Production of 63Ni of high specific activity

Sosnin, L.J.; Suvorov, I.A.; Tcheltsov, A.N.; Rogozev, B. I.; Gudov, V.I.

doi:10.1016/0168-9002(93)90526-n

Cited by 12 publications

(2 citation statements)

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“…For example, for the 63 Ni radioisotope, the specific activity is only 59 Ci/g. The technology used to produce 63 Ni [5] is rather complicated and expensive, so in most cases, the concentration of 63 Ni in the source does not exceed 20%. The use of laser technology for the separation of isotopes in atomic vapor (atomic vapor laser isotope separation, AVLIS) [6] can significantly reduce the cost of this process and provide sources with an enrichment of 50% or higher.…”

Section: Introductionmentioning

confidence: 99%

Simulation of the Properties of Betavoltaic Cells Based on Silicon and 63Ni Enriched Film

Polikarpov

Yakimov

2019

J. Synch. Investig.

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Using a previously developed procedure for predicting the parameters of betavoltaic cells, we carry out calculations for cells based on a radioactive film enriched with 63 Ni up to 50% and real silicon structures, namely, a Ni/n-Si Schottky barrier and a p + -n diode. The procedure includes Monte Carlo calculation of the depth-dependent rate of the generation of β radiation by excess carriers and an experimental determination by SEM of the probability of their collection for specific structures. The need for such calculations is associated with the development of new possibilities of nickel enrichment with a radioactive isotope. We obtain achievable values of the short-circuit current, open-circuit voltage, filling factor, and cell power, which allows not only prediction of the parameters of such cells but also optimization of their structure. It is most expedient to use optimized p-n junctions in such cells.

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Section: Introductionmentioning

confidence: 99%

Simulation of the Properties of Betavoltaic Cells Based on Silicon and 63Ni Enriched Film

Polikarpov

Yakimov

2019

J. Synch. Investig.

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“…Centrifugal technology developed in Russia allows the enrichment of the radioactive isotope. [17] This process (second radioactive enrichment cascade in Figure 6) is used for the processing of the irradiated target; this centrifugal separation produces Ni-63 (81.2 % enrichment) from the target material with a Ni-63 content of 6.4 %. The extraction of Ni-63 into a heavy fraction (the target product) will be 75 %.…”

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confidence: 99%

Highly Enriched Nickel‐63 Radionuclide for β‐Voltaic Nuclear Batteries

Bryskin¹,

Пустовалов²,

Tsvetkov³

et al. 2014

Energy Tech

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The requirements for nickel‐63 (Ni‐63) in β‐voltaic nuclear batteries were analyzed. For commercial use, the degree of Ni‐63 enrichment should in the range of 70–90 % instead of the currently available commercial product (18–20 % enrichment). Such a significant increase in the enrichment level would improve the energy conversion efficiency of the β‐particles by ten times. An industrial scheme for production of highly enriched Ni‐63 is proposed.

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63Ni-based β-electric current source

Пустовалов

Гусев²,

Zadde³

et al. 2007

At Energy

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The possibility of developing a β-electric atomic battery with microwatt power based on 63 Ni with a lifetime of at least 30 years is analyzed. A method is proposed for large-scale commercial production of 63 Ni with concentration 80-90% in the final product. A design of a β-electric transducer based on macroporous silicon with optimized configuration and macropore depth (microchannels) is presented and analyzed. 63 Ni is deposited on the inner surface of the microchannels.A laboratory model of an atomic battery based on 63 Ni has been fabricated. The working parameters and the current-voltage characteristics of a 500 µW(e) atomic battery based 63 Ni (90% concentration) are presented.The development and adoption of objects of microsystems engineering in practice raise the problem of developing a new generation of microwatt-range miniature high-capacity autonomous power sources that meet modern requirements for the specific power capacity, service life, continuous operating time, and reliability during the entire period of service in a wide temperature range. In our opinion, atomic batteries operating on the β-electric effect best meet these requirements. This effect is an analogue of the photoelectric effect, the only difference being that the electron-hole pairs in a crystal lattice of the semiconductor are formed by β particles and not light.The operation of a β-electric transducer can be compared with the operation of a photoelectric transducer under conditions of low illumination. A β-electric transducer is a semiconductor component with a p-n junction in contact with a source of β radiation. The energy required for producing electron-hole pairs arises as result of the coulomb interaction of the β particles with electrodes of the crystal lattice; the number of nonequilibrium carriers which are formed is proportional to the energy of the incident particle flux.The first works on β-electric transducers, using 90 Sr, appeared in the mid-1950s [1]. Subsequently, similar studies were performed using 147 Pm and tritium [2][3][4][5].The present article examines the use of 63 Ni in an atomic battery for the electric power range 100-500 µW. Radionuclides emitting β particles whose energy spectrum does not exceed the threshold for radiation damage in a semiconductor transducer are applicable for miniature β-electric atomic batteries (Table 1). The short half-life of 147 Pm, previously used in atomic batteries, does not give stable parameters for operating times exceeding three years. An advantage of tritium is that the commercial production of tritium in large quantities and with adequate isotopic purity has been mastered. 63 Ni competes with tritium. As a source of energy it is attractive because of, first and foremost, its long half-life T 1/2 = 100 yr.

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Production of 63Ni of high specific activity

Cited by 12 publications

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Simulation of the Properties of Betavoltaic Cells Based on Silicon and 63Ni Enriched Film

Simulation of the Properties of Betavoltaic Cells Based on Silicon and 63Ni Enriched Film

Highly Enriched Nickel‐63 Radionuclide for β‐Voltaic Nuclear Batteries

63Ni-based β-electric current source

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