Mass Yield Distribution of Target Residues from the Interaction of Iron with 135-MeV/u <sup>12</sup>C Ions

Qin Zhi; Li Wenxin; Zhao Lili; Wen Wanxin; Luo Qingzheng; Sun Tongyu; S. Ambe; Y. Ohkubo; Y. Kobayashi; M. Iwamoto; E. Ambe

Chinese Physics C> 1995, Vol. 19> Issue(S3) : 223-231

Mass Yield Distribution of Target Residues from the Interaction of Iron with 135-MeV/u ¹²C Ions

Qin Zhi ¹ ,
Li Wenxin ^1,2 ,
Zhao Lili ¹ ,
Wen Wanxin ¹ ,
Luo Qingzheng ¹ ,
Sun Tongyu ,
S. Ambe ³ ,
Y. Ohkubo ³ ,
Y. Kobayashi ³ ,
M. Iwamoto ³ ,
E. Ambe ³

1 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, China;
2 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai, China;
3 Institute of Physical and Chemical Research, Wako, Saitama 351-01, Japan

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Production cross sections of target residues have been measured from the interaction of iron with 135-MeV/u ¹²C ions, using nuclear chemistry techniques. Mass yield distribution was deduced from the measured cross sections on the basis of a Gaussian charge distribution function. We found that yields at A <30 mass region in this reaction were much higher than those in the reaction of 46 MeV/u ¹²C+Cu, and those products were partial to neutron-excess. The experimental results were compared with calculations based on the statistical fusion fragmentation model and the modified sequential binary decay model, respectively. It seems to indicate that multifragmentation is one of the dominated reaction mechanisms responsible for production of the fragments with mass number of A <30 at this incident energy.
- ¹²C+Fe interaction ,
- mass yield distribution ,
- statistical fusion fragmentation model ,
- sequential binary decay model

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Qin Zhi, Li Wenxin, Zhao Lili, Wen Wanxin, Luo Qingzheng, Sun Tongyu, S. Ambe, Y. Ohkubo, Y. Kobayashi, M. Iwamoto and E. Ambe. Mass Yield Distribution of Target Residues from the Interaction of Iron with 135-MeV/u ¹²C Ions[J]. Chinese Physics C, 1995, 19(S3): 223-231.

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Received: 1994-05-21

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Supported by the National Natural Science Foundation of China

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沈阳化工大学材料科学与工程学院沈阳 110142

Mass Yield Distribution of Target Residues from the Interaction of Iron with 135-MeV/u ¹²C Ions

1 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, China;
2 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai, China;
3 Institute of Physical and Chemical Research, Wako, Saitama 351-01, Japan

Received Date: 1994-05-21

Fund Project: Supported by the National Natural Science Foundation of China

Abstract: Production cross sections of target residues have been measured from the interaction of iron with 135-MeV/u ¹²C ions, using nuclear chemistry techniques. Mass yield distribution was deduced from the measured cross sections on the basis of a Gaussian charge distribution function. We found that yields at A <30 mass region in this reaction were much higher than those in the reaction of 46 MeV/u ¹²C+Cu, and those products were partial to neutron-excess. The experimental results were compared with calculations based on the statistical fusion fragmentation model and the modified sequential binary decay model, respectively. It seems to indicate that multifragmentation is one of the dominated reaction mechanisms responsible for production of the fragments with mass number of A <30 at this incident energy.

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Mass Yield Distribution of Target Residues from the Interaction of Iron with 135-MeV/u ¹²C Ions

Mass Yield Distribution of Target Residues from the Interaction of Iron with 135-MeV/u ¹²C Ions