How ALMA is calibrated: I Antenna-based pointing, focus and amplitude   calibration
  Here we will discuss which calibrations are needed, how to perform them and how the calibration affect ALMA observations. This first part concentrates on aspects related to a single antenna, namely antenna pointing (including the antenna metrology), focusing, and the amplitude calibration, we also mention the bandpass calibration for single measurements. 
T. van Kempen and S. Corder and R. Lucas and R. Mauersberger
astro-ph.IM