| Original Articles |
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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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| Cite this article: |
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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.
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| Keywords:
61.82.-d
34.50.Bw
87.50.-a
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Published: 01 March 2002
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| PACS: |
61.82.-d
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(Radiation effects on specific materials)
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34.50.Bw
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(Energy loss and stopping power)
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87.50.-a
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(Effects of electromagnetic and acoustic fields on biological systems)
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