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加速器束流脉冲化及氢二次离子发射研究

丁富荣 史平 王尧 聂锐 沈定予 马宏骥

丁富荣, 史平, 王尧, 聂锐, 沈定予, 马宏骥. 加速器束流脉冲化及氢二次离子发射研究[J]. 原子核物理评论, 2004, 21(1): 34-37. doi: 10.11804/NuclPhysRev.21.01.034
引用本文: 丁富荣, 史平, 王尧, 聂锐, 沈定予, 马宏骥. 加速器束流脉冲化及氢二次离子发射研究[J]. 原子核物理评论, 2004, 21(1): 34-37. doi: 10.11804/NuclPhysRev.21.01.034
DING Fu-rong, SHI Ping, WANG Yao, NIE Rui, SHEN Ding-yu, MA Hong-ji. Application of HTS in Pulsed Ion Beam of Sccelerator and Study on Secondary Ion Emission of Hydrogen from Carbon Nanotubes under Bombardments of MeV Si and Si2 Clusters[J]. Nuclear Physics Review, 2004, 21(1): 34-37. doi: 10.11804/NuclPhysRev.21.01.034
Citation: DING Fu-rong, SHI Ping, WANG Yao, NIE Rui, SHEN Ding-yu, MA Hong-ji. Application of HTS in Pulsed Ion Beam of Sccelerator and Study on Secondary Ion Emission of Hydrogen from Carbon Nanotubes under Bombardments of MeV Si and Si2 Clusters[J]. Nuclear Physics Review, 2004, 21(1): 34-37. doi: 10.11804/NuclPhysRev.21.01.034

加速器束流脉冲化及氢二次离子发射研究

doi: 10.11804/NuclPhysRev.21.01.034

Application of HTS in Pulsed Ion Beam of Sccelerator and Study on Secondary Ion Emission of Hydrogen from Carbon Nanotubes under Bombardments of MeV Si and Si2 Clusters

  • 摘要: 详细介绍了快速高压晶体管开关在加速器束流脉冲化和用于二次离子测量的加速器飞行时间谱仪上的应用. 利用飞行时间法研究了碳纳米管在不同能量的Si和Si2团簇离子轰击下氢二次离子的发射. 实验结果表明, 在每个原子质量单位的速度为2.5×108 cm/s以上, Si和Si2离子引起的氢二次离子的发射主要受电子阻止过程控制; 在每个原子质量单位的速度为2.5×108 cm/s以下和Si2团簇离子轰击的情况下, 氢二次离子的发射产额明显增加, 团簇离子在靶表面的核能损增强效应起主要作用. The application of Fast High Voltage Transistor Switches (HTS) in pulsed ion beam and the time of flight(TOF ) setup is described. Secondary ion emissions from carbon nanotubes under bombardments of MeV Si and Si2 clusters are measured by using TOF. The measurements indicate that the yield of the secondary ion emissions of hydrogen increases with increasing energy of Si and it is attributed to the electronic processes. The yield of the secondary ions of hydrogen decreases with increasing energy of Si2 clusters and the enhancement of nuclear energy loss of cluster constituents at the surface of sample plays a more significant role in the secondary ion emission of hydrogen at the low energies.
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出版历程
  • 收稿日期:  1900-01-01
  • 修回日期:  1900-01-01
  • 刊出日期:  2004-03-20

加速器束流脉冲化及氢二次离子发射研究

doi: 10.11804/NuclPhysRev.21.01.034

摘要: 详细介绍了快速高压晶体管开关在加速器束流脉冲化和用于二次离子测量的加速器飞行时间谱仪上的应用. 利用飞行时间法研究了碳纳米管在不同能量的Si和Si2团簇离子轰击下氢二次离子的发射. 实验结果表明, 在每个原子质量单位的速度为2.5×108 cm/s以上, Si和Si2离子引起的氢二次离子的发射主要受电子阻止过程控制; 在每个原子质量单位的速度为2.5×108 cm/s以下和Si2团簇离子轰击的情况下, 氢二次离子的发射产额明显增加, 团簇离子在靶表面的核能损增强效应起主要作用. The application of Fast High Voltage Transistor Switches (HTS) in pulsed ion beam and the time of flight(TOF ) setup is described. Secondary ion emissions from carbon nanotubes under bombardments of MeV Si and Si2 clusters are measured by using TOF. The measurements indicate that the yield of the secondary ion emissions of hydrogen increases with increasing energy of Si and it is attributed to the electronic processes. The yield of the secondary ions of hydrogen decreases with increasing energy of Si2 clusters and the enhancement of nuclear energy loss of cluster constituents at the surface of sample plays a more significant role in the secondary ion emission of hydrogen at the low energies.

English Abstract

丁富荣, 史平, 王尧, 聂锐, 沈定予, 马宏骥. 加速器束流脉冲化及氢二次离子发射研究[J]. 原子核物理评论, 2004, 21(1): 34-37. doi: 10.11804/NuclPhysRev.21.01.034
引用本文: 丁富荣, 史平, 王尧, 聂锐, 沈定予, 马宏骥. 加速器束流脉冲化及氢二次离子发射研究[J]. 原子核物理评论, 2004, 21(1): 34-37. doi: 10.11804/NuclPhysRev.21.01.034
DING Fu-rong, SHI Ping, WANG Yao, NIE Rui, SHEN Ding-yu, MA Hong-ji. Application of HTS in Pulsed Ion Beam of Sccelerator and Study on Secondary Ion Emission of Hydrogen from Carbon Nanotubes under Bombardments of MeV Si and Si2 Clusters[J]. Nuclear Physics Review, 2004, 21(1): 34-37. doi: 10.11804/NuclPhysRev.21.01.034
Citation: DING Fu-rong, SHI Ping, WANG Yao, NIE Rui, SHEN Ding-yu, MA Hong-ji. Application of HTS in Pulsed Ion Beam of Sccelerator and Study on Secondary Ion Emission of Hydrogen from Carbon Nanotubes under Bombardments of MeV Si and Si2 Clusters[J]. Nuclear Physics Review, 2004, 21(1): 34-37. doi: 10.11804/NuclPhysRev.21.01.034

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