低温恒温器
光束线
纳米探针
同步加速器
材料科学
发光
液氦
激发态
氦
光学
光电子学
纳米技术
物理
原子物理学
梁(结构)
超导电性
量子力学
纳米颗粒
作者
R. Steinmann,Gema Martínez‐Criado,Damien Salomon,Hugo Vitoux,R. Tucoulou,Julie Villanova,Sylvain Labouré,J. Eymery,Jaime Segura‐Ruiz
标识
DOI:10.1107/s1600577520007110
摘要
A helium mini-cryostat has been developed for the hard X-ray nanoprobe ID16B of the European Synchrotron to collect X-ray excited optical luminescence and X-ray fluorescence at low temperature (<10 K). The mini-cryostat has been specifically designed to fit within the strong space restrictions and high-demanding mechanical constraints imposed by the beamline to provide vibration-free operation and maximal thermal stability. This paper reports the detailed design, architecture and technical requirements of the mini-cryostat, and presents the first experimental data measured using the cryogenic equipment. The resulting cryo-system features ultimate thermal stability, fast cool-down and ultra-low vibrations. The simultaneous X-ray fluorescence and X-ray excited optical luminescence data acquired from bulk GaN and core/shell InGaN/GaN multi-quantum wells validated the excellent performance of the cryostat with ultimate resolution, stability and sensitivity.
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