Accelerating section for technological electron linac
The construction parameters and electrodynamic characteristics of the accelerating section with phase advance of
 120° at the operating frequency of 2856 MHz are presented. This section is designed to upgrade the electron LINAC
 LU-10 at NSC KIPT. Experimental results are compared wi...
Saved in:
| Published in: | Вопросы атомной науки и техники |
|---|---|
| Date: | 2016 |
| Main Authors: | , , , , , , , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2016
|
| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/115355 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Accelerating section for technological electron linac / M.I. Ayzatsky, E.Z. Biller, A.N. Dovbnya, K.Yu. Kramarenko, І.V. Khodak, V.A. Kushnir,
 V.V. Mytrochenko, T.Ph. Nikitina, A.M. Opanasenko, S.A. Perezhogin, D.L. Stepin,
 L.I. Selivanov, V.Ph. Zhiglo // Вопросы атомной науки и техники. — 2016. — № 3. — С. 38-44. — Бібліогр.: 15 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1860105155974791168 |
|---|---|
| author | Ayzatsky, M.I. Biller, E.Z. Dovbnya, A.N. Kramarenko, K.Yu. Khodak, І.V. Kushnir, V.A. Mytrochenko, V.V. Nikitina, T.Ph. Opanasenko, A.M. Perezhogin, S.A. Stepin, D.L. Selivanov, L.I. Zhiglo, V.Ph. |
| author_facet | Ayzatsky, M.I. Biller, E.Z. Dovbnya, A.N. Kramarenko, K.Yu. Khodak, І.V. Kushnir, V.A. Mytrochenko, V.V. Nikitina, T.Ph. Opanasenko, A.M. Perezhogin, S.A. Stepin, D.L. Selivanov, L.I. Zhiglo, V.Ph. |
| citation_txt | Accelerating section for technological electron linac / M.I. Ayzatsky, E.Z. Biller, A.N. Dovbnya, K.Yu. Kramarenko, І.V. Khodak, V.A. Kushnir,
 V.V. Mytrochenko, T.Ph. Nikitina, A.M. Opanasenko, S.A. Perezhogin, D.L. Stepin,
 L.I. Selivanov, V.Ph. Zhiglo // Вопросы атомной науки и техники. — 2016. — № 3. — С. 38-44. — Бібліогр.: 15 назв. — англ. |
| collection | DSpace DC |
| container_title | Вопросы атомной науки и техники |
| description | The construction parameters and electrodynamic characteristics of the accelerating section with phase advance of
120° at the operating frequency of 2856 MHz are presented. This section is designed to upgrade the electron LINAC
LU-10 at NSC KIPT. Experimental results are compared with calculated ones.
Приведены параметры конструкции и результаты исследования электродинамических характеристик
ускоряющей секции с набегом фазы 120° на рабочей частоте 2856 МГц, предназначенной для модернизации
ускорителя электронов ЛУ-10 ННЦ ХФТИ. Полученные экспериментальные данные сравниваются с расчётными.
Наведено параметри конструкції і результати дослідження електродинамічних характеристик прискорювальної секції з набігом фази 120° на робочій частоті 2856 МГц, яка призначена для модернізації прискорювача електронів ЛУ-10 ННЦ ХФТІ. Отримано експериментальні дані, які порівнюються з розрахунковими.
|
| first_indexed | 2025-12-07T17:31:35Z |
| format | Article |
| fulltext |
ISSN 1562-6016. ВАНТ. 2016. №3(103) 38
ACCELERATING SECTION FOR TECHNOLOGICAL
ELECTRON LINAC
M.I. Ayzatsky, E.Z. Biller, A.N. Dovbnya, K.Yu. Kramarenko, І.V. Khodak, V.A. Kushnir,
V.V. Mytrochenko, T.Ph. Nikitina, A.M. Opanasenko, S.A. Perezhogin, D.L. Stepin,
L.I. Selivanov, V.Ph. Zhiglo
National Science Center “Kharkov Institute of Physics and Technology”, Kharkov, Ukraine
E-mail: mitvic@kipt.kharkov.ua
The construction parameters and electrodynamic characteristics of the accelerating section with phase advance of
120° at the operating frequency of 2856 MHz are presented. This section is designed to upgrade the electron LINAC
LU-10 at NSC KIPT. Experimental results are compared with calculated ones.
