RT-office for optimization of industrial EB and X-ray processing
The conception for design of the Radiation-Technological Office (RT-Office) was developed by authors. RTOffice realize computer technologies at all basic stages of works execution on the radiation-technological lines (RTL) using irradiators of electron beam (EB), X-ray and γ-ray. The description of...
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| Date: | 2004 |
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2004
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| Cite this: | RT-office for optimization of industrial EB and X-ray processing / V.T. Lazurik, V.M. Lazurik, G.F. Popov, Yu.V. Rogov // Вопросы атомной науки и техники. — 2004. — № 2. — С. 186-188. — Бібліогр.: 5 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1859630916658266112 |
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| author | Lazurik, V.T. Lazurik, V.M. Popov, G.F. Rogov, Yu.V. |
| author_facet | Lazurik, V.T. Lazurik, V.M. Popov, G.F. Rogov, Yu.V. |
| citation_txt | RT-office for optimization of industrial EB and X-ray processing / V.T. Lazurik, V.M. Lazurik, G.F. Popov, Yu.V. Rogov // Вопросы атомной науки и техники. — 2004. — № 2. — С. 186-188. — Бібліогр.: 5 назв. — англ. |
| collection | DSpace DC |
| container_title | Вопросы атомной науки и техники |
| description | The conception for design of the Radiation-Technological Office (RT-Office) was developed by authors. RTOffice realize computer technologies at all basic stages of works execution on the radiation-technological lines
(RTL) using irradiators of electron beam (EB), X-ray and γ-ray. The description of the programs ModeRTL and XRSoft which are intended for simulation of EB and X-ray processing is considered in the paper.
Концепція Радіаційно-Технологічного Офісу (РТ-Офіс) була розроблена авторами. РТ-Офіс реалізує
комп'ютерні технології на всіх етапах виконання робіт на радіаційно-технологічних лініях з випромінювачами електронів, X-ray і γ-ray. Представлено опис програм ModeRTL і XR-Soft, призначених
для моделювання радіаційно-технологічних процесів.
Концепция Радиационно-Технологического Офиса (РТ-Офис) была разработана авторами. РТ-Офис
реализует компьютерные технологии на всех этапах выполнения работ на радиационно-технологических
линиях с излучателями электронов, X-ray и γ-ray. Представлено описание программ ModeRTL и XR-Soft,
предназначенных для моделирования радиационно-технологических процессов.
|
| first_indexed | 2025-12-07T13:10:48Z |
| format | Article |
| fulltext |
RT-OFFICE FOR OPTIMIZATION OF INDUSTRIAL EB
AND X-RAY PROCESSING
V.T. Lazurik, V.M. Lazurik, G.F. Popov, Yu.V. Rogov
Kharkov National University, Kharkov, Ukraine
E-mail: popov@univer.kharkov.ua
The conception for design of the Radiation-Technological Office (RT-Office) was developed by authors. RT-
Office realize computer technologies at all basic stages of works execution on the radiation-technological lines
(RTL) using irradiators of electron beam (EB), X-ray and γ-ray. The description of the programs ModeRTL and XR-
Soft which are intended for simulation of EB and X-ray processing is considered in the paper.
PACS: 29.17.+w
1. INTRODUCTION
At present an electron beam (EB), X-ray
(bremsstrahlung) and γ-ray processings are widely used
in different industrial radiation technologies. Success of
the use of ionizing radiation in different radiation
technologies depends largely on development of
theoretical notions, semiempirical models and computer
codes for simulation of irradiation processes on the
radiation-technological lines (RTL).
Now there is no a set of consistent simulation
methods for radiation processes which allow to fulfil
correct and agreed simulation at all stages of radiation-
technological process realization. There are the
powerful universal packages as ITS, EGS, GEANT,
MARS, PENELOPE and others for simulation of
electron and photon transport through arbitrary
multielement constructions, which allow to fulfil
simulation at separate stages of radiation-technological
process. The development of the programs for specific
radiation-technological processes on basis these
packages demands a lot of time, and calculation are
carried out long enough. With these universal programs
only experienced personnel of physicists - the experts in
the field of transport of an ionizing radiation through
matter, mathematicians, programmers and interpreters
of calculations results can work. There are no computer
programs accessible to a broad audience of users
without a special knowledge in the field of transport of
ionizing radiation and computer technologies.
