| Autor: |
P. Richard Turner, Suraj P. Rawal, Robert N. Miyake, Juan A. Ayon, William A. Imbriale, Ray B. Dirling, Geoffrey D. Harvey, James E. Randolph, Bill J. Nesmith, Jeffrey C. Preble, Robert L. Mueller, Wallace L. Vaughn |
| Rok vydání: |
1997 |
| Předmět: |
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| Zdroj: |
Space technology and applications international forum (STAIF - 97). |
| DOI: |
10.1063/1.52140 |
| Popis: |
The continuing development of new spacecraft technologies promises to enable the Solar Probe to be the first mission to travel in the atmosphere or corona of the sun. The most significant technology challenge is the thermal shield that would protect the spacecraft from the flux of 3000 suns (400 W/cm ** 2) at the perihelion radius of 4 solar radii while allowing the spacecraft subsystems to operate at near room temperature. One of the key design issues of the shield is not simply surviving, but operating at temperatures well above 2000K while minimizing the sublimation from the shield surface. Excessive sublimation could cause interference with the plasma science experiments that are fundamental to the Solar Probe’s scientific objectives of measuring the birth and development of the solar wind. The selection of a special type of carbon-carbon as the shield material seems assured at this time. Tests of this material in late 1996 were designed to confirm its optical surface properties and mass loss charact... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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