The fragmentation of 20Ne at 400 A MeV

中国物理C, 2012, 36(1): 37-42. doi: 10.1088/1674-1137/36/1/006

^1, , ^2, , ^3, , ^4, , ^5, , ^6, , ^7,

1.College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China

2.Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China

3.College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China ;Beijing Radiation Center, Beijing 100875, China

4.Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China

5.College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China

6.College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China

7.Fundamental Technology Center, National Institute of Radiological Sciences 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan

基金项目: Shanxi Provincial Foundation for Returned Overseas Chinese Scholars,China(2011-058) National Natural Science Foundation of China(11075100;10975019) Scientific Research Foundation for Returned Overseas Chinese Scholars,Ministry of Personnel(MOP2006138) Natural Science Foundation of Shanxi Province,China(2011011001-2)

The fragmentation of 20Ne at 400 A MeV

CHENG Jin-Xia ^1, , ZHANG Dong-Hai ^2, , YAN Shi-Wei ^3, , LI Jun-Sheng ^4, , WANG Li-Chun ^5, , LI Yan-Jin ^6, , N. Yasuda ^7,

1.College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China

2.Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China

3.College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China ;Beijing Radiation Center, Beijing 100875, China

4.Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China

5.College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China

6.College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China

7.Fundamental Technology Center, National Institute of Radiological Sciences 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan

Keywords： heavy ion

The total charge-changing cross sections and partial cross sections for the production of projectile fragments are measured in the interactions of 400 A MeV 20Ne with aluminum,carbon and polyethylene targets sandwiched with CR-39 plastic nuclear track detectors.The measured total charge-changing cross sections are compared with the predictions using the Bradt-Peters semi-empirical formula,and the NUCFRAG2 and PHITS models.It is shown that the measured experimental results are in good agreement with the theoretical model prediction and other experimental results,and it can be clearly seen that the partial cross sections for fragment production show obvious odd-even effects.

参考文献

[1]	Iancu G;Flesch F;Heinrich W .Nuclear fragmentation cross-sections of 400 A MeV Ar-36 and Ar-40 in collisions with light and heavy target nuclei[J].Radiation measurements,2005(5):525-533.
[2]	Zeitlin C;Fukumura A;Guetersloh SB;Heilbronn LH;Iwata Y;Miller J;Murakami T .Fragmentation cross sections of Si-28 at beam energies from 290 A to 1200 A MeV[J].Nuclear Physics, A: Journal Devoted to the Experimental Study of the Fundamental Constituents of Matter and Their Actions,2007(0):341-367.
[3]	Cecchini, S;Chiarusi, T;Giacomelli, G;Giorgini, M;Kumar, A;Mandrioli, G;Manzoor, S;Margiotta, AR;Medinaceli, E;Patrizii, L .Fragmentation cross sections of Fe26+, Si14+ and C6+ ions of 0.3-10 A GeV on polyethylene, CR39 and aluminum targets[J].Nuclear Physics. A,2008(3/4):206-213.

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