Chen Maobai

China XD Group (China)

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Xiangshun Lu

Chinese Academy of Sciences

Deming Li

Jilin International Studies University

Senlin Xu

Shanghai Institute of Applied Physics

Weijian Zhou

Institute of Earth Environment

Yonghao Liu

Daqing Normal University

Guosheng Chen

Sun Yat-sen University

Ligong Shen

Shanghai Institute of Applied Physics

Yuexiang Zhang

Tianjin Central Hospital of Gynecology Obstetrics

Yingji Zhang

Beijing Institute of Technology

Huagui Yu

Xi'an Shiyou University

Cooperative Institutions

Chinese Academy of Sciences

Institute of Earth Environment

Shanghai Institute of Applied Physics

Xi'an Jiaotong University

Fudan University

Huazhong University of Science and Technology

University of Chinese Academy of Sciences

University of Arizona

State Key Laboratory of Loess and Quaternary Geology

China XD Group (China)

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The status of SMCAMS after recent upgrades

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (2007)

Yonghao Liu Shengli Wang Deming Li Guosheng Chen Wenhong Jia

Tandem accelerator

Accelerator mass spectrometry

10.1016/j.nimb.2007.01.302

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Study of 26Al measurement on the Shanghai Mini-cyclotron based AMS

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (2008)

Shengli Wang Yonghao Liu Deming Li Chen Maobai

Accelerator mass spectrometry

10.1016/j.nimb.2008.04.007

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Design of a new dual-purpose injection system based on AMS

Nuclear Techniques (2006)

Chen Maobai

It is well demanded to improve the precision of 14C dating and the sensitivity of long lived radioisotopes such as 10Be and 26Al in the AMS field. A set of new dual-purpose injection system based on HVEE model 4130 AMS facility is proposed by Xi’an AMS Center, which can operate in both simultaneous and sequential modes on one set of the system by using the Wien filter. It obviously simplifies the layout as compared with the existing dual-injector and dual high energy beam line system. The calculation shows that the new dual injection system will increase the species of radionuclides which can be analyzed. Keeping the high precision of model 4130 AMS for radiocarbon dating the new system can achieve the ultra-sensitivity measurements for the nuclides such as 10Be and 26Al.

Nuclide

Accelerator mass spectrometry

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(super 14) C analysis on the SINR mini-cyclotron AMS.

Radiocarbon (1996)

Chen Maobai Deming Li Senlin Xu Guosheng Chen Ligong Shen

Accelerator mass spectrometry

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Structure consideration and parameter determination in minicyclotron based super-sensitive accelerator mass spewctrometer

Nuclear Techniques (2001)

Chen Maobai

Consideration of the structure of the accelerator system, magnet system and beam transport system in SMCAMS and foundation of their parameter determination are introduced. The choice of the various working modes are described.

Accelerator mass spectrometry

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Progresses in analyzing 26 Al with SMCAMS

Nuclear Techniques (2007)

Shengli Wang Yonghao Liu Deming Li Chen Maobai

Shanghai Mini-Cyclotron based Accelerator Mass Spectrometer(SMCAMS) was especially designed for analyzing 14C. In order to accelerate and analyze 26Al the accelerated orbit and beam optics in injection system were calculated and harmonic number and acceleration turns was optimized. Preliminary experiment was carried out. In which a beam current of 1.15×10-9A for 27Al-and 0.038 CPS background for 26Al were measured. The limited sensitivity of 26Al/27Al is 5.25×10-12.

Accelerator mass spectrometry

Harmonic

Orbit (dynamics)

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Status of the SINR mini-cyclotron AMS facility

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (1997)

Chen Maobai Xiangshun Lu Guosheng Chen Senlin Xu Ligong Shen

Sample (material)

10.1016/s0168-583x(96)00739-2

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Injection system of the minicyclotron accelerator mass spectrometer

Nuclear Science and Techniques (1999)

Yonghao Liu Deming Li Chen Maobai Xiangshun Lu

Accelerator mass spectrometry

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Mini-cyclotron based Shanghai super-sensitive accelerator mass spectrometer

Nuclear Techniques (2001)

Chen Maobai

The development directions of AMS are discussed. The performance, specifications, merits and demerits of the SMCAMS facility, and comparison of real sample measurements between SMCAMS and others are introduced. The technical difficulties, technological innovations and innovating achievements in SMCAMS are summarized.

Accelerator mass spectrometry

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Breakthrough of the Mini-Cyclotron Mass Spectrometer for ¹⁴C Analysis

Radiocarbon (1995)

Chen Maobai Deming Li Senlin Xu Guosheng Chen Ligong Shen

We present results of current measurements on the super-sensitive mini-cyclotron as an accelerator mass spectrometer, successfully developed at Shanghai Institute of Nuclear Research (SINR). We describe new ideas and unique techniques adopted for increasing the transmission efficiency in the injection, acceleration and extraction region, for eliminating various backgrounds and for improving the precision of 14 C analysis, which have led to the breakthrough of our Shanghai Mini-Cyclotron Accelerator Mass Spectrometry project. We also discuss further development of the prototype facility.

Accelerator mass spectrometry

10.1017/s0033822200031192

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Citations (9)