Development of the new mode h maser at shanghai astronomical observatory

Zhang Yanjun; Zhang Weiqun; Wu Yidong; Caiyong; Zhai Zaocheng

Development of the new mode h maser at shanghai astronomical observatory

Zhang Yanjun^*, Zhang Weiqun, Wu Yidong, Caiyong, Zhai Zaocheng

^*Corresponding author for this work

CAS - Shanghai Astronomical Observatory

Research output: Contribution to conference › Paper › peer-review

Abstract

With the increasing number of cavity-tuned H masers in use around the world in time scales, it is necessary to develop the long-term stability and have a complete understanding of the environmental sensitivities of the masers. We got support form CAS (Chinese Academy of Sciences) to develop 2 H masers for time keeping purpose in 2003 and these 2 H masers were transported to NTSC (National Time Service Center) early in 2005.Here we will give the design ideas and performance of the high performance H masers. We are sure this SOHM-4 mode H maser's performance is better than 3E-15/day. The longer-term performance was testing at NTSC in local time scale system. This paper also gives the performance compared with Symmetricom H masers at the same laboratory and some report from BIPM.

Original language	English
Publication status	Published - 18 Mar 2008
Externally published	Yes
Event	22nd European Frequency and Time Forum, EFTF 2008 - Toulouse, France Duration: 23 Apr 2008 → 25 Apr 2008

Conference

Conference	22nd European Frequency and Time Forum, EFTF 2008
Country/Territory	France
City	Toulouse
Period	23/04/08 → 25/04/08

Cite this

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abstract = "With the increasing number of cavity-tuned H masers in use around the world in time scales, it is necessary to develop the long-term stability and have a complete understanding of the environmental sensitivities of the masers. We got support form CAS (Chinese Academy of Sciences) to develop 2 H masers for time keeping purpose in 2003 and these 2 H masers were transported to NTSC (National Time Service Center) early in 2005.Here we will give the design ideas and performance of the high performance H masers. We are sure this SOHM-4 mode H maser's performance is better than 3E-15/day. The longer-term performance was testing at NTSC in local time scale system. This paper also gives the performance compared with Symmetricom H masers at the same laboratory and some report from BIPM.",

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AU - Weiqun, Zhang

AU - Yidong, Wu

AU - Caiyong,

AU - Zaocheng, Zhai

PY - 2008/3/18

Y1 - 2008/3/18

N2 - With the increasing number of cavity-tuned H masers in use around the world in time scales, it is necessary to develop the long-term stability and have a complete understanding of the environmental sensitivities of the masers. We got support form CAS (Chinese Academy of Sciences) to develop 2 H masers for time keeping purpose in 2003 and these 2 H masers were transported to NTSC (National Time Service Center) early in 2005.Here we will give the design ideas and performance of the high performance H masers. We are sure this SOHM-4 mode H maser's performance is better than 3E-15/day. The longer-term performance was testing at NTSC in local time scale system. This paper also gives the performance compared with Symmetricom H masers at the same laboratory and some report from BIPM.

AB - With the increasing number of cavity-tuned H masers in use around the world in time scales, it is necessary to develop the long-term stability and have a complete understanding of the environmental sensitivities of the masers. We got support form CAS (Chinese Academy of Sciences) to develop 2 H masers for time keeping purpose in 2003 and these 2 H masers were transported to NTSC (National Time Service Center) early in 2005.Here we will give the design ideas and performance of the high performance H masers. We are sure this SOHM-4 mode H maser's performance is better than 3E-15/day. The longer-term performance was testing at NTSC in local time scale system. This paper also gives the performance compared with Symmetricom H masers at the same laboratory and some report from BIPM.

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T2 - 22nd European Frequency and Time Forum, EFTF 2008

Y2 - 23 April 2008 through 25 April 2008

ER -

Development of the new mode h maser at shanghai astronomical observatory

Abstract

Conference

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