measuring tools for radiationX

Ecotest STORA-ABG Alpha, beta, gamma radiation radiometer-dosimeter RKS-01

Ecotest STORA-ABG Alpha, beta, gamma radiation radiometer-dosimeter RKS-01

Ingediend door toon op wo, 08/30/2023 - 10:09

A compact search device with a telescopic rod for quick detection and localization of alpha, beta, gamma, and X-ray radiation sources.

The device features an alpha, beta, gamma-sensitive Geiger-Muller counter with a mica window. Analog indicator of radiation intensity facilitates the localization of radiation sources.STORA-ABG allows storing up to 1000 measurement results in non-volatile memory, viewing them on the indicator and transferring the results to a personal computer via Bluetooth in real-time mode. New software “RadReader” has been developed for operation with the STORA-ABG dosimeter-radiometer.

Features

  • Alpha-beta-gamma-sensitive Geiger-Mueller counter with mica window

  • Energy-compensating filter, which allows to obtain a reliable energy dependence of the radiometer readings when measuring photon ionizing radiation in the energy range from 12 KeV to 3 MeV

  • Large display with luminescent backlight, which provides simultaneous display of measurement units, measurement errors, threshold level, real-time; and an analog indicator of instantaneous radiation intensity

  • Ability to perform measurements with a preset error

  • Prompt evaluation of gamma background within 10 seconds

  • Automatic subtraction of gamma radiation component when measuring beta radiation parameters

  • Automatic subtraction of gamma and beta radiation components when measuring alpha radiation parameters

  • Programming of threshold levels of the alarm system activation for each parameter of measured radiation

  • Automatic setting of measurement intervals and ranges

  • Audio signaling of each registered gamma quantum, alpha or beta particle with the possibility of its deactivation

  • Two-tone audio alarm of exceeded programmed threshold levels

  • Recording in nonvolatile memory up to 1 000 measurement results

  • Viewing the measurement results previously recorded in non-volatile memory on the indicator, as well as transferring the information to a personal computer via Bluetooth

  • Four-level indication of the battery discharge

  • New software has been developed to work with the device

  • Software is used for:

    – readout of measurement results from the dosimeter memory into the PC as a dosimeter measurement protocol

    – viewing measurement results on the PC monitor, preparing and printout of reports, saving measurement results to a file without changes or as a report for further use

Specifications

Measurement range of photon-ionizing radiation DER 0.1 … 100 000 μSv/h
Display range of photon-ionizing radiation DER 0.01 … 100 000 μSv/h
Main relative permissible error limit when measuring photon-ionizing radiation DER at 137Cs calibration with a confidence probability of 0.95 (15+2/М) %,

 

where M is a dimensionless value that is numerically equal to the DER value measured in μSv/h
Energy range of photon-ionizing radiation being registered 0.012 … 3 МеV
Energy dependence of radiometer readings when measuring photon-ionizing radiation DER relative to 0.662 MeV (137Cs)

 

– in the energy range from 0.012 to 0.04 MeV, not more

– in the energy range from 0.04 to 1.25 MeV, not more

  

 

 

± 35 %

 

± 25 %
Measurement range of surface beta-particles flux density 5 … 999 999 part./(cm2×min)
Display range of surface beta-particles flux density 1 … 999 999 part./(cm2×min)
Measurement range of surface activity of beta-emitting radionuclides 0.22 … 9 999 Bq/cm2

 

for С0 source type (90Sr/90Y)

(efficiency of С0 type sources is 0.377)
Display range of surface activity of beta-emitting radionuclides 0.01 … 9 999 Bq/cm2
Main relative permissible error limit when measuring surface beta-particles flux density in the range from 5 part./(cm2×min)  to 999 999 part./(cm2×min) at 90Sr/90Y calibration with a confidence probability of 0.95 (20+150/F) %,

 

where F is a dimensionless value that is numerically equal to the value of surface beta-particles flux density measured in part./(cm2×min)

 
Main relative permissible error limit when measuring surface activity of beta-emitting radionuclides in the range from 0.22 Bq/cm2 to 9 999 Bq/cm2 at 90Sr/90Y calibration with a confidence probability of 0.95 from С0 source type (20+10/А) %,

 

where А is a dimensionless value that is numerically equal to the value of surface activity of beta-emitting radionuclides measured in Bq/cm2
Energy range of beta-particles being registered 0.15 … 3 MeV
Measurement range of surface alpha-particles flux density 5 … 999 999 part./(cm2×min)
Display range of surface alpha-particles flux density 1 … 999 999 part./(cm2×min)
Measurement range of surface activity of alpha-emitting radionuclides 0.2 … 9 999 Bq/cm2

 

for П9 source type (239Pu)

(efficiency of П9 type sources is 0.490)
Display range of surface activity of alpha-emitting radionuclides 0.01 … 9 999 Bq/cm2
Display range of pulse count rate from alpha, beta, gamma radiation counter 0.001 … 9 999 cps
Main relative permissible error limit when measuring surface alpha-particles flux density in the range from 5 part./(cm2×min) to 999 999 part./(cm2×min) at 239Pu calibration with a confidence probability of 0.95 (20+150/F) %,

 

where F is a dimensionless value that is numerically equal to the value of surface alpha-particles flux density measured in part./(cm2×min)
Main relative permissible error limit when measuring surface activity of alpha-emitting radionuclides in the range from 0.2 Bq/cm2 to 9 999 Bq/cm2 at 239Pu calibration with a confidence probability of 0.95 from a standard П9 source type (20+10/А) %,

 

where A is a dimensionless value that is numerically equal to the value of surface activity of alpha-emitting radionuclides measured in Bq/cm2
Window area 13.8 сm2
Typical sensitivity to photon-ionizing radiation with an energy of 0.662 MeV (137Cs) 4.5 cps/(μSv/h)
Time of operating mode setting of the radiometer, not more 1 min
Time of continuous operation of the radiometer when powered from a new battery of two 1 200 mAh AAA galvanic cells under normal conditions and given gamma background not more than 0.5 μSv/h, disabled sounding of registered gamma quanta and disabled backlight of the scale, not less 2 000 h
Operating supply voltage 3 V
Additional relative permissible error limit when measuring photon-ionizing radiation DER, surface beta-particles flux density and surface alpha-particles flux density in the range of supply voltage from 2.4 V to 3.2 V ± 5 %
Additional relative permissible error limit when measuring photon-ionizing radiation DER, surface beta-particles flux density and surface alpha-particles flux density caused by changes in the environmental temperature from minus 20 °С to + 50 °С ± 0.5 %

 

per each 1°С of deviation from 20 °С
Operating temperature range – 20 … + 55 °С
Overall dimensions of the radiometer, not less 160 × 75 × 37 mm
Length of the folded telescopic rod 382 mm
Length of the unfolded telescopic rod 937 mm
Weight of a telescopic rod 0.21 kg
Weight of the radiometer without a telescopic rod, not more 0.4 kg
Weight of the radiometer in package, not more 4.2 kg (case – 3.2 kg)


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