CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 1 METHODS AND INSTRUMENTS FOR DOSIMETRIC MEASUREMENTS IN MIXED NEUTRON-GAMMA RADIATION FIELDS NATALIA GOLNIK NATIONAL CENTRE FOR NUCLEAR RESEARCH

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) MARIA REACTOR L ABORATORY FOR M IXED R ADIATION D OSIMETRY NCBJ IN OTWOCK-ŚWIERK

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) Neutron dosimetry T HE BASIC PROTECTION QUANTITY FOR IONISING RADIATION IS THE ABSORBED DOSE IN AN ORGAN OR TISSUE. B ECAUSE DIFFERENT TYPES OF RADIATIONS HAVE DIFFERENT DEGREES OF BIOLOGICAL EFFECTIVENESS ACCOUNT MUST BE TAKEN FOR RADIATION TYPE. T HE CONCEPT OF WEIGHTED DOSE SEEMS AT PRESENT THE BEST AVAILABLE. T HE PRESENT SYSTEM, RECOMMENDED BY ICRP INVOLVES A COMPLEX COMBINATION OF EFFECTIVE DOSE, THE SO CALLED „ PROTECTION QUANTITY ” WHICH IS USED IN LEGISLATION AND THE OPERATIONAL QUANTITIES WHICH INSTRUMENTS AND DOSEMETERS SHOULD REALISE.

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR)

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) Neutron dosimetry A ONGSIDE THE PROBLEMS OF THE COMPATIBILITY OF THE PROTECTION AND OPERATIONAL QUANTITIES THERE REMAINS THE PROBLEM OF PROVIDING DEVICES WHICH MEASURE THE OPERATIONAL QUANTITIES ACCURATELY, IN A ROUTINE AND SIMPLE WAY. T HERE REMAINS MUCH TO DO IF SUCH DEVICES ARE TO BECOME WIDELY AVAILABLE.

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) NU NC CU U DLT

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 1. Calibration laboratory P. Tulik, Sz. Domański N EUTRON SOURCES 241 A M B E, 252 C F, TRACEABLE TO N ATIONAL P HYSICAL L ABORATORY, UK, 239 P U B E S OURCES CAN BE EXPOSED FREE IN AIR OR IN MODIFYING FILTERS. D OSE EQUIVALENT RATE : 2 ÷1400 μSv/h. 137 C S GAMMA SOURCES GIVE FIELDS TRACEABLE TO P OLISH C OMMITTEE FOR N ORMALISATION AND M EASUREMENTS ; DOSE EQUIVALENT RATE OF 2 μSv/h ÷ 20 mSv/h

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 1. Calibration laboratory

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 1. Calibration laboratory

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 2. Instrument for low-level gamma and neutron monitoring S. Pszona, A. Bantsar, K. Wincel. B. Zaremba P HOTONS IN COMMON / AVAILABLE NEUTRON MONITORS ARE USUALLY DISCRIMINATED NEW DESIGNED DEVICE GIVES POSSIBILITY OF REGISTRATION GAMMA AND NEUTRON COMPONENTS IN SEPARATE „ WINDOWS ”

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 2. Instrument for low-level gamma and neutron monitoring FOR THERMAL AND EPITHERMAL NEUTRONS THERE IS A SIGNIFICANT CONTRIBUTION FROM SECONDARY GAMMA GENERATED BY NEUTRONS IN ( N, P ) REACTIONS ( MONTE CARLO CALCULATIONS ) VALUE NORMALIZED TO H * (10)

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) Detector Response to gammas nSv -1 Response to neutrons nSv -1 Remarks AmCsCfAm-Be NEK 240G 160* * without Pb filter with Pb filter A LMOST EQUAL RESPONSE TO GAMMA AND NEUTRONS P B FILTER GIVES POSSIBILITY TO CORRECT GAMMA ENERGY DEPENDENCE C HANNELS GIVES POSSIBILITY TO CORRECT RESPONSE >10M E V 2. Instrument for low-level gamma and neutron monitoring

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) Recombination Chamber REM-2 recombination chamber  L ARGE CHAMBER (6 KG, 1800 CM 3 ), 25 TE ELECTRODES WITH THE DIAMETER OF 12 CM ;  DISTANCE BETWEEN ELECTRODES - 7 MM.  U SUALLY FILLED WITH A MIXTURE OF METHANE AND NITROGEN UP TO ABOUT 1 MP A. High-pressure, tissue-equivalent ionization chamber, operated under conditions of initial recombination of ions

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 0 0 voltage ionis. current 0 0 saturation current voltage f i i  0 Ion collection effciency

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) Dependence on radiation quality

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) Recombination index of radiation quality

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) AMBIENT DOSE EQUIVALENT*(10) H*(10) = D*(10) X Q A PPROXIMATION WITHIN RECOMBINATION METHODS : H*(10) ≈ D*(10) X Q 4

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 3. MONITORING SYSTEM FOR WORKPLACES REM-2 Keithley 6517B Interface KUSB 448B Software

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) RESULTS Rad. sourceD*(10) [mSv/h]Q4Q4 H*(10) [mSv/h] Cs-1376,10E-021,00E+006,10E-02 Cf LiF1,10E-028,29E+009,10E-01 Cf-2523,2E-028,04E+002,59E-01 Cf LiF1,11E-028,29E+009,14E-01 AmBe-2411,54E-027,44E+001,14E-01 Cs-1376,10E-021,02E+006,22E-02 Cs-1376,12E-021,00E+006,12E-02 PuBe-2391,53E-027,59E+001,16E-01 Cf-2521,60E-028,23E+001,31E-01

