Mambo Bolometers at IRAM-30m
Description
The Mambo-1 and Mambo-2 bolometers have been developed at the [http://www.mpifr-bonn.mpg.de/div/bolometer/ Max-Planck-Institut fur Radiostronomie] in Bonn by the group of Ernst Kreysa.
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Status
Online
- Mambo1 is currently not available.
- Mambo2 is currently online
He-Refilling
Mambo1 or Mambo2 are currently refilled with He4 every 48 hours.
OnOff pixel
- Mambo1: pixel 1 is the most sensitive.
- Mambo2: pixel 20 is the most sensitive.
Dead Pixels
Instabilities
- Acceleration problem:
- Gradient noise: about 6 % of scans are affected (stat. between 20.03.2007 and 30.03.2007)
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Observing modes
The bolometers have two basic modes of observations:
On-Off: flux measurement with a single pixel on a point-like source, using the wobbler switching.
Mapping: On-the-fly map using the wobbler switching. By default the on-the-fly scanning is along the azimuth direction together with the wobbler switching. It is now possible to rotate the wobbler and the scanning direction to get rotated map.
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Data Reduction
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Contact Persons
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Useful Links
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