Diagnostic module for the radiation beam system “TEMP-B”
The power module designed for the calibration and adjustment of the units and components of microsecond accelerator of relativistic electron beams (REB) “Temp-B” has been developed and manufactured. The noise immune gauge of high charging voltages of the terminal capacitors used by four-channel puls...
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2017
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| Цитувати: | Diagnostic module for the radiation beam system “TEMP-B” / A.B. Batrakov, E.G. Glushko, А.М. Yegorov, A.A. Zinchenko, Y.F. Lonin, A.G. Ponomarev, S.I. Fedotov // Вопросы атомной науки и техники. — 2017. — № 1. — С. 112-114. — Бібліогр.: 4 назв. — англ. |
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irk-123456789-1221452017-06-28T03:03:04Z Diagnostic module for the radiation beam system “TEMP-B” Batrakov, A.B. Glushko, E.G. Yegorov, А.М. Zinchenko, A.A. Lonin, Y.F. Ponomarev, A.G. Fedotov, S.I. Динамика плазмы и взаимодействие плазма-стенка The power module designed for the calibration and adjustment of the units and components of microsecond accelerator of relativistic electron beams (REB) “Temp-B” has been developed and manufactured. The noise immune gauge of high charging voltages of the terminal capacitors used by four-channel pulse voltage generator (PVG) and the discharger operating in the broad band of charging voltages have been manufactured. The methods developed using the module and the manufactured noise immune gauge of high charging voltages were applied to the accelerator “Temp-B”. Разработан и изготовлен силовой модуль для калибровки и отладки узлов и элементов микросекундного ускорителя релятивистских электронных пучков (РЭП) “Темп-Б”. Изготовлены помехозащищённый измеритель высокого зарядного напряжения на оконечных конденсаторах четырёхканального генератора импульсного напряжения (ГИН) и разрядник, работающий в широком диапазоне зарядных напряжений. Разработанные на модуле методики и изготовленный помехозащищённый измеритель высокого зарядного напряжения применены на ускорителе “Темп-Б”. Розроблено та виготовлено силовий модуль для калібрування і налагодження вузлів та елементів мікросекундного прискорювача релятивістських електронних пучків (РЕП) “Темп-Б”. Виготовлено перешкодозахищений вимірювач високої зарядної напруги на кінцевих конденсаторах чотириканального генератора імпульсної напруги (ГІН) та розрядник, що працює в широкому діапазоні розрядних напруг. Розроблені на модулі методики і виготовлений перешкодозахищений вимірювач високої зарядної напруги застосовані на прискорювачі “Темп-Б”. 2017 Article Diagnostic module for the radiation beam system “TEMP-B” / A.B. Batrakov, E.G. Glushko, А.М. Yegorov, A.A. Zinchenko, Y.F. Lonin, A.G. Ponomarev, S.I. Fedotov // Вопросы атомной науки и техники. — 2017. — № 1. — С. 112-114. — Бібліогр.: 4 назв. — англ. 1562-6016 http://dspace.nbuv.gov.ua/handle/123456789/122145 PACS: 29.20.-c; 29.90. +r en Вопросы атомной науки и техники Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Динамика плазмы и взаимодействие плазма-стенка Динамика плазмы и взаимодействие плазма-стенка |
| spellingShingle |
Динамика плазмы и взаимодействие плазма-стенка Динамика плазмы и взаимодействие плазма-стенка Batrakov, A.B. Glushko, E.G. Yegorov, А.М. Zinchenko, A.A. Lonin, Y.F. Ponomarev, A.G. Fedotov, S.I. Diagnostic module for the radiation beam system “TEMP-B” Вопросы атомной науки и техники |
| description |
The power module designed for the calibration and adjustment of the units and components of microsecond accelerator of relativistic electron beams (REB) “Temp-B” has been developed and manufactured. The noise immune gauge of high charging voltages of the terminal capacitors used by four-channel pulse voltage generator (PVG) and the discharger operating in the broad band of charging voltages have been manufactured. The methods developed using the module and the manufactured noise immune gauge of high charging voltages were applied to the accelerator “Temp-B”. |
| format |
Article |
| author |
Batrakov, A.B. Glushko, E.G. Yegorov, А.М. Zinchenko, A.A. Lonin, Y.F. Ponomarev, A.G. Fedotov, S.I. |
| author_facet |
Batrakov, A.B. Glushko, E.G. Yegorov, А.М. Zinchenko, A.A. Lonin, Y.F. Ponomarev, A.G. Fedotov, S.I. |
| author_sort |
Batrakov, A.B. |
| title |
Diagnostic module for the radiation beam system “TEMP-B” |
| title_short |
Diagnostic module for the radiation beam system “TEMP-B” |
| title_full |
Diagnostic module for the radiation beam system “TEMP-B” |
| title_fullStr |
Diagnostic module for the radiation beam system “TEMP-B” |
| title_full_unstemmed |
Diagnostic module for the radiation beam system “TEMP-B” |
| title_sort |
diagnostic module for the radiation beam system “temp-b” |
| publisher |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| publishDate |
2017 |
| topic_facet |
Динамика плазмы и взаимодействие плазма-стенка |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/122145 |
| citation_txt |
Diagnostic module for the radiation beam system “TEMP-B” / A.B. Batrakov, E.G. Glushko, А.М. Yegorov, A.A. Zinchenko, Y.F. Lonin, A.G. Ponomarev, S.I. Fedotov // Вопросы атомной науки и техники. — 2017. — № 1. — С. 112-114. — Бібліогр.: 4 назв. — англ. |
| series |
Вопросы атомной науки и техники |
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| fulltext |
ISSN 1562-6016. ВАНТ. 2017. №1(107)
