scholarly journals Isotope separation of 176Lu a precursor to 177Lu medical isotope using broadband lasers

2020 ◽  
Author(s):  
Suryanarayana Mv
Keyword(s):  
Isotope Separation ◽  
Dye Lasers ◽  
Medical Applications ◽  
Optimum Conditions ◽  
Autoionization State ◽  
System Requirements ◽  
Medical Isotope ◽  
Rhodamine Dye

Abstract A new photoionization scheme accessible by Rhodamine dye lasers is proposed for the isotopeseparation of 176Lu. 5d6s2 2D3/2 (0.0 cm-1) - 573.8130 nm -> 5d6s6p 4Fo3/2 (17427.28 cm-1) - 609.6007 nm -> 6s6p2 4P3/2 (33831.46 cm-1) ---> Autoionization State---> Lu+ Optimum conditions for the isotope separation have been derived and compared with thepreviously reported work. The enrichment of ~ 49% can be obtained with > 12 mg / hourproduction rates even when broadband lasers with bandwidth of 500 MHz employed for the twostep excitation. The simplified system requirements for the photoionization scheme with a highproduction rate is expected reduce the global shortage of 176Lu for medical applications.

scholarly journals Isotope separation of 176Lu a precursor to 177Lu medical isotope using broadband lasers

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. V. Suryanarayana
Keyword(s):  
Production Rate ◽  
Isotope Separation ◽  
Medical Applications ◽  
Optimum Conditions ◽  
High Production Rate ◽  
Laser Isotope Separation ◽  
High Production ◽  
System Requirements ◽  
Medical Isotope ◽  
Rhodamine Dye

AbstractA new photoionization scheme accessible by Rhodamine dye lasers is proposed for the isotope separation of 176Lu.$$5d6s^{2}\,{^{2}D_{{3/2}}} (0.0\, {\text{cm}}^{{ - 1}} )\mathop{\longrightarrow}\limits^{{573.8130\, {\text{nm}}}}5d6s6p\,{^{4}F_{{3/2}}^{o}} \left( {17427.28\, {\text{cm}}^{{ - 1}} } \right)\mathop{\longrightarrow}\limits^{{560.3114\, {\text{nm}}}}$$ 5 d 6 s 2 2 D 3 / 2 ( 0.0 cm - 1 ) ⟶ 573.8130 nm 5 d 6 s 6 p 4 F 3 / 2 o 17427.28 cm - 1 ⟶ 560.3114 nm $$6s{6p}^{2}\,{^{4}{P}_{5/2}}\left(35274.5 \,{\text{cm}}^{-1}\right){\to } Autoionization\, State {\to }{Lu}^{+}$$ 6 s 6 p 2 4 P 5 / 2 35274.5 cm - 1 → A u t o i o n i z a t i o n S t a t e → Lu + Optimum conditions for the laser isotope separation have been theoretically computed and compared with the previously reported work. The enrichment of ~ 63% can be obtained with > 22 mg/h production rate even when broadband lasers with bandwidth of 500 MHz are employed for the two step excitation. The simplified system requirements for the photoionization scheme combined with a high production rate of 176Lu than previously reported is expected to reduce the global shortage of 176Lu isotope for medical applications.

Buildup of picosecond pulse generation in passively mode‐locked rhodamine dye lasers

1973 ◽  
Vol 23 (2) ◽  
pp. 88-89 ◽  
Author(s):  
E. G. Arthurs ◽  
D. J. Bradley ◽  
A. G. Roddie
Keyword(s):  
Picosecond Pulse ◽  
Pulse Generation ◽  
Dye Lasers ◽  
Rhodamine Dye

Efficient polymer dye lasers with variable wavelengths for medical applications

1999 ◽  
Author(s):  
Stephen C. Picarello ◽  
Robert S. Anderson ◽  
Vladimir S. Nechitailo ◽  
Gennady A. Matyushin
Keyword(s):  
Dye Lasers ◽  
Medical Applications

Passive mode-locking of flashlamp pumped Rhodamine dye-lasers

1969 ◽  
Vol 1 (2) ◽  
pp. 69-74 ◽  
Author(s):  
D. J. Bradley ◽  
F. O'neill
Keyword(s):  
Mode Locking ◽  
Dye Lasers ◽  
Passive Mode ◽  
Rhodamine Dye

Die physikalischen Grundlagen der Uran235-Anreicherung nach dem Trenndüsenverfahren / The Physics of Uranium235-Enrichment in the Separation Nozzle Process

1973 ◽  
Vol 28 (8) ◽  
pp. 1267-1272 ◽  
Author(s):  
W. Bier ◽  
G. Eisenbeiß ◽  
G. Heeschen
Keyword(s):  
Reynolds Number ◽  
Flow Velocity ◽  
Isotope Separation ◽  
Uranium Isotopes ◽  
Nozzle Flow ◽  
Nozzle Wall ◽  
Optimum Conditions ◽  
Better Than

The effects of the added light gases H2, He, and D2 on the separation of the uranium isotopes in the separation nozzle process are compared experimentally. The superiority of H2 under economically optimum conditions turns out to be caused essentially by its less dissipative nozzle flow characterized by a higher Reynolds number. This advantage is decreased if differences in the flow velocity lose their effects on isotope separation, e. g. at higher expansion ratios. Thus, with He added, the isotope separation effects can get closer to those observed with H2; D2 even can get better than H2, because He and D2 prevent more efficiently UF6 from concentrating rapidly at the outer nozzle wall.

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