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Figure 1
(a) Images of the blunt-impact loading apparatus. The stepper motor and clapper solenoid are attached by a threaded rod to a linear slide. The stepper is used for impact using a slow impact (as reported in this study) and the clapper solenoid was incorporated to be able to deliver `accelerative' loading. A force sensor with the impact head is attached to the other end of the linear slide. The base for a glass slide, on which the optic nerve is placed for impact, is mounted on a 3D positioning stage. The motor or solenoid moves the linear slide downwards to impact the sample and dwell (when activated). The sample is represented as a rodent brain rather than optic nerve for purely illustrative purposes. All samples in this study were optic nerves. (b) Averaged applied loading curves. Impact loading was applied at the pressure (or force) set points demonstrated in the figure. The impactor dwell time was 1 s.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 1| January 2019| Pages 89-95
https://doi.org/10.1107/S1600577518015035
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