PACS: 29.20.Ej
INTRODUCTION
A powerful electron linac with beam energy of
10 MeV and average power up to 20 kW is under de-
velopment at NSC KIPT. The linac gives the opportuni-
ty to accomplish both the scientific researches, in par-
ticular study of material properties for nuclear power
plants, as well as the radiation processing.
Operating frequency and accelerating structure type
were chosen based on the available technological facili-
ties at NSC KIPT and the types of industrial klystrons
(operating frequency is 2856 МHz, output pulse power
is 5 МW and average power is to 36 kV). Accelerating
structure is based on the cylindrical disk-loaded wave-
guide. A choice of the specific configuration of this
waveguide is the results of simulations of section elec-
trodynamic properties and beam dynamic characteristics
[1].
The present paper is devoted to problems concerning
fabrication and initial tuning of section cells, brazing of
accelerating structure, vacuum testing, microwave
measurements tuning of accelerating structure and. It
should be noted that implementation of section tuning
and microwave measurements requires the improving of
the existing techniques with corresponding software and
development of a new special equipment.
1. FABRICATION AND VACUUM TESTING
Fabrication of an accelerating section of resonance
electron linac is rather complicated technological pro-
cess that requires high qualified personals and special
devices. Deep understanding of particle acceleration
physics and of the undesirable consequences caused by
some deviations in fabrication technology is the basis of
this process.
It should be noted that each period of the linac sec-
tions developed and fabricated in NSC KIPT consists of
ring and disk («disk-ring» technology). Sixteen ducts
for coolant flow are located at the periphery of the disks
and rings (Fig. 1) [2].
The whole section can be conventionally divided in-
to two parts: travelling wave buncher (20 cells) and the
main accelerating part (67 cells). To input and output
the microwave power, there are two couplers at the en-
trance and exit of the accelerating section respectively.
The travelling wave buncher parameters are significant-
ly inhomogeneous. Such inhomogeneity is caused by
the need of effective bunching: both the relative phase
velocity ph, and the accelerating wave amplitude А
should increase quite strongly (ph from 0.6 to 1 and А
from 3.38 tо 5.6 МV/m). To obtain the desired field
amplitude distribution in the buncher, transition of iris
radius from а = 16 mm to а = 14 mm is implemented
using three diaphragms. As to the accelerating part, its
geometrical dimensions vary quite smoothly in compar-
ison with the buncher (change of iris radius is about
60 µm per cell).
Fig. 1. Disks and rings of disk-loaded waveguide
In a first step of accelerating structure fabrication its
separate elements, namely: disks and rings, were fabri-
cated and preliminarily tuned. To realize the preliminar-
ily tuning, rings are made with a tolerance on radius.
The tuning is performed with special, so-called, π/2 cav-
ity stack (Fig. 2) [3]. If we remove the central cells
(cells are marked with a dashed line in Fig. 2) and com-
bine the remaining parts, then we get the elementary
stack consisting of three cells with three Е010 mode res-
onance frequencies. These frequencies equal to the fre-
quencies of 0, π/2 and π modes of periodic waveguide.
Elementary stack is tuned so that π/2 mode frequency is
equal to linac operating frequency with certain correc-
tion on vacuum, difference between tuning and operat-
ing temperature, braze influence and some frequency
reserve to the final tuning, the results of which are re-
ISSN 1562-6016. ВАНТ. 2016. №3(103) 39
ported in the fourth section of this article. In stack cen-
tral cell the amplitude of the longitudinal component of
the electrical field intensity on the axis is zero at π/2
mode. Completely assembled cavity stack has six reso-
nance frequencies. It can be shown that at the fourth
frequency we have the following field distribution. The
field in the cells which are under tuning (cells are
marked with a dashed line in Fig. 2) is the superposition
of the fields of two 2/3 travelling waves propagating in
opposite directions. The field in the adjusting cells is
practically equals to zero. At the first step two identical
cells are tuned. Their radii are changed so that the fourth
frequency of the cavity stack is equal to π/2 mode fre-
quency of elementary stack. Then cells are tuned suc-
cessively [3]. After tuning each ring and each disk has a
fixed position in the section.
Fig. 2. Field distribution in the π/2 cavity stack for cell
tuning (computer code SUPERFISH)
In NSC KIPT brazing of acceleration sections is per-
formed in vertical vacuum furnace with induction heat-
ing. The section prepared for brazing is moved in the
middle of the annular inductor. Because the maximum
value of this moving is limited by the value of 1 m, sec-
tion is divided into subsections. Each subsection con-
sists of nearly 20 cells.
