Development of an automatic sample changer with variable temperature for small-angle neutron scattering at China Spallation Neutron Source

A small-angle neutron scattering (SANS) instrument at the China Spallation Neutron Source (CSNS) is an operating instrument for studying structures and inhomogeneities with dimensions ranging from 1 to 100 nm. Preparing multiple samples at once and measuring them sequentially is a common approach in...

Full description

Saved in:
Bibliographic Details
Published in:Review of scientific instruments 2023-07, Vol.94 (7)
Main Authors: Hu, Haitao, Dou, Mengjia, Zhang, Chunchun, Cheng, Hui, He, Chunyong, Ke, Yubin, Yuan, Bao, Bai, Bo, Sun, Yuan, Huang, Zhiqiang, Duan, Yufeng, Tong, Xin
Format: Article
Language:English
Subjects:
Computer Simulation
Control equipment
Controllability
Design optimization
Neutron Diffraction
Neutron scattering
Neutrons
Scattering, Small Angle
Scientific apparatus & instruments
Spallation
Synchrotrons
Systems design
Temperature
Temperature control
Thermal simulation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A small-angle neutron scattering (SANS) instrument at the China Spallation Neutron Source (CSNS) is an operating instrument for studying structures and inhomogeneities with dimensions ranging from 1 to 100 nm. Preparing multiple samples at once and measuring them sequentially is a common approach in SANS experiments to reduce neutron beamline wastes and increase experimental efficiency. We present the development of an automatic sample changer for the SANS instrument, including system design, thermal simulation, optimization analysis, structure design details, and temperature control test results. It features a two-row construction that can hold 18 samples on each row. The controllable temperature range is −30 to 300 °C. Furthermore, neutron scattering experiments on SANS at CSNS proved that this instrument has good temperature control performance and low background. This automatic sample changer is optimized for usage at SANS and will be offered to other researchers through the user program.
ISSN:0034-6748
1089-7623
DOI:10.1063/5.0138705