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Extending Bragg peak of heavy ion beam and melanoma cell inactivation measurement

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Nuclear Science and Techniques 1998年第1期9卷 8-10页

作者： LiQiang WeiZeng－Quan 等 instituteofmodernphysics theChineseAcademyofSciencesLanzhou730000 instituteofmodernphysics theChines

ＥｘｔｅｎｄｉｎｇＢｒａｇｇｐｅａｋｏｆｈｅａｖｙｉｏｎｂｅａｍａｎｄｍｅｌａｎｏｍａｃｅｌｉｎａｃｔｉｖａｔｉｏｎｍｅａｓｕｒｅｍｅｎｔＬｉＱｉａｎｇ，ＷｅｉＺｅｎｇＱｕａｎ，ＬｉＷｅｎＪｉａｎ，ＺｈｏｕＧｕ... 详细信息

ＥｘｔｅｎｄｉｎｇＢｒａｇｇｐｅａｋｏｆｈｅａｖｙｉｏｎｂｅａｍａｎｄｍｅｌａｎｏｍａｃｅｌｉｎａｃｔｉｖａｔｉｏｎｍｅａｓｕｒｅｍｅｎｔＬｉＱｉａｎｇ，ＷｅｉＺｅｎｇＱｕａｎ，ＬｉＷｅｎＪｉａｎ，ＺｈｏｕＧｕａｎｇＭｉｎｇ，ＤａｎｇＢｉｎｇ...

关键词：重离子束黑素瘤细胞钝化作用

Measurement of ionization distributions at nanometre level in tissue-equivalent gas

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Nuclear Science and Techniques 1998年第2期9卷 92-94页

作者： Dang Bing-Rong Wei Zeng-Quan Li Wen-Jian Li Qiang and Zhang Shu-Min (Institute of Modern Phusics, the Chinese Academy of Sciences, Lanzhou 730000 ) instituteofmodernphysics TheChineseAcademyofSciencesLanzhou730000 instituteofmodernphysics TheChines

The developed track detector consists of two parts: a small drift region to obtain a good tracking and a relatively large multiplication region for getting an enough high gain at low pressure. All the track detector can be moved in the direction perpendicular to the beam by means of a micrometric screw. An automatic system allows the counting gas to flow continuously at constant pressure through the detector during the measurements. The system can measure ionization distributions at a few nanometer range.

关键词：放射生物学离子化粒子分布纳米级

Isotope distribution of iridium in the interaction of 47MeV/nucleon ^(12)C with ^(197)Au

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Nuclear Science and Techniques 2004年第6期15卷 344-347页

作者： YANGWei-Fan ZHAOZhi-Zheng XUYan-Bing YUANShuang-Gui MOUWan-Tong instituteofmodernphysics theChineseAcademyofSciencesLanzhou730000

Thick gold targets were bombarded with 47 MeV/nucleon C ions and the radioactive isotopes of iridium 12 and platinum were produced through the multi-nucleon transfer reactions. The production cross-sections of iridium isotopes in the reactions have been determined by a combination of radiochemical separation and off-line γ-ray spec- troscopy technique. The obtained Ir isotope distribution was compared with those obtained in other experiment as well as calculated by the statistical model.

关键词：铱同位素分布多核子变换反应中子丰度重离子

NEW GAMMA RAYS FROM DECAY OF ^(189)W

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Nuclear Science and Techniques 1995年第4期6卷 222-224页

作者：杨维凡赵之正李宗伟牟万统 instituteofmodernphysics TheChineseAcademyofSciencesLanzhou730000 instituteofmodernphysics TheChines

Radioactivities of 189W are produced through an 192Os(n, α)189W *** ray spectroscopy from chemically separated tungsten sources using HPGe detector has revealed the presence of 22 gamma rays assigned to the decay of ... 详细信息

关键词： Gamma-rays spectra Chemical separation Decay curve resolution