Figure 6-4. Radiation-induced disruption in CTA. This figure shows the relationship between exposure to different energies of 56FE and 28Si particles and the threshold dose for the disruption of amphetamine-induced CTA learning. Only a single energy of 48Ti particles was tested. The threshold dose (cGy) for the disruption of the response is plotted against particle LET (keV/μm) (Rabin et al., 2007).
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2]