On the Scaling of Multiple-Charge Transfer Cross Sections by Slow Multiply Charged Ions in Collisions with Various Molecules

关于慢速多电荷离子与各种分子碰撞时多电荷转移截面的缩放

• 批准号: 09640495
• 负责人: KUSAKABE Toshio
• 金额: $ 1.54万
• 依托单位: Kinki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09640495/
• 关键词: MULTIPLE-CHARGE TRANSFER; SLOW MULTIPLY CHARGED IONS; FUSION EDGE PLASMA; HYDROCARBON MOLECULES; GROWTH RATE METHOD; SCALING; COMPACT ELECTRON BEAM ION SOURCE; CROSS SECTION

1. Improvement of the compact electron bean ion source (micro-EBIS) :In order to obtain more highly ionized ions, some improvements have tried to the proto-type micro-EBIS. A strong and 1 cm long uniform magnetic field have been generated. But the transmission of the electron beam was lowered. Therefore re-examination such as electric potential distribution, etc., will be performed.2. Measurement of charge transfer cross sections by ィイD13ィエD1HeィイD12+ィエD1 ions in collisions with NィイD22ィエD2, OィイD22ィエD2, CO, COィイD22ィエD2, CHィイD24ィエD2, CィイD22ィエD2HィイD22ィエD2, CィイD22ィエD2HィイD26ィエD2, CィイD23ィエD2HィイD28ィエD2 molecules :We have measured the single- and double-charge transfer cross sections for the above collision systems at energies between 0.6 and 8 keV by means of the growth rate method. The present results are found to be consistent with the previous data measured by other group. The present double-charge transfer cross sections show a weak energy dependence and depend strongly on the number of el … More ectrons with the target molecules.3. Measurement of charge transfer cross sections in collisions of NeィイD12 - 5+ィエD1ions - CHィイD24ィエD2, CィイD22ィエD2HィイD22ィエD2, CィイD22ィエD2HィイD24ィエD2, CィイD22ィエD2HィイD26ィエD2, CィイD23ィエD2HィイD24ィエD2[Allene], CィイD23ィエD2HィイD24ィエD2[Propyne], CィイD23ィエD2HィイD26ィエD2, (CHィイD22ィエD2)ィイD23ィエD2, CィイD23ィエD2HィイD28ィエD2 and of ArィイD12 - 9+ィエD1ions - CHィイD24ィエD2, CィイD22ィエD2HィイD26, CィイD23ィエD2HィエD2ィイD28ィエD2 :We have measured the single- and multiple-charge transfer cross sections for the above collision systems at 2q keV in energy (q : charge number of projectiles). Seven times charge transfer cross sections have been derived for ArィイD19+ィエD1 - CィイD23ィエD2HィイD28ィエD2 collisions. The present single- and total-charge transfer cross sections lie near the previous scaling law. The q-dependence of the present multiple-charge transfer cross sections for Ar ions is very similar to those for previous data of Kr and Xe recoil ions. On the contrary, cross section values for Ne ions decrease with increasing the number of electron transfer k. Therefore, scaling rule for Ne ions and for Ar, Kr and Xe ions must be made individually. We will measure the charge transfer cross sections for Ar ions with other hydrocarbon molecules. We will examine the difference of multiple-charge transfer cross sections for Ne ions. The further improvement of the micro-EBIS will be progressed. Less

