Joint CCRI–IAEA Workshop on Neutron Beams at High Energy

𝐇𝐨𝐰 𝐢𝐬 𝐧𝐞𝐮𝐭𝐫𝐨𝐧 𝐦𝐞𝐭𝐫𝐨𝐥𝐨𝐠𝐲 𝐚𝐝𝐯𝐚𝐧𝐜𝐢𝐧𝐠 𝐭𝐨 𝐦𝐞𝐞𝐭 𝐠𝐫𝐨𝐰𝐢𝐧𝐠 𝐧𝐞𝐞𝐝𝐬 𝐢𝐧 𝐡𝐢𝐠𝐡 𝐞𝐧𝐞𝐫𝐠𝐲 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬?

This joint CCRI–IAEA workshop, held from 7 to 8 July 2025 at the IAEA Headquarters in Vienna, brought together 119 experts (including 33 remote participants) to explore the current and future needs for high energy neutron metrology across a wide range of applications.

The workshop addressed how metrology can support sectors such as space and aviation, radiobiology, hadron therapy, accelerator-based research, and radiation protection, with particular focus on the availability of suitable neutron facilities worldwide. Over two days, participants shared 18 scientific presentations and in-depth discussions on instrumentation, dosimetry, reference standards and nuclear data.

𝐂𝐡𝐚𝐩𝐭𝐞𝐫𝐬
0:00 Introduction to the Workshop – Andreas Zimbal (PTB, Germany)
04:35 Activities of the Section CCRI(III) - Neutron Metrology
19:15 Neutron Radiobiology - The need to bridge experimental gaps for future space missions
35:59 Radiation Exposure from Neutrons in Spaceflight and Aviation
46:59 Towards an ISO-Accredited fast neutron beam facility at iThemba LABS
58:05 Characterization of high-energy neutron standard fields and study of calibration methods
1:07:36 High energy mono-energetic and white neutron sources in RCNP
1:17:16 The neutron Time-of-Flight facility, n_TOF at CERN: Statis and perspectives
1:26:57 70 MeV~100 MeV Quasi-monoenergetic neutron reference fields in China
1:35:20 NEPIR (NEutron and Proton Irradiation) facility at INFN-LNL
1:48:04 Introduction of a new test area for neutron detection instruments with a dominant high-energy neutron component at PSI
2:00:05 n_ACT @ BDF - A high intensity & high energy neutron activiation station at the CERN Beam Dump Facility
2:09:53 Evaluation of spectrum and fluxes of the Chiplr facility for atmospheric neutron testing of electronics
2:19:31 Detector response functions for in situ high energy neutron spectronomy
2:31:55 Development of a portable monitor for cosmic ray neutron observations
2:43:19 A new GEANT4 fission physics model for simulation of high-energy neutron detection and measurements
2:54:22 Experiment for Double-Differential Cross Section Measurement with the Emission of Light Charged Particles from High Energy Neutrons on Carbon at n_TOF
3:05:46 Measurement of High-Energy Neutrons penetrating Shields from GeV protons on a Thich Copper Target
3:25:44 Eurados Talk on Improving the Description of Nuclear Reactions Between Nucleons and Light Nuclei
3:37:01 Neutron Metrology: Why and How?
3:55:52 Challenges and developments in Neutron Metrology for high energy workplace radiation fields
4:23:19 Quasi-monoenergetic high energy neutron fields: present status and future prospects
4:47:47 Instruments for High Energy Neutron Metrology
5:31:00 Neutron Reference Data for high energy applications
5:52:39 Uncertainties of MC calculations

Whether you are a metrologist, medical physicist, or scientist working in radiation applications, these presentations provide a comprehensive overview of the challenges and opportunities shaping the future of high energy neutron metrology.

🔗 Learn more about the CCRI(III) and BIPM’s work in neutron metrology: https://www.bipm.org/en/committees/cc/ccri/wg/ccri-iii-/2025-07-07

🌐 Visit the IAEA event page: https://conferences.iaea.org/event/410/

#Metrology #NeutronMetrology #HighEnergyNeutrons #RadiationSafety #IonizingRadiation #CCRI #IAEA #Traceability #Dosimetry #EURADOS #BIPM

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