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EXPERIMENT INFORMATION

Cosmic Ray Effect on the Eyes of Rats Flown on Cosmos 782 (COS 782-12)
Principal Investigator
Research Area:
Radiation biology
Species Studied
Scientific Name: Rattus norvegicus Species: Rat Strain: Wistar

Description
Objectives:

A prediction was made in 1952 by C.A. Tobias that "light flashes" would be seen by dark-adapted persons in high flying aircraft and during space flight, as cosmic rays passed through and actuated the photoreceptors of the retina. Cellular damage in the rod free area of the fovea, the area of sharpest vision, could become a severe problem by limiting vision in space travelers. This experiment attempts to further data in the area of long-term, low-dose ocular responses.


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Publications
Corbett, R. et al.: Prolonged Fixation Studies for Spaceflight. Proceedings of the Electron Microscope Society of America, vol. 31, 1973, p. 332.

Philpott, D.E. et al.: Cosmic Ray Effect on the Eyes of Rats Flown on Cosmos 782. Final Reports of U.S. Experiments Flown on the Soviet Satellite Cosmos 782. S.N. Rosenzweig and K.A. Souza, eds., NASA TM-78525, 1978, pp. 352-381.

Philpott, D.E. et al.: Cosmic Ray Effects on the Eyes of Rats Flown on Cosmos No. 782, Experiment 207. Aviation, Space, and Environmental Medicine, vol. 49, no.1, 1978, pp. 19-28.

Corbett, R. et al.: Prolonged Fixation Studies for Spaceflight. Proceedings of the Electron Microscope Society of America, vol. 31, 1973, p. 332.

Keywords
Argon
Cell death
Cosmic radiation
Eye
Neon
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Data Information
Data Availability
Archive is complete. No data sets are available for this experiment. Please Contact LSDA if you know of available data for this investigation.

Parameters
Count, Macrophage, eye, rat, Microscopy
Damage, radiation, Lesions, eye, rat, Microscopy, observation
Morphology, Necrosis, eye, rat, Histology, microscopy
Radiation, dose, Provided, for study of synergism with weightlessness
Radiation, HZE particles, Detectors, plastic nuclear track (PNTDs, for high linear energy transfer [LET] particles), thermoluminescent (TLDs, for total dose of charged particles and gamma rays), Measurement
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Cosmos 782 11/25/1975 12/15/1975 20 days

Additional Information
Managing NASA Center
Ames Research Center (ARC)
Responsible NASA Representative
Ames Research Center LSDA Level 3
Project Manager: Helen Stewart
Institutional Support
National Aeronautics and Space Administration (NASA)
Alternate Experiment Name
C782-10
Protocol / Approach