For decision above problems, the conception for
design of the Radiation-Technological Office (RT-
Office) - software tools for EB, X-ray and γ-ray
processings was developed by authors. The modules
structure, geometrical and physical models of the EB
and X-ray irradiators for the programs ModeRTL and
XR-Soft that were constructed from the RT-Office
modules are considered in the paper more closely.
2. RT-OFFICE CONSIDERATION
RT-Office is the common program shell, which
provides flexible and intellectual interaction between
specialized modules and databases for optimum
planning of process of an irradiation and control of its
realization. The wide opportunities of the RT-Office are
based on the authors developments of last years [1,2,3]:
semiempirical models for dose distribution of an
ionizing radiation in spatially non-uniform objects
irradiated by electron, X-ray and γ-ray; high effective
programs for simulating by Monte Carlo (MC) method
of the irradiation processes in heterogeneous objects;
databases for the equipment characteristics and objects
used in radiation technologies; computer methods of
expertise and control of conditions for an irradiation
realization; the methods validation of theoretical
predictions on the basis of comparison of calculation
data obtained by different independent simulation
methods and/or comparison with experimental results.
At implementation of the simulation MC methods the
specially designed schemes which allow to reduce a
running time for receiving of the end results in about
hundreds time were applied.
The RT-Office includes the list of the following
functional modules and databases:
• Module of MC simulation of dose distribution for
electron beam into heterogeneous targets irradiated by
EB on moving conveyer.
• Module of MC simulation of dose distribution for
electron beam into heterogeneous targets irradiated by
EB in stationary regimes via scatterer.
• Module of MC simulation of dose distribution for EB
into thin dosimetric films.
• Module for calculation by special developed
semiempirical model of 2-D dose distribution for targets
irradiated by EB on moving conveyer.
• Module of MC simulation of charge deposition into
heterogeneous targets irradiated by EB.
• Module of MC simulation of conversion of electron
energy to X-ray (bremsstrahlung) energy.
• Module of MC simulation of dose distribution into
heterogeneous targets irradiated by X-ray beam on
moving conveyer.
• Module of MC simulation of dose distribution for
cylindrical turntable target irradiated by X-ray beam.
• Module of MC simulation of γ-ray intensity from
distributed source with radionuclides.
• Module of MC simulation of dose distribution from
distributed source with radionuclides in an environment.
• Calorimetry module. Calculation of spatial
distribution of radiation-induced temperature and
analytical estimations of integral characteristics of a
heat transmission for process of cooling of the irradiated
products in a thermostable environment.
• Comparison module. Methods of mathematical
physics for handling and comparative analysis of depth
dose curves obtained by different calculation and
experimental methods.
___________________________________________________________
PROBLEMS OF ATOMIC SIENCE AND TECHNOLOGY. 2004. 2.№
Series: Nuclear Physics Investigations (43), p.186-188. 186
• Dosimetry module. Specialized tool for entering and
processing of experimental dosimetry data and their
transmission to the Comparison module.
• RTL configuration module. Entering and saving of the
operational characteristics for all construction elements
of RTL.
• Wizard for control and validation of input data for
working regimes of RTL.
• Module for cognitive visualization of results for 2-D
and 3-D view of dose distribution.
• The processing technologies database for equipment
characteristics and objects used in radiation
technologies.
• Module for the choice of geometrical model for
irradiated objects. This module will be designed in the
form of a Database with different geometrical model of
irradiated objects, such as tube, tubes package, box with
bottles, box with syringes, box with Petry cups, and
others. The module is under development.
The interaction between functional modules and
databases is carried out by means of a set of service
blocks. Simulation and calculation modules of the RT-
Office are the basis for construction of the specialized
software for EB, X-ray and γ-ray processing [1,2,3].
3. MODERTL AND XR-SOFT PROGRAMS
An electron accelerator, a scanner of electron beam,
a conveyor line, an irradiated product and a package are
the major components of the radiation-technological
lines (RTL) for EB irradiator. An additional element of
RTL for X-ray irradiator is an X-ray converter with
cooling system. The detailed physical and geometrical
models of the EB and X-ray irradiators were realized on
the base of RT-Office modules in the form of new
mathematical software: the program ModeRTL for EB
and the program XR-Soft for X-ray processings
respectively [1,3].
