Cluster formation and uranium photoionization in the afterglow of a pulsed hollow cathode lamp

Neri, José Wilson; Silveira, Carlos A.B.; Rodrigues, N. A. S.; Schwab, C.; Riva, Rudimar; Destro, Marcelo Geraldo; Mirage, A.

doi:10.1063/1.1148763

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…It has been shown in previous works that the measurement of electric current in the afterglow of a pulsed hollow-cathode lamp is an effective technique to monitor photoionization, avoiding the effects of the electric discharge and overcoming the abovementioned drawbacks [4,5].…”

Section: Introductionmentioning

confidence: 99%

Multi-step photoionization spectroscopy in uranium between 5900 and 6060 Å using a pulsed hollow-cathode lamp

Rodrigues¹,

Neri²,

Schwab³

et al. 2000

J. Phys. B: At. Mol. Opt. Phys.

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The observation of current in the afterglow of the discharge in a pulsed hollow-cathode lamp illuminated by tunable lasers, combined with optogalvanic techniques, provides a simple and reliable tool for multi-step photoionization spectroscopy studies. A three-photon photoionization spectroscopy study was performed in a uranium hollow-cathode lamp, using this combination of techniques. Single-, double-and triple-frequency photoionization paths were identified for uranium, in the range between 5900 and 6060 Å.

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Section: Introductionmentioning

confidence: 99%

Multi-step photoionization spectroscopy in uranium between 5900 and 6060 Å using a pulsed hollow-cathode lamp

Rodrigues¹,

Neri²,

Schwab³

et al. 2000

J. Phys. B: At. Mol. Opt. Phys.

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Development of a see-through hollow cathode discharge lamp for (Li/Ne) optogalvanic studies

Saini

Kumar

Sarangpani

et al. 2017

Review of Scientific Instruments

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Development of a demountable and see-through hollow cathode (HC) discharge lamp suitable for optogalvanic (OG) spectroscopy is described. The design of the HC lamp is simple, compact, and inexpensive. Lithium, investigated rarely by the OG method, is selected for cathode material as its isotopes are important for nuclear industry. The HC lamp is characterized electrically and optically for discharge oscillations free OG effect. Strong OG signals of lithium as well as neon (as buffer gas) are produced precisely upon copper vapor laser pumped tunable dye laser irradiation. The HC lamp is capable of generating a clean OG resonance spectrum in the available dye laser wavelength scanning range (627.5-676 nm) obtained with 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran dye. About 28 resonant OG lines are explicitly observed. Majority of them have been identified using j-l coupling scheme and assigned to the well-known neon transitions. One line that corresponds to wavelength near about 670.80 nm is assigned to lithium and resolved for its fine (S → P) transitions. These OG transitions allow 0.33 cm accuracy and can be used to supplement the OG transition data available from other sources to calibrate the wavelength of a scanning dye laser with precision at atomic levels.

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Cluster formation and uranium photoionization in the afterglow of a pulsed hollow cathode lamp

Cited by 2 publications

References 5 publications

Multi-step photoionization spectroscopy in uranium between 5900 and 6060 Å using a pulsed hollow-cathode lamp

Multi-step photoionization spectroscopy in uranium between 5900 and 6060 Å using a pulsed hollow-cathode lamp

Development of a see-through hollow cathode discharge lamp for (Li/Ne) optogalvanic studies

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