Beam-foil study of fluorine in the far uv

E.J. Knystautas; M. C. Buchet-Poulizac; J. P. Buchet; M. Druetta

doi:10.1364/JOSA.69.000474

Journal of the Optical Society of America
Vol. 69,
Issue 3,
pp. 474-478
(1979)
•https://doi.org/10.1364/JOSA.69.000474

Beam-foil study of fluorine in the far uv

E.J. Knystautas, M. C. Buchet-Poulizac, J. P. Buchet, and M. Druetta

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E.J. Knystautas, M. C. Buchet-Poulizac, J. P. Buchet, and M. Druetta, "Beam-foil study of fluorine in the far uv," J. Opt. Soc. Am. 69, 474-478 (1979)

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Abstract

The beam-foil spectrum of fluorine has been studied in the far uv at energies ranging from 1 to 12 MeV. Identifications have been suggested for 22 lines of F vi, vii, and viii in the wavelength range between 400 and 1200 Å including three F vii transitions from doubly excited states. Mean lives of 29 levels in F ii to F viii were measured, and these are compared with other measurements and with theoretical values where available.

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λ(Å) ± 0.3Å	Ion	Transition
432.8	F vi	2p3p ¹P–2p4d D⁰
		2p3p ³D–2p4d ³P⁰
		2p3s ¹P⁰–2p4p ¹P
449.6	F vi	2p3p ³S–2p4d ³P⁰
460.5	F vi	2p3p ³P–2p4d ³P⁰
		2p3p ¹P–2p4s ¹P⁰
548.2	F vi	2p3d ³P⁰–2p4p ³S
632.5	F viii	4–5
672.2	F vii	5–9
698.4	F vi	2s3p ³P⁰–2p3p ³D
	F viii	5s ³S–7p ³P⁰
726.8	F vi	2s3p ¹P⁰–2p3p ¹D
	F viii	5–7
736.5	F vii	4s ²S–5p ²P⁰
763.3	F vii	5–8
797.7	F vii	4p ²P⁰–5d ²D
800.5	F vi	2s3p ³P⁰–2p3p ³P
807.3	F vi	2s3s ³S–2p3s ³P⁰
813. ± 2.	F vii**	1s2s2p ⁴P⁰–1s2p^{2 4}P
820.0	F vi	2s3d ³D–2p3d ³D⁰
833.9	F vi	2s3s ¹S–2p3s ¹P⁰
839.6	F vii	4d ²D–5p²P⁰
	F vi	2s3p ³P⁰–2p3p ³S
855.4	F vii	4p ²P⁰–5s²S
894.7	F viii	6s ³S–9p ³P⁰ ?
948.9	F vii	5–7
1124	F vii**	1s2s3d ⁴D–1s2p3d ⁴P⁰ ?
1161	F vii**	1s2s3d ⁴D–1s2p3d ⁴D⁰ ?

Ion	λ (Å)	Transition	Upper level lifetime (ns)	Other work (ns)
F ii	607	2s²2p^{4 3}P–2s2p^{5 3}P⁰	0.32 ± 0.03	0.29 ± 0.05,^a 0.36 ± 0.02,^b 0.358 ± 0.024^f
F iii	568	2s²2p^{3 2}D⁰–2s2p^{4 2}D	0.33 ± 0.03	0.304 ± 0.015^a
	630	2s²2p^{3 2}P⁰–2s2p^{4 2}D	0.34 ± 0.03	0.296 ± 0.015^a
	657	2s²2p^{3 4}S⁰–2s2p^{4 4}P	0.92 ± 0.09	0.74 ± 0.04^a
	743	2s2p^{4 2}P–2p^{5 2}P⁰	0.25 ± 0.03
F iv	490.6	2s²2p^{2 1}S–2s2p^{3 1}P⁰	0.072 ± 0.01
	491	2s²2p^{2 1}D–2s2p^{3 1}D⁰	0.155 ± 0.015	0.16 ± 0.02^a
	572	2s²2p^{2 3}P–2s2p^{3 3}P⁰	0.43 ± 0.03	0.44 ± 0.020^a, 0.57 ± 0.05,^b 0.29 ± 0.015
	679	2s²2p^{2 3}P–2s2p^{3 3}D⁰	1.21 ± 0.07	1.27 ± 0.06^a
	722	2s2p^{3 1}D⁰–2p^{4 1}D	0.25 ± 0.03
F v	163.5	2s2p^{2 4}P–2s2p3d ⁴D⁰	0.016 ± 0.003
	186.8	2s2p^{2 4}P–2s2p3s ⁴P⁰	0.054 ± 0.004
	466	2s²2p ²P⁰–2s2p^{2 2}P	0.117 ± 0.015
	508	2s²2p ²P⁰–2s2p^{2 2}S	0.215 ± 0.02
	514	2s2p^{2 2}D–2p^{3 2}P⁰	0.148 ± 0.01
	526	2s2p^{2 4}P–2p^{3 4}S⁰	0.118 ± 0.01
	648	2s2p^{2 2}D–2p^{3 2}D⁰	0.410 ± 0.03
	654	2s²2p ²P⁰–2s2p^{2 2}D	1.25 ± 0.10	1.21 ± 0.12^c
	694	2s²3d ²D–2s²4f ²F⁰	0.10 ± 0.01
	713	2s2p(³P⁰)3d ⁴P^o–2s2p(³P⁰)4f ⁴D	0.135 ± 0.02
	757	2s2p^{2 2}P–2p^{3 2}P⁰	0.150 ± 0.01	0.214 ± 0.004^c
F vi	153.8	2s2p ³P⁰–2s3s ³S	0.031 ± 0.004	0.0312 ± 0.0006^d
	479	2s3d ³D–2s4f ³F⁰	0.07 ± 0.01
	535	2s^{2 1}S–2s2p ¹P⁰	0.31 ± 0.04	0.37 ± 0.02^c
	645	2s2p ³P⁰–2p^{2 3}P	0.32 ± 0.04
	651	2s2p ¹P⁰–2p^{2 1}S	0.21 ± 0.02	0.23 ± 0.02^c
	1139	2s2p ¹P⁰–2p^{2 1}D	2.5 ± 0.1	2.35 ± 0.07,^c 2.3 ± 0.1^e
F vii	826	4f ²F⁰–5g ²G	0.25 ± 0.04
F viii	1434	$2 s {³ S}_{1} - 2 p {³ P}_{1}^{0}$	0.41 ± 0.06^g