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) OVERNIGHT MEASUREMENTS

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 3. Monitoring system for workplaces T

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 3. Monitoring system for workplaces T HE IDEA OF THE TRIPLE - MODE DETECTOR ( SUMMATION MODE RAISES SENSITIVITY, DIFFERENTIAL MODE GIVES POSSIBILITY OF DIRECT MEASUREMENTS OF THE AMBIENT DOSE EQUIVALENT RATE, IN CASE OF FLUCTUATIONS OF DOSE RATE. T WO SWITCHES ARE NEEDED FOR PROPER CONFIGURATION OF POLARIZING ELECTRODES AND FOR MEASUREMENTS OF IONIZATION CURRENT. 22

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 4. Ionization chamber containing 10 B M.A. Gryziński, K. Tymińska, M. Zielczyński D EVELOPMENT OF A METHOD FOR DETERMINATION OF AMBIENT DOSE EQUIVALENT, H*(10), USING AN IONIZATION CHAMBER FILLED WITH BF 3 TARGET  Considered solutions Classic recombination chamber with addition of BF 3 to the filling gas; High-pressure chamber filled with BF 3 and placed in external moderator; Relatively small chamber (BOR-2) in spherical moderator Air filled ionization chamber with 10 B in material of electrodes

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) A DDITION OF BF 3 ( ABOUT 0,1% ) IMPROVES THE CHAMBER SENSITIVITY FOR LOW ENERGY NEUTRONS (<10 KE V) AND ONLY SLIGHTLY INFLUENCES THE ENERGY DEPENDENCE FOR FAST NEUTRONS. Ionization chamber containing 10 B classic REM-2 with addition of BF 3 to the filling gas Dose response calculated with MCNPX code (per 1 neutron)

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) T HICKNESS OF THE MODERATOR, GAS PRESSURE AND POLARISING VOLTAGE SHOULD BE OPTIMISED IN ORDER TO OBTAIN SIMILAR SENSITIVITY TO H*(10) FOR NEUTRONS AND GAMMA RADIATION IN CERTAIN ENERGY RANGE Ionization chamber containing 10 B - high pressure chamber with moderator

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) M ODERATORS MADE WITH POLYETHYLENE Ionization chamber containing 10 B - high pressure chamber with moderator Angular dependence of the chamber response

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) S ATURATION CURVES OF THE REM-2 CHAMBER FILLED WITH BF 3 HAVE BEEN DETERMINED IN NEUTRON AND GAMMA RADIATION FIELDS. Ionization chamber containing 10 B - high pressure chamber with moderator Relative ion collection efficiency for 137 Cs and 252 Cf

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR)  Optimum values Thickness of the external moderator – ca. 3 cm Gas pressure – 130 kPa Polarising voltage – 350 V for 4 cm moderator. Ionization chamber containing 10 B high pressure chamber with moderator

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 5. Model of recombination chamber with spectrometric properties M. Zielczyński, N. Golnik, M.A. Gryziński, M. Maciak, K. Tymińska P ATENT APPLICATION Model. MCNPX Visual Editor  Considered solutions Number of electrodes - 21; Made with PP-EL Thickness of electrodes – 10 mm; Electrodes covered with B 4 C

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 5. Model of recombination chamber with spectrometric properties N EUTRON FLUX ON THE CHAMBER LID (0) AND CHOSEN ELECTRODES (1‐21) AT 25 MG / CM 3 B 4 C LAYER THICKNESS FOR BOTH M ONTE C ARLO CODES.

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 5. Model of recombination chamber with multilayer moderator N EUTRON FLUX ON THE CHAMBER LID (0) AND CHOSEN ELECTRODES (1‐21) AT 600 MG / CM 3 B 4 C LAYER THICKNESS FOR BOTH M ONTE C ARLO CODES.

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 5. Model of recombination chamber with multilayer moderator N EUTRON FLUX ON THE LOWEST ELECTRODE (21) FOR VARIOUS VALUES OF THE B 4 C LAYER THICKNESS FOR BOTH M ONTE C ARLO CODES.

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 6. Passive detector with multilayer moderator N. Golnik, K. Dworecki, M.A. Gryziński, P.Tulik, K. Tymińska Radiation

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 6. Passive detector with multilayer moderator

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 6. Passive detector with multilayer moderator

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR)

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 7. Accident dosimetry

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) 7. Accident dosimetry C APACITORS AS A DETECTOR

CENTRAL LABORATORY FOR RADIOLOGICAL PROTECTION IAEA PROJECT RER/9/117 IAEA PROJECT RER/9/117 Regional Workshop on Regulatory Control of Radioactive Discharges to the Environment June 2013, Warsaw, Poland DEVELOPMENT OF NUCLEAR SAFETY AND RADIOLOGICAL PROTECTION METHODS FOR THE NUCLEAR POWER ENGINEERING’S CURRENT AND FUTURE NEEDS Polish National Centre for Research and Development (NCBiR) THANK YOU FOR YOUR ATTENTION WE WILL SHOW MUCH MORE IN NEXT YEAR