Вышла статья в журнале НТБ Электроника №3, 2022 "Измерение энергетических распределений плотности потока излучений или как правильно рассчитать мощность дозы от нейтронов и гамма-квантов"
Стал доступен Радиометр-дозиметр спектрометрического типа UNSD-15, который позволяет корректно произвести измерение мощности эффективной и поглощенной дозы, а также мощности амбиентного эквивалента дозы в неизвестном поле нейтронов и...
SDMF-1608PRO Mobile –The neutron and gamma ray spectrometer -dosimeter is designed for measuring the
spectral neutron and gamma-ray flux
density in the real time.
Based on the measured spectral fluence rate effective and absorbed dose
rate is calculated in a wide energy
range of neutron and gamma ray, as well
as ambient equivalent dose rate.
For gamma-rays, spectrometer-dosimeter also calculates the exposure and
absorbed dose rate in the air.
When calculating the dose characteristics, the geometry of radiation
sources and irradiation conditions are taken into account.
Main features
Simultaneous measurement of energy spectra of neutron and gamma ray.
Measurement of neutron spectrum without
usage of bulky and heavy polyethylene moderators.
Measurement of continuous (“white”) spectrum of gamma ray as well as of
linear (discrete) spectrum.
Measurement of fast neutron and gamma ray flux density in absolute units.
Maximum load at detector input 3 х 105 pulses, which
corresponds to the computable effective dose rate of 1.75 х 105 μSv/hr from 239Pu-Be source with frontal geometry.
Energy resolutionofnomorethan 2.5% for neutron with
energy of 14.5 MeV and no more than9%forgammarayswithenergyof 661 keV (137Cs).
Application
Monitoring
in nuclear facilities.
Earth
physics.
Nuclear
medicine.
Measurement
of effective dose rate of secondary neutrons and gamma-ray at medical
accelerators (LINAC).
Research
in materials.
Fast neutron flux standard.
Calibration of any kind of integral dosimeters of
neutron and gamma radiation.
Spectrometer specifications
Сharacteristic
Value
Range of neutron energy
500 keV – 16 MeV
Range of gamma rays energy
250 keV – 8 MeV
Min/Max of effective dose rate
background/0,2
Sv/hr
Long-time instability (72 h)
0,5%
Average deviation from real values of neutron
flux density measurement
not more than 5%
Average deviation from real values of ambient
dose equivalent rate of neutron flux measurement
not more than 10%
Average deviation from real values of ambient
dose equivalent rate of H * (10) gamma radiation measurement
not more than +10%
Energy resolution at 137Cs line (661 keV)
not more than 9%
Anisotropy for neutron radiation
not more than +15%
Maximum neutron fluence for scintillator (not considering restoration)