This article is cited in
3 papers
OPTICS AND NUCLEAR PHYSICS
Increase in the efficiency of the isotope-selective infrared laser multiphoton dissociation of $^{11}$BCl$_3$ molecules in a mixture with SF$_6$ serving as a sensitizer and an acceptor of radicals
G. N. Makarov,
A. N. Petin Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow, 108840 Russia
Abstract:
A strong increase in the efficiency of the isotope-selective infrared laser multiphoton dissociation of
$^{11}$BCl
$_3$ molecules in the natural mixture with
$^{10}$BCl
$_3$ by radiation of a pulsed CO
$_2$ laser in the case of admixture of SF
$_6$ molecules, which serve as a sensitizer and simultaneously acceptors of radicals, Cl atoms formed in the dissociation of BCl
$_3$ molecules, has been detected. The yield and selectivity of dissociation of
$^{11}$BCl
$_3$ molecules increase by several times and the threshold energy density for the dissociation of molecules decreases significantly in the case of their irradiation in the mixture with SF
$_6$ compared to irradiation without SF
$_6$. This property allows the single-frequency isotope-selective dissociation of
$^{11}$BCl
$_3$ molecules by unfocused laser radiation at a moderate energy density
(
$\approx$ 3–5 J/cm
$^2$), which is important and relevant for the practical implementation of the laser separation of boron isotopes.
Received: 29.03.2022
Revised: 11.04.2023
Accepted: 11.04.2023
DOI:
10.31857/S123456782310004X
Fulltext:
PDF file (555 kB)
First page:
PDF file