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

Session

Radionuclide metrology techniques

RMT

28 Mar 2023, 10:25

Conveners

Radionuclide metrology techniques: 11 Poster contributions

• Ryan Fitzgerald (NIST)
• Christophe BOBIN (LNE-LNHB)

Radionuclide metrology techniques: 4 Oral contributions

• Christophe BOBIN (LNE-LNHB)
• Ryan Fitzgerald (NIST)

Radionuclide metrology techniques: 3 Oral contributions

• Ryan Fitzgerald (NIST)
• Christophe BOBIN (LNE-LNHB)

Radionuclide metrology techniques: 1 Oral contribution and ICRM WG Meeting

• Christophe BOBIN (LNE-LNHB)
• Ryan Fitzgerald (NIST)

Description

Radionuclide metrology techniques

1. Ongoing research at NPL for Radioactive Gas Metrology

Dr Steven Bell (NPL, UK)

28/03/2023, 10:25

Radionuclide metrology techniques

Poster

Presented is a poster with an overview of ongoing research projects at NPL
related to Radioactive Gas Metrology. Included are projects focused on the
development of (i) an IR laser spectroscopy technique for measuring 14CO2, and
(ii) a beta-gamma coincidence technique for measuring radioxenon and
radiokrypton. The first project is related to monitoring the ratio of 14C to
12/13C in the...

15. PRIMARY STANDARDIZATION AND MONTE CARLO MODELLING OF (243Am + 239Pu) BY MEANS OF A 4-PI (PC)- GAMMA COINCIDENCE COUNTING SYSTEM

Dr Mauro S. Dias (IPEN-CNEN/SP, Brazil)

28/03/2023, 10:27

Radionuclide metrology techniques

Poster

The procedure followed by the Nuclear Metrology Laboratory (LMN) at the Nuclear and Energy Research Institute (IPEN-CNEN/SP), in São Paulo, Brazil, for the primary standardization of a (243Am + 239Pu) solution is described. 243Am decays almost 100% by alpha transitions (with a very small branch, 10-9 %, of spontaneous fission), to 239Np with a Q value of 5438.8 keV, and a half-life of 7367...

38. Primary standardization of I-125 in aqueous form using a gamma well counter

Ryan Fitzgerald (NIST)

28/03/2023, 10:29

Radionuclide metrology techniques

Poster

The radionuclide iodine-125 (I-125) is an important agent in radiation therapy of various cancers, especially for brachytherapy. Reliable and safe application of I-125 activity require primary standardization as the foundation of traceability. The I-125 decay scheme, proceeding primarily through emission of two photons in coincidence, lends itself to primary standardization through coincidence...

48. Activity determination of 113Sn by LS methods

Dr Justyna Marganiec-Gałązka (National Centre for Nuclear Research, Radioisotope Centre POLATOM, Poland)

28/03/2023, 10:31

Radionuclide metrology techniques

Poster

Authors (affiliation): 1. Justyna Marganiec-Gałązka (POLATOM, Poland), 2. Ewa Kołakowska (POLATOM, Poland), 3. Edyta Lech (POLATOM, Poland), 4. Anna Listkowska (POLATOM, Poland), 5. Paweł Saganowski (POLATOM, Poland), 6. Zbigniew Tymiński (POLATOM, Poland), 7. Tomasz Ziemek (POLATOM, Poland)

Tin-113 decays by electron capture to three excited levels of In-113: 1029.73 keV - 0.00103%,...

63. Primary Internal Gas Counting at NRC

Dr James Renaud (National Research Council Canada)

28/03/2023, 10:34

Radionuclide metrology techniques

Poster

Radioactive noble gases and tritium are emitted from nuclear reactors when electricity is produced, accidents occur and as the result of nuclear weapons testing or use and hence are of great interest to the nuclear forensics communities. In addition, some radioactive noble gases serve critical medical functions, as is the case of Xe-133 in the diagnostic imaging for certain lung cancers. The...

66. Commissioning and validation of a high-pressure proportional counting system at ANSTO

Dr Michael L. Smith (ANSTO, Australia)

28/03/2023, 10:36

Radionuclide metrology techniques

Poster

Authors: 1. M.L. Smith, 2. W.M. van Wyngaardt, 3. A.H.H. Bowan, 4. C.M.B. Keevers, 5. M. Zarifi and 6. E.L. Clark (all from ANSTO)

Radionuclides have been standardized by 4π(PC)-γ coincidence counting at ANSTO using an atmospheric pressure proportional counter (PC) with conventional analogue electronics since the 1970s. The ANSTO Radionuclide Metrology (RM) group extended this capability by...

