| 摘要 |
A sublimator is described for subliming a material such as titanium. The sublimator comprises a generally spherical hollow body of the material to be sublimated enclosing a source of heating energy. The wall of the hollow body is uniformly thick over its full extent, and the configuration of the heat source is correlated to the inner surface of the spherical body to provide a generally uniform rate of total heat energy absorption at substantially all portions of the body. The result is that the body sublimates uniformly from its full outer surface, and at the time in which any one portion of the body is fully dissipated, i.e., when an aperture appears through the body, the remaining portion of the body is also substantially dissipated.
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