Silver Braze 72 foil with a thickness of 50 m is
placed between each ring and disk. Using of three
guides to align disks and rings by the outer radius, sub-
section is assembled in the form of the vertical «sand-
wich». Then with the rod passed through central aper-
tures in the disks, subsection is contracted and loaded
into the furnace without guides. Vacuum system con-
sisting of the fore-vacuum, turbomolecular and ion
pumps allows obtaining a high vacuum in furnace
chamber. Heating temperature is measured with a py-
rometer. It is possible to observe visually the melting of
the braze. Since the melting point of the braze is well
known, this procedure is used for the initial calibration
of the pyrometer.
Each subsection is brazed a joint by a joint while
mowing inside inductor. Thus all four subsections were
brazed.
The details of the couplers (Fig. 3) are tuned and
then are brazed in vacuum furnace with electrical heat-
ing elements [4]. All the vacuum joints of brazed ele-
ments are checked for vacuum integrity on helium leak
detector (sensitivity on helium to 710
-13
m
3
P/s, Fig. 4).
Then input coupler is brazed to the first subsection in
induction furnace.
Second, third, fourth subsections and output coupler
are brazed to the first subsection consecutively.
Fig. 3. The details of input (top) and output (bottom)
couplers
Fig. 4. Vacuum testing of subsection on helium leak
detector
The process of loading of the fourth subsection into
the induction vacuum furnace is shown in Fig. 5.
After brazing and testing for vacuum integrity of the
whole structure, the section is mounted on the frame and
prepared for tuning measuring system.
ISSN 1562-6016. ВАНТ. 2016. №3(103) 40
Fig. 5. Loading of the fourth subsection into the induc-
tion vacuum furnace, subsection is in chamber (output
coupler is not brazed)
2. MEASURING SYSTEM
The measuring system used for experimental inves-
tigation of electrodynamic characteristics of accelerat-
ing section is based on the HP 8753C network analyzer
(Fig. 6, at the top). This analyzer has integrated synthe-
sized source of microwave power with a step by fre-
quency of 1 Hz in the range from 300 kHz to 3 GHz.
Dynamic accuracy of the receiver is not worse than
±0.05 dB by the amplitude and ±0.3 by the phase in the
range of the amplitudes more than 50 dB. The analyzer
exchanges the measurement data with a personal com-
puter (PC) via the GPIB protocol. Signals from the di-
rectional coupler (DC) connected to the accelerating
section (AS) are fed to the analyzer. This enables meas-
uring of complex coefficient of wave reflection from the
section. Matched load (ML) is placed at the exit of AS.
Measuring of reflection coefficient gives the opportuni-
ty to investigate a number of section characteristics par-
ticularly band pass characteristic, field attenuation, am-
plitude and phase distribution on the axis.
The system for measuring of the on axis field distri-
bution with the bead-pull techniques [5] was developed.
The alumina ceramic tube with the external diameter of
1.8 mm, the internal diameter of 0.5 mm and the
length of 5 mm is used as a bead. After the bead calibra-
tion in Е010 cavity we obtain the value of the formfactor
ke=1.0610
-19
m
2
s/Ω. For moving of the bead a stepping
motor (SM) with a step of 0.9 and driver which allows
the minimum rotation of the motor axis on 1/16 of the
step (bead linear displacement depends on the diameter
of the shaft on which filament is wound and in our case
it is equal to 16 µm) are used.
Driver is controlled by a microcontroller STM32F3
(CSM) via the commands interchange with PC through
USB port. The design of developed and fabricated sys-
tem of bead moving (see Fig. 6, at the bottom) prevents
the filament displacement in perpendicular to main
moving direction and allows to move the bead over long
distances quickly enough. Moreover the fabricated sys-
tem allows to conduct the measurements only in the
centers of the cells, that accelerates the process of sec-
tion tuning significantly. In general the developed soft-
ware realizes three operating modes: measuring at a
given step of field distribution in the whole section;
measuring of the field in the centers of the cells along
the whole section or the part of the section; tuning
mode, when the fields are measured in the middle of the
cell under tuning and fourth adjacent ones.
