CREX optics commissioning

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CREX optics commissioning

Sieve pattern check with Tune P (Dec. 7)

  • Initial tune:

Tune P (LQ1: 271.550 LQ2: 934.273 LQ3: 1032.948 RQ1: 271.666 RQ2: 925.955 RQ3: 1024.103)
p0: LHRS 2.18352 (Hall Probe: -0.7777) RHRS 2.18350 (HP: -0.7998)
Septum: 763.093 A
Raster off, Carbon 0.2%
Sieve pattern well identified (https://logbooks.jlab.org/entry/3748193)
LHRS: 2420 RHRS: 21510

Septum tuning to central ray (Dec. 7)

Inner edge search (Dec. 7)

Q1/Q3 scan, Width minimization

dp scan

Qsq measurement