MKS-11GN SPRD SPECTRA Search Dosimeter-Radiometer

• High-sensitive and compact identifier of a new generation that is successfully used for radiation monitoring of borders of CIS member states according to the international technical assistance programs
• Complies with the international standard ANSI 42.48
• Real-time spectrum identification
• Built-in GPS/GLONASS-receiver

A high-sensitivity and compact device intended to detect and localize radioactive and nuclear materials by their external gamma and neutron radiation, as well as identify radionuclides by an amplitude gamma spectrum. It is used by the border guard service and other law enforcement agencies to prevent illicit transfer of these materials. Also, SPECTRA is used at companies and institutions dealing with gamma and neutron radiation sources.

Description

The device comprises high sensitivity CsI scintillation detectors of gamma and LiI of neutron radiation with solid state (silicon) photomultiplier.

Spectrum identification is carried out in real time. SPECTRA identifies radionuclides with indication of a category that they belong to (in compliance with the IAEA requirements):

• medical radionuclides

¹⁸F, ⁶⁷Ga, ⁵¹Cr, ⁷⁵Se, ⁸⁹Sr, ⁹⁹Mo, ^99mTc, ¹⁰³Pd, ¹¹¹In, ¹²³I, ¹²⁵I, ¹³¹I, ¹⁵³Sm, ²⁰¹Tl, ¹³³Хе;

• industrial radionuclides:

⁵⁷Co, ⁶⁰Co, ¹³³Ba, ¹³⁷Cs, ¹⁹²Ir,¹⁵²Eu, ²²Na, ²⁴¹Am, ²²⁶Ra, ⁷⁵Se;

• special nuclear materials:

²³³U, ²³⁵U, ²³⁷Np, Pu [Reactor grade plutonium (more than 6% ²⁴⁰Pu)];

• naturally occurring radioactive materials:

⁴⁰K, ¹³⁸La, ²²⁶Ra, ²³²Th-decay series and ²³⁸U-decay series.

Note: The list of nuclides may be extended if needed.

A brand new search algorithm provides high sensitivity of the device and its instant actuation at the slightest change of gamma or neutron background level. A new type detector ensures high thermal stability of the device and entirely eliminates the “microphone effect”.

The device is ergonomic and exceptionally user-friendly due to its compact size, large color display and ability to operate continuously for more than 200 hours when turned on. Ingress protection rating is IP67.

When threshold levels are exceeded, sound and vibrating alarms are generated, as well as light color indication of threshold levels exceeding (gamma radiation – red color, neutron – blue) with its duplication on the device’ front panel and end face.

The integrated GPS/GLONASS receiver and the new software make it possible to display the received radiation monitoring information on an electronic map.

The dosimeter can be connected to the PC via the USB port. The device stores and can transfer 250 complete gamma radiation spectra. It is powered from the built-in lithium polymer storage batteries that can be charged via the USB-cable.

Purpose of use

• Searches (detects and localizes) for and identifies radioactive and nuclear materials by their external gamma and neutron radiation
• Measures dose rate H^*(10) of gamma, X-ray and neutron radiation
• Measures dose H^*(10) of gamma and X-ray radiation
• Determines gamma and neutron radiation intensity
• Identifies a type of radionuclides by their amplitude gamma spectra (2048 channels)
• Saves amplitude gamma spectra and events in the nonvolatile memory

Branches of use

• CUSTOMS AND BORDER SERVICES
• EMERGENCY SERVICES AND CIVIL DEFENSE
• LAW ENFORCEMENT AGENCIES
• SANITARY DOSIMETRY AND ECOLOGY
• INDUSTRY

RADIOACTIVE WASTE STORAGE SITES