Production of a highly enriched<sup>176</sup>Yb isotope in weight amounts by the atomic-vapour laser isotope separation method

Andreev, O. I.; Derzhiev, V. I.; Dyakin, V M; Егоров, А. Г.; Mikhal'tsov, L A; Тарасов, В.А.; Tolkachev, A I; Toporov, Yu. P.; Chaushanskii, S A; Yakovlenko, S. I.

doi:10.1070/qe2006v036n01abeh013105

Cited by 14 publications

(5 citation statements)

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“…These applications have led to considerable interest in spectroscopic studies and an isotope separation of these lanthanides, especially for the Yb and Sm isotopes. 1) In this paper, we report on a selective photoionization and a laser isotope separation of Yb isotopes. Table 1 lists the isotopic abundance of natural Yb and the thermal neutron absorption cross-section, (b).…”

Section: Introductionmentioning

confidence: 99%

Stable Isotope Production of¹⁶⁸Yb and¹⁷⁶Yb for Industrial and Medical Applications

Park

Kwon

et al. 2008

Journal of Nuclear Science and Technology

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We have developed a laser isotope separation technology for the production of the 168 Yb and 176 Yb isotopes. 168 Yb is very useful for the generation of a non destructive testing source, 169 Yb. 176 Yb can be used to produce 177 Lu which is known to be a promising radioisotope for a medical application. For these applications, the abundances of 168 Yb and 176 Yb isotopes should be enriched to more than 15% and 97%, respectively. Our developed system consists of three dye lasers pumped by a diode-pumped solid-state laser, a Yb evaporator, and a photo-ion extractor. Up to now, we could enrich 168 Yb to more than 31% with a productivity of 0.5 mg/h. Also, we succeeded in enriching 176 Yb to more than 97% with a productivity of 27 mg/h.

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Section: Introductionmentioning

confidence: 99%

Stable Isotope Production of¹⁶⁸Yb and¹⁷⁶Yb for Industrial and Medical Applications

Park

Kwon

et al. 2008

Journal of Nuclear Science and Technology

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“…This three-step photoionization scheme was also used to conduct the Yb LIS experiments by other researchers. [14][15][16][17][18] The natural abundances, nuclear spins and isotope shifts of ytterbium isotopes are list in Table 1, where all of the isotope shifts are relative to 176 Yb, and the number in bracket is the atomic angular momentum quantum number. All even isotopes do not have hyperfine splitting, while 171 Yb and 173 Yb with non-zero nuclear spins own hyperfine structures for both excited states.…”

Section: Resultsmentioning

confidence: 99%

“…As a result, the laser isotope separation (LIS) method is the only option for economic ytterbium isotope separation. [14][15][16][17][18] Basically, the LIS method is based on isotopic selective photoionization of atomic vapors under several narrowbandwidth laser pulses. Target isotopes are excited and ionized resonantly, while non-target isotopes are ionized barely due to the isotope shifts.…”

Section: Introductionmentioning

confidence: 99%

Numerical studies of isotopic selective photoionization of ytterbium in a three-step ionization scheme

Liu¹,

Wang²

2023

Chinese Phys. B

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Numerical studies of selective photoionization of ytterbium isotope have been carried out based on a three-step photoionization scheme, 4f 146s 2 1S0 (0 cm-1) → 4f 146s6p 3P1 (17992.008 cm-1) → (4f 136s 26p) (7/2, 3/2)2 (35196.98 cm-1) → auto-ionization state (52353 cm-1) → Yb+, by the density matrix theory with the consideration of atomic hyperfine structures and magnetic sublevels. To examine the physical model, the numerical isotopic abundances of ytterbium are compared with those of mass spectroscopy experiments and good agreements are acquired. The excitation and ionization processes of ytterbium are discussed and analyzed in detail on this basis, especially for odd isotopes. The effects of frequency detuning, power densities, spectral bandwidths, polarization of two excitation lasers and atomic Doppler broadening on the total ionization yield and isotopic abundance are presented numerically and the optimization excitation conditions for 176Yb enrichment are identified semi-quantitatively.

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“…These photoions are likely to undergo charge exchange collisions with the unionized atomic vapour during the extraction. The probability of charge exchange collisions can be calculated using the equation given below 23 where, σ is the resonant charge exchange cross-section (cm 2 ), d is the distance traversed by the photoions prior to collection at the ion collector (cm) and N is the number density of the atoms (atoms/cm 3 ).…”

Section: Resultsmentioning

confidence: 99%

Enrichment of 150Nd for neutrinoless double-beta decay detection

Suryanarayana

2022

Sci Rep

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A 562 nm–627 nm–597 nm three-step resonant photoionization scheme has been studied using the density matrix formalism for the enrichment of 150Nd in weighable quantities for the neutrinoless double-beta decay detection. The effect of bandwidth of the excitation laser and charge exchange collisions, on the production rates and degree of enrichment has also been studied. Optimum conditions for the efficient enrichment of 150Nd isotope have been derived. It has been shown that it might be possible to produce 50 kg of 66% enriched 150Nd isotope in about five months (16 h/day) using the conditions derived through this investigation. This enables to reach the 0νββ decay half-life limit of ≈ 1.8 × 1025 year for the 150Nd isotope.

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Production of a highly enriched¹⁷⁶Yb isotope in weight amounts by the atomic-vapour laser isotope separation method

Cited by 14 publications

References 1 publication

Stable Isotope Production of¹⁶⁸Yb and¹⁷⁶Yb for Industrial and Medical Applications

Stable Isotope Production of¹⁶⁸Yb and¹⁷⁶Yb for Industrial and Medical Applications

Numerical studies of isotopic selective photoionization of ytterbium in a three-step ionization scheme

Enrichment of 150Nd for neutrinoless double-beta decay detection

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Production of a highly enriched176Yb isotope in weight amounts by the atomic-vapour laser isotope separation method

Cited by 14 publications

References 1 publication

Stable Isotope Production of168Yb and176Yb for Industrial and Medical Applications

Stable Isotope Production of168Yb and176Yb for Industrial and Medical Applications

Numerical studies of isotopic selective photoionization of ytterbium in a three-step ionization scheme

Enrichment of 150Nd for neutrinoless double-beta decay detection

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Product

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Production of a highly enriched¹⁷⁶Yb isotope in weight amounts by the atomic-vapour laser isotope separation method

Stable Isotope Production of¹⁶⁸Yb and¹⁷⁶Yb for Industrial and Medical Applications

Stable Isotope Production of¹⁶⁸Yb and¹⁷⁶Yb for Industrial and Medical Applications