absorptivity ef the surface = « specific heat, cal/em dey r radiochemical yield, kiloicne > Tg = surface temperature, degree? sen ips ce /*= density, gm/om Ow themal conductivity, calfem, der, see @ = angle of incidence of thermal radiacion of the surface. Based on this equation ami a yield in the ovier of 5 HT, Table 1 shows the relationship between the surface vemperature and the total thermal radiation. for surface directly expcssd to the radiation, where T, is the rise in surface tempereture in © “C, and Qp IS TH TOTAL incident tS thermal, rediation in cel/em® as civen in ficure 10, TABLE ¢ Copper fh. = O23 Q9 Advwrirnun Ok Ste! On ore 5 islest~ LO Rai 1é