Fig. 6. Layout of measuring system of section character-
istics (top) and the system for bead moving (bottom)
It should be noted that measuring of section charac-
teristics is conducted under conditions which are differ-
ent from operating ones: section is not evacuated and
the operating temperature is not supported. So each
measurement session is accomplished by frequency re-
calculation with taking into account the corrections on
vacuum and temperature variance [6]. It is assumed that
condition of thermal equilibrium between the section
and the surrounding space is fulfilled, that is the tem-
perature of the section is equal to the temperature of the
air. The problem is in the fact that environmental condi-
tions can arbitrarily vary during the measurement ses-
sion. To improve the accuracy of the measurement re-
sults, the following method of correcting is used. Unper-
turbed reflection coefficient (bead is beyond the section)
is measured at the start and at the end of measuring ses-
sion. Difference in these values of reflection coefficient
indicates a specific changing of the environmental con-
ditions. As we obtain two values of unperturbed reflec-
tion coefficient, so we can implement only a linear cor-
rection of the results supposing that environmental con-
ditions vary linearly with time. The effect of using of
the correction method due to the changing of environ-
mental conditions is shown in Fig. 7.
ISSN 1562-6016. ВАНТ. 2016. №3(103) 41
Fig. 7. Field amplitude distribution at the section exit:
the method of correcting of environmental conditions
is used (blue curve) and it is not used (green curve)
As it is evident from the field amplitude distribu-
tions in Fig. 7 (near Z = 3100 mm), mentioned above
method increases the measuring range at least by five
times.
It is obvious that random errors can have a signifi-
cant effect on the measurement results. To answer this
question, measuring of field distribution in the section
was conducted repeatedly. Results are shown in Fig. 8.
At the exit of the section errors are less than errors at the
section entrance due to increasing of the field. Respec-
tively, in the initial part of the section the errors are
more considerable. Repeatability of measurement re-
sults of field amplitude and phase is fairly good. In the
main part of the section relative rms deviation of the
amplitude (4) does not exceed ±1%, and rms deviation
of the phase is less than (4) ±1.
0 20 40 60 80 100
0
0.2
0.4
0.6
0.8
1
1.2
1.4
Cell No.
A
,
(%
)
(
)
A
Fig. 8. Rms spread of amplitude and phase of the field
in the section cells from six measurements
Therefore one can conclude that the measuring sys-
tem used for the investigation of accelerating section
electrodynamic characteristics provides high reliability
of the experimental data.
3. TUNING AND EXPERIMENTAL
RESULTS
The developed tuning technique is based on some
modification of the approaches outlined in [7 - 12]. To
tune the cell, the structure on axis complex fields are
determined in three consecutive cells (cell under tuning
and two adjacent ones). The following expression is
used:
( ) ( )
2 ( )
c c
c
E z D E z D
S
E z
, (1)
where D is the distance between the centers of the adja-
cent cells, Ес(z) is the on axis complex field at the point
with coordinate z.
Let’s consider the Eq. (1). In tuned periodic struc-
ture field amplitudes in all cells are equal,
( )cE z D = ( )cE z = ( )cE z D , and phase shift per
cell is constant, arg ( )cE z – arg ( )cE z D =
= arg ( )cE z D – arg ( )cE z = . In this case we have
S cos. Suppose, that field amplitude distribution in
tuned inhomogeneous structure has the form
( )cE z D = ( )cE z and ( )cE z D = ( )cE z ,
where , 0 corresponds to the increasing field dis-
tribution and , 0 to the decreasing one. At the
operating frequency phase shift per cell is constant, .
Then we obtain
cos 1 sin
2 ( ) 2 ( )c c
S i
E z E z
. (2)
In this case S has a complex value. However if the
field amplitudes change evenly, , and weakly,
( ) 1cE z , the following conditions are fulfilled: the
real part of S Re(S) = cos and the imaginary part of S
Im(S) 1 . In this case for 2π/3 section a criterion of
tuning is Re(S) –0.5 but if the condition
Re(S) = –0.5 does not correspond to = 2π/3.
It should be noted that analysis of section tuning is
resulted in more depth investigation of the problems of
inhomogeneous section tuning [13 - 15].
Field distribution in the untuned section at the oper-
ating frequency is shown in Fig. 9. Despite the prelimi-
nary tuning of the cells, there are reflections in different
parts of the section. It should be noted that phase ad-
vance per cell is negative because we measure the re-
flected wave that propagates in opposite to accelerating
wave direction. The largest deviations of phase advance
per і
th
section cell from -120 ( = і+1 – і + 120)
are observed in the couplers. These deviations are ex-
pected since couplers are not the section regular cells.
Tuning of the section is achieved in several stages.
