Jia-jun Yang, Xing-yong Hu, Hong-xia Wu, Jian-mei Fan, Ran Cong, Yi Cheng, Xue-han Ji, Guan-xin Yao, Xian-feng Zheng, Zhi-feng Cui. Measurement of Photoionization Cross Sections of the Excited States of Titanium[J]. Chinese Journal of Chemical Physics , 2009, 22(6): 615-620. doi: 10.1088/1674-0068/22/06/615-620
Citation: Jia-jun Yang, Xing-yong Hu, Hong-xia Wu, Jian-mei Fan, Ran Cong, Yi Cheng, Xue-han Ji, Guan-xin Yao, Xian-feng Zheng, Zhi-feng Cui. Measurement of Photoionization Cross Sections of the Excited States of Titanium[J]. Chinese Journal of Chemical Physics , 2009, 22(6): 615-620. doi: 10.1088/1674-0068/22/06/615-620

Measurement of Photoionization Cross Sections of the Excited States of Titanium

doi: 10.1088/1674-0068/22/06/615-620
Funds:  This work is supported by the National Natural Science Foundation of China (No.10674002 andNo.20973001) and the Science Foundation of Anhui Education Committee (No.ZD2007001-1).
  • Received Date: 2009-08-21
  • 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 46Ti, 47Ti, and 48Ti.
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Measurement of Photoionization Cross Sections of the Excited States of Titanium

doi: 10.1088/1674-0068/22/06/615-620
Funds:  This work is supported by the National Natural Science Foundation of China (No.10674002 andNo.20973001) and the Science Foundation of Anhui Education Committee (No.ZD2007001-1).

Abstract: 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 46Ti, 47Ti, and 48Ti.

Jia-jun Yang, Xing-yong Hu, Hong-xia Wu, Jian-mei Fan, Ran Cong, Yi Cheng, Xue-han Ji, Guan-xin Yao, Xian-feng Zheng, Zhi-feng Cui. Measurement of Photoionization Cross Sections of the Excited States of Titanium[J]. Chinese Journal of Chemical Physics , 2009, 22(6): 615-620. doi: 10.1088/1674-0068/22/06/615-620
Citation: Jia-jun Yang, Xing-yong Hu, Hong-xia Wu, Jian-mei Fan, Ran Cong, Yi Cheng, Xue-han Ji, Guan-xin Yao, Xian-feng Zheng, Zhi-feng Cui. Measurement of Photoionization Cross Sections of the Excited States of Titanium[J]. Chinese Journal of Chemical Physics , 2009, 22(6): 615-620. doi: 10.1088/1674-0068/22/06/615-620

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