Control system of electron linac LU-40
The reconstruction of a two-section electron LU-40 linac was finished in 2004. The accelerator consists of two accelerating sections and an injector, the latter includes a diode electron gun, a klystron type buncher and an accelerating cavity. Pulse current at the accelerator exit is up to 200 µA,...
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| Zitieren: | Control system of electron linac LU-40 / Yu.I. Akchurin, V.N. Boriskin, V.A. Gurin, N.V. Demidov, L.V. Yeran, M.V. Ivahnenko, S.F. Nescheret, A.N. Savchenko, А.А. Sarvilov, V.I. Tatanov, G.N. Tsebenko // Вопросы атомной науки и техники. — 2006. — № 2. — С. 115-116. — Бібліогр.: 4 назв. — англ. |
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irk-123456789-788672016-04-15T13:35:36Z Control system of electron linac LU-40 Akchurin, Yu.I. Boriskin, V.N. Gurin, V.A. Demidov, N.V. Yeran, L.V. Ivahnenko, M.V. Nescheret, S.F. Savchenko, A.N. Sarvilov, A.A. Tatanov, V.I. Tsebenko, G.N. Линейные ускорители заряженных частиц The reconstruction of a two-section electron LU-40 linac was finished in 2004. The accelerator consists of two accelerating sections and an injector, the latter includes a diode electron gun, a klystron type buncher and an accelerating cavity. Pulse current at the accelerator exit is up to 200 µA, the beam energy is up to 100 MeV. В 2004 году закончена реконструкция двухсекционного линейного ускорителя электронов ЛУ-40. Ускоритель состоит из двух ускоряющих секций и инжектора, который включает в себя диодную электронную пушку, группирователь и ускоряющий резонатор. Импульсный ток на выходе ускорителя до 200 мА, энергия пучка до 100 МэВ. У 2004 році закінчено реконструкцію двохсекційного лінійного прискорювача електронів ЛП-40. Прискорювач складається з двох прискорюючих секцій та інжектора, який включає до себе діодну електронну гармату, груповач і прискорюючий резонатор. Імпульсний струм на виході прискорювача досягає 200 мА, енергія пучка − 100 МеВ. 2006 Article Control system of electron linac LU-40 / Yu.I. Akchurin, V.N. Boriskin, V.A. Gurin, N.V. Demidov, L.V. Yeran, M.V. Ivahnenko, S.F. Nescheret, A.N. Savchenko, А.А. Sarvilov, V.I. Tatanov, G.N. Tsebenko // Вопросы атомной науки и техники. — 2006. — № 2. — С. 115-116. — Бібліогр.: 4 назв. — англ. 1562-6016 PACS: 29.17.+w http://dspace.nbuv.gov.ua/handle/123456789/78867 en Вопросы атомной науки и техники Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
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Линейные ускорители заряженных частиц Линейные ускорители заряженных частиц |
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Линейные ускорители заряженных частиц Линейные ускорители заряженных частиц Akchurin, Yu.I. Boriskin, V.N. Gurin, V.A. Demidov, N.V. Yeran, L.V. Ivahnenko, M.V. Nescheret, S.F. Savchenko, A.N. Sarvilov, A.A. Tatanov, V.I. Tsebenko, G.N. Control system of electron linac LU-40 Вопросы атомной науки и техники |
| description |
The reconstruction of a two-section electron LU-40 linac was finished in 2004. The accelerator consists of two
accelerating sections and an injector, the latter includes a diode electron gun, a klystron type buncher and an accelerating
cavity. Pulse current at the accelerator exit is up to 200 µA, the beam energy is up to 100 MeV. |
| format |
Article |
| author |
Akchurin, Yu.I. Boriskin, V.N. Gurin, V.A. Demidov, N.V. Yeran, L.V. Ivahnenko, M.V. Nescheret, S.F. Savchenko, A.N. Sarvilov, A.A. Tatanov, V.I. Tsebenko, G.N. |
| author_facet |
Akchurin, Yu.I. Boriskin, V.N. Gurin, V.A. Demidov, N.V. Yeran, L.V. Ivahnenko, M.V. Nescheret, S.F. Savchenko, A.N. Sarvilov, A.A. Tatanov, V.I. Tsebenko, G.N. |
| author_sort |
Akchurin, Yu.I. |
| title |
Control system of electron linac LU-40 |
| title_short |
Control system of electron linac LU-40 |
| title_full |
Control system of electron linac LU-40 |
| title_fullStr |
Control system of electron linac LU-40 |
| title_full_unstemmed |
Control system of electron linac LU-40 |
| title_sort |
control system of electron linac lu-40 |
| publisher |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| publishDate |
2006 |
| topic_facet |
Линейные ускорители заряженных частиц |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/78867 |
| citation_txt |
Control system of electron linac LU-40 / Yu.I. Akchurin, V.N. Boriskin, V.A. Gurin, N.V. Demidov, L.V. Yeran, M.V. Ivahnenko,
S.F. Nescheret, A.N. Savchenko, А.А. Sarvilov, V.I. Tatanov, G.N. Tsebenko
// Вопросы атомной науки и техники. — 2006. — № 2. — С. 115-116. — Бібліогр.: 4 назв. — англ. |
| series |
Вопросы атомной науки и техники |
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| fulltext |
CONTROL SYSTEM OF ELECTRON LINAC LU-40
Yu.I. Akchurin, V.N. Boriskin, V.A. Gurin, N.V. Demidov, L.V. Yeran, M.V. Ivahnenko,
S.F. Nescheret, A.N. Savchenko, А.А. Sarvilov, V.I. Tatanov, G.N. Tsebenko
NSC KIPT, Kharkov, Ukraine
E-mail: boriskin@kipt.kharkov.ua
The reconstruction of a two-section electron LU-40 linac was finished in 2004. The accelerator consists of two
accelerating sections and an injector, the latter includes a diode electron gun, a klystron type buncher and an acceler-
ating cavity. Pulse current at the accelerator exit is up to 200 µA, the beam energy is up to 100 MeV.