λ (Å)	Ion	Transition	Oscillator strength
λ (Å)	Ion	Transition	Measured	Theoretical
607	F ii	2s²2p^{4 3}P–2s2p^{5 3}P⁰	0.173, 0.19,^a 0.15^b	0.140,^c 0.150,^d 0.189^e
568	F iii	2s²2p^{3 2}D⁰–2s2p^{4 2}D	0.131, 0.14^a	0.131,^d 0.148,^e 0.142^f
630	F iii	2s²2p^{3 2}P⁰–2s2p^{4 2}D	0.036, 0.039^a	0.036,^b 0.038^f
657	F iii	2s²2p^{3 4}S⁰–2s2p^{4 4}P	0.211, 0.262^a	0.22,^g 0.208,^d 0.248^e
490.6^k	F iv	2s²2p^{2 1}S–2s2p^{3 1}P⁰	0.270	0.27,^g 0.260,^d 0.262,^h 0.266ⁱ
491^k	F iv	2s²2p^{2 1}D–2s2p^{3 1}D⁰	0.233, 0.23^a	0.28,^g 0.210^d 0.270,^h 0.259ⁱ
572	F iv	2s²2p^{2 3}P–2s2p^{3 3}P⁰	0.114, 0.111,^a 0.168,^j 0.086^b	0.14,^g 0.108,^d 0.116,^h 0.116^d
679	F iv	2s²2p^{2 3}P–2s2p^{3 3}D⁰	0.094, 0.090^a	0.10,^g 0.090,^d 0.093,^h 0.100^d
466	F v	2s²2p ²P⁰–2s2p^{2 2}P	0.278	0.291,^e 0.29,^g 0.282^d
508	F v	2s²2p ²P⁰–2s2p^{2 2}S	0.060	0.058,^l 0.057,^g 0.055^d
526	F v	2s2p^{2 4}P–2p^{3 4}S⁰	0.117	0.109,^l 0.11,^g 0.l07^e
648	F v	2s2p^{2 2}D–2p^{3 2}D⁰	0.128^m	0.120,^l 0.120,^g 0.126^e
654	F v	2s²2p ²P⁰–2s2p^{2 2}D	0.086, 0.089^j	0.102,^l 0.087,^g 0.096^d
153.8	F vi	2s2p ³P⁰–2s3s ³S	0.038, 0.0379ⁿ	0.039^o
535	F vi	2s^{2 1}S–2s2p ¹P⁰	0.415, 0.35^j	0.46,^g 0.440,^p 0.435,^q 0.437,^e 0.440^r
645	F vi	2s2p ³P⁰–2p^{2 3}P	0.194	0.18,^g 0.176^e
651	F vi	2s2p ¹P⁰–2p^{2 1}S	0.106, 0.097^j	0.10,^g 0.101,^q 0.111^e

