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   * First kick-off meeting with MESCO for cryostat installation: Apr. 10 at Kamioka    * First kick-off meeting with MESCO for cryostat installation at Apr. 10 at Kamioka. We will discuss about installation schedule of the end cryostats.
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   * We will release a specification document of duct shield in this week. Three duct shield will be fabricated in this FY.
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   * We will release a specification document of first three low-vibration cryocoolers for the duct shields in this week. Now we discuss about the cost of one-stage pulse-tube cryocoolers with the cryocooler company since they are under considering the price down of the PTC. If the price is acceptable, we will not chose solvey cryocoolers but chose PTCs.
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   * Fabrication (PF, IM, IMR) (Tomaru)    * Fabrication (PF, IM, IMR) (Tomaru): Suzuki-san and I had meeting with Mitaka-koki Co. for Cryo-pendulum fabrication. They have interesting in our cryo-payload fabrication and accepted the style that they fabricate the payload with R&D with us.

   * Moving Mass (Chen, Tomaru): I got stepping motor which can work at cryogenic temperature but it didn't have driver. Can we get it?

Cryogenic System Integration Meeting 2014 FY

2014.04.07

  • Management & Schedule (Suzuki)

    • First kick-off meeting with MESCO for cryostat installation at Apr. 10 at Kamioka. We will discuss about installation schedule of the end cryostats.
  • Installation (Tomaru, Suzuki)
  • Mirror Cryostat (Sakakibara, Kimura)
  • Duct Shield (Sakakibara, Kimura)
    • We will release a specification document of duct shield in this week. Three duct shield will be fabricated in this FY.
  • Cryocoolers (Tomaru, Suzuki)
    • We will release a specification document of first three low-vibration cryocoolers for the duct shields in this week. Now we discuss about the cost of one-stage pulse-tube cryocoolers with the cryocooler company since they are under considering the price down of the PTC. If the price is acceptable, we will not chose solvey cryocoolers but chose PTCs.
  • Room temperature SAS (Sekiguchi, Takahashi)
  • Cryo-Payload
    • Heat link (Sakakibara)
    • Design (PF, IM, IMR) (Hirose, Sekiguchi, Rahul)

    • Fabrication (PF, IM, IMR) (Tomaru): Suzuki-san and I had meeting with Mitaka-koki Co. for Cryo-pendulum fabrication. They have interesting in our cryo-payload fabrication and accepted the style that they fabricate the payload with R&D with us.

    • Moving Mass (Chen, Tomaru): I got stepping motor which can work at cryogenic temperature but it didn't have driver. Can we get it?
    • Recoil mass
    • Sapphire Mirror (Hirose)
    • Sapphire Mirror Suspension (Chen, Sascha, Yamamoto)
    • Test
  • Baffle and Auxiliary Optics Subsystem (Akutsu)

  • Minutes(K. Yamamoto)

KAGRA/Subgroups/CRY/CSIM/CSIM2014FY (last edited 2015-03-18 23:26:21 by KazuhiroYamamoto)