Assure:
a.
Point source
b. 0.5 Mevware beta energy
a, “Rate“ofohh follows 472-2
The dose delivered at the surface of an imaginary sphere at distance
R from a point source.”
(2) x(n) Eo a
~
vhere:mz(R) = dose delivered at the surface of an
promos
imaginary sphere et distance F
:
@ totel
__ Substdtutingys 20en?/an
Then:
(2) x(a) 50.397
r
egr:
fi © nase absorption cosfficient
SLE
gu-disintegration
gk
(3.0.) K(R) = 2B x 10
‘
i
—
gr
35
«102
(3.b.) K(R) 2 ge x 1076
52
Billivers_
Disintegration
glllirsds
disintegration
Equation (3.a.) 1s plotted on the attached graph.
FOR FISSICN PRODUCTS,
—~o
f
|
}
—~
@
,-»
wed
(5) ay 45k,
wes
wheres
~
4, = disintegrations per unit tine at time "a" after detonati
4) ® disintegrations per unit tine at one unit of tire after
&
*hossi, H.H. and Ellis, RH. “Distributed Beta Sources in Uniformly
Vedia" Kueleonie: July 1950, V. 7, Ko. 1
C6
Absorbing