The Jodrell Bank CMB Telescopes

The Author's Role

I worked at Jodrell Bank from 1987 until 1999, first as a PhD student, and then as a post-doctoral researcher.

This page lists the telescopes with which I was involved, whilst at Jodrell Bank. I took part in the construction and/or operation of each of these. Other staff at Jodrell involved with these projects included:

Unfortunately the pages at JB describing these experiments have been taken offline. So I will attempt to provide more up-to-date information here.

The Telescopes

5 GHz CMB Interferometer

 
Location Jodrell Bank, UK
Type 2-element interferometer
Scanning Earth rotation (drift)
Frequency 5 GHz
Bandwidth 400 MHz
Primary beam 8° FWHM
l-range 71 ± 13, 97 ± 13, 184 ± 13
5 GHz interferometer   

10 GHz Radiometer

 
Location Teide Observatory
Type beam-switching radiometer
Scanning Earth rotation (drift)
Frequency 10 GHz
Bandwidth 800 MHz
Primary beam 5° FWHM
l-range 17 ± 7, 21 ± 12
10 GHz switched beam  
 

15 GHz CMB Radiometer

Location Teide Observatory
Type beam-switching radiometer
Scanning Earth rotation (drift)
Frequency 15 GHz
Bandwidth 1.5 GHz
Primary beam 5° FWHM
l-range 21 ± 12
15 GHz iswitched beam  

33 GHz CMB Radiometer

 
Location Teide Observatory
Type beam-switching radiometer
Scanning Earth rotation (drift)
Frequency 32 GHz
Bandwidth 3 GHz
Primary beam 5° FWHM
l-range 21 ± 12
33 GHz switched beam  
 

33 GHz CMB Interferometer

Location Teide Observatory
Type 2-element interferometer
Scanning Earth rotation (drift)
Frequency 32.5 GHz
Bandwidth 3 GHz
Primary beam 5° × 3° FWHM
l-range 109 ± 24, 212 ± 22
33 GHz interferometer  
 

Very Small Array, Tenerife

Location Teide Observatory
Type 14-element synthesis array
Scanning Tracking by antennas co-mounted on tip-table. Horns rotate E-W.
Frequency 31.5 GHz ± 5 GHz
Bandwidth 1.5 GHz
Primary beam 4°.5 (2° later for high l)
l-range 100 - 2000
VSA (6 antennas)  
SJM home Simon's home page