Efficient mass-selective three-photon ionization of zirconium atoms
Abstract
In an AVLIS process, [sup 91]Zr is selectively removed from natural zirconium by a three-step photoionization wherein Zr atoms are irradiated by a laser beam having a wavelength [lambda][sub 1], selectively raising [sup 91]Zr atoms to an odd-parity E[sub 1] energy level in the range of 16000--19000 cm[sup [minus]1], are irradiated by a laser beam having a wavelength [lambda][sub 2] to raise the atoms from an E[sub l] level to an even-parity E[sub 2] energy level in the range of 35000--37000 cm[sup [minus]1] and are irradiated by a laser beam having a wavelength [lambda][sub 3] to cause a resonant transition of atoms from an E[sub 2] level to an autoionizing level above 53506 cm[sup [minus]1][lambda][sub 3] wavelengths of 5607, 6511 or 5756 [angstrom] will excite a zirconium atom from an E[sub 2] energy state of 36344 cm[sup [minus]1] to an autoionizing level; a [lambda][sub 3] wavelength of 5666 [angstrom] will cause an autoionizing transition from an E[sub 2] level of 36068 cm[sup [minus]1]; and a [lambda][sub 3] wavelength of 5662 [angstrom] will cause an ionizing resonance of an atom at an E[sub 2] level of 35904 cm[sup [minus]1]. 4 figures.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 6893271
- Patent Number(s):
- 5376246
- Application Number:
- PPN: US 7-984170
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2 Dec 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 07 ISOTOPES AND RADIATION SOURCES; ZIRCONIUM 91; LASER ISOTOPE SEPARATION; AUTOIONIZATION; EXCITATION; LASER RADIATION; MULTI-PHOTON PROCESSES; ELECTROMAGNETIC RADIATION; ENERGY-LEVEL TRANSITIONS; EVEN-ODD NUCLEI; INTERMEDIATE MASS NUCLEI; IONIZATION; ISOTOPE SEPARATION; ISOTOPES; NUCLEI; RADIATIONS; SEPARATION PROCESSES; STABLE ISOTOPES; ZIRCONIUM ISOTOPES; 070100* - Physical Isotope Separation
Citation Formats
Page, R H. Efficient mass-selective three-photon ionization of zirconium atoms. United States: N. p., 1994.
Web.
Page, R H. Efficient mass-selective three-photon ionization of zirconium atoms. United States.
Page, R H. Tue .
"Efficient mass-selective three-photon ionization of zirconium atoms". United States.
@article{osti_6893271,
title = {Efficient mass-selective three-photon ionization of zirconium atoms},
author = {Page, R H},
abstractNote = {In an AVLIS process, [sup 91]Zr is selectively removed from natural zirconium by a three-step photoionization wherein Zr atoms are irradiated by a laser beam having a wavelength [lambda][sub 1], selectively raising [sup 91]Zr atoms to an odd-parity E[sub 1] energy level in the range of 16000--19000 cm[sup [minus]1], are irradiated by a laser beam having a wavelength [lambda][sub 2] to raise the atoms from an E[sub l] level to an even-parity E[sub 2] energy level in the range of 35000--37000 cm[sup [minus]1] and are irradiated by a laser beam having a wavelength [lambda][sub 3] to cause a resonant transition of atoms from an E[sub 2] level to an autoionizing level above 53506 cm[sup [minus]1][lambda][sub 3] wavelengths of 5607, 6511 or 5756 [angstrom] will excite a zirconium atom from an E[sub 2] energy state of 36344 cm[sup [minus]1] to an autoionizing level; a [lambda][sub 3] wavelength of 5666 [angstrom] will cause an autoionizing transition from an E[sub 2] level of 36068 cm[sup [minus]1]; and a [lambda][sub 3] wavelength of 5662 [angstrom] will cause an ionizing resonance of an atom at an E[sub 2] level of 35904 cm[sup [minus]1]. 4 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {12}
}