A new detection method in studying penetration depth of low-energy heavy ions in botanic samples

编号 zgly0000251451

文献类型 期刊论文

文献题名 A new detection method in studying penetration depth of low-energy heavy ions in botanic samples

作者 LIUFeng  WANGYu-Gang 

作者单位 IonBeamGroup  InstituteofHeavyIonPhysics  PekingUniversity  Beijing 

母体文献 Nuclear Science and Techniques;核技术: 英文版 

年卷期 2001,12(3)

页码 169-176

年份 2001 

分类号 O571.6  Q947.9 

关键词 低能重离子  植物样品  贯穿深度  探测法 

文摘内容 A new detection method has been applied to study the penetration depth of low-energy heavy ions in botanic samples.Highly oriented pyrolytic graphite (HOPG) pieces were placed behind the target samples with certain thickness to receive energetic penetrated ions during the irradiation.After irradiation,statistic number density of protrusion-like damage induced by energetic penetrated ions can be obtained through scanning tunneling microscope(STM) observation on the surfaces of HOPG.The results of test indicate that the detection limit can be as low as 1.0×10^9 protrusions/cm^2.With the method,the penetration depth of at least 60μm can be detected in kidney bean slices irradiated by N^+ ions with dose of 0.3-3×10^17 ions/cm^2。