Run 48 started. Everything is running again. We started at 3E13 at/cm2

D+ beam deuterium target. D+ beam energy is still 0.5 MeV/u. (beam calc calculation is 0.5143 MeV/u). See previous entry for beamcalc.

All four detectors positioned fully out and stationary, however we switched off detector #4.

Left potentiometer = -3.03mm (corresponds to x = 0, which is the more trustworthy value)

Right potentiometer = 1.74 mm (corresponds to y = -500, which is the more trustworthy value)

Ring cycle time is 10 seconds.

Cooler set value = 297.2 V, 8 mA. Read value = 296.7 V, 7 mA

All leakage currents look good (except dssd4, currently turned off)

Beam position. Vertical =0.0mm , Horizontal=0.0 mm

Data rate ~ 108kB/s

16:40  Change Gasjet target Y=-500 to Y=0
17:37  Change Gasjet target Y= 0 to Y= 500

20:30 We now take some time to optimize the areal density
20:30  Change Gasjet target Y= 500 to Y= 1000 (resulting in 2E12)
20:32  Change Gasjet target Y= 1000 to Y= 500 (resulting in 4E12)
20:33  Change Gasjet target Y= 500 to Y= 0 (resulting in 7E12)
20:35  Change Gasjet target Y= 0 to Y= -500 (resulting in 1.1E13)
20:37  Change Gasjet target Y= -500 to Y= -1000 (resulting in 1.8E13, still increasing and amazing for almost 1h)

21:48: Since approximately 20min its just going down systematically from a stable 2E13 to 6E12...) Lets try another round of optimization...
21:48  Change Gasjet target Y= -1000 to Y= -1500 (starting at 7E12 and resulting in 2E12)
21:49  Change Gasjet target Y= -1500 to Y= -1000 (starting at 2E12 and resulting in 6E12)
21:50  Change Gasjet target Y= -1000 to Y= -500 (starting at 6E12 and resulting in 9E12)
21:51  Change Gasjet target Y= -500 to Y= 0 (starting at 9E12 and resulting in 1.3E13 but dropping back to 7E12 within 3min)

21:54  Change Gasjet target. Leaving Y at 0, but moving X from 0 to -500 (starting at 6E12 and resulting in 3E12)
21:55  Change Gasjet target. Leaving Y at 0, but moving X from -500 to 0 (starting at 3E12 and resulting in 4E12)
21:56  Change Gasjet target. Leaving Y at 0, but moving X from 0 to +500 (starting at 4E12 and resulting in 6E12)

21:59  Change Gasjet target. Leaving X at 500, but moving Y from 0 to +500 (starting at 5E12 and resulting in 7E11...)
22:00  Change Gasjet target. Leaving X at 500, but moving Y from +500 to 0 (starting at 7E11 and resulting in 2E12)

Side comment: It seems no matter what we do, that there is a general decrease within the last 30min...

22:00  Change Gasjet target. Leaving X at 500, but moving Y from +500 to 0 (starting at 7E11 and resulting in 2E12)

Okay... No matter what we do... Its still decreasing...

22:03  Change Gasjet target. Leaving Y at 0, but moving X from 500  to 0 (starting at 1E12 and resulting in 2E12)
22:06  Change Gasjet target. Leaving X at 0, but moving Y = 0 from  to -500 (starting at 2E12 and resulting in 5E12
22:09  Change Gasjet target. Leaving X at 0, but moving Y = -500 from  to -1000 (starting at 5E12 and just randomly fluctuating within the next 15min... and more decreasing than increasing...)

22:25  Change Gasjet target. Leaving X at 0, but moving Y = -1000 from  to -1500 (starting at 1E12 and resulting in 2E12... )
22:31  Change Gasjet target. Leaving X at 0, but moving Y = -1500 from  to -2000 (starting at 1E12 and resulting in 8E11... ) Whaaaat????
22:32  Change Gasjet target. Leaving X at 0, but moving Y = -2000 from  to -1000 (starting at 9E11 and resulting in 4E12... ) Okaaaay lets wait and see...

01:00

Run stopped.

Final statistics very high. Over 10,000 counts for 3He and 3H, Over 5000 counts for proton.

Final energy histogram and xy plot on final attachments