Transcription of THERMAL RADIATION AND ITS EFFECTS
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THERMAL RADIATION AND ITS EFFECTS
CHAPTER VIITHERMAL RADIATION AND ITS EFFECTSRADIATION FROM THE FIREBALLGENERAL CHARACTERISTICS OF energy is initially in the form of kineticTHERMAL RADIATION energy of the weapon debris. This ki-netic energy is also absorbed by the One of the important dif- at a slightly later time \( ) andferences between a nuclear and a con- serves to further heat the air. The heatedventional high-explosive weapon is the air, which constitutes the fireball, in turnlarge proportion of the energy of a nu- radiates in a spectral region roughlyclear explosion which is released in the similar to that of sunlight near theform of THERMAL (or heat) RADIATION . Be- earth's surface. It is the RADIATION (ultra-cause of the enormous amount of energy violet, visible, and infrared) from theliberated per unit mass in a nuclear fireball, traveling with the velocity ofweapon, very high temperatures are at- light, which constitutes the THERMAL ra-tained.
278 THERMAL RADIATION AND ITS EFFECTS AlTENUATION OF THERMAL namely, absorption and scattering. 1 RADIATION Atoms and molecules present in the air
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