After the preliminary tuning of the cells (π/2 cavity
stack) the cell rings have been slightly oversized assum-
ing possibility to rise its frequencies by some defor-
mations of the sidewalls through special bore recess (see
the ring sidewalls in Fig. 1 and Fig. 3). At the first tun-
ing stage the frequency with the closest approach of
average phase shift per cell to -120 has been deter-
mined. In our case this frequency is 2855 МHz. At this
frequency the dependence of S on the cell number is
maximally aligned. For the adjacent cells with values of
S highly differ in opposite directions from -0.5 that val-
ues are corrected by disk deflection. Disk is deflected
towards the cell with Re(S) > -0.5. Further the internal
wall of the cell with Re(S) < -0.5 is deformed so that
Re(S) = -0.5±0.005. At the following stages of tuning
last procedure is repeated for several frequencies (with a
2800 2900 3000 3100 3200
Z (mm)
E
z
(
a
rb
.
u
n
it
s
)
u
n
it
s
)
0.02
0.04
0.06
0.08
0.1
0.16
0
0.12
0.14
ISSN 1562-6016. ВАНТ. 2016. №3(103) 42
step about of 300 kHz) until the operating frequency is
reached. Field distribution in the section after tuning is
shown in Fig. 10.
0 20 40 60 80 100
-30
-20
-10
0
10
20
30
40
Cell No.
(
)
Fig. 9. Field distribution in the section before tuning
-20 0 20 40 60 80 100
0
0.05
0.1
0.15
0.2
Cell No.
E
z
(
a
rb
.
u
n
it
s
)
2856
0 20 40 60 80 100
-20
-15
-10
-5
0
5
10
15
Cell No.
(
)
Fig. 10. Field distribution in the section after tuning
At developing travelling wave accelerating sections
one of the most important problems is the accordance of
really obtained characteristics with simulated ones. Es-
pecially it concerns sections with large inhomogeneity.
It is seen in Fig. 11 that the measured and calculated on
axis field amplitudes coincide well enough in the begin-
ning of the section. Power of microwave supply is
P0=4.6 МW in the experiment and simulation. The max-
imum difference of the field amplitudes is 9.4% in the
seventh cell. The difference is well within that value for
the whole section.
250 300 350 400 450
0
1
2
3
4
5
6
7
Z (mm)
E
z
(
M
V
/m
)
Fig. 11. On axis field amplitude distribution in the ini-
tial part of the section: experiment (green curve)
and simulation (blue curve)
The voltage standing wave ratio (VSWR) in the fre-
quency range 2853…2858 МHz is shown in Fig. 12.
According to the technical specifications of the klystron
the VSWR values should not exceed 1.5 that is per-
formed in our case.
2853 2854 2855 2856 2857 2858
1
1.05
1.1
1.15
1.2
1.25
F (MHz)
V
S
W
R
Fig. 12. Bandpass characteristic of the section near
the operating frequency 2856 МHz
The value of group velocity has theoretical and prac-
tical significance. The specific value of group velocity
substantiates the credibility of mathematical models
used for simulation of inhomogeneous section. In prac-
tice the value of group velocity results in restrictions
concerned with the pulse regime operation. Almost all
the filling time of the section that depends on the group
velocity falls out of useful operating time because of
large energy spread of electrons. Furthermore too short
rise time of the RF pulse as compared to section filling
time can results in waveguide breakdowns.
As well known the relative group velocity g is de-
fined as the derivative of the dispersion
curve: g gv c , gv d dk , where с is the velocity of
light, is the circular frequency, k is the wave num-
ber. It can be shown that 0120g F F , where
F is the linear frequency band around the operating
frequency F0, is the deviation of phase advance
averaged over section cells from 120 in the correspond-
ing frequency band F . Measuring the field distribu-
-20 0 20 40 60 80 100
Cell No.
E
z
(
a
rb
.
u
n
it
s
)
2855.975
0.14
0.12
0.1
0.08
0.06
0.04
0.02
0
ISSN 1562-6016. ВАНТ. 2016. №3(103) 43
tion in the section, we have obtained the required de-
pendence that is shown in Fig. 13. Phase shifts in cou-
plers and adjacent cells are not counted since the fields
in these cavities are perturbed by section ends. We ob-
tain the following value of average group velocity
2.67g %. It is negative because we measure the
reflected wave that propagates in opposite to accelerat-
ing wave direction as it was mentioned above.
-4 -2 0 2 4 6
2853
2854
2855
2856
2857
2858
()
F
(
M
H
z
)
Рис. 13. Dispersion curve near the operating frequency
Knowing the group velocity one can obtain the fill-
ing time: 366gL v ns, where L is the section length,
which is considered when Fig. 13 is plotted.
