Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC
New pre-stripping section (PSS-20) consists of two parts with diverse accelerating structures. On an initial part of acceleration of ions from 6 up to 150 keV/nucl. high capture in process of acceleration of the injected ions is provided interdigital (IH) accelerating structure with Radio-Frequency...
Gespeichert in:
| Veröffentlicht in: | Вопросы атомной науки и техники |
|---|---|
| Datum: | 2014 |
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2014
|
| Schlagworte: | |
| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/79984 |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC / V.O. Bomko, B.V. Zajtsev, A.P. Kobets, K.V. Pavlii, V.V. Panov // Вопросы атомной науки и техники. — 2014. — № 3. — С. 20-23. — Бібліогр.: 11 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-79984 |
|---|---|
| record_format |
dspace |
| spelling |
Bomko, V.O. Zajtsev, B.V. Kobets, A.P. Pavlii, K.V. Panov, V.V. 2015-04-09T13:57:55Z 2015-04-09T13:57:55Z 2014 Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC / V.O. Bomko, B.V. Zajtsev, A.P. Kobets, K.V. Pavlii, V.V. Panov // Вопросы атомной науки и техники. — 2014. — № 3. — С. 20-23. — Бібліогр.: 11 назв. — англ. 1562-6016 PACS: 29.17.w https://nasplib.isofts.kiev.ua/handle/123456789/79984 New pre-stripping section (PSS-20) consists of two parts with diverse accelerating structures. On an initial part of acceleration of ions from 6 up to 150 keV/nucl. high capture in process of acceleration of the injected ions is provided interdigital (IH) accelerating structure with Radio-Frequency Quadrupole (RFQ) focusing. On the second part of acceleration of ions from 150 keV/nucl. up to 1 MeV/nucl. the highest rate of acceleration is created interdigital (IH) accelerating structure DTL. The problem of diverse accelerating structures combination in one resonator is set. Новая предобдирочная секция ПОС-20 состоит из двух участков с разнородными ускоряющими структурами. На начальном участке ускорения ионов от 6 до 150 кэВ/нукл. высокий захват в процесс ускорения обеспечивает встречно-штыревая ускоряющая структура с RFQ. На втором участке ускорения ионов от 150 кэВ/нукл. до 1 МэВ/нукл. высокий темп ускорения создаёт встречно-штыревая ускоряющая структура DTL. Поставлена задача совмещения таких разнородных ускоряющих структур в одном резонаторе. Нова передобдиркова секція ПОС-20 складається із двох ділянок з різнорідними прискорюючими струк-турами. На початковій ділянці прискорення іонів від 6 до 150 кеВ/нукл. високе захоплення в процес прискорення забезпечує зустрічно-штирьова прискорююча структура з RFQ. На другій ділянці прискорення іонів від 150 кеВ/нукл. до 1 МеВ/нукл. високий темп прискорення створює зустрічно-штирьова прискорююча структура DTL. Поставлено завдання суміщення таких різнорідних прискорюючих структур в одному резонаторі. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Теория и техника ускорения частиц Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC Совмещение участков ускоряющих структур c RFQ и DTL в одном резонаторе предобдирочной секции линейного ускорителя лумзи Суміщення ділянок прискорюючих структур з RFQ та DTL в одному резонаторі передобдиркової секції лінійного прискорювача лумзі Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC |
| spellingShingle |
Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC Bomko, V.O. Zajtsev, B.V. Kobets, A.P. Pavlii, K.V. Panov, V.V. Теория и техника ускорения частиц |
| title_short |
Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC |
| title_full |
Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC |
| title_fullStr |
Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC |
| title_full_unstemmed |
Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC |
| title_sort |
coupling of parts accelerating structures rfq and dtl in one resonator prestripping section the heavy ion linear accelerator milac |
| author |
Bomko, V.O. Zajtsev, B.V. Kobets, A.P. Pavlii, K.V. Panov, V.V. |
| author_facet |
Bomko, V.O. Zajtsev, B.V. Kobets, A.P. Pavlii, K.V. Panov, V.V. |
| topic |
Теория и техника ускорения частиц |
| topic_facet |
Теория и техника ускорения частиц |
| publishDate |
2014 |
| language |
English |
| container_title |
Вопросы атомной науки и техники |
| publisher |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| format |
Article |
| title_alt |
Совмещение участков ускоряющих структур c RFQ и DTL в одном резонаторе предобдирочной секции линейного ускорителя лумзи Суміщення ділянок прискорюючих структур з RFQ та DTL в одному резонаторі передобдиркової секції лінійного прискорювача лумзі |
| description |
New pre-stripping section (PSS-20) consists of two parts with diverse accelerating structures. On an initial part of acceleration of ions from 6 up to 150 keV/nucl. high capture in process of acceleration of the injected ions is provided interdigital (IH) accelerating structure with Radio-Frequency Quadrupole (RFQ) focusing. On the second part of acceleration of ions from 150 keV/nucl. up to 1 MeV/nucl. the highest rate of acceleration is created interdigital (IH) accelerating structure DTL. The problem of diverse accelerating structures combination in one resonator is set.
