Differences between revisions 4 and 5
⇤ ← Revision 4 as of 2018-09-10 10:02:09 →
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Editor: KeikoKokeyama
Comment:
← Revision 5 as of 2018-09-10 10:24:36 → ⇥
Size: 2160
Editor: KeikoKokeyama
Comment:
Deletions are marked like this. Additions are marked like this.
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 * IMC - MC REFL dust shield is under construction. Waiting for additional parts. Coil driver swap finished.
 * MZM - Both of the two MZI were locked, and the modulation indices measurement started. f2 (45MHz) was found to be too small. Uehara san will visit Kamioka on Tue to solve the problem. The 2nd MZI lock is loose because of the small range of the SR560. Looking for another option.		  * IMC - MC REFL dust shield is ready.
 * MZM - Realigned the 2nd MZI. Realigned and ready to the measurement.
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 * PEM - PSL (microphone, acc) were calibrated in the physical units.
 * IMMT2 - Coil1 did not work. The cable between the suspension and chamber was not connected. Ohishi-san will fix the cable soon.
 * Miyoki - The cable rack was installed under the beam tube in the PSL.		  * PEM - Two additional microphones were installed in MC REFL (by T Tanaka). Beating sound was found in PSL room. Yokozawa-kun will do some measurement. 1900Hz?
 * IMMT1/IMMT2 - TFs and coil balance are finished. Moved for the IFO alignment.
 * MCO - Coil balance was done again for the ASC control
 * RefCav -
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 * IMC - Finish the dust shield. Lock recovery. Power adjustment system will be installed on the REFL. ASC.  * IMC - Power adjustment system will be installed on the REFL. ASC.
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 * MZM - Better servo for the 2nd MZI. Mod index measurement. f2 and fIMC indices will be measured.
 * PEM - ?
 * HPL - FSS and IMC recovery. Replace one inch mirror to 2 inch at the periscope.
 * IMMT2 - cable will be fixed. TF measurement.
 * Miyoki-san - Water cooling beam dump.		  * MZM - Displacement and loop measurement for the 2nd MZI.
 * PEM - PSL sound and IMC sound
 * HPL - Heat sink type baffle installation on PSL. Beam dump for invac dump design. Beam shutter is ready except the solenoid driver (Aritomi-kun in Hongo).
 * Miyoki-san - Water cooling beam dump.
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 * Yamakoh in Kashiwa next week
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 *  * Sep 26th Wed

Regular Meeting 0910

Participants

Kokeyama, Ge, Green, Huang, Uehara

Announcement

  • Power outage recovery on 9/10
  • Due to the commissioning, we meet at 8:00 in the ctl room and mine work at 8:30
  • JPS on 14th Sep

Schedule for Phase-2

Report from the Last 2 weeks

  • IMC - MC REFL dust shield is ready.
  • MZM - Realigned the 2nd MZI. Realigned and ready to the measurement.
  • RAM - Experimental setup finished. Digital model and screens will be built.
  • HPL - High power laser safety treatment started. Beam dump made of heat sinks were ordered. Also for the coating. Laser power is 1 W, with the PMC locked fine. FSS is being prepared. IMC will be locked after that. Uehara, Akutsu, Kokeyama started preparing the in-vac beam dumps. High power test with IMC will be in Nov.
  • PEM - Two additional microphones were installed in MC REFL (by T Tanaka). Beating sound was found in PSL room. Yokozawa-kun will do some measurement. 1900Hz?
  • IMMT1/IMMT2 - TFs and coil balance are finished. Moved for the IFO alignment.
  • MCO - Coil balance was done again for the ASC control

  • RefCav -

Plans for the coming 2 weeks

  • IMC - Power adjustment system will be installed on the REFL. ASC.
  • RAM - Digital models and screens. RAM optimization by chancing HWP.
  • MZM - Displacement and loop measurement for the 2nd MZI.
  • PEM - PSL sound and IMC sound
  • HPL - Heat sink type baffle installation on PSL. Beam dump for invac dump design. Beam shutter is ready except the solenoid driver (Aritomi-kun in Hongo).
  • Miyoki-san - Water cooling beam dump. (ALS installation ongoing)

Visitors

Absence

  • Nakano-kun 10th-12th
  • Yamakoh in Kashiwa next week

Next meeting

  • Sep 26th Wed

KAGRA/Subgroups/IOO/Meeting/Meeting20180910 (last edited 2018-09-10 10:24:36 by KeikoKokeyama)