After Andy pumped out the xfer line IV, the 15 K supply temperature measured at our target HX dropped from 16.2 K to 13.2 K. This gives us a massive 70% improvement in 15 K cooling power. At the conditions we had yesterday we had around 700 W of cooling power on the 15K circuit. Now we have 1200 W of cooling power, a 500 W improvement. We need it too, with the Moller load now on-line.
Thanks Andy for doing this, it helped a lot!