ar ée. @ .@ > e wo weow ~e~ ) 4 ground zéro and to fall-out, Following the detonation, personnel entering shot areas will be ex- posed to beta particles and gatma rays coming from induced neutron activity in the soil ed on the ground. and any fission products which might have been d epositThere may also be a potential alpha particle hazard ‘rom the unfissioned fissionable materials which may be deposited on the ground, Protection a. Against the primary radiological effects, distance will provide protection, b, «against the secondary radioactivity hazards from radioactive fis- sion products, induced radioactivity and unfissioned residue, detection and avoidance provide the best protection. Suitable instruments indi- cate both the presence and intensity of radioactivity at a given Place. area reconnaissance, the maintenance of contamination situation maps, © the posting of areas of hazard, and minimizing the spread of contaminated material into uncontaminated areas constitute the active measures for ; reducing the radiological hazard, ce Personnel within an operational radius of ground zero who are to be facing in the direction of the flash will be required to wear sp:cial goggles to protect their eyes against excessive light. Personnel within the ahove operational radius who are not provided goggles will face, with eyes closed, in the opposite direction from the flash, after ten (10)- seconds, such personnel may turn about and observe the phenomena, 3. anticipated Hazard Areas a. Immediately under the panb burst there will be an area of intense tom cin . es . radioactivity extending oe . . and to some extent crosswind and upwind with gradually decreasing intansity,,. BEST AVAILABLE COPY .