| Name: | Koushal Vadodariya |
| Affiliation: | U R Rao Satellite Centre |
| Conference ID : | ASI2024_642 |
| Title : | Design and optimization of Wolter-I type X-ray optics: A MATLAB based iterative method and ray-tracing approach |
| Authors : | Koushal Vadodariya1, Ankur Kushwaha1, Radhakrishna V1, Rwitika Chatterjee1 |
| Authors Affiliation: | 1 Space Astronomy Group, U R Rao Satellite Center, ISRO, Bengaluru-560037, India |
| Mode of Presentation: | Poster |
| Abstract Category : | Facilities, Technologies and Data science |
| Abstract : | Modern X-ray astronomy is majorly driven by innovative photon detection systems with high sensitivity. In order to realize an X-ray instrument with high sensitivity, focusing optics is used which increases the net photon collection area and also enables direct imaging of the sky plane. The most common and feasible optics design employs concentrically nested paraboloid mirror shells followed by hyperboloid shells, collectively known as Wolter-1 optics design. The overall design of X-ray optics is optimized with a set of parameters which characterize the performance of an X-ray telescope. We develop a MATLAB based tool to derive critical parameters of Wolter-I type optics to make use of it for imaging as well as concentrators in X-ray astronomy applications. The tool comprises of an iterative algorithm to find design parameters of each mirror shell using sensitivity requirements and physical constraints. Furthermore, we analyse the vignetting functions, angular variation of effective area and off-axial rays focusing performance. Subsequently, these design parameters are utilized in a MATLAB ray-tracing code where small perturbations are incorporated to simulate the performance of X-ray optics mirror module along with focusing on detector plane. The results of these methods are verified and compared with some of the currently operating X-ray telescopes. This aids us in designing and optimizing upcoming X-ray astronomy telescope of instruments like Soft X-ray Polarimeter, being developed at SAG Space Astronomy Group of URSC. |
