Shielding design and construction for the XINGZHI cold neutron triple-axis spectrometer: integrating velocity selector, S-bender polarizer, and neutron guide
Abstract
The optimized design and construction of shielding for the velocity selector, S-bender polarizer, and neutron guide in the XINGZHI cold neutron triple-axis spectrometer have been successfully completed. The challenge of limited space available for XINGZHI has been met by a compact shielding structure, developed through Monte Carlo simulations and realized by purpose-built mechanical design, thus leaving more floor space for the spectrometer. An innovative lead-antimony alloy ensures rigidity for self-support, while optimized tolerances for gaps between mating blocks meet safety, machinability, and mounting requirements. Additionally, a long-distance alignment method has been implemented, facilitating the alternating installation of the neutron guide and shielding system. After six years of operation, this structure has been verified to meet radiation safety standards while maximizing available space, marking a significant advancement in neutron instrumentation in China and offering valuable methodologies for future development.
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BibTeX
@misc{zhang2026shielding,
title = {{Shielding design and construction for the XINGZHI cold neutron triple-axis spectrometer: integrating velocity selector, S-bender polarizer, and neutron guide}},
author = {Hongxia Zhang and Daye Xu and Florian Grünauer and Jinchen Wang and Yuntao Liu and Juanjuan Liu and Peng Cheng and Wei Bao},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.41288},
eprint = {2610.41288},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.41288},
}
RIS
TY - UNPB
TI - Shielding design and construction for the XINGZHI cold neutron triple-axis spectrometer: integrating velocity selector, S-bender polarizer, and neutron guide
AU - Hongxia Zhang
AU - Daye Xu
AU - Florian Grünauer
AU - Jinchen Wang
AU - Yuntao Liu
AU - Juanjuan Liu
AU - Peng Cheng
AU - Wei Bao
PY - 2026
DA - 2026/10/30
PB - arXiv
DO - 10.48550/arxiv.2610.41288
UR - https://arxiv.org/abs/2610.41288
AB - The optimized design and construction of shielding for the velocity selector, S-bender polarizer, and neutron guide in the XINGZHI cold neutron triple-axis spectrometer have been successfully completed. The challenge of limited space available for XINGZHI has been met by a compact shielding structure, developed through Monte Carlo simulations and realized by purpose-built mechanical design, thus leaving more floor space for the spectrometer. An innovative lead-antimony alloy ensures rigidity for self-support, while optimized tolerances for gaps between mating blocks meet safety, machinability, and mounting requirements. Additionally, a long-distance alignment method has been implemented, facilitating the alternating installation of the neutron guide and shielding system. After six years of operation, this structure has been verified to meet radiation safety standards while maximizing available space, marking a significant advancement in neutron instrumentation in China and offering valuable methodologies for future development.
ER -