Новая предобдирочная секция ПОС-20 состоит из двух участков с разнородными ускоряющими структурами. На начальном участке ускорения ионов от 6 до 150 кэВ/нукл. высокий захват в процесс ускорения обеспечивает встречно-штыревая ускоряющая структура с RFQ. На втором участке ускорения ионов от 150 кэВ/нукл. до 1 МэВ/нукл. высокий темп ускорения создаёт встречно-штыревая ускоряющая структура DTL. Поставлена задача совмещения таких разнородных ускоряющих структур в одном резонаторе.
Нова передобдиркова секція ПОС-20 складається із двох ділянок з різнорідними прискорюючими струк-турами. На початковій ділянці прискорення іонів від 6 до 150 кеВ/нукл. високе захоплення в процес прискорення забезпечує зустрічно-штирьова прискорююча структура з RFQ. На другій ділянці прискорення іонів від 150 кеВ/нукл. до 1 МеВ/нукл. високий темп прискорення створює зустрічно-штирьова прискорююча структура DTL. Поставлено завдання суміщення таких різнорідних прискорюючих структур в одному резонаторі.
|
| issn |
1562-6016 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/79984 |
| citation_txt |
Coupling of parts accelerating structures RFQ and DTL in one resonator prestripping section the heavy ion linear accelerator MILAC / V.O. Bomko, B.V. Zajtsev, A.P. Kobets, K.V. Pavlii, V.V. Panov // Вопросы атомной науки и техники. — 2014. — № 3. — С. 20-23. — Бібліогр.: 11 назв. — англ. |
| work_keys_str_mv |
AT bomkovo couplingofpartsacceleratingstructuresrfqanddtlinoneresonatorprestrippingsectiontheheavyionlinearacceleratormilac AT zajtsevbv couplingofpartsacceleratingstructuresrfqanddtlinoneresonatorprestrippingsectiontheheavyionlinearacceleratormilac AT kobetsap couplingofpartsacceleratingstructuresrfqanddtlinoneresonatorprestrippingsectiontheheavyionlinearacceleratormilac AT pavliikv couplingofpartsacceleratingstructuresrfqanddtlinoneresonatorprestrippingsectiontheheavyionlinearacceleratormilac AT panovvv couplingofpartsacceleratingstructuresrfqanddtlinoneresonatorprestrippingsectiontheheavyionlinearacceleratormilac AT bomkovo sovmeŝenieučastkovuskorâûŝihstrukturcrfqidtlvodnomrezonatorepredobdiročnoisekciilineinogouskoritelâlumzi AT zajtsevbv sovmeŝenieučastkovuskorâûŝihstrukturcrfqidtlvodnomrezonatorepredobdiročnoisekciilineinogouskoritelâlumzi AT kobetsap sovmeŝenieučastkovuskorâûŝihstrukturcrfqidtlvodnomrezonatorepredobdiročnoisekciilineinogouskoritelâlumzi AT pavliikv sovmeŝenieučastkovuskorâûŝihstrukturcrfqidtlvodnomrezonatorepredobdiročnoisekciilineinogouskoritelâlumzi AT panovvv sovmeŝenieučastkovuskorâûŝihstrukturcrfqidtlvodnomrezonatorepredobdiročnoisekciilineinogouskoritelâlumzi AT bomkovo sumíŝennâdílânokpriskorûûčihstrukturzrfqtadtlvodnomurezonatoríperedobdirkovoísekcíílíníinogopriskorûvačalumzí AT zajtsevbv sumíŝennâdílânokpriskorûûčihstrukturzrfqtadtlvodnomurezonatoríperedobdirkovoísekcíílíníinogopriskorûvačalumzí AT kobetsap sumíŝennâdílânokpriskorûûčihstrukturzrfqtadtlvodnomurezonatoríperedobdirkovoísekcíílíníinogopriskorûvačalumzí AT pavliikv sumíŝennâdílânokpriskorûûčihstrukturzrfqtadtlvodnomurezonatoríperedobdirkovoísekcíílíníinogopriskorûvačalumzí AT panovvv sumíŝennâdílânokpriskorûûčihstrukturzrfqtadtlvodnomurezonatoríperedobdirkovoísekcíílíníinogopriskorûvačalumzí |
