pn Results: 2=30 _—— DELETED 2.2.5 PROGRAN 13 ALPHA LEASUREIQNTS 9) Objectives: 1. To measure alpha as a function of time for the fission devices or primaries in order to determine whcther they worked properly and in case they did not, to aide in diagnosing the trouble. 2. To obtain and telemster measurements indicetin: the "transit time" for the HE Liplosion and time from load ring pulse to very ecrly gamma levels in the device, Techniques: 1. Alpha detectors, cach consisting of a plastic fluor and photo» cell or multiplier combination in a light-tight can, were mounted at appropriate distances frori the devices to give a wide range in sensitivity. The signals were conducted over coaxial cables,~ shieldud against gamma, neutron, and electromagnetic radiation, to conerete bunkers. These signals then tere displayed on 2 series of high speed oscilloscopes tocether with timing frequencies end were recorded by camerzs, 2. Similar detectors, very near the device, gave signals which were telemetered by a wide band ultra high frequency transmitter-receiver combination and recorded on oscilloscopes. Results: 1. For details on results of the alpha measurements the reader is referred to the project reports. 2.2.6 PROGRAM Uy, PHONEX-PINEX Objectives: t 1. Te obtain neutron spectra at 2 number of positions on the sec~ ondary of a two stage megaton device, Techniques: 1. By means of a pinhole placed in a mile long vacuum pipe neutrons were allowed to form an image of the source on a hydrogen containing thin plastic foil. Recoil protons from this foil passed through a collimating system and were recorded on nuclezsr emulsion plates. Track were counted and measured to determine the spectrum of th- £ opie. Mae EC incident neutrons, ve je” 4 y PGE