{'fraction_non_alphanumeric': 0.017625231910946195, 'fraction_numerical': 0.0, 'mean_word_length': 4.928571428571429, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Nested parabolic reflective optics for laser plasmas

Applications for laboratory soft-x-ray/VuV sources would benefit from the ability to collect a large energy bandwidth of radiation emanating from the very small source and redirect it into a well collimated beam without losing most of the incident radiation. Such optics would be beneficial to x-ray spectroscopy, x-ray lithography, diffractometry, and other applciations. We have been working to apply technology originally developed for astronomical x-ray telescopes to production of low cost replicated collimation optics for such x-ray/VuV instruments. Most of the steps in the production of these optics have previously accomplished with the larger astronomical optics but we want to reduce the size of these optics by at least an order of magnitude which introduces problems. In addition, very few copies of an x-ray telescope are made while we want to make hundreds of copies of our optics. This paper briefly discusses the design and fabrication of these small collimation optics and is a report on work in progress.