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JSC SPC ASPECT > Products > Portable devices > TOPAZ

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TOPAZ

DRG-07A TOPAZ  is a wide-range and highly sensitive dosimeter with the functions of searching for gamma radiation sources, measuring the dose rate of H*(10) and gamma radiation exposure dose.

 

Intended Use

  • Monitoring of radiation situation, search and localization of gamma radiation sources, radiation mapping of the area
  • Monitoring of fissile and radioactive materials trafficking, radiation monitoring of areas as part of anti-terrorist activities, etc.

 

 

Category: Portable devices Tags: Anti-terror, Customs inspection, Environmental monitoring, Nuclear power industry
  • Description
  • Specifications and Performance

Description

Design

The dosimeter is designed as a portable cylindrically shaped device containing a scintillation gamma detector, electronics units, and devices for wired and wireless communication.

The dosimeter has several options for mounting the base unit:

  • on the handle (with the smartphone holder)
  • on the telescopic rod
  • on the wall (with the possibility of power supply from an external source)

The telescopic rod is designed for making measurements in places that are difficult to reach and remote from the operator.

The smartphone is used to continuously display the measured dose and count rate of the pulses received from the gamma detector. Specialized software allows the user to transfer files between the gamma detector and the smartphone, as well as transfer, process, store and view measurement data.

The device comes with a carrying bag that holds the device with accessories for field operation.

Operation principle

The dosimeter scintillation detector converts ionizing radiation quanta into pulse amplitude with their following registration and analysis using a multi-channel amplitude analyzer.

Features

  • Portable device with a wide range of recorded energies and exposure dose rate
  • Quick availability
  • Audible and visual alarm
  • Database of alarm events
  • Shock-resistant housing

Specifications and Performance

Polystyrene scintillator

50×50

Range of measurement

30∙10⁻⁹ to 1 Sv/h (EDR measurement)
1∙10⁻⁷ to 10 Sv/h (ED measurement)

Energy range of the registered photon radiation

0.025 to 6 MeV

Sensitivity of detector to Cs-137 photon radiation

600 cps per 1 μSv/h

Time of the response to the EDR change (at EDR ≥ 1 μSv/h)

2 seconds max

Limits of the permissible basic relative error of the measurement

EDR :
• ±15 ( 0.02 to 100 μSv/h)
• ±20 (100 μSv/h to 10 mSv/h)
• ±30 (10 mSv/h to 1 Sv/h)
ED:
• 15

Run time on the built-in batteries

16 hours

Ingress protection

IP67 (or IP54)

Environmental

-20 to +50 °С, 98 % at 35 °С

Service life

8 years

Mean time between failures

10,000 hours min

Dimensions

(650×168×130) mm (BDS-GC-50×50)

Weight

1 kg max (BDS-GC-50×50)

PC connection

Bluetooth
MODBUS

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JSC SPC ASPECT
8 Sakharova A.D. Street
141980 u.d. Dubna, Dubna
Moscow region, Russia

 

E-mail: aspect@dubna.ru
Phone: +7 496 216-52-72
Fax: +7 496 216-51-08

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