These programs were designed specially for
simulation and optimization of industrial radiation
processes, calculation of the absorbed dose, temperature
and charge distribution within products irradiated by
scanning electron and X-ray beams on industrial RTL
that is based on the pulsed or continuous type of
electron accelerators.
The processing rate of EB and X-ray absorbed dose
distribution within of the irradiated materials depend on
a lot of parameters of the radiation facility of RTL and
characteristics of target material. Input data for the
programs ModeRTL and XR-Soft are the following:
Parameters of electron beam: average beam current, or
pulse duration and repetition frequency in pulsed
accelerators, electron spectrum, beam diameter and
spatial distribution of the beam intensity. Parameters of
scanning system: modes of operation, the triangular or
non-diverging irradiation treatment field in target
material; form of current in magnet of scanning system;
repetition frequency of scanning; angular distribution of
electron beam at the outlet of a scanning system;
parameters of the exit window for electron beam.
Parameters of the X-ray converter with cooling system:
geometrical characteristics of the X-ray converter,
thickness of plates (layers) and cooling agent, materials
composition, distance between exit window and X-ray
converter. Parameters of conveyor line: speed and
geometrical characteristics of the line. Parameters of
irradiated product: geometrical characteristics of the
irradiated product; elemental composition of the target;
material and size of the covering for irradiated product.
Regimes of target irradiation: one-, two-sided irradiation
on moving conveyer for electron and X-Ray beams, and
additional irradiation of turning target for X-ray beams.
4. EB AND X-RAY DOSE MAPPING
Some results of simulation of EB and X-ray dose
mapping in the target irradiated at double-sided on
moving conveyer are presented in Fig.1 and Fig.2 (a)
and (b) respectively. Regimes irradiation for EB
processing: electron beam energy -5 MeV; beam current
–1 mA; triangular scanning; target - compound with
density 0.8 g/cm3 (wood of aspen +70%
polymethylmethacrylate); width of target –100 cm;
width of scanning –100 cm; conveyer speed –1 cm/s.
Target has not cover box. A current in magnet of
scanning system has the saw-tooth form. The optimal
thickness for maximum dose uniformity for electron
beam in compound is 5.6 cm relatively of dose
distribution at the center of a target.
Fig.1. 2-D view of the EB depth-dose distributions in
the center and in the boundaries of a target
X-ray beam was generated by scanning electron
beam with electron energy 5 MeV in a tantalum
converter. Converter construction includes the tantalum
target plate with thickness 1.2 mm, the cooling water
channel – 2 mm, and the Al backing plate - 5.0 mm. X-
ray yield in the forward direction for 5 MeV electron is
8.62%.
Simulation of EB dose mapping in irradiated target
materials was conducted by MC and Analytical
methods, for X-ray dose mapping - by MC in 2-D
model. The 2-D dose distribution in the target is
represented as function of two coordinates - of the target
depth (axis X) and the target width along scan direction
(axis Y). Conveyer moves along axis Z.
The compare results for EB depth-dose distributions
in a plane, which cross the center (curves 1,2) in the
direction of moving conveyer, and the boundaries
(curve 3) of an irradiated target at the end of scan beam
direction at double-sided irradiation are shown in Fig.1.
Curves 2 and 3 simulated by MC method, curve 1 - by
___________________________________________________________
PROBLEMS OF ATOMIC SIENCE AND TECHNOLOGY. 2004. 2.№
Series: Nuclear Physics Investigations (43), p.186-188.187
Analytical method. As is seen from Fig.1, the good
agreement between depth-dose distributions in a plane,
which cross the center calculated by Analytical method
(curves 1) and simulated by MC method (curve 2) is
observed. It allows to use Analytical method for fast
optimization of irradiation regimes and integrate it in
control system of radiation facility [2].
Fig.2(a) and (b). X-ray dose mapping within compound
for optimal target thickness and for the saw-tooth (a)
and special (b) forms of current in scan magnet
X-ray dose mapping within above compound for
optimal target thickness at double-sided irradiation for
saw-tooth and special forms of current in scan magnet
are shown in Fig.2,a and (b) respectively. The optimal
thickness of compound for maximum X-ray power
utilization is 38.5 cm relatively of dose distribution at
the center of a target. X-ray beam power utilization in
this case is 58%.