Attenuation is another one important characteristic
of the section. There is known procedure measuring
attenuation of a two-port network. A movable shorting
plunger is connected to the second port while return
losses S11 is measured at the firs port. Because of imper-
fection matching of the network and network analyzer
S11 varies with the plunger moving due to resonance
properties of the network. To diminish such measure-
ment errors S11 is arithmetic mean between those maxi-
mal and minimal values and attenuation is a half of S11
because the wave attenuates twice. Due to design fea-
tures of the section output waveguide it is inconvenient
to replace the matched load with the movable shorting
plunger at this stage of section manufacturing. Thus we
put the plunger in the output coupler. Dependence of S11
on the frequency is shown in Fig. 14. There are a local
maximum of reflection at the operating frequency and
two local minimums of reflection nearby. The average
value between the local maximum and the left local
minimum is -4.65 dB. The average value between the
local maximum and the right local minimum is -
4.53 dB. Similarly with the above one can estimate the
following values of attenuation: 0.261 Np and 0.269 Np,
accordingly. The average of these values of 0.264 Np is
good choice for estimated attenuation. The calculated
value of attenuation is 0.247 Np [1], so the difference
between the measured and calculated value is 6.7%.
Such correspondence is very good.
Measured and calculated values of section parame-
ters are contained in Table. Comparing the values in
second and third columns of Table, one can conclude
that measurement results are in good agreement with
calculated ones.
The photo of the section after measurements is
shown in Fig. 15. Presently the section is under vacuum
and is ready to be installed on the frame of the linac.
2853 2854 2855 2856 2857 2858
-6
-5.5
-5
-4.5
-4
-3.5
X: 2855
Y: -4.962
X: 2856
Y: -4.342
F (MHz)
S
1
1
(
d
B
)
X: 2857
Y: -4.723
Fig. 14. Dependence of reflection coefficient
vs frequency when plunger is in the output coupler
Characteristics of accelerating section
Parameter
Meas-
ured
Simulat-
ed
Operating frequency, MHz 2856 2856
Operating temperature,
degr,°С
40
40
Average phase shift per cell,
degr.
120
120
The rms deviation of phase
advance from 120, degr.
2
–
VSWR at the operating
frequency
1.09
<1.01
VSWR in the frequency
band 2853…2858 MHz
<1.25
<1.1
Total length, m 3.105 3.105
Filling time, ns 366 385
Attenuation, Np 0.261 0.247
Fig. 15. Photo of the section on the frame
(section is under vacuum)
CONCLUSIONS
The accelerating section of the electron linac with
the energy to 10 MeV and average beam power to
20 kW has been fabricated. Electrodynamic characteris-
tics of the section were investigated experimentally. It
was shown that measurement results are in good agree-
ment with calculated ones. The developed and fabricat-
ed accelerating section satisfies specifications of the
linac designed.
ISSN 1562-6016. ВАНТ. 2016. №3(103) 44
REFERENCES
1. M.I. Ayzatskiy, А.N. Dovbnya, et al. Accelerating
system for an industrial linac // Problems of Atomic
Science and Technology. Series “Nuclear Physics
Investigations”. 2012, № 4, p. 24-28.
2. V.F. Zhiglo, V.A. Kushnir, et al. Cooling system for
the LU-10 accelerating section // Problems of Ato-
mic Science and Technology. Series “Nuclear Phys-
ics Investigations”. 2015, № 6, p. 18-22.
3. M.I. Ayzatsky, E.Z. Biller. Development of inho-
mogeneous disk-loaded accelerating waveguides and
rf-coupling // Proc. of Linear Accelerator Conf.
1996, p. 119-121.
4. N.I. Аizatskyi, K.Yu. Kramarenko, et al. On a meth-
od of tuning of couplers for electron linacs based on
disk loaded waveguides // Problems of Atomic Sci-
ence and Technology. Series “Nuclear Physics In-
vestigations”. 2015, № 6, p. 8-12.
5. Charles W. Steele. A nonresonant perturbation theo-
ry // IEEE Trans. on microwave theory and tech-
niques. 1966, v. 14, № 2, p. 70-74.
6. Handbook of the electrotechnical materials / Edited
by K.А. Аndrianova, et al. M.-L.: GEI, 1958, v. 1.
