On GPS, the stable lead beam was very useful for preparating of photoluminiscence measurements in diamond requested by the solid state group later this year.
On HRS, the Wisard experiment aims to investigate physics beyond the standard model by a high precision measurement of the weak interaction studied via the beta-delayed proton decay of 32Ar. A bit less than half of the statistics was obtained before the target change on Monday, the increased proton current was important to achieve the needed yields.
Targets
target #823
yields decreased over time and instabilities were seen in the total and separated beam intensities
heated to 300A to confirm drop in yields likely corresponding to sintering
proton scan on user counts: moved the proton beam down, recovered the yield. could be that the target "sank" to the bottom.
repeated proton scan
removed and replaced by target #854
target #854
one day turnaround time charge preparation to loading to online and under vacuum - thanks to Valentina for fast charge preparation!
heavy outgassing once online
TODO: release curve on 32Ar yield confirmation (Sebastian and Isa)
target #855
mass scan finished at offline, to be mounted on GPS
proton scan on Friday TBC
schedule says: "11:00 Continue setup + proton scan (no yield checks on tape station)"
can test indium isomeric ratios on tape station if needed for RILIS setup
intracavity tripled TiSa, doubled dye
can optimize on FC490 this week once separator is setup, before central beamline