Anthony R. – dewar wrangler extraordinaire!

It turns out there is a small cyclotron at LBNL! It is used to produce medical isotopes used for PET scans. Some of the BCSB staff were lucky enough to be invited on a tour of the cyclotron, which is in building 56, not too far away from our more familiar synchrotron in building 6.

Here it is at beamline 5.0.2, unpacked from the wooden crate, but not unpacked from its case yet. Install and commissioning in the beamline will begin in just a few weeks!

We measured the temperature at the sample during warming of the pin base, and preliminary tests so far show that the heat is not transferred to the loop during two minutes of base warming. Tests are continuing now to determine how well the warmer removes ice and frost from the bases.

Images of a crystal in a loop before and after using the pin base warmer:

During the January shutdown, we decided to test the two Q315R detectors that used to live in beamlines 5.0.1 and 5.0.2. Fortunately, they still work! Once Gemini is commissioned (at the end of this year, if all goes well) then we will have to take the Pilatus out of 5.0.1 and move it over to Gemini. Therefore, good to know that the Q315R is still good. Here it is being tested on the floor at 5.0.1.

Anthony installed the first pin base warmer on 5.0.2 today. We have to wait until the ALS has LN restored before we can test it. One thing to note: the people we spoke to at NE-CAT about their pin base warmer told us that it does not actually solve the icing issue completely. They still do see pins move on the goniometer after mounting. Hopefully the warmer will help a bit, though!