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- W2015086832 abstract "A major contribution toward insuring successful performance and safety of solid propellant missiles such as the Polaris, Skybolt, and Minuteman is the early detection of defects which may exist either at a depth within the propellant or at the bond between the casing liner and the fuel. The absence of flaws is of the utmost importance if a consistent burning rate and accurate flight trajectory are to be assured. Furthermore, it is necessary to detect even the smallest discontinuity in order to evaluate its influence upon the performance of a missile and to permit useful statistical data to be compiled from which minimal inspection specifications can be prepared. The missile industry's increasing demand for extreme sensitivity of flaw detection on a production basis required a new type of x-ray equipment with a capability heretofore unavailable. The main requirements for high energy radiographic inspection of large solid propellant missiles include: (1) Suitable choice of radiation energy to provide a compromise between minimum absorption, useful field cone size, and film unsharpness. (2) A source size of small dimensions to insure good resolution. (3) An intense x-ray output so that exposure time may be relatively short. (4) A flexible system which can bemore » easily maneuvered within the confines of a radiation cell. A brief description of high energy xray characteristics is given and their relationship to the above requirements is established. The radiographic linear electron accelerator is shown to meet these requirements, and some comparisons are made with previously available high energy equipment. Some theory and details of a specific radiographic linear accelerator are described, together with several special features that extend the versatility of this equipment. (auth)« less" @default.
- W2015086832 created "2016-06-24" @default.
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- W2015086832 date "1963-03-01" @default.
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- W2015086832 title "RADIOGRAPHY OF LARGE MISSILES WITH THE LINEAR ELECTRON ACCELERATOR" @default.
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