For each product to be treated in the X-ray
irradiation facility, there will usually be a minimum
dose limit Dmin-lim to obtain the desired effect and a
maximum dose limit Dmax-lim to avoid product
degradation. As is seen from Fig.2,a, the X-ray depth-
dose distribution within compound has minimal value
on the boundaries of a target along direction of the
scanning X-ray beam and maximal value at plane that
cross the target center. From standpoint of the dose
limits, the minimum dose limit Dmin-lim must be chosen as
a minimum dose value Dmin-bound on the boundaries of an
irradiated target, the maximum dose limit Dmax-lim - as a
maximum dose value Dmax-center in the target center. In
this case the dose uniformity ratio will be determined
for all irradiated volume as DURV =Dmax-center/Dmin-bound.
For the center of a target the dose uniformity ratio
DUR = Dmax/Dmin is 1.51. For the target boundary the
DUR is 1.94. The value DURV is 2.91. Significant dose
gradient in volume of irradiated target in direction of X-
ray scanning can be decrease by the choice of the
special shape of current in scan magnet, or with special
methods of irradiation [1,3,5].
The validation and verification of the results
simulated by the programs ModeRTL and XR-Soft were
carried out in compare with theoretical calculated data,
with results obtained by the universal packages such as
ITS, EGS and PENELOPE, and some experimental data
of authors and data in published work [1,3,4]. The
comparison investigations indicated that the developed
physical and mathematical models are reliable and
correct, and the programs ModeRTL and XR-Soft are
accurate.
5. CONCLUSIONS
The functional modules of the RT-Office can be
used as the basis for designing of the software for
decision of special tasks in different radiation-
technological processes. Specialized software for EB
and X-ray processings in the form of the programs
ModeRTL and XR-Soft were developed on the basis of
simulation and calculation modules of the RT-Office.
Programs ModeRTL and XR-Soft can be used as
predictive tools for of EB and X-ray dose mapping, for
determination of location Dmin and Dmax in volume of
target irradiated by scanning EB and X-ray beams on
RTL, and for optimization of regimes EB and X-ray
irradiation to receive maximum processing capacity
with the minimum for dose uniformity ratio.
REFERENCES
1. V.T. Lazurik, V.M. Lazurik, G. Popov, Yu. Rogov
// Proc. of the EBT’03 Conf. Varna, Bulgaria,
p.616-622.
2. V.T. Lazurik, V.M. Lazurik, G.Popov, Yu. Rogov
// Proc. of PhysCon'03. Saint Petersburg, Russia,
p.1003.
3. G.Popov, V.T.Lazurik, V.M.Lazurik, Yu.Rogov.
Abstract book of the PAC-03, p.82,
Portland.OR.USA.
4. J.Meissner, M. Abs, M.Cleland, A.Herer, Y.
Jongen, F. Kuntz, A.Strasser // Radiation Physics
and Chemistry. 2000. v.57, p.647-651.
5. S. Pismenesky, G.Popov, V.Rudychev // Radiation
Physics and Chemistry. 2002. v.63, p.601-602.
РТ-ОФИС ДЛЯ ОПТИМИЗАЦИИ ПРОМЫШЛЕННЫХ ПРОЦЕССОВ НА ОСНОВЕ ПУЧКОВ
ЭЛЕКТРОНОВ И ТОРМОЗНОГО ИЗЛУЧЕНИЯ
В.Т. Лазурик, В.М. Лазурик, Г.Ф. Попов, Ю.В. Рогов
- (Концепция Радиационно Технологического Офиса РТ-Офис) . была разработана авторами РТ-Офис
-реализует компьютерные технологии на всех этапах выполнения работ на радиационно технологических
, X-ray линиях с излучателями электронов и γ-ray. П редставлено описание программ ModeRTL и XR-Soft,
- . предназначенныхдлямоделированиярадиационно технологических процессов
- РТ ОФІС ДЛЯОПТИМІЗАЦІЇПРОМИСЛОВИХ ПРОЦЕСІВ НА ОСНОВІПУЧКІВ ЕЛЕКТРОНІВ
ІГАЛЬМОВОГО ВИПРОМІНЮВАННЯ
В.Т. Лазурік, В.М. Лазурік, Г.Ф. Попов, Ю.В. Рогов
Концепція Радіаційно-Технологічного Офісу (РТ-Офіс) була розроблена авторами. РТ-Офіс реалізує
комп'ютерні технології на всіх етапах виконання робіт на радіаційно-технологічних лініях з
188
випромінювачами електронів, X-ray і γ-ray. Представлено опис програм ModeRTL і XR-Soft, призначених
для моделювання радіаційно-технологічних процесів.
