a 18 to facilitate draining and decontaminating the interior. 6, Shock-mount the probe with at least one inch of sponge ‘i rubber, ing ranges: 5, 30, 50, 300, Gamma Ray Spectra. unashed, on June 22, ilcnAnePlena ERRPiyaRain. «UNGShealiaa+aR 5-5 Add range scales to the control unit with the follow500, and 3000 microroentgens. Plankton sample 9D was first analyzed, ashed and analyzed on June 23, and allowed to decay until July 2, when it was again analyzed. The results are shown in Table 4. Both the gamma peaks for r131 (.32 and .66 Mev) and Ru 93 (.23 Mev) exhibited marked 131 reduction in intensity after ashing. The I at, peak, accounting sh ai ae for most of the lodine activity (.32 Mev, 85 per cent), had disappeared by July 2. The presence ee presence of Mo??, Rut °3 | yi31 Bal 40 and Lal4o . ae The gamma spectrum curves give good indications for the | I jl ro 1 “ed, i be tap a \ y . " irs te TeNe aae ee of zr? and cell is questionable. whatae HinataBaladvot A as Bo ET 2 rai te ees 7.

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