Integrated measuring sensor for electron radiation parameters
One of the most actual problems of the metrology is obtaining of information about several parameters measured with the help of one sensor. With the reference to the metrology of the electron radiation on the industrial accelerators such parameters can be particle flux (mean current of the beam), en...
Збережено в:
| Опубліковано в: : | Вопросы атомной науки и техники |
|---|---|
| Дата: | 1999 |
| Автори: | , , , , , , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
1999
|
| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/81533 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Integrated measuring sensor for electron radiation parameters / S.P. Karasyov, S.V. Maryokhin, A.Eh. Tenishev, V.L. Uvarov, G.L. Fursov, V.A. Shevchenko, I.N. Shlyakhov, I.I. Tsvetkov // Вопросы атомной науки и техники. — 1999. — № 4. — С. 60-61. — Бібліогр.: 2 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1859725713951686656 |
|---|---|
| author | Karasyov, S.P. Maryokhin, S.V. Tenishev, A.Eh. Uvarov, V.L. Fursov, G.L. Shevchenko, V.A. Shlyakhov, I.N. Tsvetkov, I.I. |
| author_facet | Karasyov, S.P. Maryokhin, S.V. Tenishev, A.Eh. Uvarov, V.L. Fursov, G.L. Shevchenko, V.A. Shlyakhov, I.N. Tsvetkov, I.I. |
| citation_txt | Integrated measuring sensor for electron radiation parameters / S.P. Karasyov, S.V. Maryokhin, A.Eh. Tenishev, V.L. Uvarov, G.L. Fursov, V.A. Shevchenko, I.N. Shlyakhov, I.I. Tsvetkov // Вопросы атомной науки и техники. — 1999. — № 4. — С. 60-61. — Бібліогр.: 2 назв. — англ. |
| collection | DSpace DC |
| container_title | Вопросы атомной науки и техники |
| description | One of the most actual problems of the metrology is obtaining of information about several parameters measured with the help of one sensor. With the reference to the metrology of the electron radiation on the industrial accelerators such parameters can be particle flux (mean current of the beam), energy flow (power) and energy of electrons (average value). For solution of these problems the authors of the report designed the combined charge-calorimetric sensor (CCS) on the base of elaborated in VNIIM Faraday cup (FC) FC-1 from the State Measurement Standard of Russia GET 72-90 content. With the help of the soft ware package GEANT the computer model for radiation-sensor interaction was constructed, that allowed to receive quantitative data on leakages from the sensing volume of a charge and radiation energy. The measuring channel for the mentioned parameters of electron radiation in energy range 5...50 MeV was built. The experimental investigation of the channel on the specially built bench and accelerator LU-10 KIPT has been carried out.
|
| first_indexed | 2025-12-01T11:20:34Z |
| format | Article |
| fulltext |
INTEGRATED MEASURING SENSOR FOR ELECTRON RADIATION
PARAMETERS
S.P.Karasyov, S.V.Maryokhin, A.Eh.Tenishev, V.L.Uvarov, G.L.Fursov, V.A.Shevchenko,
I.N.Shlyakhov, I.I.Tsvetkov*
NSC KIPT, Kharkov, Ukraine, *D.I.Mendeleyev Institute (VNIIM), St.Petersburg, Russia
INTRODUCTION
One of the most actual problems of the
metrology is obtaining of information about several
parameters measured with the help of one sensor. With
the reference to the metrology of the electron radiation
on the industrial accelerators such parameters can be
particle flux (mean current of the beam), energy flow
(power) and energy of electrons (average value). For
solution of these problems the authors of the report
designed the combined charge-calorimetric sensor
(CCS) on the base of elaborated in VNIIM Faraday cup
(FC) FC-1 from the State Measurement Standard of
Russia GET 72-90 content. With the help of the soft
ware package GEANT the computer model for
radiation-sensor interaction was constructed, that
allowed to receive quantitative data on leakages from
the sensing volume of a charge and radiation energy.
The measuring channel for the mentioned parameters of
electron radiation in energy range 5...50 MeV was built.
The experimental investigation of the channel on the
specially built bench and accelerator LU-10 KIPT has
been carried out.
1. COMPUTER SIMULATION
One of the main and most complicated problems
in the metrology of the electron radiation is the
calculation of the conversion coefficient of the primary
sensor and estimation of the systematic errors of the
measurements. As the possible approach to the solution
of this problem it was offered by the authors to use a
method of computer simulation of the interaction
between the radiation characterized by the given
characteristics with the converter. The latter is described
by means of a set of the geometrical sizes and element
structure. In such formulation it seems rather
perspective the application of the code GEANT,
elaborated in CERN for research of electromagnetic
interaction of high-energy radiation with matter.
