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2012/09/18

1010 Fed Cricket 3 pellet.
1040 Filled LN2 cold trap full.
1500 Filled IVC with 4.6 mbar of N2 exchange gas.
1540 Evacuate 1 K pot and main bath. Overpressure main bath with helium gas. There is no need for a leak check at this point in time as we are pretty sure we do not see a leak at this temperature (mixing chamber temperature 227 K), and even if there was a leak, we would not be able to pinpoint its location. Performing a leak check when blowing out the nitrogen from the main bath tomorrow will yield better dividends.
1550 Begin nitrogen transfer.
1710 Nitrogen transfer complete. Attached ping-pong ball.
1720 Fed Cricket 4 pellets.