17:20
(Run 87 Junk and Run 88 does not exist)
Beam charge state set to 5+. Energy is ~1.06 MeV/u
Cooler voltage setpoint 590.3 V.
FC20 read value 589.07 V.
Right arm at 64.60 mm
Left arm IN at 36.54 mm
FakeMotion script running
horizontal beam position 3.5 mm (new overlap position with new beam)
vertical beam position 0.0 mm
Beam intensity 7.0e+6 particles.
Target density ~5e11 at/cm2
Beam is stored in the ring for ~20 seconds. From beam overlap tests ~ 75% of the beam is destroyed in this time.
Beam halo appears slightly reduced. This may be due to reduced intensity and reduced injection rate (20 s vs 5s previously)
18:00
FEE64 temperatures OK
ADC data item stats OK
per FEE64 Rate spectra OK
Beam intensity 1.17e+7 particles
Target density ~5.25E11 atoms/cm2
20:28
FEE64 temperatures OK
ADC data item stats OK
per FEE64 Rate spectra OK
Beam intensity 1.08e+7 particles
Target density ~3.84E11 atoms/cm2
23:58
Temps OK. Stats OK. Merger OK. Write to disk OK.
Waveforms attached.
Beam keeps going away due to "solenoid" issues.
On-line analysis screenshots attached.
Without beam, we see a clear noise spike in all detectors every 50-200 seconds randomly. This is *not* correlated with beam injection or dump.
Checkloaded - no effect. Beam back - no changes. |