Image Quality in Neutron Radiography.
Abstract
The limitations and characteristics of the technique of thermal neutron radiography developed in RARDE, using a 5 MV Linac and the (X,n) reaction in beryllium, have been determined quantitatively using MTF values obtained for various converter screens. The effective source-size has been determined to be 80-90 mm diameter at 840 mm source-to-detector distance, and the implications of this large diameter on the choice of suitable converter screens are detailed. It is shown that with a small diameter neutron source, neutron radiographs of image sharpness similar to radiographs taken with 150 kV X-rays are possible; with the present equipment the image sharpness is no better than is obtained with gamma-rays from Cobalt-60, and in most practical applications will be far worse than on any conventional X- or gamma-radiographs.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1975
- Accession Number
- ADA008452
Entities
People
- R. Halmshaw