Measurement of photoionization cross sections of the excited states of titanium, cobalt, and nickel

Journal Article · Wed Jul 01 04:00:00 EDT 2009 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3160318· OSTI ID:21359267

Ran, Cong; Yi, Cheng; Jiajun, Yang; Jianmei, Fan; Guanxin, Yao; Xuehan, Ji; Xianfeng, Zheng; Zhifeng, Cui ^[1]

---

1. Institute of Atomic and Molecular Physics, Anhui Normal University, Wuhu, Anhui 241000 (China)

Resonance-enhanced multiphoton ionization (REMPI) of Ti, Co, and Ni atoms has been investigated in the 285-320 nm region. We couple a laser-ablated metal target into a molecular beam to produce 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, Co, and Ni 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 to 6.0 Mb. No significant isotope dependence was found from measurements of the photoionization cross sections of {sup 46}Ti, {sup 47}Ti, {sup 48}Ti, {sup 58}Ni, and {sup 60}Ni.

• OSTI ID: 21359267
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 1 Vol. 106; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABLATION
ATOM COLLISIONS
BEAMS
COBALT
COLLISIONS
CROSS SECTIONS
DYNAMIC MASS SPECTROMETERS
ELEMENTS
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXCITED STATES
INTERMEDIATE MASS NUCLEI
IONIZATION
ISOTOPES
MASS SPECTRA
MASS SPECTROMETERS
MEASURING INSTRUMENTS
METALS
MOLECULAR BEAMS
MULTI-PHOTON PROCESSES
NICKEL
NICKEL 58
NICKEL 60
NICKEL ISOTOPES
NUCLEI
PHOTOIONIZATION
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
SPECTRA
SPECTROMETERS
STABLE ISOTOPES
TIME-OF-FLIGHT MASS SPECTROMETERS
TIME-OF-FLIGHT METHOD
TIME-OF-FLIGHT SPECTROMETERS
TITANIUM
TITANIUM 46
TITANIUM 47
TITANIUM 48
TITANIUM ISOTOPES
TRANSITION ELEMENTS