Speaker
Description
In 2015, Taiwan Photon Source (TPS) successfully completed a significant project involving the installation of a crucial 600-meter-long liquid nitrogen (LN2) transfer line specifically designed for beamline endstations. This line previously supplied liquid nitrogen to a maximum of 24 beamline endstations. Subsequently, in 2018 and 2019, Beamline Endstation 13A was inaugurated, focusing on advanced and general studies of biological structures and structural kinetics in solution or condensed forms under environmental simulations. The research spans from atomic to micrometer scales with a time resolution ranging from microseconds to minutes. To meet the specific requirements of Beamline Endstation 13A, we independently designed and manufactured a dedicated LN2 transfer line to supply liquid nitrogen to the double-crystal monochromator (DCM), effectively addressing crystal thermal deformation issues. Additionally, we innovatively designed a keep-full device to replace the phase separator of the chiller. This paper will provide a detailed introduction to various aspects of this transfer line, including pipeline design, performance testing, the keep-full device, pressure reducer, noise reduction measures, and heat-load measurements.
