view article
Figure 1
Static speckle patterns from dried polystyrene particles (RS ≃ 1.015 µm and σR ≃ 7 nm) measured with two different collimation settings. The intensity statistics P(I) were analysed over the range 2.6 × 10−3 ≤ q ≤ 3.6 × 10−3 nm−1 which covers the structure peak. (a) Slits closed to 40 µm vertically and 20 µm horizontally. (b) Corresponding analysis of P(I) using equation (1[link]). For display purposes (unit area), P(I) has been multiplied by the mean intensity 〈I〉. (c) The speckle pattern of the same sample recorded with a larger beam, slits opened to 100 µm × 100 µm, illustrating the reduction in visibility. (d) Corresponding P(I) and analysis using equation (1[link]).

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 58| Part 2| April 2025| Pages 535-542
https://doi.org/10.1107/S1600576725001244
Follow J. Appl. Cryst.
Sign up for e-alerts
E-alerts
Follow J. Appl. Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS