China Advanced Research Reactor (CARR), Beijing.
A new high flux research reactor, the China Advanced Research Reactor (CARR), now is being built at China Institute of Atomic Energy (CIAE) to meet increasing demand of neutron scattering research in China.

CARR will be a 60 MW multiple purposes research reactor with unperturbed thermal neutron flux of 8x10exp14 n/sec.cm**2. A liquid hydrogen cold source at 20 K will be installed and two guide tubes will be put into the cold beam vault for transportation cold neutrons to the experimental hall. 5 of the spectrometers installed at current Heavy Water Research Reactor at CIAE will be upgraded and moved to CARR. 3 new spectrometers, a high resolution powder diffractomer, a residual stress neutron diffractometer and a horizontal scattering geometry polarized neutron reflectometer will be constructed and accommodated in the reactor hall and guide hall.

The object of CARR project is to establish a complete set of spectrometers used as the tool for neutron scattering in the fields of life science, material science, physics, chemistry and chemical engineering, mineral, environment science, industrial and engineering application with the aim to build the laboratory as a national neutron scattering key laboratory with an internationally advanced level, serving as a national neutron scattering research and training center as well as an international research center in Asia.


Neutron scattering leading group:
Group leader: President of CIAE - Prof. Zhao Zhixiang
Deputy group leader: Director of Department of Nuclear Physics Prof. Dr. Liu Weiping
Deputy group leader: Group leader of Neutron Scattering project Prof. Gou Cheng

Neutron scattering engineer group:
Group leader: Prof. Gou Cheng
Head of neutron scattering Project / deputy group leader: Prof. Dr. Chen Dongfeng
Deputy Head of neutron scattering Project / technical group leader: Dr. Liu Yuntao

Chinese Spallation Neutron Source CSNS, Guangdong, China
CAS, The Chinese Academy of Sciences, is to join hands with South China's Guangdong Province in making a proposal to jointly construct Chinese Spallation Neutron Source (CSNS) in Dongwan, a booming city in the province.

As a key mega-science facility during the 11th Five-Year Plan Period (2006-2010), the 1.2 billion yuan (or US$137 million) CSNS project was approved by the central government in 2005 and has been listed in the National Long- and Medium-term Plan for S&T Development.

The CSNS accelerator is the first large-scale, high-power accelerator project to be constructed in China according to WEI Jie, one of its chief designers and a physicist from IHEP and US Brookhaven National Laboratory. It is designed to accelerate proton beam pulses to 1.6 GeV kinetic energy at 25 Hz repetition rate, striking a solid metal target to produce spallation neutrons.

The future CSNS will be a world-class facility for a new generation of neutron sources, which is characterized with high-flux, broad-wavelength, and is safer and more efficient, says Prof. ZHANG Jie, a CAS Member and director-general of the CAS Bureau for Basic Sciences.


Science Academy of Sicence (14/02/2007)