Positron sensing of distribution of defects in depth materials

Купчишин, А. И.; Kupchishin, A A; Voronova, N A; Kirdyashkin, V I

doi:10.1088/1757-899x/110/1/012040

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…Calculations results of are given in figures 3-5 and in tables 2-5 [16][17][18][19][20][21]. Finding the radiation defects concentration area of result at ionic radiation has allowed to find this area's behavior regularities.…”

Section: Resultsmentioning

confidence: 99%

Optimization calculation algorithms on cascade and probabilistic functions and radiation defects concentration at the ionic radiation

Komarov

Шмыгалева

Akanbay

et al. 2019

Int. j. math. phys.

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Work is performed within a cascade and probabilistic method which essence consists in receiving and further usage of the cascade and probabilistic functions (CPF) for various particles. CPF make sense to probability that the particle generated at some depth of h' will reach a certain depth of h after n number of impacts. In work optimization calculation algorithms of the cascade and probabilistic functions (CPF) depending on interactions number and particles penetration depth is offered, concentration of radiation defects at ionic radiation for the purpose of reduction calculation time and quality. For calculation CPF and concentration radiation defects there is an area of result, border of this area and a calculation step. Borders and a calculation step selection automation is executed.

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Section: Resultsmentioning

confidence: 99%

Optimization calculation algorithms on cascade and probabilistic functions and radiation defects concentration at the ionic radiation

Komarov

Шмыгалева

Akanbay

et al. 2019

Int. j. math. phys.

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“…CPF depending on interactions number for protons and alpha particles behave as follows: at small values of depths CPF decrease, with increase in CPF penetration depth the CPF increase, reaching a maximum, then decrease. With increase E 0 the number of the decreasing curves increases [20][21][22]. for protons in copper at Е 0 =15 MeV from penetration depth for n=1, 4, 7, 10, 13, 16…”

Section: Resultsmentioning

confidence: 99%

Mathematical modelling of radiation defect formation processes in the materials irradiated with protons and alpha particles

Комаров

Купчишин

Kuatbayeva

et al. 2017

Int. j. math. phys.

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Metals and alloys still remain constructional, instrumental and other materials basis. An important factor in their properties formation are the crystalline grid nano-defects arising, in particular, in case of radiation. By the ionic bombing receiving high-quality, dense metal films and coverings on substrates could be realized. Such materials search and development rely on clear understanding nanodefects radiation creation mechanisms. In the work process of interaction protons and alpha particles with substance and radiation defects formations is considered. For calculation the cascade and probabilistic functions, the primary beaten-out atoms (PBOA) ranges, radiation defects concentration needs to execute approximating expression selection and to find approximation coefficients for interaction section. Interaction section for protons and alpha particles is calculated by Rutherford's formula. Analytical expression on cascade and probabilistic function taking into account energy losses for protons and alpha particles from recurrence relations for transition probabilities is received. The cascade and probabilistic function calculation algorithm, primary beaten-out atoms range, radiation defects concentration is given.

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“…A lot of works have been devoted to the problems of the interaction of particles with matter and the generation of radiation defects upon irradiation of matter with ions [5][6][7][8][9][10][11][12][13]. Most of the work in this direction is carried out as part of the cascade-probability method [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Development of an algorithm for calculating the concentration of radiation defects during ion irradiation

Шмыгалева¹,

Konysbayeva²

2020

Bul. Kar. Univ. - Math.

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The paper considers mathematical modeling of radiation defect formation processes in materials under ion irradiation. Algorithms for calculating cascade probability functions (CPF) taking into account energy, spectra of primary knocked out atoms (PKA) and the concentration of radiation defects during ion irradiation loss are presented. The defect concentration was calculated for various incident particles and targets of the periodic table. The regularities of the behavior of the concentration of defects depending on various physical parameters are revealed. The calculation algorithm is presented in the form of flowcharts. The work was performed as part of the cascade-probability method, the essence of which is to obtain and further use CPF. CPFs have the meaning of the probability that a particle generated at a certain depth h' will reach the detection depth h after the nth number of collisions.

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Positron sensing of distribution of defects in depth materials

Cited by 4 publications

References 5 publications

Optimization calculation algorithms on cascade and probabilistic functions and radiation defects concentration at the ionic radiation

Optimization calculation algorithms on cascade and probabilistic functions and radiation defects concentration at the ionic radiation

Mathematical modelling of radiation defect formation processes in the materials irradiated with protons and alpha particles

Development of an algorithm for calculating the concentration of radiation defects during ion irradiation

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