A very precisely regulated compact thermostat for small-angle neutron scattering

被引:10
作者
Bonetti, M [1 ]
Calmettes, P [1 ]
机构
[1] CEA SACLAY, CNRS, LAB LEON BRILLOUIN, F-91191 GIF SUR YVETTE, FRANCE
关键词
D O I
10.1063/1.1148362
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We have built a simple two-stage thermostat for measuring small-angle neutron scattering from liquids or solids in the vicinity of a phase transition. The thermostat was tested between 20 and 75 degrees C. The long-term temperature stability varies within +/-0.2 and +/-0.5 mK, depending on the set-point temperature. Positive and negative temperature steps of 0.5 mK and more can be obtained without overshoot. Small-angle neutron spectra from a binary ionic mixture in the critical domain are also reported. (C) 1997 American Institute of Physics. [S0034-6748(97)04611-X].
引用
收藏
页码:4163 / 4168
页数:6
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