Sd aw ad oie he Measurement of activity of a radioactive sample. This sequence shows the placing of a sample in a counting chamber, the action of a scaler, and the recording of results obtaLced. 56 Procedure for calibration of instruments on the flicht deck of the BAIROKO. This sequence shows in detail the procedure used in the calibration of the portable instruments used in the operation. It includes the placing of the source at the ZERO point, it shows the marking of distances fram the source, the monitors receiving instruction as to proper procedures, and the procedure of the monitors in calibrating the portable radiation survey instruments, Placing of film strips in the Bureau of Yards and Docks structures on the ZERO island. Te Tocation and placement of braces for Bulfed containers on ZERO island, This sequence also shows the containers in place, 8 Assembly and installation of both a cascade impactor and a collective protector in an OCE structure on ZERO island, Iagoon reentry survey boats from the BAIROKO,. Bridge of BAIROKO operations on X-RAY day. Monitor survey of Engebi. Removal of films from BuShips structures, containers and samples after X-RAY shot. Removal of Bulled Monitor briefing and equipment aboard BAIROKO, This sequence shows briefing of monitor issue of clothing, issue of instruments, film badges and do. vers. Details of the disposable clothing is also included. Included also is the return of the monitors after the completion of a mission. Alpha photographic plate analysis. RadOps room on BAIRCKO. Island survey. This sequence shavs the monitor operation of Engebi after the detonation, It includes their arrival by LCL, operations, reporting of results, and departure from island,