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. Author manuscript; available in PMC: 2011 May 11.
Published in final edited form as: Nucl Instrum Methods Phys Res A. 2011 May 11;638(1):171–175. doi: 10.1016/j.nima.2011.02.085

Fig. 1.

Fig. 1

Gatan 914 cryo-sample holder uses 3 mm diameter round grids, and Gatan 630 holder uses rectangular grids with a width of 3 mm. The anti-contaminator coaxially fits both holders. There are two holes on its side wall, which allow the X-ray beam to illuminate the sample grid and the diffraction signal to propagate without being obstructed.