7. T. Khabiboulline, V. Puntus, et al. A new tuning
method for travelling wave structures // Proc. of
Particle Accelerator Conf. 1995, p. 1666-1668.
8. J. Shi, A. Grudiev, et al. Tuning of CLIC Accelerat-
ing Structure Prototypes at CERN // Proc. of Linear
Accelerator Conf. 2010, p. 97-99.
9. N.M. Kroll, C.-K. Ng, D.C. Vier. Applications of
time domain simulation to coupler design for period-
ic structures // Proc. of Linear Accelerator Conf.
2000, p. 614-617.
10. W.C. Fang, Z.T. Zhao, et al. R&D of C-band accel-
erating structure at SINAP // Proc. of Linear Accel-
erator Conf. 2010, p. 199-201.
11. D Alesini, A Citterioc, et al. Tuning procedure for
traveling wave structures and its application to the
C-Band cavities for SPARC photo injector energy
upgrade // Journal of Instrumentation. 2013, v. 8,
p. 1-18.
12. W.C. Fang, Q. Gu, et al. The nonresonant perturba-
tion theory based field measurement and tuning of a
linac accelerating structure // Proc. of Linear Accel-
erator Conf. 2012, p. 375-375.
13. M.I. Ayzatsky, V.V. Mytrochenko. Electromagnetic
fields in nonuniform disk-loaded waveguide.
ArXiv:1503.05006 [physics.acc-ph]. 2015, 19 p.
14. M.I. Ayzatsky, V.V. Mytrochenko. Coupled cavity
model based on the mode matching technique.
ArXiv:1505.03223 [physics.acc-ph]. 2015, 12 p.
15. M.I. Ayzatsky, V.V. Mytrochenko. Coupled cavity
model for disc-loaded waveguides. ArXiv:
1511.03093 [physics.acc-ph]. 2015, 26 p.
Article received 03.03.2016
УСКОРЯЮЩАЯ СЕКЦИЯ ТЕХНОЛОГИЧЕСКОГО ЛИНЕЙНОГО УСКОРИТЕЛЯ ЭЛЕКТРОНОВ
Н.И. Айзацкий, Е.З. Биллер, А.Н. Довбня, Е.Ю. Крамаренко, И.В. Ходак, В.А. Кушнир,
В.В. Митроченко, Т.Ф. Никитина, А.Н. Опанасенко, С.А. Пережогин, Д.Л. Стёпин,
Л.И. Селиванов, В.Ф. Жигло
Приведены параметры конструкции и результаты исследования электродинамических характеристик
ускоряющей секции с набегом фазы 120° на рабочей частоте 2856 МГц, предназначенной для модернизации
ускорителя электронов ЛУ-10 ННЦ ХФТИ. Полученные экспериментальные данные сравниваются с расчёт-
ными.
ПРИСКОРЮВАЛЬНА СЕКЦІЯ ДЛЯ ТЕХНОЛОГІЧНОГО ЛІНІЙНОГО ПРИСКОРЮВАЧА
ЕЛЕКТРОНІВ
M.I. Aйзацький, Є.З. Біллер, A.M. Довбня, К.Ю. Крамаренко, І.В. Ходак, В.А. Кушнір, В.В. Митроченко,
Т.Ф. Нікітіна, A.M. Опанасенкo, С.A. Пережогін, Д.Л. Стьопін, Л.I. Селіванов, В.Ф. Жигло
Наведено параметри конструкції і результати дослідження електродинамічних характеристик прискорю-
вальної секції з набігом фази 120° на робочій частоті 2856 МГц, яка призначена для модернізації прискорю-
вача електронів ЛУ-10 ННЦ ХФТІ. Отримано експериментальні дані, які порівнюються з розрахунковими.
