Workshop on Neutron Beams at High Energy: Applications and Metrology
7 to 8 July 2025
A joint CCRI-IAEA workshop was held at the IAEA Headquarters in Vienna, Austria, from 7 to 8 July 2025. The focus of the meeting was to discuss the needs of high energy neutrons in various applications and how neutron metrology can address them, with the particular focus of finding available and suitable facilities in the world. The workshop attracted 119 participants (33 remotely) having interests in different fields related to high energy neutrons, who came together for 2 days filled with high level scientific presentations and extensive discussions. The topics of the presentations covered all fields in which high energy neutrons play an important role: space and aviation applications, radiobiology, high energy accelerator facilities, fast and high energy neutron facilities, metrology, reference standards, dosimetry, and instrumentation.
During the first day of the meeting, 18 presentations were given demonstrating the needs and challenges related to high energy neutrons. The second day was dedicated to more general overview talks, focused on facilities for the production of monoenergetic and broad neutron fields, on instrumentation and on nuclear data. A clear result from the presentations and discussions was the worldwide need for standards for high energy neutrons and better access to well characterized facilities being able to produce quasi-monoenergetic and broad energy range neutron fields.
A report summarizing the conclusions is under preparation and will be published soon. The workshop was followed by a meeting of the Working Group 11 “high energy radiation fields” of EURADOS and the 2025 meeting of the Section III “neutron measurements” of the Consultative Committee for Ionizing Radiation. Both committees continued the discussions started during the workshop with special emphasis on their specific needs.
Working documents
Information Sheet
IAEA activities in support of development and utilization of neutron sources
V. Semkova
30/07/2025
Neutron Radiobiology - The need to bridge experimental gaps for future space missions
C. Vandevoorde
30/07/2025
Radiation Exposure from Neutrons in Spaceflight and Aviation
D. Matthiä
30/07/2025
Towards an ISO-accredited fast neutron beam facility at iThemba LABS
Z. Ndabeni
30/07/2025
Characterization of high-energy neutron standard fields and study of calibration methods
A. Masuda
30/07/2025
High energy mono-energetic and white neutron sources in RCNP
T. Shima
30/07/2025
The neutron Time-of-Flight facility, n_TOF at CERN: Status and perspectives
A. Manna
30/07/2025
70 MeV~100 MeV Quasi-monoenergetic neutron reference fields in China
J. Yu
30/07/2025
NEPIR (NEutron and Proton Irradiation) facility at INFN-LNL
P. Mastinu
30/07/2025
Introduction of a new test area for neutron detection instruments with a dominant high-energy neutron component at PSI
S. Mayer
30/07/2025
A high intensity & high energy neutron activation station at the CERN Beam Dump Facility
M. Bacak
30/07/2025
Evaluation of spectrum and fluxes of the ChipIrfacility for atmospheric neutron testing of electronics
C. Cazzaniga
30/07/2025
Detector response functions for in situ high energy neutron spectrometry
T. Hutton
30/07/2025
Development of a portable monitor for cosmic ray neutron observations
A. Cirillo
30/07/2025
Challenges and requirements for neutron dosimetry at laser-driven accelerators
A. Cimmino
30/07/2025
A new GEANT4 fission physics model for simulation of high-energy neutron detection and measurements
P. Lee
30/07/2025
Experiment for Double-Differential Cross Section Measurement with the Emission of Light Charged Particles from High Energy Neutrons on Carbon at n_TOF
M. Dietz
31/07/2025
Measurement of High-Energy Neutrons penetrating Shields from GeV protons on a Thick Copper Target
E. Lee
30/07/2025
EURADOS tak on improving the description of nuclear reactions between nucleons and light nuclei, notably C-12, N-14 and O-16
M. Petit
30/07/2025
Challenges and developments in Neutron Metrology for high energy workplace radiation fields
F. Pozzi
30/07/2025
Quasi-monoenergetic high energy neutron fields: present status and future prospects
A. Buffler
30/07/2025
CCRI(III)