Bremsstrahlung converters for powerful industrial electron accelerators

Auslender, V.L.; Bukin, A. D.; Voronin, L.A.; Kokin, E.; Korobeinikov, M. V.; Krainov, G. S.; Лукин, А. Н.; Radchenko, V. M.; Сидоров, А. В.; Ткаченко, В. О.

doi:10.1016/j.radphyschem.2004.04.007

Cited by 22 publications

(9 citation statements)

References 2 publications

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“…It is known that at the same intensity of the electron beam incident on an extended converter, BS produce a dose distribution along the converter in the irradiated object with a maximum in the center and a minimum at the edges. In [11], in order to equalize the dose distribution, it was proposed to increase the intensity of the electron beam incident on the edges of the converter.…”

Section: Calculation Results With Optimal Converter Parametersmentioning

confidence: 99%

Optimization of the Bremsstrahlung Converter

Рудычев¹,

Azarenkov²,

Гірка³

et al. 2022

Problems of Atomic Science and Technology

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Variants of the formation of bremsstrahlung (BS) distributions along an extended converter, which ensures the maximum thickness of an object under two-sided and four-sided irradiation, are studied. For the target of the TaH2OFe converter, the thicknesses of the Pb filter were determined, at which the average BS energy increases by more than 25%. In the PENELOPE package, the simulation of dose distributions in polyethylene produced by BS converters with optimal targets: previously used TaH2OFe and proposed by us TaH2OFePb, for 7.5 MeV electron energy, was performed. For four-sided irradiation, a technique for optimizing the distribution of the BS intensity along an extended converter is proposed. The combined use of the TaH2OFePb target and optimal BS intensity distributions along an extended converter makes it possible to increase the thickness of objects by a factor of ~ 1.35 under four-sided irradiation, DUR < 1.5.

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Section: Calculation Results With Optimal Converter Parametersmentioning

confidence: 99%

Optimization of the Bremsstrahlung Converter

Рудычев¹,

Azarenkov²,

Гірка³

et al. 2022

Problems of Atomic Science and Technology

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“…In general, radiation sterilization performed by stream of X-rays became already a competitive solution to gamma process. X-rays processing was initiated many years ago in several EB facilities located in different countries as a new option for the radiation treatment [3][4][5][6]. The biggest facility of this type was established based on accelerator Rhodotron type.…”

Section: Original Papermentioning

confidence: 99%

Economical evaluation of radiation processing with high-intensity X-rays

Zimek

2020

Nukleonika

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X-rays application for radiation processing was introduced to the industrial practice, and in some circumstances is found to be more economically competitive, and offer more flexibility than gamma sources. Recent progress in high-power accelerators development gives opportunity to construct and apply reliable high-power electron beam to X-rays converters for the industrial application. The efficiency of the conversion process depends mainly on electron energy and atomic number of the target material, as it was determined in theoretical predictions and confirmed experimentally. However, the lower price of low-energy direct accelerators and their higher electrical efficiency may also have certain influence on process economy. There are number of auxiliary parameters that can effectively change the economical results of the process. The most important ones are as follows: average beam power level, spare part cost, and optimal shape of electron beam and electron beam utilization efficiency. All these parameters and related expenses may affect the unit cost of radiation facility operation and have a significant influence on X-ray process economy. The optimization of X-rays converter construction is also important, but it does not depend on the type of accelerator. The article discusses the economy of radiation processing with high-intensity of X-rays stream emitted by conversion of electron beams accelerated in direct accelerator (electron energy 2.5 MeV) and resonant accelerators (electron energy 5 MeV and 7.5 MeV). The evaluation and comparison of the costs of alternative technical solutions were included to estimate the unit cost of X-rays facility operation for average beam power 100 kW.

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“…The accelerator provides a pulsed electron beam with an energy up to 5 MeV, pulse duration of 400 ms, pulse frequency up to 60 Hz, and a beam power up to 50 kW. The accelerated electron beam passes through the vertical scanning device and final focusing bending magnet and then reaches the converter (Auslender et al, 2004). A conveyor transports the product through the irradiation zone.…”

Section: Introductionmentioning

confidence: 99%