Study of a cooling time reduction method for cryogenic laser interferometric gravitational wave detectors

• Project/Area Number: 22740148
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: UCHIYAMA Takashi 東京大学, 宇宙線研究所, 助教 (60361656)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 重力波 / レーザー干渉計 / 低温 / 鏡

Research Abstract

We have developed new method to decrease time for cooling mirror suspension systems of laser interferometric gravitational wave(GW) detectors. The key point of the method is heat transferring using high efficiency radiation. If the method will be applied to the laser interferometric GW detector KAGRA which is constructing in Kamioka mine, the cooling time could be decreased to 28 days from 50 days.

Research Products

• [Journal Article] Reduction of Thermal Fluctuations in a Cryogenic Laser Interferometric Gravitational Wave Detector (2012)
  • Author(s): T.Uchiyama, et al.
  • Journal Title: Physical Review Letters Volume: 108 Issue: 14 Pages: 141101-141101
  • DOI: 10.1103/physrevlett.108.141101
  • Peer Reviewed
• [Journal Article] Experimental Demonstration of Cryogenic Mirror Technique -Achievements of CLIO- (2011)
  • Author(s): 内山隆、三代木伸二
  • Journal Title: TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Volume: 46 Issue: 7 Pages: 392-399
  • DOI: 10.2221/jcsj.46.392
  • NAID: 10029655774
  • ISSN: 0389-2441, 1880-0408
  • Peer Reviewed
• [Journal Article] Reflectivity Measurements of Metals for LCGT Thermal Radiation Shields at Cryogenic Temperature and Wavelength of 10 .MU.m (2011)
  • Author(s): 榊原祐介
  • Journal Title: TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Volume: 46 Issue: 7 Pages: 434-440
  • DOI: 10.2221/jcsj.46.434
  • NAID: 10029655895
  • ISSN: 0389-2441, 1880-0408
  • Peer Reviewed
• [Presentation] 低温重力波レーザー干渉計CLIOの技術成果 (2012)
  • Author(s): 内山隆
  • Organizer: 春季第59回応用物理学関係連合講演会
  • Place of Presentation: 早稲田大学
  • Year and Date: 2012-03-15
• [Presentation] 低温重力波レーザー干渉計CLIOの技術成果 (2012)
  • Author(s): 内山隆
  • Organizer: 春季第59回応用物理学関係連合講演会
  • Place of Presentation: 早稲田大学(招待講演)
  • Year and Date: 2012-03-15
• [Presentation] CLIOの反射鏡低温化技術 (2011)
  • Author(s): 内山隆
  • Organizer: 春季第58回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学
  • Year and Date: 2011-03-24
• [Presentation] CLIOの反射鏡低温化技術 (2011)
  • Author(s): 内山隆
  • Organizer: 春季第58回応用物理学関係連合講演会
  • Place of Presentation: 神奈川県、神奈川工科大学
  • Year and Date: 2011-03-09