Water Vapor Radiometer for ALMA
Paper i proceeding, 2009

Radiometer for the ALMA project from scratch in 18 months and will deliver 50 units within the next 18 months. The radiometer includes an Optical Relay, Mounting Frame as well as the Radiometer core module. The radiometer core include optics and calibration system as well as a schottky mixer based frontend and a filterbank back-end. These subsystems are supported by a thermal management subsystem, control and communication subsystem as well as a power subsystem. The system and subsystems will be described in the paper.


submillimeter waves

water vapor

heterodyne receiver



Schottky diode



S. Andersson

M. Wannerbratt

Peter Sobis

Chalmers, Teknisk fysik, Fysikalisk elektronik

Serguei Cherednichenko

Chalmers, Teknisk fysik, Fysikalisk elektronik

David Runesson

Terese Ekebrand

M. Krus

Christina Tegnander

U. Krus

Proc. of 20th International Symposium on Space Terahertz Technology, Charlottesville, USA, 20-22 April, 2009



Astronomi, astrofysik och kosmologi

Atom- och molekylfysik och optik

Elektroteknik och elektronik