A variable temperature tank for solution SAXS in-situ measurement at BSRF
Article
Wang, C, Liu, G, Han, H et al. (2016). A variable temperature tank for solution SAXS in-situ measurement at BSRF
. 39(10), 10.11889/j.0253-3219.2016.hjs.39.100103
Wang, C, Liu, G, Han, H et al. (2016). A variable temperature tank for solution SAXS in-situ measurement at BSRF
. 39(10), 10.11889/j.0253-3219.2016.hjs.39.100103
Background: Nano-scale structure in solutions can be studied by small angle X-ray scattering (SAXS) techniques at synchrotron radiation facilities. For solution samples, no suitable in-situ variable temperature tank is available to meet the Beijing Synchrotron Radiation Facility (BSRF) 1W2A station's requirements. Purpose: This study aims to develop an in-situ variable temperature tank for solution samples according to the special requirements of SAXS and light parameters of 1W2A station at BSRF. Methods: The liquid samples are heated from both sides to reach a uniform status from 5℃ to 95℃. The solution thicknesses can be adjusted according to their compositions and can maintain a constant during the heating process, which is helpful to increase the data quality. The sample and corresponding background diluent are heated or cooled simultaneously and can be measured alternately. ANSYS was employed to verify the proper structure of the tank. Results: Thermoanalysis results show the rational design of this liquid sample tank, and the temperature was further calibrated for high precision. The structural changes of polyamideamine with temperature were measured using this tank. Conclusion: The proposed variable temperature tank meets the requirements of SAXS in-situ measurements for solution samples at BSRF. All expected functionalities have been satisfied.
