DynamiX, numerical tool for design of next-generation x-ray telescopes

Area of Science:

• Astrophysics
• X-ray astronomy
• Optical engineering

Background:

• Grazing-incidence X-ray telescopes are crucial for space-based observations.
• Telescope deformations and motion can significantly impact observational performance.
• Accurate simulations are needed to predict and optimize telescope capabilities.

Purpose of the Study:

• To introduce a novel Monte Carlo ray-tracing code for simulating X-ray telescopes with deformations.
• To assess the code's capabilities using Simbol-X and International X-ray Observatory (IXO) mission data.
• To evaluate the impact of telescope motion and deformations on performance metrics.

Main Methods:

• Monte Carlo ray tracing to simulate full photon trajectories.
• Inclusion of X-ray interactions, telescope motion, and deformations.
• Implementation of an image reconstruction method using optical sensor metrology to correct for detector drifts.

Main Results:

• The code successfully simulates X-ray telescope performance, including images and spectra.
• Demonstrated ability to analyze telescope performance (angular resolution, effective area, detector efficiency).
• The image reconstruction method effectively recovers angular resolution loss caused by telescope instability.

Conclusions:

• The developed simulation code is a versatile tool for studying X-ray telescope performance under realistic conditions.
• Accurate metrology and image reconstruction can mitigate performance degradation due to telescope instability.
• The code provides valuable insights for the design and optimization of future X-ray observatories like Simbol-X and IXO.