"spas “4 oz toh The following mterials are included for test in this project; sodium chloride, Lithium fluoride, potassium chloride, and potassium bromide. long. The crystals are approximately 1/2 inch square and 3 inches In their natural state they are clear and colorless but upon exposure to radiation they absorb various bands of the spectra, giving the appearance of color. Delivery of these materials was made to the U.S.S. BAIROKO for transport to the test site. On the voyage to the test site it was planned to attempt calibration by exposure to the radiua source available, Operations Plans for Technical Measurements. | when the first draft of the Scientific Director's Operation Plan was received, Task Group 7.6 prepared a plan for carrying out the technical measurements assigned to it. A draft of this plan was sub- mitted to the Scientific Director on 20 Noverber and used as a basis for future planning. Ruch of the information in this plan was in corporated by the Scientific Director in the over-all operations plan for the Task Force. Frequent coordination was required with the other scientific groups, with J-3, and with those responsible for organizing the air operations, In ‘anuary a procedure for a flight plan for use in the @47 aerial survey operation was prepared in coordination with Colonel Shephard, Task Group 7.4. At the end of Jar ary a final draft of the operations required for the technical measurements unit was prepared and concurred in for the most part by the Test and Scientific Directors, ot we errt cy 3a woos wv Sensges* — . ae eit Senne / . mre fe, * = Sareey otBg Satireave. Wied