PACS: 29.17.+w
1. CONTROL SYSTEM STRUCTURE
A special system (Fig.1) has been developed for
linac control. It controls an electron beam current, ener-
gy and position, defends accelerating and scanning sys-
tems from damage caused by the beam; blocks the mod-
ulator and the klystron amplifier in the case of intolera-
ble operation regimes; regulates phase and power of HF
signals in the injecting system and also regulates the
source power currents in the magnetic system. The pro-
gram & technical complex consists of a PC equipped
with fast four channels ADC into the CAMAC crate
(Fig.1), a synchronization unit, microprocessor-operated
complexes to monitor the thermostatic system
(ADAM-5511) and magnet current sources (MP-1816).
The software of IMS operates under Windows environ-
ment and was written with the use of a visual object-ori-
ented programming system C++Builder 5.
Fig.1. Control system functional diagram of the LU-40
accelerator
The multiplexer (МР) and the analogue to digital
converters (ADC) with 8 digits receive a signal from
analog pulse sensors with 50 or 100 nsec discreteness
by 4 (out of 32) switching channels simultaneously. The
information about linac system state and beam parame-
ters is shown on the local unit terminals (CP) and on a
color graphics display (Fig.2). The operator can monitor
the linac work from the PC keyboard and from the local
control panels. The program units can provide the mo-
mentary or repeated control over system parameters or
give operating commands. Simultaneously, the parame-
ters of several systems can be controlled and only one of
them can be regulated at a time.
Fig.2. Tuning videogram of accelerator LU-40
Data for parameter beam accelerator transmit to the
information system for the physicists and transmit to
computer network of the scientific research complex
“Accelerator”.
2. OPERATIVE CONTROL OVER CURRENT
AND POSITION OF AN ELECTRON BEAM
The linac is equipped with magnetoinductance trans-
ducers placed at the input and output of accelerating
structures for measurement of a value and form of beam
pulse current [2]. The signals from transducers are used
in the control system for rating the amplitude and aver-
age current values (Fig.2). The sensors calibration is
carried out periodically with the test pulse trains from a
special current generator [3]. The linac exit is also
equipped with four winding position sensors [3]. These
sensors register the beam center position with 0.5 mm
error [4]. The magnetic analyzer is used for electron en-
ergy control [1].
3. SYNCHRONIZING SYSTEM
A synchronizing system of the LU-40 accelerator
forms the frequency scale of pedestal pulses
f0 = 100, 25, 12.5, 6.25, 3.125 or 1 Hz. The operation
startup frequency of EGM modulator and KPA modula-
tor are f0. KPA modulator starts twice if f0 = 12.5, 6.25
3.125 or 1 Hz. The synchronizing unit has 10 channels.
Pulse amplitude is not more than 15 V, the pulse width
is 2.5 ± 0.5 µs, the delay range is from 0 to 10 µs with
the step 0.1 µs. When the alarm signal “Beam switching
off” is received from accelerator systems, the electron
beam is turned off with additional delay of EGM startup
pulses on 11 µs. There are continuous synchronizing
system mode and mode of the pulse dosage. Required
pulse number from 1 to 9999 is specified by an opera-
tor. Pulses with frequency f0 are synchronous with a fre-
quency of supply line (50 ± 0.5 Hz).
__________________________________________________________
PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY. 2006. № 2.
Series: Nuclear Physics Investigations (46), p.115-116. 115
mailto:boriskin@kipt.kharkov.ua
4. THERMOSTATIC SYSTEM
A thermostatic system of the LU-40 accelerator pro-
vides thermal stabilization of two accelerating sections
and the accelerating resonator. The system consists of
7 temperature-sensitive elements, 3 transducers of water
flow through the objects being cooled and a detector of
water level in the tank. The thermostatic system
ADAM 5511 consistent with a personal computer (PC)
is used for analysis of signals from the transducers.
