A VERY PRECISELY REGULATED COMPACT THERMOSTAT FOR SMALL-ANGLE NEUTRON-SCATTERING

Citation
M. Bonetti et P. Calmettes, A VERY PRECISELY REGULATED COMPACT THERMOSTAT FOR SMALL-ANGLE NEUTRON-SCATTERING, Review of scientific instruments, 68(11), 1997, pp. 4163-4168
Citations number
19
Categorie Soggetti
Physics, Applied","Instument & Instrumentation
ISSN journal
00346748
Volume
68
Issue
11
Year of publication
1997
Pages
4163 - 4168
Database
ISI
SICI code
0034-6748(1997)68:11<4163:AVPRCT>2.0.ZU;2-H
Abstract
We have built a simple two-stage thermostat for measuring small-angle neutron scattering from liquids or solids in the vicinity of a phase t ransition. The thermostat was tested between 20 and 75 degrees C. The long-term temperature stability varies within +/-0.2 and +/-0.5 mK, de pending on the set-point temperature. Positive and negative temperatur e steps of 0.5 mK and more can be obtained without overshoot. Small-an gle neutron spectra from a binary ionic mixture in the critical domain are also reported. (C) 1997 American Institute of Physics. [S0034-674 8(97)04611-X].