{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T11:10:55Z","timestamp":1760181055818,"version":"build-2065373602"},"reference-count":35,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2020,11,20]],"date-time":"2020-11-20T00:00:00Z","timestamp":1605830400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"State Key R&amp;D Program of China","award":["2016YFA0401303"],"award-info":[{"award-number":["2016YFA0401303"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11605279","11805259"],"award-info":[{"award-number":["11605279","11805259"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A speckle-based method for the X-ray crystal diffraction wavefront measurement is implemented, and the slope errors of channel-cut crystals with different surface characteristics are measured. The method uses a speckle scanning technique generated by a scattering membrane translated using a piezo motor to infer the deflection of X-rays from the crystals. The method provides a high angular sensitivity of the channel-cut crystal slopes in both the tangential and sagittal directions. The experimental results show that the slope error of different cutting and etching processes ranges from 0.25 to 2.98 \u03bcrad. Furthermore, the results of wavefront deformation are brought into the beamline for simulation. This method opens up possibilities for new high-resolution applications for X-ray crystal diffraction wavefront measurement and provides feedback to crystal manufacturers to improve channel-cut fabrication.<\/jats:p>","DOI":"10.3390\/s20226660","type":"journal-article","created":{"date-parts":[[2020,11,20]],"date-time":"2020-11-20T09:46:18Z","timestamp":1605865578000},"page":"6660","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Quantitative X-ray Channel-Cut Crystal Diffraction Wavefront Metrology Using the Speckle Scanning Technique"],"prefix":"10.3390","volume":"20","author":[{"given":"Lian","family":"Xue","sequence":"first","affiliation":[{"name":"Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201800, China"}]},{"given":"Hongxin","family":"Luo","sequence":"additional","affiliation":[{"name":"Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201800, China"}]},{"given":"Qianshun","family":"Diao","sequence":"additional","affiliation":[{"name":"Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China"},{"name":"University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China"}]},{"given":"Fugui","family":"Yang","sequence":"additional","affiliation":[{"name":"Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China"}]},{"given":"Jie","family":"Wang","sequence":"additional","affiliation":[{"name":"Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201800, China"}]},{"given":"Zhongliang","family":"Li","sequence":"additional","affiliation":[{"name":"Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201800, China"}]}],"member":"1968","published-online":{"date-parts":[[2020,11,20]]},"reference":[{"key":"ref_1","first-page":"651","article-title":"Development of a Double Crystal Monochromator","volume":"Volume 705","author":"Warwick","year":"2004","journal-title":"AIP Conference Series Eighth International Conference on Synchrotron Radiation Instrumentation, San Francisco, CA, USA, 25\u201329 August 2003"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"261","DOI":"10.1007\/BF01597779","article-title":"Fixed-exit channel-cut crystal X-ray monochromators for synchrotron radiation","volume":"39","author":"Hrdy","year":"1989","journal-title":"Czech. 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