B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus offers consumers submersible two-detector gamma-spectrometers based on SrI2(Eu) scintillation crystals under a manufacturing agreement and is looking for partners interested in a distribution services agreement.

B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus manufactures gamma-spectrometers is aimed for registration and analysis of gamma radiation spectra in the geometry of complete immersion in water and allows estimating the activity of isotopes in the aquatic environment in Bq/l.

Completeness of the device:
* submersible detector (2 pcs.);
* control unit with minicomputer;
* deep sea cable;
* software for the accumulation and processing of spectra.

Specifications:

Scintillator type	SrI2(Eu)
Number of detectors	2
Crystal size, mm	Ø 38×38
Energy resolution along the line 662 keV, %	3,5
Energy range of spectra measurement, keV	40..3000
Spectrum size measured, channels	4096
Detection limit for 137Сs for 24 h, Bq/l	≤ 0,04
Number of channel in spectrum (selected by the user)	256, 512, 1024, 2048, 4096
Operating temperature, °С	-10..+50
Maximal operating depth, m	400
Supply voltage, V (DC)	9..18
Power consumption, W	≤ 2
Network interface	RS-485
Weight, kg	8
Stability: spectral peak shift 137Cs for 24 h, %	≤ ± 1,0
System calibration cycle, year	≥ 1
Identification and quantitative determination of γ-radionuclides in marine water (Bq\l)	131I, 134Cs, 137Cs, 60Co, 40K etc.
Maximal activity measured for 137Cs, kBq	> 50
Measuring error, %, not more than	± 8,0..± 10,0
Maximal immersion depth for hermetic housings, m	40
Maximal autonomous operation with accumulator, days	10

Area of application: ensuring of radiation monitoring of freshwater and seawater.

B.I.Stepanov Institute of Physics offers partners:
* submersible two-detector gamma-spectrometers based on SrI2(Eu) scintillation crystals under a manufacturing agreement;
* submersible two-detector gamma-spectrometers based on SrI2(Eu) scintillation crystals under a distribution services agreement.

Catalogue of developments & services of «B.I. Stepanov Institute of Physics» 2022, p.17.

Submersible two-detector gamma-spectrometer based on SrI2(Eu) scintillation crystals is similar products BDKG‑05S, MKS‑AT6104DM, MKS‑AT6104DM1 made by «ATOMTEX SPE» (Republic of Belarus).

Works on further improvement of the device in terms of sensitivity and energy resolution increasing are possible.

The directions of scientific research and development of the B.I.Stepanov Institute of Physics are currently:
* Laser physics, development and creation of laser systems and technologies for medicine, ecology, industry, metrology and information protection;
* Physical and nonlinear optics, the disclosure and use of the patterns of propagation of high-power laser radiation in various media;
* Optical spectroscopy, development and application of methods and instruments for studying the properties and structure of various materials, including biotissues;
* Nanooptics and Nanomaterials;
* Quantum optics, investigation of quantum properties of electromagnetic radiation in computer science and cryptography;
* Investigation of the structure and properties of atomic-molecular structures and the creation of new optical materials, systems, instruments and technologies on this base;
* Plasma physics and plasma technologies: investigation of the plasma interaction with fields and matter; development and application of methods for plasma diagnostics, development of technological applications of gas-discharge and laser plasma
* Micro- and optoelectronics: LED technology, solar cells, microwave technology, microelectromechanical and sensor systems and devices;
* Physics of Fundamental Interactions and Nuclear Reactions - Investigating the Structure of the Microcosm and the Universe.

The B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus has scientific contacts with many countries. At present, more than 50 agreements on scientific and technical cooperation have been signed with organizations from 15 countries.

The Institute develops, manufactures and supplies laser and optical instruments for various purposes, as well as innovative components for laser technology, to many countries of the world (Russia, China, Germany, France, the United States, Saudi Arabia, India, etc.).

Consumers interested in purchasing submersible two-detector gamma-spectrometers based on SrI2(Eu) scintillation crystals under a manufacturing agreement.

Partners interested in purchasing submersible two-detector gamma-spectrometers based on SrI2(Eu) scintillation crystals under a distribution services agreement.