129

Since this is one of the most
sensitive absorption techniques that is
{in use today, and we have discovered discrepancies, we are planning on submitting

this discrepanoy to physical review.

The percentages are given for

two Beta particles emitted from

|

cesium137

-- they abe .56 MEV and I believe 1,1 MEV
and the percentages are 90 per cent and
16 per cent and after purifying this iso- .
tope chemically and running many replicas
of the same sample, we consistently get
the percentages to be €0 and 40 and an

energy difference for this Beta for 2/10

MEV (indicating 1,1 on the board),
MR. EISENBUD?

Thank you very

much,

up.

Well, we have practically caught
We will have Mr, LeVine preeents his

material on the Central Beta Processing

Unit during the laboratory tour which will

be given at 1 $30.

So, after lunch we will assemble

on the fourth floor and we will have a tour

during the laboratory sand this afternoon we
will go into our fallout portion of our program.

(Whereupon a luncheon recess was takene)

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