MLZ - Wiki - panda:measure https://wiki.mlz-garching.de/ 2026-05-14T09:50:08+00:00 MLZ - Wiki https://wiki.mlz-garching.de/ https://wiki.mlz-garching.de/_media/wiki:dokuwiki.svg text/html 2020-07-09T09:24:30+00:00 Anonymous (anonymous@undisclosed.example.com) helium https://wiki.mlz-garching.de/panda:measure:helium?rev=1594286670&do=diff Helium background Online calculator Nice calculator by Weiyi Wang CCR When using top loading cryostat (CCR), some amount of exchange gas is always needed. Without the exchange gas, you will reach base temperature of the cryostat very slowly. With decreasing temperature, you will also decrease the pressure of exchange gas inside. From 1bar to roughly 60 mbar: text/html 2020-10-05T17:13:10+00:00 Anonymous (anonymous@undisclosed.example.com) index https://wiki.mlz-garching.de/panda:measure:index?rev=1601917990&do=diff Measurement tips Typical inelastic (TAS) neutron experiment Before coming to the instrument: Know your system's lattice parameters and angles, and it's symmetry. Decide about the sample orientation - you get only one plane Create hkl-intensity-list (reflection list).