| first_indexed |
2025-11-25T03:54:19Z |
| last_indexed |
2025-11-25T03:54:19Z |
| _version_ |
1850505788866428928 |
| fulltext |
ISSN 1562-6016. ВАНТ. 2014. №3(91) 20
COUPLING OF PARTS ACCELERATING STRUCTURES RFQ AND DTL
IN ONE RESONATOR PRESTRIPPING SECTION THE HEAVY ION
LINEAR ACCELERATOR MILAC
V.O. Bomko, B.V. Zajtsev, A.P. Kobets, K.V. Pavlii, V.V. Panov
National Science Center “Kharkov Institute of Physics and Technology”, Kharkov, Ukraine
E-mail: kobets@kipt.kharkov.ua
New pre-stripping section (PSS-20) consists of two parts with diverse accelerating structures. On an initial part
of acceleration of ions from 6 up to 150 keV/nucl. high capture in process of acceleration of the injected ions is pro-
vided interdigital (IH) accelerating structure with Radio-Frequency Quadrupole (RFQ) focusing. On the second part
of acceleration of ions from 150 keV/nucl. up to 1 MeV/nucl. the highest rate of acceleration is created interdigital
(IH) accelerating structure DTL. The problem of diverse accelerating structures combination in one resonator is set.
PACS: 29.17.w
INTRODUCTION
The heavy ion linear accelerator MILAC has started
to operate in 1958. Throughout the next years on it were
carried out scientific and applied researches on a nuclear
physics of heavy ions. On the basis of new achieve-
ments to fields of physics and technics of linacs were
constantly spent reconstruction accelerator systems. In
this time almost all basic systems of the accelerating
complex MILAC have been exchanged or reconstruct-
ed. The most important were operations on replacement
of accelerating structures Alvarez type (Е010-wave) on
the developed interdigital (IH) accelerating structure
(Н110-wave) [1, 2, 3]. Feature interdigital (IH) accelerat-
ing structure was possibility of magnification of a work-
ing wave length three times, from 2.12 m to 6.36 m and
magnifications of rate of acceleration twice. Thus the
length of the main section of MS-5 of accelerator
MILAC was reduced with 18 m to 12 m at the almost
same output energy of the accelerated ions
8.5 MeV/nucl. The quantity of drift tubes the main sec-
tion has decreased with 100 to 40, and the length of new
drift tubes has allowed to dispose in them focalizing
electromagnetic quadrupole lenses [4]. A new prestrip-
ping section PSS-15 has been created that has allowed
to extend a range of ions with mass to charge ratio
A/q≤15 [5]. The new system of injection calculated on
formation of more intensive beams of heavy ions with
energy 30 keV/nucl., arriving on prestripping section
PSS-15 has been created. New high-frequency genera-
tors with pulse power more 3 MW, and also a new con-
trol system have been created.
