The first cryogenic permanent magnet undulator (CPMU) in China, developed by the Shanghai Light Source team, has recently achieved high flow strength testing on the Shanghai light source storage ring. When the storage ring was operated at 3.5 GeV/240 mA and the undulator was operating at a minimum magnetic gap of 6 mm, the experimenter used a 17 U beam line to perform spectral measurements and obtained clear 9th harmonic radiation with a corresponding magnetic field phase error of 3.5. °, reaching the advanced level of similar equipment in the world. This marks that the Shanghai Institute of Applied Physics of the Chinese Academy of Sciences has embarked on a new stage in the development of high-performance undulator technology. High-performance permanent magnets have a high remanence and a high coercive force at low temperatures. Using this feature, the permanent magnets in the vacuum undulator can work in the liquid nitrogen temperature region, which can increase the peak magnetic field of the undulator. 20%. After four years of hard work, the Shanghai Light Source team solved the key technical issues of high-performance neodymium-iron-boron permanent magnet preparation, permanent magnet cooling and temperature uniformity control, and measurement and shimming of the undulating magnetic field in cryogenic and vacuum environments. Based on the vacuum undulator technology, a low-temperature permanent magnet undulator based on neodymium-iron-boron permanent magnet with a cycle length of 20 mm, a cycle number of 80, and a minimum magnetic gap of 6 mm was successfully developed. The undulator was installed in the linear section of Shanghai Light Source Storage Ring C17 in August 2016. After temperature compensation, beam cleaning, and small beam flow tests, it cooperated closely with the 17U beam line and successfully completed the high-strength beam current test. At the 12.66 keV common photon energy, a photon flux of 40% higher than the current 17U ambient temperature vacuum undulator with a cycle length of 25 mm and a cycle number of 80 was measured. The crystal structure analysis experiment of the protein was performed using the undulator irradiation. At present, the Shanghai Light Source team is also conducting the development of low-temperature permanent magnet undulators and superconducting undulators based on neodymium-iron-boron magnets, with a view to further improving the performance indicators of undulators and serving the needs of beamline engineering and user experiments. This Basin Faucet is our answer for lovers of clean lines and strong, dynamic forms. This solid architectural style makes its presence known in your bathroom and kitchen, but not on the environment. Single Handle Basin Faucet,Bathroom Faucets,Double Basin Faucet Tap,Single Hole Bathroom Faucet HESHAN CAIZUN SANITRAYWARE CO.,LTD , https://www.nbcaizunsanitaryware.com