\ 7 Incl to I-16 ae Yoh ” cow, . Mee mo Se ges ° Pe, a Ss : ne y : . ee ee "2 Toto, te _ ha . . ‘ “ : ' og pyle | - = ey vo. par oot A ot Ah yf aka? ae a one " . ‘: . PTE blo. Felt BROT ne ae . , iy on uo » SannaFetistion necrurenente,PS » De a ke ae, aC : y* gh Mikal for tbe Hagen type bosb with flabadgesand should Be repeatedfornew types being tested. Soa ey oa J ‘ a‘aman Fay epoetran« ~The effective enargyofthe gama radiation ean it be computed from the dosage vereus distance data but additional peasurements should probably be made using shields of different materiale and thicknesses. The iron cassettes used at Bikini ‘did not give data which led to absolutely clear interpretation and, if possible, the material and design should be modified. Ganme intensity versus times -~ Dr. Tuck's fonisation chembers which were used at Bikini were net too successful since they were \Jj incapable of measuring the initial high intensities and did ~~ a not have eufficient tine resolution. High speed camera instro- SN Absorption by thick and angular shields - This could be accomplished eS. by placing films behind various thicknesses ef shielding material ~ ‘ og ma te 4 S- { aiffusenese of the beam could be quite easily measured by means | ef a series of orientometers containing films for measuring the | gauma radiation. These could be aimed act only at the center , Ro ae eee eeree tee ee Om wither side and above and below the point of detonatica. = wo provide insuperable difficulties. Location of source ~ Thelocation of the gamms source and the a m4 mentation would appear more desirable and probably would not placed at different angles to the point of detonation, (This project would not eppear to have exeeptionally high priority winee it probably eould be done on a laboratory scale if the roenlte. vere Sreewith those sbtained from|the ewfentoneters) wo » T a ae a oe a i Poa ee a ralhe, nA, “pe OF t o ape ai ok i, gaan of Pnephores and eelpburcapture. Since these elexents ae Sp : roa . - ae, wee CRO, ee . _ Loe pt % oe a t - . = ” “ 7 n a aE we ~eve Lew srese-sections‘Ter neutrons with energies between thermal “Milas,Dn’ fatereaxperimeategther Clemente ebould alse be flex. In future experiments other elements should also be used,~'":, ead by combining @ number of different slenents it may be possible . to measure practically the entire neutron energy range. It is xg C4 wR a Fa a ge tego eS . 78 Mee t Toe . * Sa me ge iy understood thet sus such measurements have been made for pile neutrons, ould seem Vo i een th

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