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

页码：158 / 164

页数：7

共 23 条

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