Objectives The principle aim of the JRA is to enhance the capabilities of sample environment available at neutron facilities. We will extend the supported sample environment at the participating facilities and provide knowledge and expertise to the collaborating participants. The three key areas of endeavour are high pressure gas cells, ultra high temperature furnaces and gas handling systems. Have a look to the W21 Tasks section for complementary information! Click to enlarge the pictures . High pressure gas cells: Significant increase in accessible pressures, both inert gas and hydrogen Inert gases: Report – current technology Cells: 8 kbar, 10 kbar prototype Gas handling systems Cryogenic test system Hydrogen gas handling and pressure cells: Report – hydrogen-safe materials Cells: 4, 6 and 8 kbar Gas handling and other equipment Test regimes and safety issues Ultra high temperature furnaces: Increase sample size, stabilisation and allow the possibility of crystal growth In-situ measurement of conductivity and magnetic susceptibility Make these systems more accessible and user friendly. Objective: to build compact furnaces optimised for neutron scattering instruments and reaching 3000K (2000K today) • Containerless technics avoiding contamination - Aerodynamic levitation - Electromagnetic levitation (liquid metals), adapted to dielectric materials with electrostatic levitation technique Gas absorption systems: Mobile systems with user friendly integrated control systems Extension of pressure range and temperatures 1.5k – 600k and up Automated gas dosing systems: Volumetric: T < 300 K, P < 1.5 bar Volumetric and Continuous Flow: 500 K, 300 bar Vapour Mixing System 35bar with rest-gas analysis Gravimetric gas adsorption environment: Build high temperature neutron environment for magnetic suspension balance 500 K, 300 bar Build low temperature option for magnetic suspension balance 20 K, 1.5 bar

Coordinator: Zoe Bowden Forum: WP21 Sample environment FORUM (restricted access to JRA Partners) Administration of the JRAWP21 Website: WP21Admin (Access restricted)