A cryogenic probe for in situ delivery of gaseous samples for neutron scattering

This laboratory note describes an optimized solution for the delivery of gaseous samples for neutron scattering measurements. The original design to accomplish this, though effective, was not ideal from a use and maintenance perspective - especially in view of the time-constrained nature of neutron scattering experiments. In response to user demand and a need for a more reliable solution the gas-delivery sticks have been significantly redesigned, with a number of innovations applied. Here we describe the resulting equipment and the operation of the gas sticks for condensation experiments, and we present results using this equipment and methodology.