Aggregator

Log Number: 4504002Logbook(s): 

• HCLOG
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Entry Makers: dchriBody: 

Log Number: 4503999Logbook(s): 

• ELOG

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Log Number: 4503996Logbook(s): 

• HCLOG
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Log Number: 4503988Logbook(s): 

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Entry Makers: dchri

Log Number: 4503987Logbook(s): 

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Entry Makers: dchriBody: 

A3 interception was a good PV to track the possible Injector charge --> discharge events

(Fig. 1,2)
I've split up the plot into 3 boxes
Red box = late Swing shift
Blue box = mid Owl shift - tuning, orbit adjust, separation checks, etc...
Green box = mid/late Owl shift - after being down and making changes

What confuses me is that without making any changes in the Injector, we somehow ended up with a huge reduction in suspected charge up and A3 interception (along with overall interception)

I'm happy the problem is gone. I'm not happy that there is no clear explanation

Fig.

Log Number: 4503981Logbook(s): 

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Entry Makers: dchriBody: 

Log Number: 4503975Logbook(s): 

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Log Number: 4503970Logbook(s): 

• HCLOG
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Log Number: 4503965Logbook(s): 

• HCLOG
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Log Number: 4503957Logbook(s): 

• HCLOG
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Entry Makers: dchriBody: 

Log Number: 4503954Logbook(s): 

• HCLOG
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Log Number: 4503951Logbook(s): 

• HCLOG
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Entry Makers: dchriBody: 

Log Number: 4503945Logbook(s): 

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Entry Makers: dchriBody: 

Overall...

Much wider xD beam (just about everywhere....)

previous scan with 1E01 and 2E01 was with C beam. So comparisons at 1E01 & 2E01 are between xD & xC beam

* Also keep notice that previous harps from May 22nd were done between day & swing shift

Log Number: 4503944Logbook(s): 

• HCLOG
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Entry Makers: dchriBody: 

Log Number: 4503938Logbook(s): 

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Entry Makers: victorcBody: 

Log Number: 4503934Logbook(s): 

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Entry Makers: dchriBody: 

Log Number: 4503931Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Voltage is showing a little more noise than it was prior to 23 May. Finding the 4R -> 5L vertical orbit as far off as it was made me check to see if something was quietly mismatching. I couldn't find a certain cause but I did have to do quite a bit of correction to get the orbits looking normal again.

Edit: upgrading this to an Ops-PR mostly for notifications. I suspect this is another effect of the low-energy configuration that can't really be mitigated.

Log Number: 4503926Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Fig 1 shows 6E02 and 8E02 positions for B, D, C. ~0.4 mm difference between B and D at 6E translates into a difference of ~0.6 mm by 8E. C was extracted at -12 mm. At AE, B was extracted at -11.1 and D was recirculated at 6.1.

Fig 2 shows union of B and D positions at 6E02, and C being extracted at -11 mm. Pass 3 separator phase changes and vernier reductions, plus steering adjustments with 6S10H corrector. Positions downstream were cleaned up with corner steering and letting locks converge.

Log Number: 4503925Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17004Title:
Harp swipes + FOPT

Summary:
Routine optics scans.Duration:
20 minutes

Time Down:
25-May-2026 03:17

Time Up:
25-May-2026 03:37

Log Number: 4503924Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: jhoward
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM