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Director ofJ Division

Los Alamos Selentific Laboratory

P, 0. Bax 1663
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February 27, 1951.

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Dr. Alvin C. Graves

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Dezr Dr. Gravas:

I have been intending to telephone you for the past several days, but
have not had a chance to do 30,
One of the items I had in mind to discuss with you ts the AzO's parti~
elpation in the testing of instruments under °roject 5.1. As you know,

the necessity for testing Ail-developed instruments at "Greenhouse" became
evident during the early part of 1950. It was felt that tests on

instruments being developed by the 250 which had possible civil defense
application = particularly dosage-rate seters and dosimeters - required
actual field tests. Further, 2 field evaluation of tha icC Emercency.

fonitoring Team kita waa felt necessary in order to determines the adecuacy

ef the instruments and equipment in these kits. This, it secms to me, is
especially important in light of the fact that the country's civil defense

organization is not yet ready to stand on its owm feet and the As0's

Emergency “onitoring Teams are, perhaps, the only organized units that
presently can be ealled upon in tine of emergency. It is essential that

we have some first-nand knowledge of the adequacy of the ecud:inent they
are using.

Thirdly, wea hope to vain from "Greenhouse" needed information on the

serviceability and maintenance experience of health physics monitoring

instruments.

You are probably aware that Bob 3utenhoff, Chief of the 120's Radiation
Instruments Granth in the Jivision of Biology and Medicine, is to be the
akCts sole representative in this -roject.

Consecuently, ve are counting

rather heavily on him to return with information to guide us in our
future .f6 instrumentation >rogram

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