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Proton Radiography

Los Alamos National Laboratory has used high energy protons as a probe in flash radiography for a decade.

Contact  

  • Beamline Scientist
  • Fesseha Mariam
  • (505) 667-3546
  • Email
  • Project Leader
  • Kathy Prestridge
  • (505) 667-8861
  • Email

Proton Radiography Capability Overview

pRad logoThe proton radiography project uses 800 MeV protons from the LANSCE accelerator facility to diagnose dynamic experiments, such as explosive and powder gun experiments, and pulsed-power implosions. Dynamic experiments occur in the Line C Dome.

pRad-dome.jpg

Fundamental Behavior of High Explosives

behavior-of-high-explosives-graph.jpgHalfpipe experiments examine the initiation, detonation front propagation and interactions of two different types of explosives. pRad images provide quantitative density information, including the shapes and positions of reflected shocks in the detonation products. This information allows modelers to better understand high explosive performance. 

Material Behavior under High Strain Rate Conditions

image10.pngHigh strain rate drive (~225 kbar) shows how manufacturing processes affect strength. The microstructure of additively manufactured (AM) materials may cause variations from the expected instability growth.

Reverse Ballistic Experiments

Density reconstruction of SiC fracture

image13.jpgExperiments performed for the Army Research Laboratory use the pRad powder gun to drive SiC armor into a tungsten rod (WHA).Aydelotte B. et al. (2019) Proton Radiography of Reverse Ballistic Impacts. In: Dynamic Behavior of Materials, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series.


 

 

Aydelotte B. et al. (2019) Proton Radiography of Reverse Ballistic Impacts. In: Dynamic Behavior of Materials, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series.

Tomography of Static Objects

Composed of hundreds of static proton radiographs, tomographic reconstructions provide three-dimensional density information.

The MATROSHKA is a whole body human phantom used for extra vehicular dosimetry experiments on the international space station.
Dettmann J, Reitz G, Gianfiglio GJAA. MATROSHKA—The first ESA external payload on the International Space Station. 2007;60(1):17-23.

Images of the internal structure of a fuel rod for Idaho National Laboratory.