λ(Å) ± 0.3Å	Ion	Transition
432.8	F vi	2p3p ¹P–2p4d D⁰
		2p3p ³D–2p4d ³P⁰
		2p3s ¹P⁰–2p4p ¹P
449.6	F vi	2p3p ³S–2p4d ³P⁰
460.5	F vi	2p3p ³P–2p4d ³P⁰
		2p3p ¹P–2p4s ¹P⁰
548.2	F vi	2p3d ³P⁰–2p4p ³S
632.5	F viii	4–5
672.2	F vii	5–9
698.4	F vi	2s3p ³P⁰–2p3p ³D
	F viii	5s ³S–7p ³P⁰
726.8	F vi	2s3p ¹P⁰–2p3p ¹D
	F viii	5–7
736.5	F vii	4s ²S–5p ²P⁰
763.3	F vii	5–8
797.7	F vii	4p ²P⁰–5d ²D
800.5	F vi	2s3p ³P⁰–2p3p ³P
807.3	F vi	2s3s ³S–2p3s ³P⁰
813. ± 2.	F vii**	1s2s2p ⁴P⁰–1s2p^{2 4}P
820.0	F vi	2s3d ³D–2p3d ³D⁰
833.9	F vi	2s3s ¹S–2p3s ¹P⁰
839.6	F vii	4d ²D–5p²P⁰
	F vi	2s3p ³P⁰–2p3p ³S
855.4	F vii	4p ²P⁰–5s²S
894.7	F viii	6s ³S–9p ³P⁰ ?
948.9	F vii	5–7
1124	F vii**	1s2s3d ⁴D–1s2p3d ⁴P⁰ ?
1161	F vii**	1s2s3d ⁴D–1s2p3d ⁴D⁰ ?

Ion	λ (Å)	Transition	Upper level lifetime (ns)	Other work (ns)
F ii	607	2s²2p^{4 3}P–2s2p^{5 3}P⁰	0.32 ± 0.03	0.29 ± 0.05,^a 0.36 ± 0.02,^b 0.358 ± 0.024^f
F iii	568	2s²2p^{3 2}D⁰–2s2p^{4 2}D	0.33 ± 0.03	0.304 ± 0.015^a
	630	2s²2p^{3 2}P⁰–2s2p^{4 2}D	0.34 ± 0.03	0.296 ± 0.015^a
	657	2s²2p^{3 4}S⁰–2s2p^{4 4}P	0.92 ± 0.09	0.74 ± 0.04^a
	743	2s2p^{4 2}P–2p^{5 2}P⁰	0.25 ± 0.03
F iv	490.6	2s²2p^{2 1}S–2s2p^{3 1}P⁰	0.072 ± 0.01
	491	2s²2p^{2 1}D–2s2p^{3 1}D⁰	0.155 ± 0.015	0.16 ± 0.02^a
	572	2s²2p^{2 3}P–2s2p^{3 3}P⁰	0.43 ± 0.03	0.44 ± 0.020^a, 0.57 ± 0.05,^b 0.29 ± 0.015
	679	2s²2p^{2 3}P–2s2p^{3 3}D⁰	1.21 ± 0.07	1.27 ± 0.06^a
	722	2s2p^{3 1}D⁰–2p^{4 1}D	0.25 ± 0.03
F v	163.5	2s2p^{2 4}P–2s2p3d ⁴D⁰	0.016 ± 0.003
	186.8	2s2p^{2 4}P–2s2p3s ⁴P⁰	0.054 ± 0.004
	466	2s²2p ²P⁰–2s2p^{2 2}P	0.117 ± 0.015
	508	2s²2p ²P⁰–2s2p^{2 2}S	0.215 ± 0.02
	514	2s2p^{2 2}D–2p^{3 2}P⁰	0.148 ± 0.01
	526	2s2p^{2 4}P–2p^{3 4}S⁰	0.118 ± 0.01
	648	2s2p^{2 2}D–2p^{3 2}D⁰	0.410 ± 0.03
	654	2s²2p ²P⁰–2s2p^{2 2}D	1.25 ± 0.10	1.21 ± 0.12^c
	694	2s²3d ²D–2s²4f ²F⁰	0.10 ± 0.01
	713	2s2p(³P⁰)3d ⁴P^o–2s2p(³P⁰)4f ⁴D	0.135 ± 0.02
	757	2s2p^{2 2}P–2p^{3 2}P⁰	0.150 ± 0.01	0.214 ± 0.004^c
F vi	153.8	2s2p ³P⁰–2s3s ³S	0.031 ± 0.004	0.0312 ± 0.0006^d
	479	2s3d ³D–2s4f ³F⁰	0.07 ± 0.01
	535	2s^{2 1}S–2s2p ¹P⁰	0.31 ± 0.04	0.37 ± 0.02^c
	645	2s2p ³P⁰–2p^{2 3}P	0.32 ± 0.04
	651	2s2p ¹P⁰–2p^{2 1}S	0.21 ± 0.02	0.23 ± 0.02^c
	1139	2s2p ¹P⁰–2p^{2 1}D	2.5 ± 0.1	2.35 ± 0.07,^c 2.3 ± 0.1^e
F vii	826	4f ²F⁰–5g ²G	0.25 ± 0.04
F viii	1434	$2 s {³ S}_{1} - 2 p {³ P}_{1}^{0}$	0.41 ± 0.06^g

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