ISSN:
1572-9559
Keywords:
dual channel SIS receiver
;
quasioptical system
;
simultaneous observation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We developed a low noise dual channel receiver with 100GHz and 150GHz band, which is used to make the simultaneous observation with two bands. The SIS mixers are used in both bands. The constructed dewar for the receiver has a performance with a vacuum of 10−8torr and a temperature of 4.2K. The receiver noise temperature is 50K(DSB) for 100GHz band and 80K(DSB) for 150GHz band, respectively. In order to achieve the simultaneous observations, the quasioptical system is precisely designed, and also evaluated by measurements in the laboratory. The relative pointing offset between two bands is 3″. We have observed the various sources using the receiver since October 1998.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1022682602209
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