The radiographic edge scattering distortion

Previously described scattering based edge distortions in optical density scans obtained from a neutron radiographic knife-edge image have been here confirmed using analog Monte Carlo simulation. In an attempt to estimate the effects of additional object scatter on such artifacts, the effect on the edge response of diffusely incident neutrons has been determined both empirically and by Monte Carlo simulation. The diffuse neutron incidence has been found to diminish the relative magnitude of the distortion, offering explanation for the infrequent observation of the corresponding edge scattering halo artifacts. The potential of this edge distortion as a diagnostic indicator of the buildup factor in radiography is suggested and examined.

[1]  L. L. Carter,et al.  Particle Transport Simulation with the Monte Carlo Method; Prepared for the Division of Military Application, U.S. Energy Research and Development Administration , 1975 .

[2]  J. Duderstadt,et al.  Nuclear reactor analysis , 1976 .

[3]  A. A. Harms,et al.  Neutron image blurring in two dimensions , 1983 .

[4]  Neutron Image Simulation by Monte Carlo Methods , 1983 .

[5]  Brian K. Garside,et al.  Edge‐spread function in neutron radiography , 1972 .

[6]  G. Arfken.  Mathematical Methods for Physicists , 1967 .

[7]  S. J. Basham,et al.  DIMENSIONAL MEASUREMENTS OF CYLINDRICAL SPECIMENS USING NEUTRON RADIOGRAPHY. , 1970 .

[8]  The Photographic Action of Ionizing Radiations , 1970 .

[9]  E. W. Marchand.  From Line to Point Spread Function: The General Case , 1965 .

[10]  P. Von Der Hardt,et al.  Neutron Radiography Handbook , 1981 .

[11]  Scattering Point Spread Functions in Neutron Radiography , 1983 .

[12]  A. A. Harms,et al.  System Transfer Function Applications in Neutron Radiographic Object Scattering , 1984 .

[13]  R. Halmshaw,et al.  Physics of industrial radiology , 1966 .

[14]  Amos Notea,et al.  Point spread functions due to neutron scattering in thermal neutron radiography of aluminum, iron, zircaloy and polyethelene objects , 1982 .

[15]  A. Vary,et al.  Application of an electronic image analyzer to dimensional measurements from neutron radiographs. , 1973 .

[16]  G U Rao,et al.  The relationship between resolution and speed of x-ray intensifying screens. , 1978, Medical physics.