A new radio spectral receiving system at lambda=13 mm in Urumqi Astronomical Station

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 毫米波和亚毫米波技术实验室

	A new radio spectral receiving system at lambda=13 mm in Urumqi Astronomical Station
	Zheng, X ; Zhou, Y ; Xu, Z ; Gong, J ; Li, S; Ken, JE
刊名	ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
	1999-06-01
卷号	137 期号:3 页码:537-541
关键词	instrumentation : detectors
ISSN号	0365-0138
英文摘要	We describe a new radio spectral receiving system installed on the 25 m radio telescope of the Urumqi Astronomical Station in China. The receiver is conventional cryogenically cooled 22 GHz system, with the front end being a low noise HEMT amplifier. An average noise temperature of the receiver is about 50 K. The back end, however, is less conventional; it is a surface acoustic wave chirp transform spectrometer (SAW CZT), used for the first time in radio astronomy. As the prototype spectrometer, this system has a bandwidth of 40 MHx and 39.06 KHz frequency resolution. The observational results of water vapor masers demonstrate the feasibility of the SAW CZT-based spectrometer as astronomical spectral line observations.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
收录类别	SCI
语种	英语
WOS记录号	WOS:000081789100011
公开日期	2013-02-01
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/8301]
专题	紫金山天文台_毫米波和亚毫米波技术实验室
作者单位	1.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 3.Chinese Acad Sci, Inst Acoust, Beijing 100080, Peoples R China 4.Chinese Acad Sci, Urumqi Astron Stn, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Zheng, X,Zhou, Y,Xu, Z,et al. A new radio spectral receiving system at lambda=13 mm in Urumqi Astronomical Station[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,1999,137(3):537-541.
APA	Zheng, X,Zhou, Y,Xu, Z,Gong, J,Li, S,&Ken, JE.(1999).A new radio spectral receiving system at lambda=13 mm in Urumqi Astronomical Station.ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,137(3),537-541.
MLA	Zheng, X,et al."A new radio spectral receiving system at lambda=13 mm in Urumqi Astronomical Station".ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 137.3(1999):537-541.