iKAGRA ETM suspension Preparation; Current status

Schedule

• 12th- (2 weeks) Disassembling and Washing (favorable) 25th- (2 weeks) Assembling and Hanging 1th Feb- coil winding, transportation to the End, installation test 7th Feb- check 15th installation

Disassembling at Mitaka[Ohishi]

• finished. (12th-19th)

• [problem]
  • 2 nuts stuck: solved by Hirata-san
  • A Cu screw stuck: solved by Hirata-san

Washing [Hirata-san]

• most of the parts were washed.

• [problem]
  • ultra sonic washer broken 20th ordered on 22th(Fri) will be arrive at Mitaka on 26th(Tue)
  • 8 screws for adjusting the IM holding plate was dirty
    • Solution: order new screws (not ordered yet)

Missing parts

• coil bobbin [Takahashi-san]
• coil winding [students of Ando-lab]
• D-sub fixture plates [Takahashi-san]
• mirror container [Tatsumi-san]
• magnets for dummy mirror (4 ; 2-phi-L-5mm Nd magnets) [Ohishi]
• some screws in replace with Cu screws [Ohishi]

pico-motors and PZTs

coil driver

cables

Assembling

• On 21th, suspension frame, security frame, xy stages completed [Tomaru]

Hanging

Transfer Function Measurement