Laser techniques applied to isotope separation of uranium

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

doi:10.1016/s0149-1970(97)00100-5

Cited by 13 publications

(3 citation statements)

References 31 publications

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“…Sulfur hexafluoride (SF 6 ), an octahedral molecule of O h symmetry, is of fundamental interest in several aspects. In particular, it is a test case for the complex molecular spectroscopy of hexafluoride molecules of well-known technological importance [1,2]. This has motivated a great deal of work on multi quanta absorption using powerful IR lasers [3] on the mechanisms involved in vibrational energy relaxations [4].…”

Section: Introductionmentioning

confidence: 99%

The high overtone and combination levels of SF 6 revisited at Doppler-limited resolution: A global effective rovibrational model for highly excited vibrational states

Faye

Boudon

Loëte

et al. 2017

Journal of Quantitative Spectroscopy and Radiative Transfer

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Sulfur hexafluoride is an important prototypal molecule for modeling highly excited vibrational energy flow and multi quanta absorption processes in hexafluoride molecules of technological importance. It is also a strong greenhouse gas of anthropogenic origin. This heavy species, however, features many hot bands at room temperature (at which only 30 % of the molecules lie in the ground vibrational state), especially those originating from the lowest, v 6 =1 vibrational state. Using a cryogenic long path cell with variable optical path length and temperatures regulated between 120 and 163K , coupled to Synchrotron Radiation and a high resolution interferometer, Doppler-limited spectra of the 2ν 1 + ν 3 , ν 1 + ν 2 + ν 3 , ν 1 + ν 3 , ν 2 + ν 3 , 3ν 3 , ν 2 + 3ν 3 and ν 1 + 3ν 3 from 2000 to 4000 cm-1 near-infrared region has been recorded. Low temperature was used to limit the presence of hot bands. The spectrum has been analyzed thanks to the XTDS software package. Combining with previously observed weak difference bands in the far infrared region involving the v 1 , v 2 , v 3 =1 states, we are thus able to use the tensorial model to build a global fit of spectroscopic parameters for v 1 =1,2, v 2 =1, v 3 =1,2,3. The model constitutes a consistent set of molecular parameters and enable spectral rovibrational simulation for all multi-quanta transitions involving v 1 , v 2 and v 3 up to v 1−3 =3. Tests simulation on rovibrational transitions not yet rovibrationally assigned are presented and compared to new experimental data.

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Section: Introductionmentioning

confidence: 99%

The high overtone and combination levels of SF 6 revisited at Doppler-limited resolution: A global effective rovibrational model for highly excited vibrational states

Faye

Boudon

Loëte

et al. 2017

Journal of Quantitative Spectroscopy and Radiative Transfer

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“…Isotopes are separated in many different ways, depending on and application. The most used isotope separation methods are those based on centrifuges (Beams and Haynes, 1936;Kholpanov et al, 1997), gas diffusion (Naylor and Backer, 1955), electromagnetic methods (Martynenko, 2009), thermal diffusion (Furry et al, 1939;Rutherford, 1986), aerodynamic method (Becker et al, 1967), ion exchange and chemical separation (Calusaru and Murgulescu, 1976;Kim et al, 2001), plasma centrifuge (Prasad and Krishnan, 1987;Del Bosco et al, 1987), ion cyclotron resonance -ICR (Dolgolenko and Muromkin, 2009;Louvet, 1995), atomic vapor laser isotope separation -AVLIS (Schwab et al, 1998;Paisner, 1988), and molecular LIS -MLIS (Schwab et al, 1998;Jensen et al, 1982).…”

Section: Introductionmentioning

confidence: 99%

“…Most of the isotope separation processes are based on mass difference, however, the methods based on lasers, generally called LIS methods rely on the subtle difference on electromagnetic radiation absorption spectra (Mack and Arroe, 1956). The Institute for Advanced Studies (IEAv) has studied isotope separation, both in MLIS and AVLIS, mainly in uranium enrichment for nuclear fuel production (Schwab et al, 1998). doi: 10.5028/jatm.2012.04041712…”

Section: Introductionmentioning

confidence: 99%

Generation of an atomic beam by using laser ablation for isotope separation purposes

Matos¹,

Oliveira²,

Sternberg³

et al. 2012

JATM

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Atomic vapor laser isotope separation has been studied at the Institute for Advanced Studies for nuclear purposes since 1982, and recently it has been questioned about its potentialities for the aerospace area. Many applications from nuclear propulsion to electricity generation and space navigation have been found, which justify the study of isotope separation for aerospace applications. ne of the ey process, and the rst step for atomic vapor laser isotope separation, is the production of a neutral vapor jet. This paper discussed the potentiality of using laser ablation as a tool to generate neutral metal vapor jet for isotope separation purposes. The basis for the discussion is a set of experimental results obtained at the Institute for Advanced Studies. The experiments were described, the results were analyzed using basic theoretical treatment found in the literature, and it was concluded that laser ablation is a potential tool for the generation of a neutral vapor jet for atomic vapor laser isotope separation purposes.

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The self-focusing of hollow gaussian laser beam in magnetized plasma with transverse magnetic field by operating relativistic nonlinearity

Hassan,

Dagher,

Hassan

2024

J Opt

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Laser techniques applied to isotope separation of uranium

Cited by 13 publications

References 31 publications

The high overtone and combination levels of SF 6 revisited at Doppler-limited resolution: A global effective rovibrational model for highly excited vibrational states

The high overtone and combination levels of SF 6 revisited at Doppler-limited resolution: A global effective rovibrational model for highly excited vibrational states

Generation of an atomic beam by using laser ablation for isotope separation purposes

The self-focusing of hollow gaussian laser beam in magnetized plasma with transverse magnetic field by operating relativistic nonlinearity

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