Grid-Based Imaging of X-rays and Gamma Rays with High Angular Resolution
摘要
This chapter contains an overview of the basic principles of X-ray and gamma-ray imaging for astronomy that achieve high angular resolution with non-focusing optics. Specific topics include systems with single-grid masks, with pairs of grids known as bi-grid collimators, and with more than two grids known as multi-grid collimators. A discussion of each type is given along with advantages and limitations of the various design options and descriptions of actual implementations.