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SUMMARY:The Current Status of TOrsion-Bar Antenna (TOBA) Experiment
DTSTART;VALUE=DATE-TIME:20220524T043000Z
DTEND;VALUE=DATE-TIME:20220524T063000Z
DTSTAMP;VALUE=DATE-TIME:20260710T164422Z
UID:indico-contribution-4850@indico.icrr.u-tokyo.ac.jp
DESCRIPTION:Torsion-bar antenna (TOBA) is a ground-based gravity gradiomet
 er proposed for measurement of gravity gradient fluctuations such as gravi
 tational waves and gravity gradient noise. TOBA consists of two perpendicu
 lar torsion pendulum\, and the low mechanical resonant frequency of torsio
 n pendulums enables us to measure gravity gradient of frequencies around 0
 .1 Hz. TOBA aims to achieve the sensitivity 10^(-19) / √Hz at 0.1 Hz. \n
 For the final sensitivity goal we are developing a prototype Phase-III TOB
 A in order to investigate technical issues and establish noise reduction s
 cheme. One of the key topic of Phase-III TOBA is cryogenic suspension syst
 em for the reduction of the thermal noise. Another key point is the readou
 t system with monolithic interferometer. We will show the current situatio
 n of the developments and future upgrade plans for further improvement.\n\
 nhttps://indico.icrr.u-tokyo.ac.jp/event/255/contributions/4850/
LOCATION:GatherTown and ZOOM
URL:https://indico.icrr.u-tokyo.ac.jp/event/255/contributions/4850/
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