___________________________________________________________
PROBLEMS OF ATOMIC SIENCE AND TECHNOLOGY. 2004. 2.№
Series: Nuclear Physics Investigations (43), p.186-188.189
RT-Office for optimization of industrial EB
and X-ray processing
1. introduction
2. RT-OFFICE CONSIDERATION
The RT-Office includes the list of the following functional modules and databases:
References
|
| id | nasplib_isofts_kiev_ua-123456789-79392 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1562-6016 |
| language | English |
| last_indexed | 2025-12-07T13:10:48Z |
| publishDate | 2004 |
| publisher | Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| record_format | dspace |
| spelling | Lazurik, V.T. Lazurik, V.M. Popov, G.F. Rogov, Yu.V. 2015-03-31T19:24:20Z 2015-03-31T19:24:20Z 2004 RT-office for optimization of industrial EB and X-ray processing / V.T. Lazurik, V.M. Lazurik, G.F. Popov, Yu.V. Rogov // Вопросы атомной науки и техники. — 2004. — № 2. — С. 186-188. — Бібліогр.: 5 назв. — англ. 1562-6016 PACS: 29.17.+w https://nasplib.isofts.kiev.ua/handle/123456789/79392 The conception for design of the Radiation-Technological Office (RT-Office) was developed by authors. RTOffice realize computer technologies at all basic stages of works execution on the radiation-technological lines (RTL) using irradiators of electron beam (EB), X-ray and γ-ray. The description of the programs ModeRTL and XRSoft which are intended for simulation of EB and X-ray processing is considered in the paper. Концепція Радіаційно-Технологічного Офісу (РТ-Офіс) була розроблена авторами. РТ-Офіс реалізує комп'ютерні технології на всіх етапах виконання робіт на радіаційно-технологічних лініях з випромінювачами електронів, X-ray і γ-ray. Представлено опис програм ModeRTL і XR-Soft, призначених для моделювання радіаційно-технологічних процесів. Концепция Радиационно-Технологического Офиса (РТ-Офис) была разработана авторами. РТ-Офис реализует компьютерные технологии на всех этапах выполнения работ на радиационно-технологических линиях с излучателями электронов, X-ray и γ-ray. Представлено описание программ ModeRTL и XR-Soft, предназначенных для моделирования радиационно-технологических процессов. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Применение ускоренных пучков RT-office for optimization of industrial EB and X-ray processing РТ-офіс для оптимізації промислових процесів на основі пучків електронів і гальмового випромінювання РТ-офис для оптимизации промышленных процессов на основе пучков электронов и тормозного излучения Article published earlier |
| spellingShingle | RT-office for optimization of industrial EB and X-ray processing Lazurik, V.T. Lazurik, V.M. Popov, G.F. Rogov, Yu.V. Применение ускоренных пучков |
| title | RT-office for optimization of industrial EB and X-ray processing |
| title_alt | РТ-офіс для оптимізації промислових процесів на основі пучків електронів і гальмового випромінювання РТ-офис для оптимизации промышленных процессов на основе пучков электронов и тормозного излучения |
| title_full | RT-office for optimization of industrial EB and X-ray processing |
| title_fullStr | RT-office for optimization of industrial EB and X-ray processing |
| title_full_unstemmed | RT-office for optimization of industrial EB and X-ray processing |
| title_short | RT-office for optimization of industrial EB and X-ray processing |
| title_sort | rt-office for optimization of industrial eb and x-ray processing |
| topic | Применение ускоренных пучков |
| topic_facet | Применение ускоренных пучков |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/79392 |
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