Heat loads measurements at the XFEL cold linac
نویسندگان
چکیده
Abstract The European X-Ray Free Electron Laser (EuXFEL) at DESY is in operation since the beginning of 2017. free electron laser based on a superconducting linear accelerator that delivers electrons to undulator section with beam energy up 17.5 GeV. consists 96 cryomodules; each 12 m long module an assembly 8 cavities and one magnet. This paper focusses measurement static dynamic heat loads cryomodules assembled linac. Heat are important parameter evaluate efficiency refrigerator system, quality cryomodule installation accelerating cavity performances, being proportional factor (Q 0 , ratio stored dissipated energy). describes first procedure measure load without different levels. results then summarized compared XFEL design values.
منابع مشابه
European Xfel-linac Two-phase He Ii Flow Simulations
The superconducting 1.3-GHz niobium cavities of the XFEL linear accelerator will be cooled in a bath of saturated liquid He II at a temperature of 2 K. The liquid He II supply of the 1.7-km long linac is subdivided in sections of about 150 m length. In these sections a two-phase flow of He II liquid and corresponding vapor occurs. A stable stratified smooth helium flow has to be maintained for ...
متن کاملCompressed air energy storage (CAES) with compressors distributed at heat loads to enable waste heat utilization
Large scale penetration of renewable energies such as wind and solar into the electric grid is complicated by their intermittency. Energy storage systems can mitigate these fluctuations by storing off-peak energy for use at peak-demand times. Compressed air energy storage (CAES) is one of the most promising storage technologies due to the large amount of energy that can be stored at an economic...
متن کاملSecond and Third Harmonic Measurements at the Linac Coherent Light Source
The Linac Coherent Light Source (LCLS) started user commissioning in October of 2009, producing Free Electron Laser (FEL) radiation between 800 eV and 8 keV [1]. The fundamental wavelength of the FEL dominates radiation in the beamlines, but the beam also produces nonnegligible levels of radiation at higher harmonics. The harmonics may be desirable as a source of harder X-rays, but may also con...
متن کاملHeat strain in cold.
In spite of increased environmental cold stress, heat strain is possible also in a cold environment. The body heat balance depends on three factors: environmental thermal conditions, metabolic heat production and thermal insulation of clothing and other protective garments. As physical exercise may increase metabolic heat production from rest values by ten times or even more, the required therm...
متن کاملTest Measurements with the Rex-isolde Linac Structures*
The Radioactive Beam Experiment (REX-ISOLDE) [1,2] is a pilot experiment at ISOLDE (CERN) testing the new concept of post acceleration of radioactive ion beams by using charge breeding of the ions in a high charge state ion source and the efficient acceleration of the highly charged ions in a short LINAC using modern ion accelerator structures. In order to prepare the ions for the experiments s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IOP Conference Series: Materials Science and Engineering
سال: 2022
ISSN: ['1757-8981', '1757-899X']
DOI: https://doi.org/10.1088/1757-899x/1240/1/012123