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This book describes the design and development of an instrument
called the Solar Vector Magnetograph or SVM. This instrument maps
the magnetic field of the solar active regions. The magnetic field
of solar active regions is responsible for the eruptive phenomena
on the sun which expel large amounts of high-energy particles and
radiation in the interplanetary space posing danger for human
activities in space. The careful measurement of solar magnetic
field is very important to track its evolution which may be useful
for forecasting the solar eruptive events. The instrument SVM was
developed by Dr. Sanjay Gosain during his Ph.D. at Udaipur Solar
Observatory, India for which he received best thesis award by
Astronomical Society of India. This book describes how the
high-cadence magnetic field measurements can be done by using a
tunable Fabry-Perot etalon and a polarimeter. This book is useful
for any solar astronomer who wishes to develop an instrument for
measuring solar magnetic fields or wishes to understand how solar
magnetic field is measured using Zeeman-effect diagnostics. The
techniques of optical polarimetry is also discussed in depth.
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