1.小型电子束离子源(Micro-EBIS)的改进：为了获得更高电离度的离子，对原型机进行了改进。产生了一个长1厘米的强均匀磁场。但电子束的透过率降低了。因此，将进行重新检查，如电位分布等。ィイD13ィエD1HeィイD12+ィエD1离子与NィイD22ィエD2，OィイD22ィエD2，CO，COィイD22ィエD2，CHィイD24ィエD2，CィイD22ィエD22ィイD2，CィイD22ィエD26ィエD2碰撞中电荷转移截面的测量CィイD23ィエD2HィイD28ィエD2分子：用生长速率法测量了上述碰撞体系在0.6keV和8keV能量范围内的单电荷和双电荷转移截面。目前的结果与其他小组测量的数据相一致。目前的双电荷转移截面表现出较弱的能量依赖性，并且强烈依赖于el…的数目。更多的电子与靶分子。NeィイD12-5+ィエD1离子-CHィイD24ィエD2，CィイD22ィエd2hィイD22ィエD2，CィイD22ィエd2hィイD24ィエD2，CィイD22ィエd2hィイD26ィエD2，CィイD23ィエd2hィイD24ィエD2[丙烯]，CィイD23ィエd2hィイD24ィエD2[丙炔]，CィイD23ィエd2hィイD26ィエD2碰撞中电荷转移截面的测量(CHィイD22ィエD2)ィイD23ィエD2，CィイD23ィエd2hィイD28ィエD2和Of ArィイD12-9+ィエD1ion-CHィイD24ィエD2，CィイD22ィエd2hィイD26，CィイD23ィエd2hィエD2ィイD28ィエD2：我们测量了上述碰撞体系在2qkeV能量下的单电荷和多电荷转移截面。ArィイD19+ィエD_1-CィイD_(23)ィエD_(2 H)ィイD_(28)ィエD_2碰撞的7次电荷转移截面。目前的单电荷转移截面和总电荷转移截面接近以前的标度定律。Ar离子的多重电荷转移截面与以前的Kr和Xe反冲离子的Q依赖关系非常相似。反之，Ne离子的截面值随着电子转移数k的增加而减小。因此，Ne离子和Ar、Kr、Xe离子的标度规则必须分别制定。我们将测量Ar离子与其他碳氢分子的电荷转移截面。我们将考察Ne离子多重电荷转移截面的差异。微型EBIS的进一步完善将会取得进展。较少

项目成果

Toshio Kusakabe: "Sensitivity Coefficients of Pirani Gauge for Various Atoms and Molecules"Atomic Collision Research in Japan. 24. 134-135 (1998)

Toshio Kusakabe：“皮拉尼规范对各种原子和分子的灵敏度系数”日本原子碰撞研究。

Toshio Kusakabe: "Single- and Double-Charge Transfer by HeィイD12+ィエD1 Ions in Collisions with N ィイD22ィエD2, OィイD22ィエD2, CO and COィイD22ィエD2 Molecules in keV Energy Region"XXI ICPEAC Abstracts of Contributed Papers. II. 624-624 (1999)

Toshio Kusakabe：“HeiD12+D1 离子在 keV 能量区域与 N D22D2、OD22D2、CO 和 COD22D2 分子碰撞中的单电荷和双电荷转移”XXI ICPEAC 投稿论文摘要 II。

日下部 俊男: "Single-and Double-Charge Transfer by He^<2+> Ions in Collisions with N_2, O_2, CO and CO_2 Molecules in keV Energy Region"XXI-lCPEAC, Abstracts of Contributed Papers. II. 624-624 (1999)

Toshio Kusakabe：“He^<2+> 离子在 keV 能量区域与 N_2、O_2、CO 和 CO_2 分子碰撞中的单电荷和双电荷转移”XXI-lCPEAC，投稿论文摘要 II。 1999）

日下部 俊男: "Sensitivity Coefficients of Pirani Gauge for Various Atoms and Molecules"Atomic Collision Research in Japan. 24. 134-135 (1998)

Toshio Kusakabe：“皮拉尼规范对各种原子和分子的灵敏度系数”日本原子碰撞研究 24. 134-135 (1998)。

日下部俊男: "Single-and Double-Charge Transfer by He^<2+> Ions in Collisions with N_2,O_2,CO and CO_2 Molecules in KeV Energy Region"XXI-ICPEAC,Abstracts of Contributed Papers. 624-624 (1999)

Toshio Kusakabe：“He^<2+> 离子在 KeV 能量区域与 N_2、O_2、CO 和 CO_2 分子碰撞中的单电荷和双电荷转移”XXI-ICPEAC，投稿论文摘要 624-624 (1999)。