The camera assembly will be placed inside the deck house on the main deck and will view a target on or near the bulwark through porthole in the deck house bulkhead, The target will be illuminated by a Heiland electronic flash unit (Stobonar III) synchronized to the cemera shutter, This lamp will be placed close enough to the target so that its light will determine the exposure of the film regardless of ambient light conditions, A timer clock will be used to turn the camere on at H hour and turn the camora off at H + 4 (480 frames being exposed). 3.5.2 (See Tab D-1l1 for a layout of equipment.) Loading and Adjusting Camera end Lights About H-12,the cemera will be wound and loaded vith film, the lights adjusted and checked, and the time clock started, The porthole cnd prism will be cleaned of all dust cnd dirt, The flesh lamp will be placed in plastic bags, set in position and checked for proper operating condition. The target will be cleaned and adjusted, if necessery. The timer clock will be adjusted to turn the camera cnd lights on ete hour end off at H + 4, (Seo Tab D-12 for details operating equipment. 325.3 Recovery of Film and Securing of Camera Station At about R +1, one man will borrd the ship, and secure the camera station, The porthole will be covered and the flash lamp disconnected and removed from the ship for decontamination and storage, As soon as the interior of the ship msy be entered, the camcra will be unloaded ond the film removed from the ship for processing. (See Tab D-12 for rccovery «nd securing details.) 3.5.4 Processing Films and Roading Results The exposed end recovered film will be processed as soon as possible by the Lookout Mountain Laboratories, As soon as they are processed,the negative films will be previewed with a 16 mm projector, This will show gross changes in the appearance of the target as well as suspended large drops or particles, Detailed inspection of the films will be delayed until return te NADL. 4. ADMINISTRATION AND LOGISTICAL MATTERS (Test Proparction, Support and Roll-up Lol Pre-Test Work ot USNRDL 4el.1 ST, LOUIS FRO Evalustion of the Portable Beta Probes A prototype beta probe will be tested to determine the 6 ¢/