69. Standardization of Cd-109 by two methods at IFIN-HH

Dr Andrei Antohe (IFIN-HH, Romania)

28/03/2023, 10:38

Radionuclide metrology techniques

Poster

In 1988 LMRI from IFIN-HH carried out the first measurements of Cd-109 standardization within an international comparison organized by BIPM. The measurements were performed using the 4π(PC)ce-NaI(Tl)X coincidence counting and Ge(Li) γ-ray spectrometer.
This paper presents the results obtained by LMRI, IFIN-HH of Cd-109 standardization using two methods within the scope of an international...

72. Activity standardization of 64Cu by 4πβ(LS)-γ coincidence and TDCR counting method

Mr Agung Agusbudiman (University of Science and Technology (UST), South Korea)

28/03/2023, 10:40

Radionuclide metrology techniques

Poster

Authors (affiliation): 1. Agung Agusbudiman (UST, South Korea), 2. Kyoung Beom Lee (KRISS, South Korea), 3. Jong Man Lee (KRISS, South Korea), 4. Sang Hoon Hwang (KRISS, South Korea), 5. Byoung Chul Kim (KRISS, South Korea).

The copper-64 (64Cu) is one of the important radiopharmaceuticals used in nuclear medicine. The nature of its decay through three different modes, β+, β-, and electron...

78. α-γ digital anti-coincidence spectroscopy and its application to activity measurement of 225Ac

Dr Takahiro Yamada (Kindai University, Japan)

28/03/2023, 10:42

Radionuclide metrology techniques

Poster

Authors (affiliation): 1. Ken-ich Mori (Kindai Univ., Japan), 2. Takahiro Yamada (Kindai Univ., Japan), 3. Yasushi Sato (NMIJ/AIST, Japan), 4. Kotaro Nagatsu (QST, Japan), 5. Hidetoshi Kikunaga (Tohoku Univ., Japan).

Recently, 225Ac has been proposed for Targeted Alpha Therapy. In such medical applications and studies, quantitative activity measurements for evaluating the accumulation of...

84. COMPARISON OF CALIBRATION FACTORS FOR VINTEN IONIZATION CHAMBER SIMULATED USING FOUR MONTE CARLO METHODS

Ms Brittany Broder (National Institute of Standards and Technology (NIST), United States of America (USA))

28/03/2023, 10:44

Radionuclide metrology techniques

Poster

Monte Carlo (MC) simulations are a useful tool in benchmarking a range of calibration services, from confirming ionization chamber calibration factors to aiding the development of novel calibration systems. Different MC programs can be more tuned towards different applications and user populations. However, due to the difference in the underlying physics and transport mechanisms, different MC...

100. Digital coincidence counting system with 4πβ(PPC)-γ for the standardization of Co-60

Ms Minji Han (Korea Research Institute of Standard and Science, University of Science and Technology, South Korea)

28/03/2023, 10:47

Radionuclide metrology techniques

Poster

Authors (affiliation): 1. Minji Han (KRISS, South Korea, UST, South Korea), 2. Sanghoon Hwang (KRISS, South Korea, UST, South Korea), 3. A. Agusbudiman (KRISS, South Korea, UST, South Korea, BATAN, Indonesia), 4. J.M. Lee (KRISS, South Korea, UST, South Korea), 5. K.B. Lee (KRISS, South Korea, UST, South Korea), 6. B.C. Kim (KRISS, South Korea), 7. D.H. Heo (KRISS, South Korea).

Korea...

11. A bilateral comparison between LNHB and PTB to determine the activity concentration of the same 125I solution

Karsten Kossert (Physikalisch-Technische Bundesanstalt)

28/03/2023, 11:20

Radionuclide metrology techniques

Oral

Due to a constant demand for standards of the radionuclide 125I, LNHB and PTB decided to verify their calibration capabilities by means of a bilateral comparison to determine the activity concentration of the same 125I solution. As electron-capture radionuclide with a rather high atomic number, 125I must be regarded as difficult to measure. The situation is partly exacerbated by the fact that...

13. Implementation of digital selective sampling method (SESAM) on a 4πβ(PC)-γ(NaI) system

Haoran LIU (National Institute of Metrology)

28/03/2023, 11:40

Radionuclide metrology techniques

Oral

The selective sampling method (SESAM) was proposed by Müller from the BIPM, as an alternative to the β-γ coincidence counting. The SESAM does not need to introduce a coincidence resolving time during which accidental coincidences could be recorded. Correcting of these accidental coincidences is the trickiest part of β-γ coincidence counting. Compare to coincidence or anticoincidence...

