—-— —t Project @.5 - ATRB0ANE HICH RESOLUTION SIECTRAL ANALYSIS - Dr. Ralph Zirkind CB.S0TIVE To csterzine the radiant power of a 30-40 kKiloton surface burst as a function of wavelength end the fircball color teaperature as seen from an airborne station. These objectives were to be accomplished by determining the atmospheric attenuat- ion by an independent neasurement and correcting the power received at the iustrucent station aboard the aircraft, q> The eprotrval distribution of the radiant power is obtained from a nedium sais senpted tn narrow tinds by photocells “nthe vi itt: eoptea end i°S cols fn vthe infhea cd. The ets utoel stizp-al ts hen iscoided on an Avpox 814 tae vrecoter, with a resolution time of 150/. sce. fag a pulsed Wisht signal of D J.on outpat and spectral distribution fron a fined point on the groind ti. is the aircraft. The attenuated beam is received by a detector in the aircraft and .icorded en a Feilend reconler, The devactor consists of two filtered photo~ vo Itiplier Lubes ssmpling two szpsetral cisions, (1) .3-.55 -icrens, microns and (2) .6-1,95 In addition, a quartz filtered calorizeter, SVived to :..esure the é@épproxictste ratenh esyposuic Les ‘ot : 4 rs sae +3 = a wee hk a tte. ae aye + The aircraft was located at the intended position (within 600 feet). (Planned coPIEd/ DOE LANL RG position at H-hour was on an inbound heeding of 135°T with no horizontal offset to be abreast of ground zero at H-6,5 seconds with a horizontal range of 5,000 feet at T,). } \g ~ 62- (, | |