Now heavy ion linear accelerator MILAC allows to
accelerate ions He +, N +, Ne2 +, Ar3 + and other ions with
mass to charge ratio A/q≤15. After acceleration in
prestripping section PSS-15 to energy 975 keV/nucl.
ions are exposed to stripping on a thin carbon film, their
charge is incremented and heavy ions are accelerated in
the main section MS-5 to energy 8.5 MeV/nucl. Intensi-
ty accelerated to such energies of ions beams makes
109…1010 p/s and essentially decreases for ions with
mass number A > 50.
The problem of making new prestripping section
PSS-20 which will allow to dilate considerably a gamut
of masses of accelerated ions is put and to increment by
two orders intensity of a current of the accelerated ions
beams, before 1012…1013p/s. For the solution of this
problem it is supposed to use a variant of coupling of
two diverse accelerating sites RFQ and DTL in one res-
onator. It will give the chance to simplify a construction
prestripping section and considerably to lower cost PSS-
20 at the expense of use of the available equipment and
the existing restricted areas, and as considerably to sim-
plify manufacturing and operation new prestripping
section PSS-20.
MAIN PARAMETERS OF SITES OF
ACCELERATING STRUCTURES RFQ AND
DTL FOR PRESTRIPPING SECTION PSS-20
As a result of investigations on working out of ac-
celerating structure new prestripping section PSS-20 for
linac MILAC are created backgrounds for its construc-
tion. The design procedure of parametres of two sites
interdigital (IH) accelerating structure, based on Radio-
Frequency Quadrupole focusing (RFQ) and structure
with drift tubes (DTL) is developed. These two struc-
tures provide both effective formation of heavy ions
beams and high rate of acceleration, that will allow on
the existing area with restricted length nearby 9 m to
accelerate heavy ions with mass to charge ratio A/q≤20
to energy 1 MeV/nucl.
On the basis of the created procedures and new pro-
grams calculations of geometrical and electrodynamic
parameters for PSS-20 are executed. Optimisation of the
basic performances of accelerating structure taking into
account concrete requirements of its construction is ex-
ecuted. In the course of calculations of a site accelerat-
ing structure RFQ such parameters, as efficiency of ac-
celeration Tn, energy gain on each cell ΔWn, the rela-
tive velocity of ions βn, length of cells Ln, a synchro-
nous phase φS, extent of bunch Fn, a modulation coeffi-
cient mn, aperture radius αn, defocusing parameter Δn,
the factor of focusing Bn, total length of structure zn are
spotted. Main parameters of accelerating structure RFQ
for PSS-20 depending on the cell number are given on
Fig. 1.
Calculations of beam dynamics on site RFQ are exe-
cuted. Result of calculations are given in [6 - 8]. It is as
a result shown that injected ions with energy
6 keV/nucl. in the course of acceleration to energy
150 keV/nucl. are generated in compact bunch in the
extent about Ф=20○ with transmission of 91% and ener-
gy straggling ΔW/W=±2%.
ISSN 1562-6016. ВАНТ. 2014. №3(91) 21
Fig. 1. Main parameters of accelerating structure RFQ
for PSS-20
Quantities of the given emittance are in limits 0.4 π
mm mrad. The radius of ions beam on exit structure
RFQ is in limits ±3 mm (Fig. 2), in Fig. 3 the beam pro-
file at exit of RFQ are given.
Fig. 2. The radius of ions beam on exit structure RFQ
Fig. 3. The beam profile at exit of RFQ
Thus it is shown that accelerating structure RFQ
prestripping section PSS-20 has geometrical and elec-
trodynamic characteristics which provide effective pro-
cess of acceleration of heavy ions of a wide gamut of
masses and high current intensity of the accelerated
beam.
Presence of site RFQ simplifies a problem of the fur-
ther acceleration of ions with input energy
150 keV/nucl. in accelerating structure with drift tubes
(DTL). At a wave length 6.36 m the length of the first
cell of structure DTL makes 5.78 сm. The longitudinal
gain of the sizes of cells is carried out already in higher
rate, therefore the quantity of drift tubes is reduced.
