NSRL light source is the first dedicated synchrotron radiation facility in China. Its central part is an electron storage ring with a nominal energy of 800 MeV and a stored beam current of 100~300 mA. The electron beam comes from a 200 MeV linac and is then, via a transport line, injected into the storage ring. The critical wavelength of the radiation from the ring bending magnets is 24 Å. There are 24 light ports distributed over the 12 bending magnets, while three more will be added in the future, each from a planned insertion device. In total, 50 or more beamlines can be installed around the ring and even more experimental stations be supported simultaneously.
The construction of NSRL facility began on November 20, 1984, and was completed in 1989. Its commissioning is ended in December, 1991, with a national review. And in 1993, the facility was open to service of scientists from home and abroad. The total budget up to then amounts to 62.4 million RMB. Most of the work, including designing, construction, installation and commissioning, was done by the research fellows and technicians of NSRL itself, and most of the major equipment made domestically. Compared with other similar light sources in the world, the performance of its stored beam is among the best. This achievement is to a great extent due to the assiduous and dedicating work of all the staff members of the laboratory under difficult conditions.
Owing to a series of its outstanding properties like massive intensity, high brightness, broad continuous spectrum, low emittance, polarization, pulsed time structure and contamination-free vacuum environments, synchrotron light has been widely used over a great variety of scientific and technological area such as physics, chemistry, life science, material science, surface science, metrology, medicine, microscopy, X-ray lithography, microfabrication of devices as well as many others. So far NSRL has equipped five experimental stations, ready for research on X-ray lithography, soft X-ray microscopy, photoelectron spectroscopy, time-resolved spectroscopy and photochemistry, respectively. In the near future, the insertion devices, such as wiggler and undulator, and more beam lines and experimental stations will be constructed.
The NSRL is open to and shared by all the scientists and researchers over China, while users from abroad are also welcome. NSRL was selected as one of the host centers of the Third World Academy of Sciences in last June. Up till now more than 100 user groups have registered and a lost of experiments have been carried out by the users from all over the country and abroad.
The predominant synchrotron radiation application research work in the NSRL will be developed in six areas as follows:
The electron beam from the 200 MeV linac can be also used for nuclear physics experiments, radiate chemistry experiments, etc. Interests in building user-owned beamlines or stations will be favorably considered.
1. X-ray Lithography Beamline and
Station
Main Technical Parameters
--- Special exposure shutter action time, 15 ms
--- Mirror box vacuum , < 5×10-8 Pa
--- Scanning plane mirror grazing angle, 20 mrad;
horizontal accepting angle, 5.5 mrad;
oscillating frequency 138 Hz (Max.)
--- Be window thickness, 7.6~25 mm
--- Wavelength, 4~20 Å
--- Exposure area, 30×30 mm2
--- Uniformity, > 90%
2. Time Resolved Spectroscopy Beamline
and Station
Main Technical Parameters
--- Spectral range, 35~800 nm
--- Spectral resolution, 0.2 nm
--- Irradiated size on the sample,
3 (horizontal)× 0.23 (vertical) mm2
--- Flux, 5×1010 photons/s
--- Vacuum, 1×10-7 Pa
3. Photochemistry Beamline and Station
Main Technical Parameters
--- Wavelength ranges, Gating with 2400 1/mm,
35~120 nm, 1200 1/mm, 100~250 nm, 600
1/mm, 140~600 nm
--- Resolution power, l/Dl > 500
--- Wavelength accuracy, ± 0.1 nm
--- Acceptance angle, 25 (h) × 5 (v) mrad
--- Spot size at sample, 3 (h) × 1 (v) mm
--- Flux at sample: GPLS, slit width of 230 mm,
1×1011 phs/s; HBLS, slit width of 60 mm,
6×1011 phs/s
--- Vacuum, 1×10-7 Pa.
4. Soft X-ray Microscopy Beamline and
Station
Main Technical Parameters
--- Condenser zoneplate (czp), czp23 czp32 czp45
--- Wavelength range(nm), 1.97~2.78 2.74~3.87
3.85~5.44
--- Distance between light source and czp(mm),
9890~10110
--- Distance between czp and pinhole(mm), 710~490
5. Photoelectron Spectroscopy Beamline
and Station
Main Technical Parameters
--- Photon energy range, 10~1000 eV
--- Resolution (DE/E), < 10-3
--- Angular acceptance: Horizontal, > 15 mrad;
Vertical, 2.5 mrad
--- Flux, 5×109 ~5×1010 photons/sec amp 0.1%
B.W.
--- Spot size, 3×1 mm2
Professors He, Duohui Accelerator physics & technology, FEL Hu, Defang Engineering themophysics Jin, Yuming Accelerator physics Li, Guihe Vacuum physics & technology Li, Yuxiong Health physics, Radiation application Liu, Naiquan Accelerator Physics, Synchrotron Radiation Source Liu, Zuping Accelerator physics Lu, Shengkuan Engineering management Pei, Yuanji Accelerator physics & technology Wang, Guicheng Electronics and control Wang, Jinpeng Engineering management Xu, Pengshou Condensed matter physics, Synchrotron radiation applications Zhang, Guodong Accelerator technology Zhang, Wu Accelerator physics and technology Zhang, Xinyi Condensed matter physics, Synchrotron radiation applications Zhang, Yunwu Physical organic chemistry, Synchrotron radiation applications Zhou, Yingxue Condensed matter physics, Synchrotron radiation applications Associate Professors Dong, Sai Accelerator physics and technology Feng,Lanlin Accelerator engineering and technology Fu, Luxin Electronics and control Fu, Shaojun Optical engineering and technology Hu, Shengsheng Project management and accelerator control Hu, Shouming Accelerator control Hu, Yiguan Microelectronics and microdublications Jia, Qika Accelerator physics and FEL Jiang, Daoman Accelerator vacuum physics and engineering Jiang, Dikui Accelerator vacuum physics and engineering Jin, Yongning Scientific and technological information Jin, Zhengfang Electronics Li, Chengxiang Condansed matter physics Li, Weimin Accelerator physics and technology Lu, Lijun Soft X-ray and vacuum ultraviolet optics and technology Luo, Xuefang Accelerator engineering and technology Mai, Ruqi Engineering management Pan, Guoqiang Condansed matter physics Shen, Xiaofeng Accelerator physics and technology Sheng, Liusi Physical organic chemistry and SR applications Shi, Junyan Condansed matter physics and SR applications Tian, Baoying Accelerator control & computer software Tian, Yangchao Micromachining and SR applications Wang, Junhua Accelerator beam diagnostic Wang, Wei Accelerator engineering and technology Wang, Xiangqi Accelerator physics & technology Wang, Yong Vacuum physics and technology Wu, Jinqi Accelerator control Xia, Andong Condansed matter physics Xie, Rongsheng Accelerator control Xu, Bin Vacuum technology and radiation electronics Xu, Chaoyin Design and engineer of beam lines Xu, Shihong Condansed matter physics and SR applications Xu, Weimin Instrument and control of synchrotron radiation beam lines Xu, Xilin Instrument and control of synchrotron radiation beam lines Yan, Heping Accelerator physics & technology Yao, Chenggui Accelerator physics & technology Yin, Shougen Civil engineering Zhang, Yunxiang Accelerator physics and RF Zhou, Huifeng Mechinery design and engineer
