Installation of the superconducting gravimeter CT(#043) at Syowa Station, Antarctica

During the wintering period of the 44th Japanese Antarctic Research Expedition (JARE-44: February 2003 to January 2004), a new superconducting gravimeter CT(#043) with a cryocooler was installed and tested to replace the former TT70(#016) at Syowa Station, Antarctica. The CT(#043) has design sensiti...

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Bibliographic Details
Main Authors: Hiroshi Ikeda, Koichiro Doi, Yoichi Fukuda, Yoshiaki Tamura, Kazuo Shibuya
Format: Report
Language:English
Published: Research Facility Center for Science and Technology Cryogenics Division,University of Tsukuba 2005
Subjects:
superconducting gravimeter
GM refrigerator
diaphragm
monitoring system
Syowa Station
Antarctic
Dewar
Antarc*
Antarctica
Polar geoscience
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3149
http://id.nii.ac.jp/1291/00003149/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3149&item_no=1&attribute_id=18&file_no=1
Description
Summary:During the wintering period of the 44th Japanese Antarctic Research Expedition (JARE-44: February 2003 to January 2004), a new superconducting gravimeter CT(#043) with a cryocooler was installed and tested to replace the former TT70(#016) at Syowa Station, Antarctica. The CT(#043) has design sensitivity of 1nGal (1×10^(-11)m/s^2) to study the Earth's dynamics in tidal and longer-period bands. A new type of diaphragm was used to effectively isolate the vibration from the refrigerator cold-head and to prevent solid air contamination from entering the Dewar. A real-time remote monitoring system including a Web camera for diagnostics from Japan has also been installed.

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