Measurement of Photoionization Cross Sections of the Excited States of Titanium

被引：4

作者：

Yang, Jia-jun ^{[1
]}

Hu, Xing-yong ^{[1
]}

Wu, Hong-xia ^{[1
]}

Fan, Jian-mei ^{[1
]}

Cong, Ran ^{[1
]}

Cheng, Yi ^{[1
]}

Ji, Xue-han ^{[1
]}

Yao, Guan-xin ^{[1
]}

Zheng, Xian-feng ^{[1
]}

Cui, Zhi-feng ^{[1
]}

机构：

[1] Anhui Normal Univ, Inst Atom & Mol Phys, Wuhu 241000, Peoples R China

来源：

CHINESE JOURNAL OF CHEMICAL PHYSICS | 2009年 / 22卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Photoionization cross section; Excited state; Titanium; IONIZATION MASS-SPECTROMETRY; DATA SERVICE; DATA SHEETS; ATOMIC STATES; SPECTROSCOPY; LITHIUM; SODIUM; NI; SF; TI;

D O I：

10.1088/1674-0068/22/06/615-620

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Resonance-enhanced multiphoton ionization of the titanium atoms has been investigated in the 293-321 nm wavelength. We couple a laser-ablated metal target into a molecular beam to produce free atoms. Ions produced from photoionization of the neutral atoms are monitored by a home-built time-of-flight mass spectrometer. Photoionization cross sections of the excited states of Ti I were deduced from the dependence of the ion signal intensity on the laser intensity for photon energies close to the ionization threshold. The values obtained range from 0.2 Mb to 6.0 Mb. No significant isotope-dependence was found from measurements of the photoionization cross sections of Ti-46, Ti-47, and Ti-48.

引用

页码：615 / 620

页数：6

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