Chin. Phys. Lett.  2002, Vol. 19 Issue (3): 378-380    DOI:
Original Articles |
Mechanism of Long-Range Penetration of Low-Energy Ions in Botanic Samples
LIU Feng;WANG Yu-Gang;XUE Jian-Ming;WANG Si-Xue;DU Guang-Hua;YAN Sha;ZHAO Wei-Jiang
Institute of Heavy Ion Physics, Peking University, Beijing 100871
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LIU Feng, WANG Yu-Gang, XUE Jian-Ming et al  2002 Chin. Phys. Lett. 19 378-380
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Abstract We present experimental evidence to reveal the mechanism of long-range penetration of low-energy ions in botanic samples. In the 100 keV Ar+ ion transmission measurement, the result confirmed that low-energy ions could penetrate at least 60μm thick kidney bean slices with the probability about 1.0 x 10-5. The energy spectrum of 1 MeV He+ ions penetrating botanic samples showed that there existed peak of count of ions with little energy loss. The probability of the low-energy ions penetrating the botanic sample is almost the same as that of the high-energy ions penetrating the same samples with little energy loss. The results indicate that there are some micro-regions with the mass thickness less than the projectile range of low-energy ions in the botanic samples and they result in the long-range penetration of low-energy ions in botanic samples.
Keywords: 61.82.-d      34.50.Bw      87.50.-a     
Published: 01 March 2002
PACS:  61.82.-d (Radiation effects on specific materials)  
  34.50.Bw (Energy loss and stopping power)  
  87.50.-a (Effects of electromagnetic and acoustic fields on biological systems)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I3/0378
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LIU Feng
WANG Yu-Gang
XUE Jian-Ming
WANG Si-Xue
DU Guang-Hua
YAN Sha
ZHAO Wei-Jiang
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