, STANDARD FORM NO. 64 v Sethe Office Memoran uit « UNITED STATES GOVERNMENT TO : FROM : SUBJECT: SY: BOL: ZO uv naa —) John A. Derry, Zxecutive Officer, «mes DATE: Division of Siology and -edicine Robert L, Sutenhoff, Chief, Radiation Instruments Branch, Vivisicn of Diolesy §and -edicine September 11, 1950 a od f “ONT PROGRECS RETO. ? "OR Teh Ral Ditton GLSTICIENTS §RaLcH, aUSUST LS5O EFR:JdCS : 5 / 2 /ig!Le,Ag gow Oeyphnns.,eatnel Lone we ne maar te eRry mee aE The first civilian defense type instrument which has become available under the Sranch's development program has been tested at the Bureau of Standards for energzy dependency and by the Signal Corps at Fort Lionmouth, New Jersey for rugsedness and temperature and humidity de- pendency. Freliminary data indicate that the instrument is quite satisfactory, fron doth the radiation energy and ruggedness considerations. A procedure has been established whereby other instruments, as they become available, will be ziven the same tests. The Steering Committee of the Atomic BNergy Commission's Special Lube Develooment“Program met in Princeton, New Jersey for the purpose of formulating a vorogran of research and development to be conducted at the research laboratories of the Radio Corporation of America under AEC contract, Navy representatives attended the meeting and a pro- gram of inter-agency coordination was worked oute 2°A was ziven instructions to proceed with the development of two tyves of photo- multiplier tubes, both of which will provide research tools for the AEC scientists, facilitating certain physical measurements which have been either very difficult or actually impossible. Preliminary investigations will also be started on a combination electron gun photomultiplier device for use in the analysis of radiation spectra, & series of meetings was held between representatives of the Naval Research Laboratory and Atomic Enerzy Commission personnel to exchange information on halogen filled Geiger counters and on techniques for measuring charecteristics of scirtillators for use in scintillation counters. A proposal for the Kadiation Instruments Branch's participation in Project Greenhouse has been submitted to Los #lamos. The primary object of this participation will be the field evaluation of civilian defense type instruments being developed under AEC sponsorship. A series of spectral dependency measurements have been made in cooperation with the Bureau of vtandards to obtain information required for Project Greenhouse. DEPARTMENT OF ENERGY DECLASSIFICATION REVIEVY SINGLE REVIEW AUTHORIZED BY: DETERMINATION [CIRCLE HUMBER{S)] S bua . T. CLASSIFICATION RETAINED Ag NAME: >i outs “ ML ‘ko vk DATE: tee 2. CLASSIFICATION CHANGED To: bd Me i GORLINATE WITH: 5. CLASSIFICATION CANCELLED CLASSIFIED INFO BRACKETED ZHOTHER (SPECIFY): ENLUS Re 4 ie ye Viculie. cu liiets a ‘aduis ENE ‘ie ek ee a DOS ARCHIVES