23:20

JM thinks we cannot see 7Be locus on run 24. Possibly the right arm cannot get close enough.

Stopped moving right arm

Started moving left arm as previously: 32.52 mm -> 77.56 mm

Checked with bunched beam: not clipping. Possibly we could go further in - to be decided.

Started run 25

Target - 1.1E12 atoms/cm2

Beam - 1.2E7 pps

Root histograms refreshed.

Temps OK - attach

Stats OK - attach

All checks OK

Leakage OK - attach

Spectrum browser 1, 7, 8 attached

00:00

Run continues OK

Temps OK, Stats OK, Merger OK

01:15

Run continues OK

Temps OK - attached

Stats OK - attached

Merger OK

Rates OK - attached

Also attached current histograms

03:10

Motors now moving 32.77 -> 77.56 mm. Unclear why, should not affect results.

Target 1.1E12 atoms/cm2

Current 1.4E7 pps

Temps OK - attached

Rates OK - attached

All checks OK

Merger OK

03:37

7Be locus appears to be clearly visible. Attach 18

04:32

Temps OK

Rates OK

Merger OK

05:30

Temps OK

Rates - aida10 showes intermittently high rates around 10k. See attached. Seems to be linked to beam, already observed last night.

06:10

Temps OK

Rates OK - aida10 still counting 10k with beam, 300 without

Merger OK

Histograms attached

7:23- LB,PW

All checks OK, general behaviour consistent with previous observations. Beam current ~ 1E7 pps

8:40

All good, attachment 27 is the spectra. Beam current 1.3E7 pps.

9;50

All good, target very stable at 1E12 at/cm^2. Noticed also Aida01 and aida02 show same behaviour as aida10, but the maximum rate is between 1000-2000 (instead of the 10000-20000 of aida10)

Run 25 stopped 10:45, Run 26 started -> laser spectroscopy laser test