Progress Report ~fo the Bureau of Ships. Recuests were received totaling approximately 200 photomultiplier tubes which were to be purchased under the Appraisal Stockpile Pro~ gram won completion of the development phase. of the three types of tuccs, aevelopment has been completed on only one. The second is in the final stages of develooment (now under AEC sponsorship) and the development on the third has been suspended indefinitely. Radiation Instruments Research and Development: The development of the Zamboni Pile (high voltage) battery has proceeded to the point where ap lication tests in actual instruments have commenced. These units have approximately twice the voltage and ten times the current of the equivalent British developed batteries. Testingand Evaduation: Three types of radiation measurement devices were submitted to the National Bureau of Standards for evaluationstw types were tested in order to obtain calibration and spectral dependence information on instruments which have potential civildefense applications;me type was submitted for tests on conformance to manufacturing specifications, New Industrial Development: A demonstration was attended of a new high speed decade counter tube employing an electron beam. The tube was developed by North American °hillios. The merits of tne tube and possible use in nuclear instrumentation ecuipment are being Investigated and a limited number of the tubes may be purchased for appraisal. Instrument Appraisal Program: During the month of August, 115 radiation detection instruments valued at $20,517 were received in stock and 38 instruments valued at $4,900 were shipped to AEC areas for inspection and evduation. New equipment valued at $2,230 was ordered during the month. Givilian Defense: The following shipments of instruments were made on a loan basis in connection with civil defense training: 1. Two ionization chambers and one geiger tube gurvey meter to Hopewell, 2. 3e One geiger tube survey meter to Charleston, Seuth Carolina. One geiger tube survey meter to Greenville, South Carolina. 4. Virginia. Sixteen ionization chambers and sixteen geiger tube survey meters te iced and Drug Administration. GPO OFFICE > 16—55741-1

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