First On-Orbit Radiographs Demonstrate Feasibility of Space-Based Digital X-ray

First human radiographs acquired in space show on-orbit digital radiography is feasible. In-flight image quality was comparable to preflight (mean overall quality 4.86 vs 5.0, P>.99), but central radiograph positioning was worse (4.07 vs 4.95, P=.02).

• In-flight nondestructive testing enabled submillimeter visualization of internal equipment components.
• The COTS system functioned nominally postflight despite minor re-entry damage, and crew rated it easy to use.

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