NASA NTRS · 19800000254
X-ray beam pointer
Abstract
Inexpensive, readily assembled pointer aims X-ray machine for welded assembly radiographs. Plumb bob used for vertical alinement and yardstick used to visualize X-ray paths were inconvenient and inaccurate. Pointer cuts alinement time by one-half and eliminates necessity of retakes. For 3,000 weld radiographs, pointer will save 300 worker-hours and significant materials costs.
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Nelson, C. W.. 1980-09-01. X-ray beam pointer. https://ntrs.nasa.gov/citations/19800000254
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