Phase extent of a beam after site RFQ already makes
20°, and radius ±3 mm. It gives the chance to calculate
structure of cells with considerably raised quantity of a
synchronous phase that increments rate of acceleration
and lowers the factor of a defocusing of particles.
In a viewed variant of structure DTL it is supposed
to use a combination of alternating phase focusing with
restricted quantity of the nets erected on an inlet in aper-
ture holes of some drift tubes [9]. Such variant provides
radially-phase stability of a beam in the course of accel-
eration on length of structure to 4.5 m. This combina-
tion will allow to reach the highest rate of acceleration,
thus requirements to accuracy of manufacturing and
installation of drift tubes considerably decrease.
Various variants of alternation of change of quantity
of a synchronous phase and quantity of focalizing nets
were studied.
The optimum variant is as a result chosen. Quantity
of a synchronous phase on an initial site of structure
throughout 15 cells makes φS=0○, and on the others 27
cells remains to a stationary value φS = –10○. For
maintenance of radial focusing in such structure focaliz-
ing nets are installed in three groups of drift tubes in
number of 17 pieces, at total of drift tubes 42 pieces.
Fig. 4. Radial trajectories of a motion ions for DTL
In Fig. 4 radial trajectories of a motion of ions for
which the radius on an input makes 3мм and an angle in
limits from +6○ to –9○ are given. Thus, on an output
prestripping section PSS-20 the total intensity current
heavy ions beam of taking into account transmission on
site RFQ and beam losses on nets structure DTL will
make 52% from an injected beam. It will allow at injec-
tion of a ions beam nitrogen N+ intensity 10 mА the
accelerated on an output PSS-20 ions beam intensity
1.5·1013p/pulse. That on three orders more than in pre-
sent prestripping section PSS-15. Then on an output of
the main section MS-5 of MILAC accelerator will make
a beam with energy the 8.5 MeV/nucl. and intensity of
ions 3·1012p/pulse at a pulse length 300 µs.
ACCELERATING STRUCTURE
PRESTRIPPING SECTION PSS-20
IN THE COUPLING VARIANT
At coupling of two diverse structures RFQ and DTL
in one resonator it is necessary to maintain quantities of
electrodynamic parameters on each of sites up to the
mark. At the same time, in view of that both structures
are excited on a wave with longitudinal magnetic field
Н110, natural frequency of the coupling resonator
changes depending on its length. In this case its quantity
becomes less in comparison with frequency on which
each of sites separately is attuned. Besides, there is an
infringement of the generated distribution of an electric
field along each of coupling sites.
To maintain necessary electrodynamic parameters of
sites of structures in the coupling resonator, effective
ISSN 1562-6016. ВАНТ. 2014. №3(91) 22
methods of the adjustment are developed, allowing to
compensate the specified diversions and to maintain
quantity of operational frequency. The developed effec-
tive adjusting devices providing both local and global
adjustment of distribution of the accelerating field along
each of sites are used.
As local adjusting systems devices of adjustment of
the inductive character of action, so-called «contriv-
ance», as rods located on the drift tube side, opposite to
their holders [10] were used. Contrivances have shown
high efficiency at adjustment of each of sites of acceler-
ating structure separately.
As devices of global adjustment on electrodynamic
parameters of accelerating structure the ending reso-
nance adjusting device were used [11]. It located on the
input and output accelerating structure.
Besides, in the coupling structure there is a necessity
of adjustment of level of power of each of sites without
infringement of distribution accelerating field. As such
devices can be used the volume devices entered into
field of the resonator where high quantity of a magnetic
field takes place. This field is located on periphery of
the resonator which is at an angle 90° in relation to
plane of accelerating structure.
Calculation of geometrical and electrodynamic char-
acteristics of the coupling accelerating structure was
carried out in a three-dimensional variant. As a result of
process of consecutive definition of character of activity
of each of adjustment devices geometrical parameters of
accelerating structure have been spotted. These investi-
gations have allowed to build up demanded character of
distribution of the accelerating field, a necessary rela-
tion of levels of amplitude of an accelerating field be-
tween sites and to gain operating frequency 47.2 MGz.
