77 ahaosacz) Project 13.1 - MEASUREMENT OF ALPHA - H. Grier J. Malik The measurement of the mitiplication rate on alpha of the made by EG&G (Ward) from Runit, station 1310. generations, Within the range of ; An array of four detectors, one photamltiplier and three photocell detectors, each driving the three scope combination of EG&G 3343, K-1421, and K-14,09, all utilizing a common 270 Mc/s Rossi display. All detectors were located at the predicted ground zero; the actual ground zero was 190 feet southwest of the detectors and burst altitude was 680 feet, No collimation was used on this shot. Data were obtained on only 7 of the 12 indicators; a large amount of hash of unexplained origin made records hard or impossible to read. The photo~ multiplier gave good data on the EG&G 3343, however, and the high level photocell data were generally good, p £0; 4 any ie