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23rd International Conference on Radionuclide Metrology and its Applications - ICRM 2023

26โ€“31 Mar 2023
Europe/Bucharest timezone

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Session

Gamma-ray spectrometry

GS
29 Mar 2023, 09:20

Conveners

Gamma-ray spectrometry: 2 Oral and 10 Poster contributions

  • Marie-Christine Lรฉpy (CEA-LNE-LNHB)
  • Octavian Sima (University of Bucharest & IFIN-HH Bucharest)

Gamma-ray spectrometry: 2 Oral contributions, ICRM WG meeting

  • Octavian Sima (University of Bucharest & IFIN-HH Bucharest)
  • Marie-Christine Lรฉpy (CEA-LNE-LNHB)

Description

Gamma-ray spectrometry

Presentation materials

There are no materials yet.

  1. 17. Radionuclide-free efficiency calibration of an HPGe detector using monochromatic photon beams measured with a cryogenic radiometer
    Dr Victor H. Elvira (CEA, France)
    29/03/2023, 09:20
    Gamma-ray spectrometry
    Oral

    The efficiency calibration of spectrometers is traditionally based on the measurement of radioactive sources calibrated in activity and whose emission intensities are known. However, in the energy range below 60 keV, there is a lack of reliable tabulated emission intensities and some inconsistencies have been highlighted [1]. Furthermore, if one aims to improve the measurement of emission...

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  2. 29. Verification of gamma-ray spectrometry analysis software for the computation of characteristic limits according to ISO 11929
    Michel Bruggeman (SCK CEN)
    29/03/2023, 09:40
    Gamma-ray spectrometry
    Oral

    Authors: 1. M.W. van Rooy (NMISA, South Africa), 2. M. Herranz (UPV/EHU, SPAIN),
    3. R. Idoeta (UPV/EHU, SPAIN), 4. L. Verheyen (SCK CEN, Belgium), 5. M. Bruggeman (SCK CEN, Belgium), 6. M. Lepy (LNE-LNHB, France), 7. S. Pierre (LNE-LNHB, France), 8. P. Saganowski (NCNR RC POLATOM, Poland), 9. A. Luca (IFIN-HH, Romania)

    Metrologically sound analyses of radioactivity of samples requires that...

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  3. 3. Unmanned Long Range Helicopter System for Radiological Emergency HPGe Spectrometry
    Dr Jiri Suran (CMI, Czech Republic)
    29/03/2023, 10:00
    Gamma-ray spectrometry
    Poster

    Following a nuclear or radiological event, radiation protection authorities and other decision-makers need rapid and credible information about the affected areas based on reliable radiological data. However, the potentially large areas and risks to people in the vicinity pose difficult measurement challenges.
    Therefore, European joint research project โ€œMetrology for Mobile Detection of...

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  4. 5. Gamma-ray interrogation of some neutron source using MCNP
    Mr Ciprian Cosar (University of Bucharest, Faculty of Physics)
    29/03/2023, 10:02
    Gamma-ray spectrometry
    Poster

    Neutron sources have been in use for quite some time, and the need for accurate account for nuclear material especially Plutonium and Uranium is necessary for IAEA safety and safeguards. Following recent events there has been special need to know how much Plutonium or Americium are present in old sources that are scattered around the world in the form of Pu-Be neutron sources. Isotopic content...

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  5. 7. A Novel Method of Fast Computing of the Full-Energy Peak Efficiency for Cylindrical Sources Using Coaxial High-Purity Germanium Detectors
    Doru Stanga (IFIN-HH (Romania))
    29/03/2023, 10:05
    Gamma-ray spectrometry
    Poster

    The computation of the FEP efficiency is widely used because the relative method of measurement has severe restrictions. The MC simulation of photon transport is the reference method of computing the FEP efficiency but it is rather complicate, time consuming and requires skilled people for determining optimal detector parameters.Hence, it is not convenient its use for many different source...

