emergencies such as misfire, low-order nuclear detonation, delays, or postponements. After completion of thé Firing Party Check List, the arming team returned from the shot island to the USS Estes, on which the firing control room was located. By means of television monitoring equipment and radio control circuits, the firing team began the preparations for detonating the device. By use of the television equipmentthe firing team was able to monitor the various systems or critical equipment within the Mike device and to note the position of various timing signals and the position of the Go-No-Gointerlocks. By using three radio links the firing team, at the proper time and in the proper sequence, activated the timing signals and the sequence timer so that the Mike device waa detonated on schedule. Provisions existed such that the Firing Party Commander could stop the shot at any time by means of remote control. A similar firing team was used for King Shot but had only the responsibilities for the activation of the timing signals and a voice time broadcast. 4.7 TASK UNIT 7, RADIOLOGICAL SAFETY Activities of this Task Unit are fully covered in Sec. 3.14. 4.8 TASK UNIT 8, TECHNICAL PHOTOGRAPHY The tasks of the Technical Photography Unit included the following: + 1. To make such technical photographs as were required to illustrate reports and to photograph each event. 2. To furnish darkroom facilities to experimenters and to process records upon request. 3. To furnish storage and accountability for photosensitive material. TU 8 personnel consisted of six photographers, one control clerk, and one supervisor. Since this unit has had experience in a number of previous operations, no specific training for Operation Ivy was required. Forward Area operations consisted of taking photographs of scientific equipment as requested, processing of film, printing, photostating, etc. Operations at shot times were concerned mainly with shot coverage. Some military photographers assisted this Task Unit at shot times. Scientific processing of an urgent nature was accomplished in the USS Estes darkroom. 4.9 TASK UNIT 9, DOCUMENTARY PHOTOGRAPHY Activities of this Task Unit are covered in Sec. 3.13. 4.10 TASK UNIT 10, TEST FACILITIES Activities of this Task Unit are discussed in Sec. 3.7.2. 4.11 TASK UNIT 11, BASE FACILITIES Activities of this Task Unit are discussed in Sec. 3.7.2. 59-60