112 PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY. 2017, № 1. Series: Plasma Physics (23), p. 112-114.
DIAGNOSTIC MODULE FOR THE RADIATION BEAM
SYSTEM “TEMP-B”
A.B. Batrakov, E.G. Glushko, А.М. Yegorov, A.A. Zinchenko, Y.F. Lonin, A.G. Ponomarev,
S.I. Fedotov
NSC “Kharkov Institute of Physics and Technology”, Kharkov, Ukraine
E-mail: batrakov@kipt.kharkov.ua
The power module designed for the calibration and adjustment of the units and components of microsecond ac-
celerator of relativistic electron beams (REB) “Temp-B” has been developed and manufactured. The noise immune
gauge of high charging voltages of the terminal capacitors used by four-channel pulse voltage generator (PVG) and
the discharger operating in the broad band of charging voltages have been manufactured. The methods developed
using the module and the manufactured noise immune gauge of high charging voltages were applied to the accelera-
tor “Temp-B”.
PACS: 29.20.-c; PACS: 29.90. +r
INTRODUCTION
The diagnostic module was manufactured to adjust
updated and new manufactured elements of the “Temp-
B” accelerator. It allows for simulation of the processes
that occur in the accelerator of relativistic electron
beams and it is equipped with all the required control
devices and elements.
The available method of charging the high voltage
capacitors of pulse voltage generators with the control
of input charging voltage fails to provide reliable infor-
mation on the charge of pulse voltage generator due to
voltage losses and leakages in accelerator elements. The
operation of the “TEMP-B” accelerator showed the
need for the control of the charging voltage of the ca-
pacitors of pulse voltage generators. The voltage control
at the terminal capacitors of four – channel pulse volt-
age generator allows for the control of the charging pro-
cess and the generation of identical charging voltages in
each channel of PVG.
DESCRIPTION
The power module was manufactured to develop the
methods of diagnostic measurements. It consists of in-
put high voltage transformer URS-70, laboratory trans-
former PHO 250-5, high-voltage voltage multiplier,
thyratron discharger start-up block and the discharger.
The thyratron trigger circuit shapes the short pulse of
15 kV and that results in the actuation of the discharger
of capacitor bank. The structural design of the dis-
charger allows it to operate steadily in the range of
charging voltages of 5 to 90 kV. The gap between the
electrodes is 8 mm and the gap between the main elec-
trode and the control electrode is 2 mm. The control
electrode is made of stainless steel of 1.5 mm thick in
the form of a disk with the aperture in the central region.
Fig. 1. gives the external view of the discharger. A de-
crease in the gap between the electrodes allows us to
reduce the discharger inductance and the current
buildup front. Maximum parameters of the module are
as follows: charging voltage is up to 90 kV, the dis-
charge current is up to 50 kA, and the current buildup
front is – 600 ns.
Fig. 2 gives the block-diagram of the diagnostic
module. The experimental investigations of the parame-
ters of high-energy slowing down X-radiation carried
out using the “Temp-B” accelerator as a simulation de-
vice of the reactor zone require to control high charging
dc voltage of the capacitors of pulse voltage generators.
Fig. 1. High-voltage discharger
Fig. 2. A block diagram of the diagnostic model
Such modes of operation of the “Temp-B” accelera-
tor require generating high-current beams with the cur-
rent of tens of kA and the particle energy of ~ MeV [1].
mailto:batrakov@kipt.kharkov.ua
ISSN 1562-6016. ВАНТ. 2017. №1(107) 113
Such parameters are achieved using the four-channel
pulse voltage generator. Each channel contains 19 high-
voltage capacitors, charging resistances and appropriate
dischargers. Charging resistances were made of the sec-
tions of vinyl tubes filled with the NaCl water solution.
The external view of pulse voltage generator is given in
Fig. 3.
Fig. 3. Pulse voltage generator
The capacitor charging process allowed us to estab-
lish that the values of charging resistances are changea-
ble because of changes in temperature and in the chemi-
cal purity of solution. This results in different charging
time of PVG channels. The measurement of the voltages
of terminal capacitors of each channel allows us to con-
trol the charging process. The high dc voltage is usually
measured using the high-resistance divider fabricated in
compliance with the requirements set to the high voltage
equipment.
