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CAS Scientists Received “Brightness Award”

Oct 20, 2009

Zhao Hongwei, vice director of Institute of Modern Physics, Chinese Academy of Sciences (IMP) was presented “Brightness Award” with another three physicists on the 13th International Conference on Ion Sources (ICIS) in Gatlinburg, Tennessee, USA recently for their outstanding contributions to Electron Cyclotron Rsonance (ECR) ion sources.

Together with Claude Lyneis (vice director of Nuclear Science Division at Lawrence Berkeley National Laboratory [LBNL], USA), Daniela Leitner (director of the 88-Inch Cyclotron Operations at LBNL) and Xie Zuqi, Visiting Research Fellow of IMP, Zhao received the prize consisting of a certificate and US $6,000.

Electron cyclotron resonance is a device producing a beam of charged particles (protons or heavier) suitable for transport to an experimental setup (e.g. atomic-, surface- or cluster physics), or to an application, such as accelerator injection, ion implantation, fusion driver, ion propulsion, etc. Critical element is formation of a beam, rather than simply plasma generation.

The research group led by Zhao put in radical sextupole iron a kind of solenoid wire that can produce axial magnetic mirror field thus invented an “Iron Chill” superconducting magnet structure and developed the first original Superconducting ECR Ion Source with Advanced design in Lanzhou (SECRAL).

The ion source has recently produced several high charge state ECR ion beams, such as 455 microamp Xe27+ and 152 microamp Xe30+, which makes it overtake the outcome of VENUS, the 28GHz superconducting ECR ion source of the Berkeley lab.

The superconducting ECR ion source was put into operation in the Heavy Ion Research Facility in Lanzhou (HIRFL) in 2007 and has finished beam distribution for more than 2000 hours. As the only third-generation high charge state ECR ion source in operation of beam distribution, the device has provided 78Kr beam current and helped researchers in IMP to identify and measure for the first time in the world the quality of new nuclides: 63Ge, 65As, 67Se.

The new achievement has drawn the attention of many notable labs, among which some has applied for cooperation, made copies or purchase the ECR ion source.

The Ion Source Prize, named the "Brightness Award", is intended to recognize and encourage innovative and significant recent achievements in the fields of ion source physics and technology. The prize is given every two years to only one achievement. And this is the fourth time the prize was awarded. The first three prizes were awarded to J. Peters (H-ion source expert in DESY, Hamburg, Germany), Evgeny Donets (“father”of electron beam ion source in JINR, Dubna, Russia) and Edward Beebe and Alexander Pikin (physicists at the U.S. Department of Energy’s Brookhaven National Laboratory).

Resume of Zhao Hongwei: http://english.imp.cas.cn/au/ds/200907/t20090720_24068_2.html

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