Experimental in situ investigation of the effects of protons, ultraviolet radiation, and temperature on thermophysical properties of solar cell filters and other spacecraft materials

In situ determination of effects of ultraviolet radiation, solar wind protons, and temperature on thermophysical properties of solar cell filters and other spacecraft material

Effects of high energy simulated space radiation on polymeric second-surface mirrors

A radiation effects experimental program was performed, in which second surface mirror type thermal control coatings were exposed to ultraviolet radiation, electrons, and protons simultaneously. Stability was assessed by making periodic spectral reflectance measurements in situ (and in air after testing for comparison). Solar absorption coefficients were derived by computer. Many of the exposed materials showed large amounts of degradation in reflectance absorptance, principally due to the electron exposure. A series of tests was conducted, leading to the identification of a modified second surface mirror that shows considerable improvement and promise for stability during thermal control applications in a charged particle space radiation environment

Study of space environment effects on thermal control coatings - Dependence of thermal control coating degradation upon electron energy Final report

Hemispherical spectral reflectance in vacuum for thermal coating degradation using electron energ

Proton and Electron Effects in Thermal Control Materials Final Report

Radiation effects of electrons and protons on reflectance and degradation properties of specular and diffuse thermal control material

Simulation of space radiation effects on polyimide film materials for high temperature applications

Space environment effects on candidate materials for the solar sail film are determined. Polymers, including metallized polyimides that might be suitable solar radiation receivers, were exposed to combined proton and solar electromagnetic radiation. Each test sample was weighted, to simulate the tension on the polymer when it is stretched into near-planar shape while receiving solar radiation. Exposure rates up to 16 times that expected in Earth orbit were employed, to simulate near-sun solar sailing conditions. Sample appearance, elongation, and shrinkage were monitored, noted, and documented in situ. Thermosetting polyimides showed less degradation or visual change in appearance than thermoplastics

Experimental study of effects of simulated neutralized solar wind on white-pigment thermal control coatings

Simulated solar wind effects on thermal control coatings for space fligh

In situ electron, proton, and ultraviolet radiation effects on thermal control coatings Final report, 15 Sep. 1965 - 15 Jul. 1968

Electron, proton, and ultraviolet radiation effects on thermal control coating

Patient Attitudes Toward a Physician Led Radiology Review: Improved Understanding of Medical Conditions and a Potential New Quality Metric

Objectives: We were interested in understanding patient perspectives regarding the importance of reviewing their imaging studies with a surgeon. Specific Aims: 1. What value do patients place on viewing their imaging? 2. Do patients have a better understanding of their disease and planned operation after a surgeon led review of imaging studies? 3. Do patients find viewing images an accessible educational tool?https://jdc.jefferson.edu/patientsafetyposters/1022/thumbnail.jp