Information on controlled object state is transferred
to the controlling PC via RS-485 interface; the lock sig-
nals come to an alarm system.
5. ALARM SYSTEM
The alarm system monitors more than 50 discrete
state signals of the accelerator systems. It allows turning
on the high voltage of supply for the injector (HV) and
two modulators. If equipment malfunction occurs, a
command is received to execute an emergency shut-
down of the HV and beam current. The local control is
conducted from the klystron room while remote control is
performed from the main control panel. Information on
system state is presented on the local control panel [6].
6. MAGNET POWER SUPPLY CONTROL
Twelve direct current sources B5-47 and B5-49 are
used for current traction of the magnet accelerator ele-
ments. The controlled relay switching unit (SU) was de-
signed to reverse the source polarity. There exists a pos-
sibility to change the source current and polarity either
manually or automatically. In the latter case after the PC
command obtaining, the microprocessor (MP 1816) sets
the polarity and current values of the sources. A mes-
sage is sent to the LU-40 operator if instant values differ
from specified ones.
REFERENCES
1 K.I. Antipov, M.I. Ayzatsky, Yu.I. Akchurin et al.
S-Band Electron Linac with Beam Energy of 30…
100 MeV // Problems of atomic science and tech-
nology. Ser.“Nuclear Physics Investigation”. 2004,
№5(46), p.135-138.
2 Uj.V. Avdeev, V.N. Boriskin et al. Metrological
Research of Measurement Facility Parameters of
Electron Radiation LU-10 и LU-40 KIPT. Preprint
KIPT 91-6, Kharkov, 1991.
3 V.L. Uvarov et al. A Beam Monitoring & Calibra-
tion System for High-Power Electron Linacs / Bul-
letin of the American Physical Society. 1997, v.42,
№3, p.1367.
4 V.N. Boriskin, V.A. Gurin, L.V. Reprincev et al.
Channel of the Control of the Beam Position in the
High-Current LEA / Digest of the XV Meeting on
the Accelerated Particles. 1996, Dubna, Russia.
АВТОМАТИЗИРОВАННАЯ СИСТЕМА КОНТРОЛЯ И УПРАВЛЕНИЯ УСКОРИТЕЛЯ ЛУ-40
Ю.И. Акчурин, В.Н. Борискин, В.А. Гурин, Н.В. Демидов, Л.В. Еран, М.В. Ивахненко, С.Ф. Нещерет,
А.Н. Савченко, А.А. Сарвилов, В.И. Татанов, Г.Н. Цебенко
В 2004 году закончена реконструкция двухсекционного линейного ускорителя электронов ЛУ-40. Уско-
ритель состоит из двух ускоряющих секций и инжектора, который включает в себя диодную электронную
пушку, группирователь и ускоряющий резонатор. Импульсный ток на выходе ускорителя до 200 мА, энергия
пучка до 100 МэВ.
АВТОМАТИЗОВАНА СИСТЕМА КОНТРОЛЮ ТА КЕРУВАННЯ ПРИСКОРЮВАЧА ЛП-40
Ю.І. Акчурін, В.М. БорискІн, В.О. Гурін, М.В. Демидов, Л.В. Єран, М.В. Ивахненко, С.Ф. Нещерет,
А.М. Савченко, О.А. Сарвилов, В.І. Татанов, Г.М. Цебенко
У 2004 році закінчено реконструкцію двохсекційного лінійного прискорювача електронів ЛП-40.
Прискорювач складається з двох прискорюючих секцій та інжектора, який включає до себе діодну
електронну гармату, груповач і прискорюючий резонатор. Імпульсний струм на виході прискорювача
досягає 200 мА, енергія пучка − 100 МеВ.
__________________________________________________________
PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY. 2006. № 2.
Series: Nuclear Physics Investigations (46), p.115-116. 115
Yu.I. Akchurin, V.N. Boriskin, V.A. Gurin, N.V. Demidov, L.V. Yeran, M.V. Ivahnenko, S.F. Nescheret, A.N. Savchenko, А.А. Sarvilov, V.I. Tatanov, G.N. Tsebenko
NSC KIPT, Kharkov, Ukraine
4. THERMOSTATIC SYSTEM
REFERENCES
Ю.И. Акчурин, В.Н. Борискин, В.А. Гурин, Н.В. Демидов, Л.В. Еран, М.В. Ивахненко, С.Ф. Нещерет, А.Н. Савченко, А.А. Сарвилов, В.И. Татанов, Г.Н. Цебенко
Ю.І. Акчурін, В.М. БорискІн, В.О. Гурін, М.В. Демидов, Л.В. Єран, М.В. Ивахненко, С.Ф. Нещерет, А.М. Савченко, О.А. Сарвилов, В.І. Татанов, Г.М. Цебенко
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