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Basic features of boron isotope separation by SILARC method in the two-step iterative static model

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Abstract

In this paper we develop a new static model for boron isotope separation by the laser assisted retardation of condensation method (SILARC) on the basis of model proposed by Jeff Eerkens. Our model is thought to be adequate to so-called two-step iterative scheme for isotope separation. This rather simple model helps to understand combined action on boron separation by SILARC method of all important parameters and relations between them. These parameters include carrier gas, molar fraction of BCl3 molecules in carrier gas, laser pulse intensity, gas pulse duration, gas pressure and temperature in reservoir and irradiation cells, optimal irradiation cell and skimmer chamber volumes, and optimal nozzle throughput. A method for finding optimal values of these parameters based on some objective function global minimum search was suggested. It turns out that minimum of this objective function is directly related to the minimum of total energy consumed, and total setup volume. Relations between nozzle throat area, IC volume, laser intensity, number of nozzles, number of vacuum pumps, and required isotope production rate were derived. Two types of industrial scale irradiation cells are compared. The first one has one large throughput slit nozzle, while the second one has numerous small nozzles arranged in parallel arrays for better overlap with laser beam. It is shown that the last one outperforms the former one significantly. It is argued that NO2 is the best carrier gas for boron isotope separation from the point of view of energy efficiency and Ar from the point of view of setup compactness.

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Acknowledgments

This work was supported by Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by Ministry of Education, Science and Technology (2010-0020077). One of the authors (K.L.) also appreciates support from the grant “the 2nd phase BK21 project”.

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Authors and Affiliations

  1. Plasma Physics Laboratory, Department of Nuclear and Energy Engineering, Applied Radiological Science Research Institute, Jeju National University, Ara-dong 1, Jeju, 690-756, South Korea

    K. A. Lyakhov & H. J. Lee

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  1. K. A. Lyakhov
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  2. H. J. Lee
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Correspondence to H. J. Lee.

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Lyakhov, K.A., Lee, H.J. Basic features of boron isotope separation by SILARC method in the two-step iterative static model. Appl. Phys. B 111, 261–272 (2013). https://doi.org/10.1007/s00340-012-5328-7

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  • DOI: https://doi.org/10.1007/s00340-012-5328-7

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