4 I) Un AT Tan JP REINS | fs ble £ - Nuclear Core Types UL. External Initiator. : cenagetle nee 7 Mao es earet ober win yee sae Ie eee "OPot ¥ : wre = t one type of external initiator is to be ready for full-scale testing in the spring of 1952. advantage would be Pale The in starting the nuclear chain reaction at 2 more nearly optimum time during the implosion than can be done at present and thus inercasing the energy release. aeteaSi RATERS get ST ote career dette MAPeattot cutieabe . sek tH ne area easel A er eMhe or iccg carne energie Hemme - An e . Sstiils Sanearen apne, crenataterAt r ansen tidal CIO . Aligrho Pn ROECVERRA WieRtAEA a vembertianalia Wega aasttine™ ge berg I, : MeTt td 9 eraetnh 14 - .