a eye att Sos Be= mo wat as = viene a ae 4 et neue = Sapte Rae aDeee: oe‘Spectal” electron” multiplier -tubes then under development by the RCA Laboratories Bureau of Ships.. Requests were received totaling approximately multiplier tubes which were to be purchased under the Appraisal Program upon completion of the development phase. Of the three tubes, development has been completed on only one. The second i final stages of development (now under AEC sponsorship) and the ment on the third has been suspended indefinitely. Radiation instruments research and development. The.deve of the Zamboni Pile (high voltage) battery has proceeded to the where applicationtests in actual instruments have. commenced. have approximately twice the voltage and ten times the current equivalent British-developed batteries. Testing and evaluation. Three types of .radiation measur devices were submitted to the National Bureau of Standards for two types were tested in order to obtain calibration and spectr ence information on instruments which have potential civil defe cations; one type Was submitted for tests on conformance to mamffacturing specifications. New industrial development. A demonstration was attended of a new high-speed decade counter tube employing an electron beam. The ftube was developed by North American Phillips. The merits of the tube d possible use in nuclear instrumentation equipment are being investigated] and a limited number of tubes may be purchased for appraisal. Instrument appraisal program. During the month of Augusg, 115 ra- diation-detection instruments valued at $20,517 were received if, stock, tion and evaluation. during and 38 instruments valued at $4,900 were shipped to AEC areas fbr inspecthe month. New equipment valued at $2,230 was ordere—l Civilian defense. The following shipments of instrumen were made on a loan basis in connection with civil defense training: 1. Two ionization chambers and one Geiger tube rvey meter to Hopewell, Virginia; a 3 x i i . 2. Carolina; One Geiger tube survey meter to Charleston, Qouth 3. One Geiger tube survey meter to Greenville, Jouth Carolina; and 4. Sixteen ionization chambers and 16 Geiger tule survey meters to Food and Drug Administration. - 18 - sexe ACHIVES @