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  6. 6. Calibrating GESPECOR Model of Computing the Full-Energy Peak Efficiency of Coaxial High-Purity Germanium Detectors by Monte Carlo Simulation
    Dr Doru Stanga (IFIN-HH (Romania))
    29/03/2023, 10:07
    Gamma-ray spectrometry
    Poster

    Monte Carlo (MC) simulation models implemented as computer codes are widely used for computing the full-energy peak (FEP) efficiency of gamma spectrometry (GS) systems. Their calibration is an important step in obtaining the traceability of GS measurements that employ computed values of the FEP efficiency. The input of MC models consist of model variables (e.g. photon energy) ...

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  7. 18. Measuring mass attenuation coefficients for materials with unknown composition by performing transmission measurements with a HPGe detector for X-rays and low-energy gamma rays
    Michel Bruggeman (SCK CEN)
    29/03/2023, 10:10
    Gamma-ray spectrometry
    Poster

    In gamma-ray spectrometry the analysis of low-energy gamma-emitting nuclides like 210Pb, 129I needs special attention because the gamma attenuation in the sample depends on the specific element composition of the sample material. Hence, a material- or sample-specific self-attenuation correction is necessary. For that purpose, attenuation correction procedures have been developed in the past...

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  8. 35. Self-attenuation in the low-energy range: an experimental study on Pb-210
    Marie-Christine Lรฉpy (CEA-LNE-LNHB)
    29/03/2023, 10:12
    Gamma-ray spectrometry
    Poster

    Authors: M.-C. Lรฉpy 1, L. Chambon 1, B. Sabot 1, M. Anagnostakis 2, A. De Vismes 3, R. Galea 4, R. Idoeta 5, P. Jodlowski 6, K. Karfopoulos 7, A. Meyer 3, I. Mitsios 2, V. Peyres 8, P. Saganowski 9, N. Salpadimos 7, M.I. Savva 10, O. Sima 11, T.T. Thanh 12, R. Townson 4, Z. Tymiล„ski 9, T. Vasilopoulou 10, L. Verheyen 13, T. Vidmar 13
    Affiliations: 1: LNHB, 2: NTUA, 3: IRSN, 4: NRC, 5:...

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  9. 51. Calculation of detection limits with the LSQ method in gamma-ray spectrometry using interpolation
    Toni Petrovic (โ€œJoลพef Stefanโ€ Institute)
    29/03/2023, 10:15
    Gamma-ray spectrometry
    Poster

    The detection limit (DL) is the smallest value of the measurand which can be detected with a predefined probability. In terms of the indication, which is in gamma-ray spectrometry the number of counts in a peak occurring at an energy where the analyte radiates, the indication corresponding to the DL, np#, is the solution of the equation [1]
    (np#- np)2=k1-ฮฒ2[ur2(W)+u2(np= np#)] , ()
    where...

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  10. 60. Surface activity determination in metallic waste samples by using HPGe and CeBr3 detectors and MCNP modelling of ฮณ-spectra
    Dr Arunas Gudelis (Center for Physical Sciences and Technology (FTMC), Savanoriลณ Ave. 231, 02300, Vilnius, Lithuania)
    29/03/2023, 10:17
    Gamma-ray spectrometry
    Poster

    Authors (affiliation): 1. Rita Plukienฤ— (FTMC), 2. Elena Lagzdina (FTMC), 3. Darius Germanas (FTMC), 4. Kristina Mikalauskienฤ— (FTMC), 5. Marina Konstantinova (FTMC), 6. Artลซras Plukis (FTMC), 7. Arลซnas Gudelis (FTMC), 8. Vidmantas Remeikis (FTMC)

    One of important tasks for smooth and successful nuclear power plant (NPP) decommissioning process is optimization of nuclear facility metallic...

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  11. 90. Initial Gamma spectroscopy of ITER materials irradiated in the JET D-T neutron environment
    Dr Callum Grove (UKAEA, United Kingdom)
    29/03/2023, 10:19
    Gamma-ray spectrometry
    Poster

    Authors (affiliation): Callum L. Grove (UKAEA, UK), Chantal R. Nobs (UKAEA, UK), Lee W. Packer (UKAEA, UK), Nicola Fonnesu (ENEA, Italy), Ewa ลaszyล„ska (IPPLM, Poland), Jerzy W. Mietelski (IFJ, Poland), Mario Pillon (ENEA, Italy), Marilia I. Savva (NCSRD, Greece), Ion E. Stamatelatos (NCSRD, Greece), Anthony Turner (UKAEA, UK), Theodora Vasilopoulou (NCSRD, Greece), Rosaria Villari (ENEA,...

