free electron laser European XFEL, two of the existing HERA refrigeration plants have been adapted to the new heat load requirements of the XFEL-linac. A 2 K cooling loop of approximately 2.6 kW comprising a string of four cold compressors has been included into the existing refrigerator system. Efficient operation for 17.5 GeV beam load, for future up-grade options, and high turn down ability during partial load operation are key features of this modified cryoplant. A stepwise commissioning concept has been applied in order to compensate any changes in the overall XFEL project schedule. Another challenge was to revamp, install and commission the XFEL cryoplant under continuous operation of the third cryoplant, which is still providing refrigeration power forthe FLASH-linac and other consumers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Procedia - Volume 67, 2015, Pages 107-110
نویسندگان
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