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THETA CONSULT is exclusive representative for Bulgaria for service and uphold to the products of SYNODyS Group

1. INDIVIDUAL THERMO-LUMINESCENT DOSIMETER THETA PRO, compatible with dosimetric systems ALNOR and MTDC with:
   

• Dosimetric cassette "THETA PRO" with additional tin filters, consisting of three elements:

• Transparent protective outer box (shell);

• Colored holder;

• Carrier with places for four thermo-luminescent detectors (TLD) and identification code;

• Thermo-luminescent CaSO₄ detectors:Dy type MMC - 4

• Magazine for loading 20 holders (when measuring on the Dosacus equipment the Alnor system);

• " Mechanical "opener" for cassettes;

 

Measurement range:10 mR - 50 R;

Energy range: 33 keV - 3 MeV;

Main error: d<=10% (at energy 662 keV);

Nonlinearity of the value
in the measurement range: 10%

Additional error:

• Due to energy dependence: 30%

• Due to anisotropy: 15%

2. THERMOLUMINISCENT DOSIMETRIC SYSTEM FOR EQUIVALENT DOSE FROM PHOTON EMISSION Hp (10)

• Measurement device, type VMD-3;

• Thermo-luminescent dosimeters, type TPP-3(P) with thermo-luminescent CaSO4:Dy detectors type MMC-4 with characteristics:

• Energy range: 20 keV - 30 MeV

• Measurement range for the equivalent dose Hp (10) and for
  - the photon emission: 10 mSv - 1Sv
  - main error: d<=10% (at energy 662 keV)

3. PROCEDURE FOR CALCULATION AND DETECTION OF GASEOS AEROSOL RELEASES

4. PREPARATION OF SETS OF QUENCHED STANDARDS

   Sets of quenched standards have been prepared of separate natural and technological radionuclides for calibration based on efficiency and energy of liquid scintillation beta and alpha-beta spectrometers. The standards include ³H, ¹⁴C, ⁴⁰K, ⁵⁵Fe, ⁶³Ni, ⁶⁰Co, ⁸⁹Sr, ⁹⁰Sr, ¹³⁴Cs, ¹³⁷Cs, (²¹⁰Pb+²¹⁰Bi+²¹⁰Po) and isotopes of Ra, U, Th, Pu and are prepared using established factory liquid scintillation mixtures of Packard , LKB Wallac, Zinzer. A significant advantage of these sets is their absolute correspondence to real events of liquid scintillation analysis concerning quenching components as water, carriers, pH.

5. SYSTEM FOR AUTOMATED SERCHING OF POINT(SPOT) RADIOACTIVE CONTAMINATION IN OPEN AREAS

   A design project of a system, which provides fast, automated searching of point radioactive contamination of open areas have been developed. It detects and points out contamination. The system has productivity of minimum 2000 m2/h in a scanning regime.