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Author Yanagimachi, S. ♦ Takamizawa, A. ♦ Watabe, K. ♦ Hagimoto, K. ♦ Ikegami, T.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2009
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Frequency estimation ♦ Uncertainty ♦ Atomic measurements ♦ Standards development ♦ Frequency conversion ♦ Frequency measurement ♦ Metrology ♦ Hydrogen ♦ Masers ♦ Stability
Abstract National Metrology Institute of Japan (NMIJ) is developing two fountain frequency standards (NMIJ-F1, NMIJ-F2). NMIJ-F1 is in the phase of operation for continuous monthly report since February in 2008. The possibility of the reduction in the uncertainty caused by the collisional shift that mainly limits the total uncertainty of NMIJ-F1 is presented. The construction of NMIJ-F2 proceeded, and then the launched atomic signal was observed.
Description Author affiliation: Time Standards Section, Time and Frequency Division, National Metrology Institute of Japan (NMIJ), AIST Tsukuba Central 3, Ibaraki 305-8563, Japan (Yanagimachi, S.; Takamizawa, A.; Watabe, K.; Hagimoto, K.; Ikegami, T.)
ISBN 9781424435111
ISSN 10756787
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-04-20
Publisher Place France
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 518.84 kB
Page Count 3
Starting Page 1023
Ending Page 1025


Source: IEEE Xplore Digital Library