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  12. 109. Machine learning approach to the fast screening analysis of atmospheric radioactive aerosols
    Dr Miroslav Hรฝลพa (National Radiation Protection Institute (NRPI), Czech Republic )
    29/03/2023, 10:22
    Gamma-ray spectrometry
    Poster

    Authors: Miroslav Hรฝลพa 1, Lenka Dragounovรก 1, Mahulena Koล™istkovรก 1
    Affiliation: 1 National Radiation Protection Institute (NRPI), Czech Republic

    For atmospheric radioactivity monitoring, the emphasis is on two conflicting requirements: sensitivity, and timeliness of reported results. This paper describes a sensitive method for quick screening measurements of aerosol filters, using a HPGe...

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  13. 39. A benchmark for Monte Carlo simulations in Gamma-ray spectrometry โ€“ Part II: True coincidence summing correction factors
    Marie-Christine Lรฉpy (CEA-LNE-LNHB)
    29/03/2023, 10:55
    Gamma-ray spectrometry
    Oral

    Authors: M.-C. Lรฉpy 1, C. Thiam 1, M. Anagnostakis 2, C. Cosar 3, A. De Blas del Oyo 4, H. Dikmen 5, M.A. Duch 4, R. Galea 6, M.L. Ganea 3, M. Hult 7, S. Hurtado 8, K. Karfopoulos 9, A. Luca 3, G. Lutter 7, I. Mitsios 2, H. Persson 9, C. Potiriadis 10, S. Rรถttger 11, N. Salpadimos 10 M.I. Savva 12, O. Sima 3,13, T.T. Thanh 14, R. Townson 6, A. Vargas 4, T. Vasilopoulou 12, L. Verheyen 15, T....

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  14. 52. Uncertainty and covariance matrix of the coincidence summing correction factors due to decay data uncertainties
    Prof. Octavian Sima (University of Bucharest & IFIN-HH Bucharest, Romania)
    29/03/2023, 11:15
    Gamma-ray spectrometry
    Oral

    Coincidence-summing effects play a significant role in present-day gamma ray spectrometry. The evaluation of the corresponding correction factors (FC) and of the associated uncertainties is an important issue for the Gamma-Ray Spectrometry Working Group (GSWG) of the ICRM, being the subject of several intercomparisons.

    In this work the uncertainties and the covariance matrix of the FC...

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  15. 131. ICRM WG Meeting: Gamma-ray Spectrometry (GS)
    Marie-Christine Lรฉpy (CEA-LNE-LNHB), Octavian Sima (University of Bucharest & IFIN-HH Bucharest)
    29/03/2023, 11:35
    Oral
  16. 103. Estimating self-attenuation correction factors and their uncertainties using a simplified sample composition method
    Gamma-ray spectrometry
    Poster

    Authors (affiliation): 1. Alexander Mauring (Institute for Energy Technology, Norway), 2. Paul Mc Ginnity (IAEA Radiometrics Laboratory, Monaco), 3. Bojan Seslak (IAEA Terrestrial Environmental Radiochemistry Laboratory, Austria), 4. Barbara Nadalut (IAEA Terrestrial Environmental Radiochemistry Laboratory, Austria).

    The importance of self-attenuation correction factors in gamma-ray...

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  17. 50. Testing the low energy photon detection capability of three activity standardization installations from IFIN-HH (Romania)
    Aurelian Luca (IFIN-HH)
    Gamma-ray spectrometry
    Oral

    The recent participation of IFIN-HH/Ionizing Radiation Metrology Laboratory (LMRI) to the CCRI(II)-K2.Cd-109 comparison allowed to test four different installations from LMRI, used to perform absolute and relative activity standardizations: LSC, 4ฯ€ฮณ well type Ionization Chamber (IC), HPGe ฮณ-ray spectrometry system and Si(Li) X-ray spectrometry system. The present paper refers to the three...

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