08:45
Run 39 started.
D+ beam deuterium target. D+ beam energy is 1.0 MeV/u. (beam calc calculation is 1.0151 MeV/u)
Beam calc - Attachment 1
Target density is about 5e12 at/cm2
All four detectors positioned fully out and stationary.
Left potentiometer = 18.86 mm
Right potentiometer = 19.8 mm
Ring cycle time is 1 minute. Note we see some hydrogen in in the spectrum, this disapears after a few seconds.
Target T1=30.1K, T2=31.9K.
Nozzle position x=-2.96, z=1.72 mm
YR09-Etarget pressure = 2.55e-10 mbar.
Cooler set value = 575 V, 15 mA. Read value = 575.8 V, 12.9 mA
All leakage currents look good
Beam position. Vertical =0.0mm , Horizontal=-1.25 mm
Beam intensity ~1e8. We appear to lose intensity when reducing energy. It is still sufficient to for our purposes.
09.38
CRYRING vacuum and ambient temperature - attachments 2-3
09:58
All checks OK.
Target density is ~7e12 at/cm2
Data rate ~300kB/sec
All leakage currents look OK
After 1 hour we have 3671, 2515 and 1064 in each peak respectively. This is also logged on the google docs form in same tab as elog.
10:36
Temps OK
Data rate OK 326 kB/sec
Leakage currents stable
12:30
Temps ok - attach
Rates ok - attach
Merger ok - attach
14:20
Run stopped for energy change. |