|
| id | nasplib_isofts_kiev_ua-123456789-115355 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1562-6016 |
| language | English |
| last_indexed | 2025-12-07T17:31:35Z |
| publishDate | 2016 |
| publisher | Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| record_format | dspace |
| spelling | Ayzatsky, M.I. Biller, E.Z. Dovbnya, A.N. Kramarenko, K.Yu. Khodak, І.V. Kushnir, V.A. Mytrochenko, V.V. Nikitina, T.Ph. Opanasenko, A.M. Perezhogin, S.A. Stepin, D.L. Selivanov, L.I. Zhiglo, V.Ph. 2017-04-03T11:09:04Z 2017-04-03T11:09:04Z 2016 Accelerating section for technological electron linac / M.I. Ayzatsky, E.Z. Biller, A.N. Dovbnya, K.Yu. Kramarenko, І.V. Khodak, V.A. Kushnir,
 V.V. Mytrochenko, T.Ph. Nikitina, A.M. Opanasenko, S.A. Perezhogin, D.L. Stepin,
 L.I. Selivanov, V.Ph. Zhiglo // Вопросы атомной науки и техники. — 2016. — № 3. — С. 38-44. — Бібліогр.: 15 назв. — англ. 1562-6016 PACS: 29.20.Ej https://nasplib.isofts.kiev.ua/handle/123456789/115355 The construction parameters and electrodynamic characteristics of the accelerating section with phase advance of
 120° at the operating frequency of 2856 MHz are presented. This section is designed to upgrade the electron LINAC
 LU-10 at NSC KIPT. Experimental results are compared with calculated ones. Приведены параметры конструкции и результаты исследования электродинамических характеристик
 ускоряющей секции с набегом фазы 120° на рабочей частоте 2856 МГц, предназначенной для модернизации
 ускорителя электронов ЛУ-10 ННЦ ХФТИ. Полученные экспериментальные данные сравниваются с расчётными. Наведено параметри конструкції і результати дослідження електродинамічних характеристик прискорювальної секції з набігом фази 120° на робочій частоті 2856 МГц, яка призначена для модернізації прискорювача електронів ЛУ-10 ННЦ ХФТІ. Отримано експериментальні дані, які порівнюються з розрахунковими. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Теория и техника ускорения частиц Accelerating section for technological electron linac Ускоряющая секция технологического линейного ускорителя электронов Прискорювальна секція для технологічного лінійного прискорювача електронів Article published earlier |
| spellingShingle | Accelerating section for technological electron linac Ayzatsky, M.I. Biller, E.Z. Dovbnya, A.N. Kramarenko, K.Yu. Khodak, І.V. Kushnir, V.A. Mytrochenko, V.V. Nikitina, T.Ph. Opanasenko, A.M. Perezhogin, S.A. Stepin, D.L. Selivanov, L.I. Zhiglo, V.Ph. Теория и техника ускорения частиц |
| title | Accelerating section for technological electron linac |
| title_alt | Ускоряющая секция технологического линейного ускорителя электронов Прискорювальна секція для технологічного лінійного прискорювача електронів |
| title_full | Accelerating section for technological electron linac |
| title_fullStr | Accelerating section for technological electron linac |
| title_full_unstemmed | Accelerating section for technological electron linac |
| title_short | Accelerating section for technological electron linac |
| title_sort | accelerating section for technological electron linac |
| topic | Теория и техника ускорения частиц |
| topic_facet | Теория и техника ускорения частиц |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/115355 |
| work_keys_str_mv | AT ayzatskymi acceleratingsectionfortechnologicalelectronlinac AT billerez acceleratingsectionfortechnologicalelectronlinac AT dovbnyaan acceleratingsectionfortechnologicalelectronlinac AT kramarenkokyu acceleratingsectionfortechnologicalelectronlinac AT khodakív acceleratingsectionfortechnologicalelectronlinac AT kushnirva acceleratingsectionfortechnologicalelectronlinac AT mytrochenkovv acceleratingsectionfortechnologicalelectronlinac AT nikitinatph acceleratingsectionfortechnologicalelectronlinac AT opanasenkoam acceleratingsectionfortechnologicalelectronlinac AT perezhoginsa acceleratingsectionfortechnologicalelectronlinac AT stepindl acceleratingsectionfortechnologicalelectronlinac AT selivanovli acceleratingsectionfortechnologicalelectronlinac AT zhiglovph acceleratingsectionfortechnologicalelectronlinac AT ayzatskymi uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT billerez uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT dovbnyaan uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT kramarenkokyu uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT khodakív uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT kushnirva uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT mytrochenkovv uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT nikitinatph uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT opanasenkoam uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT perezhoginsa uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT stepindl uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT selivanovli uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT zhiglovph uskorâûŝaâsekciâtehnologičeskogolineinogouskoritelâélektronov AT ayzatskymi priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT billerez priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT dovbnyaan priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT kramarenkokyu priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT khodakív priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT kushnirva priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT mytrochenkovv priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT nikitinatph priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT opanasenkoam priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT perezhoginsa priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT stepindl priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT selivanovli priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív AT zhiglovph priskorûvalʹnasekcíâdlâtehnologíčnogolíníinogopriskorûvačaelektronív |