Edge blurring in stacked X-ray film screen combinations
Abstract
The sensitivity and spatial resolution of stacked film screens for bremsstrahlung flash radiography of impliding, dense metal shells requires improvement. The spreading of the x-ray shadow of the edge of a uranium block in two film and screen combinations was measured. The SANDYL computer code, which models photon and electron scattering was employed to calculate the theoretical edge spreading in an array of films and screens. Experimentally, the uranium edge was spread to a width of 1.7 mm in the combination 0.15-mm-Ta/NDT9-XAR5, and 1.5 mm in the combination 0.25-mm-Ta/NDT6-XAR5. The theoretical calculation agreed with these results.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- February 1984
- Bibcode:
- 1984STIN...8429200L
- Keywords:
-
- Blurring;
- Bremsstrahlung;
- Metal Shells;
- Photographic Film;
- Radiography;
- Spatial Resolution;
- X Ray Imagery;
- X Ray Scattering;
- Computer Systems Programs;
- Densitometers;
- Implosions;
- Nuclear Weapons;
- Uranium;
- Instrumentation and Photography