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Flash radiography with 24 GeV/c protons
Author(s) -
C. L. Morris,
E. Ables,
K.R. Alrick,
Maurice B. Aufderheide,
P. D. Barnes,
K.L. Buescher,
D.J. Cagliostro,
D. A. Clark,
D. Clark,
C. Espinoza,
E. N. Ferm,
Robert A. Gallegos,
S. Gardner,
J.J. Gómez,
G.A. Greene,
A. O. Hanson,
E. P. Hartouni,
G. E. Hogan,
Nicholas S. P. King,
K. Kwiatkowski,
R. P. Liljestrand,
Fesseha Mariam,
F. E. Merrill,
D.V. Morgan,
K.B. Morley,
C.T. Mottershead,
M. Murray,
Peter Pazuchanics,
James E. Pearson,
John Sarracino,
A. Saunders,
J. Scaduto,
A. E. Schach von Wittenau,
R. A. Soltz,
S. M. Sterbenz,
R. Terry Thompson,
Kevin R. Vixie,
M. D. Wilke,
D. M. Wright,
John D. Zumbro
Publication year - 2011
Publication title -
journal of applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.699
H-Index - 319
eISSN - 1089-7550
pISSN - 0021-8979
DOI - 10.1063/1.3580262
Subject(s) - radiography , wedge (geometry) , physics , flash (photography) , image resolution , hadron , spheres , position (finance) , resolution (logic) , computational physics , optics , nuclear physics , nuclear medicine , computer science , artificial intelligence , medicine , finance , astronomy , economics
The accuracy of density measurements and position resolution in flash (40 ns) radiography of thick objects with 24 Gev/c protons is investigated. A global model fit to step wedge data is shown to give a good description spanning the periodic table. The parameters obtained from the step wedge data are used to predict transmission through the French Test Object (FTO), a test object of nested spheres, to a precision better than 1%. Multiple trials have been used to show that the systematic errors are less than 2%. Absolute agreement between the average radiographic measurements of the density and the known density is 1%. Spatial resolution has been measured to be 200 μm at the center of the FTO. These data verify expectations of the benefits provided by high energy hadron radiography for thick objects.

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