Visiting GT Crystal Systems

Document #:

JGW-T1100629-v1

Document type:

T

Submitted by:

Eiichi Hirose

Updated by:

Eiichi Hirose

Document Created:

04 Oct 2011, 21:21

Contents Revised:

04 Oct 2011, 21:21

DB Info Revised:

04 Oct 2011, 21:21

Abstract:

After LSC-VIRGO meeting at Gainesville, FL, I flew to Boston and visited GT Crystal Systems (formally known as Crystal Systems Inc., now subsidiary of GT Advanced Technologies). I met Bill Ripley, Dave Joyce, and a couple of persons who recently joined the company. Absorption recently measured in PSC, University of Tokyo varies from sample to sample, and they were very interested in the results since they are now able to trace back to check how those samples were made. According to Bill, an A-axis sapphire window we ordered a few months ago will be delivered next February or March, and maximum size of C-axis sapphire window they can supply will be 200 mm in diameter. The size is smaller than 220 mm, which LCGT community thought was supposed to be supplied by the company.

Files in Document:

• Visiting GT Crystal Systems.docx (809.3 kB)
• Visiting GT Crystal Systems.pdf (209.5 kB)

Topics:

• Detector:Optics
• Activity:KAGRA

Authors:

• Eiichi Hirose

Keywords:

GT Crystal Systems sapphire absorption GT Advanced Technologies opics mirrors