Minutes of the ISC Meeting on 2015/10/5

14:00 - 15:00 @ SeeVogh

Participants: Miyakawa, Aso, Michimura, H. Yamamoto, Arai, Raffaele, Akutsu

Confirmation of the electronics preparation status (Michimura)

• Power Supply of DC PD
  • Use AC adaptors for iKAGRA. For bKAGRA, we will consider making dropper type DC supply.
• Differential to single end converter
  • There is one unfinished circuit in CLIO.
  • Ando-lab students will come around Oct. 26. Will ask them to complete the above one.
• RF Patch Panels
  • Already ordered
  • Conectors must be purchased soon.
• Cable layout
  • Confirm the actual rack locations on Oct. 13 - 16. (Michimura and Miyakawa)
• TTFSS pull up
  • We know what to do
  • Ando-lab people will work on it around Oct. 26

Comments

• Thorlabs PZT driver accepts only mono pole input
  • May need to add analog sum amplifiers. (LIGO did it)

Commissioning schedule (Aso)

• The updated task list is being entered into the MIF MS project file
• Aso will circulate the draft version for discussion soon.

Updates on the simulation (Hirose) and output optics design (Somiya)

• Hirose-san's report

• H. Yamamoto will come to Kamioka from Oct. 13 to 16. Some preliminary numbers will be available then.

• ITM transmission data is the missing piece. If we use the GT&T crystals, then we have to wait for the ETM transmission map.

• If Shinko-sha crystal is good, we will have the transmission data sooner.

AOB

• Rules for view port protection are considered serious in LIGO. We will need similar ones in KAGRA.

Next Meeting

Oct. 19(Mon) 14:00 - 15:00