For improvement of the calculation technique
FC-1 having known metrological characteristics has
been chosen [1]. It represents a body of revolution with
an input sleeve 2 of graphite, conical absorber 1 of
aluminium and screen 3 of lead in a back part of the
sensing volume.
Fig. 1 The configuration of the FC-1
sensing volume
It was assumed in calculations that the electron
flux is uniformly distributed within the cylinder of 1 cm
diameter. The outcome of the calculations of stopped
electrons and positrons distribution per unit length of
the sensing volume for initial energy of the electrons 5
and 50 MeV is shown on Fig.2. The jump of the
electron concentration in a screen border in the latter
case one can explain by electron-positron pair
generation in the lead by braking photons born in the
aluminium by primary electrons. The offset of a part of
electrons of this parentage from the sensing volume is
seen also.
Fig.2.Distribution of electrons (a) and positrons (b)
along the absorber
The distribution of braking photons per unit
length of the absorber is submitted on a Fig.3. The
distribution of an absorbed radiation energy along
absorber for E0=5 and 50 MeV is shown on the Fig.4,
and general relative losses of the charge and energy of
accelerated electrons in the sensing volume are
presented on a Fig.5. The analyses of the latters
demonstrates that at E0 >10 MeV the more and more
noticeable part of the charge and energy escapes from
the absorber.
Fig.3.Distribution of photons in the absorber
2. MEASURING CHANNEL
The geometrical characteristics and structure of
ВОПРОСЫ АТОМНОЙ НАУКИ И ТЕХНИКИ. 1999. № 4.
Серия: Ядерно-физические исследования (35), с. 60-61.
60
the CCS sensor are adduced on the Fig.6. It consists of
casing 1 executed from stainless steel with a thick
forward wall (for absorption of a background radiation)
and pipe socket 3 on the back side for connection of
vacuum pump.
Fig.4.Distribution of absorbed energy along FC-1.
3 ∆Q/Qo (%)
CHARGE LEAKAGE a)
2
1
Eo(MeV)
0
0 10 20 30 40 50
∆E/Eo(%)
ENERGY DISSIPATION b)
10
8
6
4
2
Eo(MeV)
0
0 10 20 30 40 50
Fig.5.Dependence of relative beam
charge (a) and energy (b) loses of electrons
energy E.
Fig.6.The FC-structure.
The absorber 2 is fixed in the casing through two
isolating rings 4 (polystyrene). The input collimator a
dia of 40 mms is closed by titanium foil 6 through
flange 5. The thermistor is placed in the back of the
absorber through isolating cover for galvanic isolation
of tracts for measurement of a charge and absorbed
energy of the electron radiation.
The measuring channel on the basis of CCS is
shown on a Fig.7. It consists of two separated
measuring tracts (charge and energy).
Fig.7.The scheme of CCS measuring channel.
The tract of charge involves a precise ohmic
divisor R1, R2, located directly on CCS and having
appropriate electronic set up. The tract of absorbed
energy includes built-in thermistor Rt as the primary
sensor supplied by the stabilized current source CS. The
error of the temperature measurement in range 0...100°C
does not exceed ± 0.2°C.
CONCLUSION
At fulfillment of CCS metrology investigation
were applied a method of direct measurements in
radiation field of the LU-10 linac [3], and also a method
of indirect measurements of the thermal characteristics
of the CCS with the help of special designed test stand.
As a result of executed activity the measuring
channel on the basic of charge-calorimetryc sensor of
electron radiation was designed that provides the
measurement of physical quantities of the following
nomenclature and range of values
- beam flux density, s-1 - - 1012...1015
- beam flux density , m-2.s-1 - 1015...1018
- beam power, W - 102...104
- absorbed energy of electron
radiation, J - 103...105
- energy of electrons (average
value), MeV - 5...50
with the metrological characteristics
- absolute error of the electron flux and density
measurement (at a confidence coefficient P=0.95)
- not exceed 2%
- absolute error of electron beam power and
absorbed energy measurement (P=0.95) -
not exceed 4%
- absolute error of electron energy measurement
- not exceed 5%
- time of one measurement - not exceed 200 s
The measuring channel was certificate as in
VNIIM as a working standard [2].
ВОПРОСЫ АТОМНОЙ НАУКИ И ТЕХНИКИ. 1999. № 4.
Серия: Ядерно-физические исследования (35), с. 60-61.
60
REFERENCES
1. S.P.Karasyov, S.V.Maryokhin, V.L.Uvarov, I.I.Tsvetkov.
On computer modeling of primary transducers in electron
radiation diagnostics // Abstracts of the 6-th European Particle
Accelerator Conference EPAC'98, Stockholm, 1998, p.134.
2. S.P.Karasyov, V.L.Uvarov, I.I.Tsvetkov. System of
methrological ensuring for radiation technologies using &
bremsstrahlung radiation. // VANT, series: Nucl. Phys. Invest.,
in. 2,3 (29.30) 1997, p.54.
