STP278

    Radiography of Large Solid Propellant Rocket Motors

    Published: Jan 1960


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    Abstract

    This paper presents experimental data on the radiography of propellant and information on the inspection of the Polaris motor. The X-ray energy range investigated was from 2 to 26 Mev. The half value layer thicknesses for propellant were determined to be 2.85, 6.5, and 7.7 in. for X-ray energies of 2000 kvp, 10 Mev, and 22 Mev, respectively. Experimental data with a penetrameter sensitivity of 0.25 per cent were obtained through 40 in. of propellant, using a 22-Mev betatron. The radiographic techniques with a 22-Mev betatron have been applied to the inspection of the Polaris motor. The use of a linear accelerator in X-ray inspection of propellant is feasible. This machine with its characteristically high output should materially reduce inspection time and costs.


    Author Information:

    Criscuolo, E. L.
    U. S. Naval Ordnance Laboratory, Silver Spring, Md.

    Holloway, J. A.
    U. S. Naval Ordnance Laboratory, Silver Spring, Md.

    Polansky, D.
    U. S. Naval Ordnance Laboratory, Silver Spring, Md.

    Dyer, C. H.
    U. S. Naval Ordnance Laboratory, Silver Spring, Md.


    Paper ID: STP46353S

    Committee/Subcommittee: E07.06

    DOI: 10.1520/STP46353S


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