19. Standardization of Tc-99m by digitizer-based 4πce(LS)-γ coincidence counting

Dr Marcell Takacs (PTB, Germany)

28/03/2023, 12:00

Radionuclide metrology techniques

Oral

Technetium-99m, the short-lived metastable nuclear isomer of Tc-99 is one of the most relevant medical radionuclides world-wide, due to its extensive use in medical imaging and functional studies of various organs. Nevertheless, from a metrological point of view, the absolute standardization of Tc-99m is far from straightforward due to its short half-life and its low energy conversion electron...

24. Comparative study of digital electronic systems available at IRA primary laboratory

Dr Teresa Duran (Institute of Radiation Physics, Switzerland)

28/03/2023, 12:20

Radionuclide metrology techniques

Oral

Authors: 1. M. Teresa Durán (IRA, Switzerland) 2. Youcef Nedjadi (IRA, Switzerland) 3. Frédéric Juget (IRA, Switzerland) 4. CLaude Bailat (IRA, Switzerland)

Digital electronic systems for primary activity measurement methods are gaining ground in the reference laboratories all over the radionuclide metrology community. A wide range of alternatives is available on the market and the choice...

70. Standardization of Rn-222 concentration using the multi-electrode proportional counter

Ms Rio Furukawa (National Metrology Institute of Japan (NMIJ), Japan)

28/03/2023, 14:10

Radionuclide metrology techniques

Oral

Authors: 1. Rio Furukawa (NMIJ, Japan), 2. Miroslaw Janik (NIRS, Japan), 3. Satoshi Kodaira (NIRS, Japan), 4. Seiya Manabe (NMIJ, Japan), 5. Tetsuro Matsumoto (NMIJ, Japan), 6. Chihiro Shimodan (NMIJ, Japan), 7. Yasushi Sato (NMIJ, Japan), 8. Hideki Harano (NMIJ, Japan).

Radon (Rn-222) and its progeny is regarded as the largest contributor to an effective dose for the public...

83. A Calibration procedure of beta-gamma coincidence measurements using four radioxenon spikes

Mr Boxue LIU (CTBTO, Austria)

28/03/2023, 14:30

Radionuclide metrology techniques

Oral

Authors: Boxue Liu, Richard Britton, Seokryung Yoon, Ashley Vaughan Davies, Nikolaus Hermanspahn, Gohla Herbert, Jonathan Bare, Peter Jansson, Martin Kalinowski
Affiliation: CTBTO, Vienna, Austria
The current address is Swedish Defence Research Agency, Stockholm, Sweden

The accurate measurement of radioxenon isotopes plays an important role in the radionuclide component of the...

88. The standardisation of 125I and 109Cd using gamma-X coincidences via the National Nuclear Array

Dr Robert Shearman (National Physical Laboratory (NPL), United Kingdom)

28/03/2023, 14:50

Radionuclide metrology techniques

Oral

Authors (affiliation): 1. Robert Shearman (NPL, UK), 2. Séan M. Collins (NPL, UK / University of Surrey, UK), 3. John D. Keightley (NPL, UK).

Cadmium-109 is one of the most challenging radionuclides to standardise; the pure electron capture decay from the ground state (I pi = 5/2+; T1/2 = 461.9 a) populates one delayed (I pi = 7/2+; T1/2 = 39.7 s) state only, followed by an 88.0 keV gamma...

98. Application of inductively coupled plasma tandem mass spectrometry for re-measuring the half life of long lived radionuclides

Dr Ben Russell (National Physical Laboratory, United Kingdom)

28/03/2023, 15:40

Radionuclide metrology techniques

Oral

Authors (affiliation): Emma Braysher (NPL, UK), Heather Thompkins (NPL, UK), Saskia Burke (NPL, UK), Hibaaq Mohamud (NPL, UK), Frankie Falksohn (NPL, UK).

A number of long-lived radionuclides suffer from half-life measurements that are outdated, have inconsistencies in the values obtained and/or limitations with regards to the uncertainty budget. When used in combination with absolute...

126. ICRM WG Meeting: Radionuclide Metrology Techniques (RMT)

Ryan Fitzgerald (NIST), Christophe BOBIN (LNE-LNHB)

28/03/2023, 16:00

Oral

96. Recalibration of the Reference System with Well Type Ionization Chamber for Ge-68, Ru-106 and Ra-223

Radionuclide metrology techniques

Poster

Authors (affiliation): LNMRI/IRD/CNEN
Recalibration of the Reference System with Well Type Ionization Chamber for Ge-68, Ru-106 and Ra-223

Ge/Ga-68, Ru-106 and Ra-223 are radionuclides of great importance due to their applications in medicine. Recently, LNMRI/IRD performed the primary standardization of these radionuclides with uncertainties smaller than 0.5%.
To ensure the supply of...