ВОПРОСЫ АТОМНОЙ НАУКИ И ТЕХНИКИ. 1999. № 4.
Серия: Ядерно-физические исследования (35), с. 60-61.
60
|
| id | nasplib_isofts_kiev_ua-123456789-81533 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1562-6016 |
| language | English |
| last_indexed | 2025-12-01T11:20:34Z |
| publishDate | 1999 |
| publisher | Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| record_format | dspace |
| spelling | Karasyov, S.P. Maryokhin, S.V. Tenishev, A.Eh. Uvarov, V.L. Fursov, G.L. Shevchenko, V.A. Shlyakhov, I.N. Tsvetkov, I.I. 2015-05-17T16:54:52Z 2015-05-17T16:54:52Z 1999 Integrated measuring sensor for electron radiation parameters / S.P. Karasyov, S.V. Maryokhin, A.Eh. Tenishev, V.L. Uvarov, G.L. Fursov, V.A. Shevchenko, I.N. Shlyakhov, I.I. Tsvetkov // Вопросы атомной науки и техники. — 1999. — № 4. — С. 60-61. — Бібліогр.: 2 назв. — англ. 1562-6016 https://nasplib.isofts.kiev.ua/handle/123456789/81533 One of the most actual problems of the metrology is obtaining of information about several parameters measured with the help of one sensor. With the reference to the metrology of the electron radiation on the industrial accelerators such parameters can be particle flux (mean current of the beam), energy flow (power) and energy of electrons (average value). For solution of these problems the authors of the report designed the combined charge-calorimetric sensor (CCS) on the base of elaborated in VNIIM Faraday cup (FC) FC-1 from the State Measurement Standard of Russia GET 72-90 content. With the help of the soft ware package GEANT the computer model for radiation-sensor interaction was constructed, that allowed to receive quantitative data on leakages from the sensing volume of a charge and radiation energy. The measuring channel for the mentioned parameters of electron radiation in energy range 5...50 MeV was built. The experimental investigation of the channel on the specially built bench and accelerator LU-10 KIPT has been carried out. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Integrated measuring sensor for electron radiation parameters Cовмещенный измерительный преобразователь параметров электронного излучения Article published earlier |
| spellingShingle | Integrated measuring sensor for electron radiation parameters Karasyov, S.P. Maryokhin, S.V. Tenishev, A.Eh. Uvarov, V.L. Fursov, G.L. Shevchenko, V.A. Shlyakhov, I.N. Tsvetkov, I.I. |
| title | Integrated measuring sensor for electron radiation parameters |
| title_alt | Cовмещенный измерительный преобразователь параметров электронного излучения |
| title_full | Integrated measuring sensor for electron radiation parameters |
| title_fullStr | Integrated measuring sensor for electron radiation parameters |
| title_full_unstemmed | Integrated measuring sensor for electron radiation parameters |
| title_short | Integrated measuring sensor for electron radiation parameters |
| title_sort | integrated measuring sensor for electron radiation parameters |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/81533 |
| work_keys_str_mv | AT karasyovsp integratedmeasuringsensorforelectronradiationparameters AT maryokhinsv integratedmeasuringsensorforelectronradiationparameters AT tenishevaeh integratedmeasuringsensorforelectronradiationparameters AT uvarovvl integratedmeasuringsensorforelectronradiationparameters AT fursovgl integratedmeasuringsensorforelectronradiationparameters AT shevchenkova integratedmeasuringsensorforelectronradiationparameters AT shlyakhovin integratedmeasuringsensorforelectronradiationparameters AT tsvetkovii integratedmeasuringsensorforelectronradiationparameters AT karasyovsp covmeŝennyiizmeritelʹnyipreobrazovatelʹparametrovélektronnogoizlučeniâ AT maryokhinsv covmeŝennyiizmeritelʹnyipreobrazovatelʹparametrovélektronnogoizlučeniâ AT tenishevaeh covmeŝennyiizmeritelʹnyipreobrazovatelʹparametrovélektronnogoizlučeniâ AT uvarovvl covmeŝennyiizmeritelʹnyipreobrazovatelʹparametrovélektronnogoizlučeniâ AT fursovgl covmeŝennyiizmeritelʹnyipreobrazovatelʹparametrovélektronnogoizlučeniâ AT shevchenkova covmeŝennyiizmeritelʹnyipreobrazovatelʹparametrovélektronnogoizlučeniâ AT shlyakhovin covmeŝennyiizmeritelʹnyipreobrazovatelʹparametrovélektronnogoizlučeniâ AT tsvetkovii covmeŝennyiizmeritelʹnyipreobrazovatelʹparametrovélektronnogoizlučeniâ |