Fig. 5. Accelerating structure prestripping section PSS-20 in the coupling variant structures RFQ and DTL
On Fig. 5 is figured the accelerating structure in
which in one resonator sites DTL and RFQ are com-
bined with all devices of adjustment, geometry and
which standing has provided demanded quantities of
electrodynamic characteristics of accelerating structure
prestripping sections PSS-20.
Main parameters of accelerating structure prestripping
sections PSS-20 in the coupling variant
Parameters RFQ DTL
Input energy, keV/nucl. 6 151
Output energy, keV/nucl. 151 975
Mass to charge ratio, A/q 20 20
Operating frequency, MHz 47.2 47.2
Synchronous phase, deg 87…20 0…10
Cell numbers 198 42
Cavity length,cm 451 423
Tank diameter, cm 50 110
Acceleration rate, MeV/m 0.72 2.9
Output beam emittance
π mm mrad
0.456 0.84
Transmission, % 91 66
Pulsed current
of accelerated ions, p
2.88·1013 1.5·1013
In the table main parameters of accelerating struc-
ture prestripping sections PSS-20 in the coupling variant
are given.
CONCLUSIONS
Results of process of mathematical modeling of ac-
celerating structure prestripping section PSS-20 of linac
MILAC show that the offered coupling of sites RFQ
and DTL on interdigital (IH) accelerating structure pro-
vides high characteristics accelerated to energy
1 MeV/nucl. of a beam ions of a wide gamut of masses
with intensity 1013p/pulse on an input in the main sec-
tion MS-5. That allows after stripper to accelerate ions
with mass to charge ratio A/q≤5 to energy
8.5 MeV/nucl. and with intensity more 1012 p/pulse.
New prestripping section PSS-20 will provide a high
total level of transmission of ions beam along both cou-
plied sites of accelerating structure. Coupling of accel-
erating structures RFQ and DTL in one resonator will
allow to simplify a construction of accelerating structure
prestripping section and will allow to use available
equipment and the existing restricted areas. The system
of excitation high-frequency power will consist of one
generator that considerably will simplify a control sys-
tem of frequency, a phase and amplitude high-frequency
power. All it will provide essential economy of cost of a
construction and operation new prestripping section
PSS-20 of a heavy ion linear accelerator MILAC.
ISSN 1562-6016. ВАНТ. 2014. №3(91) 23
REFERENCES
1. V.A. Bomko, E.I. Revutskiy. Investigation accelerat-
ing system on wave Н111 // Journal of Technical
Physics. 1964, v. 34, №7, p. 1259-1265.
2. V.A. Bomko, E.I. Revutskiy, L.I. Bolotin. High-
frequency parameters of a multicharging ions linac
to energy 1 MeV/u on wave Н111 // Journal of Tech-
nical Physics. 1964, v. 34, №7, p. 1266-1271.
3. L.I. Bolotin, V.A. Bomko, E.I. Revutskiy,
I.S. Sidorenko. Accelerating system on wave Н //
Journal of Technical Physics. 1961, v. 31, №12,
p. 1426-1430.
4. V.A. Bomko, A.F. Dyachenko, A.F. Kobets, et al.
Interdigital Accelerating H- structure in the Multty-
charged Ion Linac (MILAC) // Rev. of Scientific In-
strum. and Methods. 1998, v. 69, №10, p. 35.
5. V.O. Bomko, O.F. Dyachenko, A.V. Pipa, et al.
Main section MILAC on wave Н111 // Problems of
Atomic Science and Technology. Series “Technics of
Physical Experiment”. 1979, №1(3), p. 55.
6. V.A. Bomko, B.V. Zajtsev, A.P. Kobets, et al.
Heavy Ions Beams Formation In An Initial Part of
Accelerating Structures Prestripping Section the
MILAC Linear Accelerator // Problems of Atomic
Science and Technology. Series “Nuclear Physics
Investigations”. 2012, №4(80), p. 15-19.
