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DUE TO FISSION TO NEARLY THE SAME ACCURACY BECAUSE ERRORS IN
CALIBRATION AND IN TOTAL YIELD DETERMINATION SHOULD BE LESS.
BY USING EITHER DIRECT EXPOSURE OF FILM OR A FLUOR TECHNIQUE,
WE GUESS THAT A GROUP OF HALF A DOZEN SCIENTISTS AND TECHNICIANS
COULD PREPARE FOR AND CARRY OUT THIS MEASUREMENT AND THE TOTAL
YIELD MEASUREMENT BY WORKING TWO OR THREE MONTHS PRIOR TO TEST.
ADDITIONAL EXPENSE BEYOND MAINTENANCE OF THE GROUP WOULD BE
SMALL, PERHAPS A FEW THOUSAND DOLLARS FOR EQUIPMENT AND THE
COST OF CONSTRUCTION OF A FEW WELLS BY HOLMES AND NARVER.
MEASUREMENT OF BOTH TOTAL YIELD AND FISSION YIELD COULD BE
PERFORMED BY AN INTERNATIONAL GROUP OR BY US SCIENTISTS UNDER
THEIR OBSERVATION.
IF THERE IS A PROBLEM CONNECTED WITH
DEDUCTIONS ABOUT DESIGN WHICH MIGHT BE MADE BY A GROUP WHICH
HAS THE TOTAL AND FISSION YIELDS AND WHICH COLLECTS ITS OWN
RADIOCHEMICAL SAMPLES, THESE DEDUCTIONS COULD BE CONFUSED BY
PLACING QUANTITIES OF EXTRANEOUS MATERIALS SUCH AS TUBALLOY
NEAR THE BOMB,
THERE IS NO REASON TO LIMIT ABOVE OBSERVATIONS TO A CLEAN
DEVICE AND, IF SIMILAR MEASUREMENTS WERE MADE ON A DIRTY OR
PURE FISSION BOMB, IT WOULD PROVIDE A KIND OF CHECK ON THE
ABSOLUTE CALIBRATION OF THE GAMMA DETECTORS.
HOWEVER, YOU
MAY NOT WISH TO ADMIT THAT WE ARE TESTING ANYTHING BUT CLEAN
BOMBS AND WE BELIEVE THE JOB COULD PROBABLY BE ACCOMPLISHED
ON THE BASIS OF A SINGLE TEST WITH A CLEAN DEVICE,
PRESENT PLANS FOR LASL TESTS DO NOT SEEM VERY APPROPRIATE FOR
THE DEMONSTRATION BECAUSE OF THE POSITIONS OF BARGES IN THE
LAGOON AND THE TYPES OF DEVICES TO BE TESTED.
IN PARTICULAR,
WE ARE UNHAPPY AT THOUGHT OF USING A PREVIOUSLY UNTESTED,
RELATIVELY SMALL CLEAN DEVICE FOR SUCH A DEMONSTRATION BECAUSE
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Appendix "C"
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