Générateur de vapeur d’uranium: la lampe à cathode creuse pulsée

J.-M. Gagné; M. Carleer; B. Leblanc; Y. Demers; B. Mongeau

doi:10.1364/AO.18.002107

Applied Optics
Vol. 18,
Issue 13,
pp. 2107-2111
(1979)
•https://doi.org/10.1364/AO.18.002107

Générateur de vapeur d’uranium: la lampe à cathode creuse pulsée

J.-M. Gagné, M. Carleer, B. Leblanc, Y. Demers, and B. Mongeau

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J.-M. Gagné, M. Carleer, B. Leblanc, Y. Demers, and B. Mongeau, "Générateur de vapeur d’uranium: la lampe à cathode creuse pulsée," Appl. Opt. 18, 2107-2111 (1979)

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Abstract

The production of uranium vapors has been studied in the ${{}^{5}L}_{6}^{0}$ ground state using a pulsed hollow cathode lamp. The evolution of the ${}^{238}U ({{}^{5}L}_{6}^{0})$ concentration with time has been studied with Xe and Ar as buffer gases. A density of 2.7 × 10¹³ atoms cm⁻³ was obtained with Xe as a buffer gas. In addition, those measurements, obtained from the absorption of a laser beam tuned to the 5758.143 Å ( ${{}^{5}L}_{6}^{0} - 17, 361 {{}^{7}L}_{6}$ ) transition, lowed the determination of the transition probability A = 2.1 × 10⁵ sec⁻¹ and of the branching ratio BR = 0.08 for this transition.

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t (msec)	k_w₀ (5915 Å) (cm⁻¹)	k_w₀ (5758 Å) (cm⁻¹)	$\frac{{k_{w}}_{0} (5915 Å)}{{k_{w}}_{0} (5758 Å)}$
5.27	1.13	0.060	18.8
5.80	1.06	0.056	18.9
6.34	1.01	0.056	18.0
6.87	0.97	0.051	19.0
7.41	0.92	0.051	18.0
7.94	0.89	0.049	18.2
8.48	0.86	0.044	19.5
9.01	0.83	0.044	18.9
9.55	0.80	0.044	18.2
10.08	0.77	0.044	17.5

Courant, mA (Tension, V)	Durée d’impulsion (μsec)	k_w₀ (5758 Å) (cm⁻¹) Valeur maximale	N (× 10¹³ atomes/cm³)	N′ (× 10¹³ atomes/impulsion)	R (× 10¹⁴ atomes/J)
750 (285)	100	0.19	0.4	0.5	2.3
	150	0.35	0.7	0.8	2.5
	200	0.51	1.0	1.2	2.8
	250	0.58	1.2	1.4	2.6
	300	0.61	1.2	1.4	2.2
	350	0.59	1.2	1.4	1.9
	400	0.57	1.1	1.3	1.5
1125 (325)	100	0.29	0.6	0.7	1.9
	150	0.63	1.3	1.5	2.7
	200	0.88	1.8	2.1	2.9
	250	1.02	2.0	2.3	2.5
	300	1.00	2.0	2.3	2.1
	350	0.96	1.9	2.2	1.7
	400	0.93	1.8	2.1	1.4
1500 (385)	100	0.41	0.8	0.9	1.6
	150	0.87	1.7	2.0	2.3
	200	1.21	2.4	2.8	2.4
	250	1.34	2.7	3.1	2.1
	300	1.27	2.5	2.9	1.7
	350	1.20	2.4	2.8	1.4
	400	1.22	2.4	2.8	1.2

t (msec)	k_w₀ (5915 Å) (cm⁻¹)	k_w₀ (5758 Å) (cm⁻¹)	$\frac{{k_{w}}_{0} (5915 Å)}{{k_{w}}_{0} (5758 Å)}$
5.27	1.13	0.060	18.8
5.80	1.06	0.056	18.9
6.34	1.01	0.056	18.0
6.87	0.97	0.051	19.0
7.41	0.92	0.051	18.0
7.94	0.89	0.049	18.2
8.48	0.86	0.044	19.5
9.01	0.83	0.044	18.9
9.55	0.80	0.044	18.2
10.08	0.77	0.044	17.5

Courant, mA (Tension, V)	Durée d’impulsion (μsec)	k_w₀ (5758 Å) (cm⁻¹) Valeur maximale	N (× 10¹³ atomes/cm³)	N′ (× 10¹³ atomes/impulsion)	R (× 10¹⁴ atomes/J)
750 (285)	100	0.19	0.4	0.5	2.3
	150	0.35	0.7	0.8	2.5
	200	0.51	1.0	1.2	2.8
	250	0.58	1.2	1.4	2.6
	300	0.61	1.2	1.4	2.2
	350	0.59	1.2	1.4	1.9
	400	0.57	1.1	1.3	1.5
1125 (325)	100	0.29	0.6	0.7	1.9
	150	0.63	1.3	1.5	2.7
	200	0.88	1.8	2.1	2.9
	250	1.02	2.0	2.3	2.5
	300	1.00	2.0	2.3	2.1
	350	0.96	1.9	2.2	1.7
	400	0.93	1.8	2.1	1.4
1500 (385)	100	0.41	0.8	0.9	1.6
	150	0.87	1.7	2.0	2.3
	200	1.21	2.4	2.8	2.4
	250	1.34	2.7	3.1	2.1
	300	1.27	2.5	2.9	1.7
	350	1.20	2.4	2.8	1.4
	400	1.22	2.4	2.8	1.2

Abstract

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Applied Optics