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Message ID: 786     Entry time: Fri Jul 28 17:06:02 2023
 Author: VK, IC. VM, LS, JNC 
 Status:  
 Type: Shift summary 
 Category: Ring Commissioning 
 Important:
 Subject: Test of the new optics (27-28 July) 
 Icon:  

Start of the modulator and laser at ~9h and hour later start the beam.

Working at 500.38 MHz to retrieve the previous state of the ring. Then switching to 500.33 MHz (assumed ring proper frequency).

- Optimization of the injection and ring (orbit, betatron/synchrotron oscyllations,  tune....)

- Load of the new optics with bigger MCF TDR_0.17_0.64_r56_0.4_sx_Dff41.2_DipMagnL.str : MCF=0.0231  chro=0/0. Optimization of the injector and the ring.

- Change the RF frequency to 500.25 MHz. Optimization of the injector nd the ring. The sufficient storage is obtained.

- Going to the 500.33 MHz and working on the orbit, energy and phase.

Observation: either energy or phase of the injector is not stable, it oscillates, so the amplitude of the synchrotron oscillations changes a lot (seen by the TbTX oscillation amplitude). Like this it is very difficult to find the proper energy and phase for the ring. We saved the trend (max TbTX). to be understand and worked out.

To be continued next week.

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