Abstract
We developed a systematic method for optimizing the design of depth-graded multilayers for astronomical hard-x-ray and soft-gamma-ray telescopes based on the instrument's bandpass and the field of view. We apply these methods to the design of the conical-approximation Wolter I optics employed by the balloon-borne High Energy Focusing Telescope, using W/Si as the multilayer materials. In addition, we present optimized performance calculations of mirrors, using other material pairs that are capable of extending performance to photon energies above the W K-absorption edge (69.5 keV), including Pt/C, Ni/C, Cu/Si, and Mo/Si.
| Original language | English |
|---|---|
| Journal | Applied Optics |
| Volume | 38 |
| Issue number | 22 |
| Pages (from-to) | 4766-4775 |
| ISSN | 1559-128X |
| Publication status | Published - 1999 |