22:49

Run 37 started.

D+ beam deuterium target. D+ beam energy is 2 MeV/u. (beam calc calculation is 1.9211 MeV/u)

Target density is about 1.3e12 at/cm2. FLuctuations between 1e12 and 1e13 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=30K, T2=31.9K.

Nozzle position x=-3.11, z=1.77 mm

YR09-Etarget pressure = 1.04e-10 mbar.

Cooler set value = 1126V, 15 mA. Read value = 1068V, 13.22 mA

Detector 4 is still a bit unstable in its leakage current but the data coming through looks good. Some crap is periodically written to disk when leakage current spikes. Attachment 1,2 for leakage currents.

23:30

Checks OK - high but managable rates from DSSD4

01:00

Checks OK - DSSD4 has settled down. Leakage current attachment 1

Ex energy histograms - attachment 2

X2go check on gas target shows density has dropped to 5e11 at/cm2 in last half an hour. 

03:56

Checks OK

DSSD had more issues but once more settled

Temps OK

Rates OK

DAQ continuing

06:00

Checks OK

08:00

We can now change to 1.5 MeV/u no storage mode enabled.