A BALLOON BORNE 19-GHZ RADIOMETER

被引：14
作者：
BOUGHN, SP
CHENG, ES
COTTINGHAM, DA
FIXSEN, DJ
机构：
[1] MIT,CAMBRIDGE,MA 02139
[2] PRINCETON UNIV,DEPT PHYS,PRINCETON,NJ 08544
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 1990年 / 61卷 / 01期
关键词：
D O I：
10.1063/1.1141867
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The design and performance of a 19-GHz one-horn maser radiometer is discussed. The antenna is a lensed, conical horn with 3° angular resolution. The radiometer is stabilized by chopping against an internal cold load. A novel chopping scheme allows continual calibration of maser gain fluctuations with only a modest penalty in noise. The method of calibrating this instrument is described. The instrument has been used to map the sky with an equivalent blackbody temperature sensitivity of 1 mK per 3°×3°resolution element.
引用
收藏
页码：158 / 164
页数：7
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