Neutron Time-Of-Flight Spectrometer Based on HIRFL for Studies of Spallation Reactions Related to ADS Project

TL;DR

This paper presents the development and testing of a Neutron Time-Of-Flight spectrometer at HIRFL for studying neutron production in spallation reactions relevant to the ADS project, including experimental validation and simulation comparisons.

Contribution

It introduces a new NTOF spectrometer tailored for ADS-related spallation studies, with detailed design, testing, and validation against experimental and simulation data.

Findings

Spectrometer performs well in test beams.

Data analysis procedures are established.

Neutron spectra agree with GEANT4 simulations.

Abstract

A Neutron Time-Of-Flight (NTOF) spectrometer based on Heavy Ion Research Facility in Lanzhou (HIRFL) is developed for studies of neutron production of proton induced spallation reactions related to the ADS project. After the presentation of comparisons between calculated spallation neutron production double-differential cross sections and the available experimental one, a detailed description of NTOF spectrometer is given. Test beam results show that the spectrometer works well and data analysis procedures are established. The comparisons of the test beam neutron spectra with those of GEANT4 simulations are presented.