Recommendations for developing simulators of solar radiation penetrating to the Earth's surface

By irradiation of materials provides a possibility of producing processes not characteristics of the natural solar radiation and intensification of other processes can also occur. Tests were conducted to obtain a total intensity of simulated solar radiation of 1.6 to 1.8 cal/(sq. cm. min), where 0.06 cal/(sq. cm. min.) lie in the ultraviolet region (0.28-0.4 micrometer), or, based on the photochemical activity, 5.4-5.5 mg/sq. cm .h of decomposed oxalic acid at the chamber temperature of 80 C for an hour exposure. The radiation intensity was measured at each corner of a 500x500 sq mm area for three different elevations. It is indicated that the test objectives are satisfied for the elevation of 600 to 700 mm from the chamber bottom.