7. V.O. Bomko, B.V. Zajtsev, A.P. Kobets, et al. Ac-
celerating structures pre-stripping section the
MILAC heavy ion linear accelerator MILAC //
Problems of Atomic Science and Technology. Series
“Nuclear Physics Investigations”. 2012, №4(80),
p. 20-23.
8. V.O. Bomko, O.F. Dyachenko, A.P. Kobets, et al.
Adjustment of a new pre-stripping section the mul-
ticharge ion linear accelerator (MILAC) // Proc. In-
ternational Conf. EPAC08, Genoa, Italy, June 23-27,
2008, p. 3410-3412.
9. V.O. Bomko, A.P. Kobets, V.V. Panov, et al. Mod-
ernization of an initial part the MILAC // Proc. of
RUPAC 2012. S.-Petersburg. 2012, p. 466-468.
10. V.A. Bomko, V.V. Ivakhno // Nucl. Instrum. and
Meth. 2007, v. 582A, р. 354-377.
11. V.O. Bomko, O.F. Dyachenko, A.V. Pipa. Resonant
systems for adjustment accelerating structure type Н
// Problems of Atomic Science and Technology. Se-
ries “Technics of Physical Experiment”. 1981,
№3(9), p. 28.
Article received 09.12.2013
СОВМЕЩЕНИЕ УЧАСТКОВ УСКОРЯЮЩИХ СТРУКТУР C RFQ И DTL В ОДНОМ РЕЗОНАТОРЕ
ПРЕДОБДИРОЧНОЙ СЕКЦИИ ЛИНЕЙНОГО УСКОРИТЕЛЯ ЛУМЗИ
В.А. Бомко, Б.В. Зайцев, А.Ф. Кобец, К.В. Павлий, В.В. Панов
Новая предобдирочная секция ПОС-20 состоит из двух участков с разнородными ускоряющими структу-
рами. На начальном участке ускорения ионов от 6 до 150 кэВ/нукл. высокий захват в процесс ускорения
обеспечивает встречно-штыревая ускоряющая структура с RFQ. На втором участке ускорения ионов от
150 кэВ/нукл. до 1 МэВ/нукл. высокий темп ускорения создаёт встречно-штыревая ускоряющая структура
DTL. Поставлена задача совмещения таких разнородных ускоряющих структур в одном резонаторе.
СУМІЩЕННЯ ДІЛЯНОК ПРИСКОРЮЮЧИХ СТРУКТУР З RFQ ТА DTL В ОДНОМУ
РЕЗОНАТОРІ ПЕРЕДОБДИРКОВОЇ СЕКЦІЇ ЛІНІЙНОГО ПРИСКОРЮВАЧА ЛУМЗІ
В.О. Бомко, Б.В. Зайцев, А.П. Кобець, К.В. Павлій, В.В. Панов
Нова передобдиркова секція ПОС-20 складається із двох ділянок з різнорідними прискорюючими струк-
турами. На початковій ділянці прискорення іонів від 6 до 150 кеВ/нукл. високе захоплення в процес приско-
рення забезпечує зустрічно-штирьова прискорююча структура з RFQ. На другій ділянці прискорення іонів
від 150 кеВ/нукл. до 1 МеВ/нукл. високий темп прискорення створює зустрічно-штирьова прискорююча
структура DTL. Поставлено завдання суміщення таких різнорідних прискорюючих структур в одному резо-
наторі.
INTRODUCTION
MAIN PARAMETERS OF SITES OF ACCELERATING STRUCTURES RFQ AND DTL FOR PRESTRIPPING SECTION PSS-20
ACCELERATING STRUCTURE PRESTRIPPING SECTION PSS-20 IN THE COUPLING VARIANT
CONCLUSIONS
references
СОВМЕЩЕНИЕ УЧАСТКОВ УСКОРЯЮЩИХ СТРУКТУР C RFQ И DTL В ОДНОМ РЕЗОНАТОРЕ ПРЕДОБДИРОЧНОЙ СЕКЦИИ ЛИНЕЙНОГО УСКОРИТЕЛЯ ЛУМЗИ
суміщення ділянок прискорюючих структур З RFQ та DTL в одному резонаторі передобдиркової секції лінійного прискорювача лумзі
|