Operation of the “Temp-B” accelerator is character-
ized by the availability of transient currents and high
voltage jumps. As a result, electromagnetic fields are
formed near the experimental plant that can create inter-
ference inductions in metering devices that considerably
exceed the signal measured. Therefore, it is necessary to
place the metering equipment at a certain distance from
the accelerator arranging it inside the shielded enclo-
sure. The availability of large alternating magnetic
fields creates a big problem for communication lines
made of screened coaxial cables due to the so-called
earth loops. A change in the magnetic field can induce
large voltages in such loops. The use of light-emitting
diode as the communication line allows for a considera-
ble improvement of the noise immunity and the safety
of personnel working in a high voltage environment.
The high voltage meter was fabricated using the re-
laxation transistor generator in the avalanche mode [2]
that allows for a rather easy voltage-to-pulse repetition
frequency conversion. Such a circuit allows us to get the
conversion accuracy of the order of tenth fractions of
the percent. The stable operation of this circuit is
achieved due to the self-regulation of the difference in
threshold voltages [3].
The high-voltage meter diagram is shown in Fig. 4.
To shape the rectangular current pulse that runs through
the LED the accumulating LC-line was used that allows
us to generate the current pulse of ~ 120 mА with the
duration of ~ 5 s [4]. The light signal receiver was
made using the phototransistor and the dedicated micro-
circuit 1054 HAZ that shapes the standard rectangular
pulse. This pulse actuates the pulse repetition rate-to-
voltage converter. The frequency converter was realized
using univibrator 155 AG1 and the sensing head with
the full-scale deflection current of 300 A. Such a dia-
gram allows for the measurement of capacitor voltages
to 80 kV. The measurement accuracy was equal to
0.5 % and the sensing head error was not taken into ac-
count.
Fig. 4. High-voltage meter diagram
CONCLUSIONS
1. The high-voltage meter is used for the measurement
of the charging voltage of PVG capacitors used by the
microsecond accelerator “Temp-B” and it allows us to
control the charging voltage in each PVG channel. The
measurement error is within 0.5 % and the sensing head
error is not taken into account.
2. The developed and assembled diagnostic module al-
lows for the operation simulation of the REB accelerator
“Temp-B” and it has the following parameters: the
charging voltage is up to 90 kV, the discharge current is
up to 50 kA and the current buildup front is up to-
600 ns.
3. The developed discharger makes it possible to com-
mute the capacitor banks in the diagnostic module in the
voltage range of 5 to 90 kV.
114 ISSN 1562-6016. ВАНТ. 2017. №1(107)
REFERENCES
1. A.B. Batrakov, S.P. Bondarenko, A.G. Lonin,
A.G. Ponomarev, G.V. Sotnikov. Optimizing the Pa-
rameters of Relativistic Electron Beams to Generate
Intense Slowing-down R-Radiation // Problems of
Atomic Science and Technology. Series “Plasma Elec-
tronics and New Acceleration Methods”. 2010, № 43,
p. 21-24.
2. V.P. Diakonov. Avalanche Transistors and the Use of
Them for Pulse Devices. M.: “Sov. Radio”, 1973, p. 251
(in Russian).
3. E.P. Bochkar, A.I. Zakharov, A.P. Sokolov // Instru-
ments and Experimental Techniques. 1986, № 1, p. 204.
4. G.A. Mesiats. Generation of High-Power Nanosec-
ond Pulses. M.: “Sov. Radio”, 1974, p. 274 (in Rus-
sian).
3
Article received 19.09.2016
ДИАГНОСТИЧЕСКИЙ МОДУЛЬ РАДИАЦИОННО-ПУЧКОВОГО КОМПЛЕКСА “ТЕМП-Б”
А.Б. Батраков, Е.Г. Глушко, А.М. Егоров, А.А. Зинченко, Ю.Ф. Лонин, А.Г. Пономарёв, С.И. Федотов
Разработан и изготовлен силовой модуль для калибровки и отладки узлов и элементов микросекундного
ускорителя релятивистских электронных пучков (РЭП) “Темп-Б”. Изготовлены помехозащищённый измери-
тель высокого зарядного напряжения на оконечных конденсаторах четырёхканального генератора импульс-
ного напряжения (ГИН) и разрядник, работающий в широком диапазоне зарядных напряжений. Разработан-
ные на модуле методики и изготовленный помехозащищённый измеритель высокого зарядного напряжения
применены на ускорителе “Темп-Б”.
ДІАГНОСТИЧНИЙ МОДУЛЬ РАДІАЦІЙНО-ПУЧКОВОГО КОМПЛЕКСА “ТЕМП-Б”
О.Б. Батраков, Є.Г. Глушко, О.М. Єгоров, А.О. Зінченко, Ю.Ф. Лонін, А.Г. Пономарьов, С.І. Федотов
Розроблено та виготовлено силовий модуль для калібрування і налагодження вузлів та елементів мікро-
секундного прискорювача релятивістських електронних пучків (РЕП) “Темп-Б”. Виготовлено перешкодоза-
хищений вимірювач високої зарядної напруги на кінцевих конденсаторах чотириканального генератора ім-
пульсної напруги (ГІН) та розрядник, що працює в широкому діапазоні розрядних напруг. Розроблені на
модулі методики і виготовлений перешкодозахищений вимірювач високої зарядної напруги застосовані на
прискорювачі “Темп-Б”.
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