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The procedures and results obtained in evaluating the performance of a particular commercially available 10-kilowatt-carbon-arc solar radiation simulator are presented herein. This unit, a Strong Arcomatic Solar Radiation Simulator # 75002-A, differs from others in its power range in employing a molded lenticular or mosaic lens optical system and a nonconsumable tungsten negative electrode (refs. 3 and 4). This electrode allows up to 100 hours of continuous operation.
At the 6.09-meter distance, the maxi- mum beam diameter was 1.02 meters, but only the area within a 0.66-meter-diametef circle exhibited an irradiance variation of less than ±5 percent.
The total collimation angle is 2.3° throughout the test plane at the 6. 09-meter distance. The total collimation angle of the sun by comparison is about 0. 5°.
A drawing of the larger chamber, including the position of simulated solar sources.
RCA Service Company to design and build two vacuum chambers at MSC. The facility was used in astronaut training and spacecraft environmental testing. using carbon arc: lamps, the chambers simulated the sun's intensity, permitting observation of the effects of solar heating encountered on a lunar mission. At the end of July, MSC awarded RCA another contract (worth $3,341,750) for these solar simulators.
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