ts

portions with “+rays.
not such effects eon be

Pre-test dete should be obtained as to whotier or
misread

seeured vith neutrons alone or with misel

poli

ro lictiona.

This date conld be ovtcined
from evclstven or shielded and washielicd pit.
ie
x

experinents.

Drosozuila shevld be,exresel anc genetic effects strdied.
shovlc bs dene since immediately clher ex_csure.

These studies

Sufficient data apvecr

to be knowm to cneble the eclouteticn of the fluxes of neutrons and gr ume
Adin
reya from a stucy of the doainart icthels and the recessive lethels
incuce

in exosed Droso2kile sverm.

Because of the differences in reletivs ef lelency

of neutrens and gemma rays for the prcduction of these two effects { 3 to]
for dominant lethals and 1 tc atout 0.7 for recessive lethale) it should be
possible to find the progortion of fast neutrons to gemma rays at the point
of sxovure.

Tis data alone would be of value to the physicist es 2 aed

agcdust his wucisrements by instrunents.

Genetic studies with Droso_hita

should 3tert within a few hours efter ex,osure.

In this case, tue folining

iwividuels skculé2 be consulted te mao out a detailed program.

They ere:

Doctor? E, 7. Molar (Indiana Usiversity), Curt Stern (Berkely), end U.?.
S sneer (Vocster Celleg2, Ohio).
tTredecenntic would anpesr tc offer informetion of considcreble interest
if the slants can te obteinsd ir. flevor ct the tire of the tests, slice it
hag been sitensivel: studied] with rezird to effe-ts of X-reys, gemze res,
mh

tO P
and fist neutrons of2 cifferms

euergics by Doctors Karl Sex (Herverd), Noxmmen

Giles (Oak Ridge & tioncl Labor: tory), end D. G. Cateheside (Casbridge
4

ome of these individusls should be

79

University, Cnglend) and his co-vorkers.
consulted regarding feasibility.

For the moment, further tests de not ap vecr -racticel.

Iv is vell to

emphasise, however, thetthig pacer rovrecents orelimincry thinking on this
Wd

-

wsetier.

Nhe?

Mic sik

neo es

my

eget eee

-

-

tion and reavivngsmont of clamaing mus

+.

te-

cee

ee

” : DOK ARCHIVES

Select target paragraph3