Baltic Scientific Instruments

Instruments & payload
Analysis & test services
Optics & photonics
Electronics & electrical engineering

Baltic Scientific Instruments (BSI) was established in 1994 on the basis of the Riga Research and Development Institute for Radio-Isotope Apparatus (RNIIRP, est.1966). RNIIRP had Union-wide responsibility for the development of instruments for radiation detection and measurement for the atomic energy industry, mining, oil and gas industries, space and military applications.  RNIIRP developed a broad range of products, and the highest level of technical knowledge and skills to meet the most sophisticated technological demands. These are the foundations of the capabilities that BSI now brings to global markets.

Since its founding as a private enterprise, BSI has specialized in the development and fabrication of devices for spectrometric analysis based on semiconductor and scintillation radiation detectors. Our products are applied in multiple industries: nuclear power; environmental monitoring; geophysics and the mining industry; medicine and healthcare; research including space sciences; security systems and customs control; and other spheres.  To succeed in global markets for radiation detection and analysis equipment BSI  was certified to ISO 9001:2000 by TUV Nord Baltik in September 2007 and now every year confirms its certification


BSI occupies a six-floor building of 3300 m2 total area. On the 1st (ground) floor there is a mechanical production site. The 2nd floor houses the Vacuum Cryogenics department and Spectrometry Department; 3d floor – the Department of Semiconductor Detectors; 4th floor – Training Room; Administration, including finance Department and Department of sales and marketing; 5th floor – Designer bureau; 6th floor – Department of Electronics and X-ray Fluorescence Analyses Department. 

The available infrastructure of BSI: 

  • Metal shop (metal works) (Vertical-Machining centre DMC 635 V ECOLINE, Turning centre CTX 310 ECOLINE V3, Driling machine WBU 30, Driling machine WSB 30, Miling machine FCA 500, PILOUS TMJ band saw model ARG 240 S.A.F, ultrasound welding machine. Fabrication materials: stainless steel, aluminium, copper and other materials. Dimensions of fabricated metal parts can be certified with measurement system CMM TESA Micro-Hite 3D.); 
  • Testing Laboratory (High vacuum pumping systems, Scrollvac SC 5D, Scrollvac SC 5D 230V 50HZ C03, TURBO-V301 navigator pump, Lithium Ion drift systems, water cleaning system); 
  • Electronics laboratory (voltmeters, Nokia analyzers, digital three-channel measuring instruments DPM 2701, Programming unit PIC16C74, Picoammeters, Fluke ScopeMeter FLK-196, digital Multimeter GDM-8246(CE)+RS+GRIP, D.C.Power Supply PSS-3203(CE)+GRIP); 
  • Computer modelling (Altium Designer, Autocad, SolidWorks Office Professional). 


  • Miniature HPGe Gamma – Ray Spectrometer for space application
  • CZT pixel detectors for imaging systems
  • TlBr pixel and strip detectors for space applications


  • Technological equipment for semiconductor detectors development and manufacturing for space applications
  • Technological equipment for electronics development and production for space application


  • Technical Assistance in the Development of TlBr Gamma-Ray Detection Systems for Planetary and Astrophysics Missions Contract No. 19398/05/NL/HB (2006-2009)
  • Development and Performance of a Miniature Gamma Spectrometer for Remote Sensing Planetary Applications. ESA Contract No. 4000114403/15/NL/NDe (2015-2017)


  • European Space Agency (ESA) 2. The National Aeronautics and Space Administration (NASA)
  • We are looking for the partners with request for development and production of the devices for radiations registration in space applications
Total employees75
Employees in space0,5 employees (or depends on the device structure)
Turnover4,1 millions/0,5 millions EUR EUR
Export quota space50 000 EUR (and it depends on the orders) %
Ramulu Str.3
Contact persons: Dr. Vladimirs Gostilo