sn AAS Lamtn
Se
METER RESPONSE FACTORS
.
L
ENERG
beet
Chwuplor hy
aat
survey meter to the spectra calenlated fn
tn temis of a eet of Romanhds ing factocs, one
for gach enevyy intarval in the epactrin,
By
sunning over the intere
vals and weighting each response factor by the fraction of total
airedese in that inturval, a total response factor is obtained,
vhus, if ve isa dose beading for radiation of a civen cnerzy and
K, is the normalizing facter for that energy, then;
KDE = £4D
(5.1)
wheres fy =: the fraction with the given energy of the total true dose D
Hence:
Pot =D > f
i
Solving for Ds
D=
1
Dd
yak
(5.2)
Ky
The fy may be taken from the dose~eneryy distritutions in Chapter
4 and the ie from Figure 5,1, which is a plot of the response factors
found for the earlter model of the aAN/PDR-39a, then called the AN/PUK-
T1B (Referenca 10),
This is tellaved to be essentially identical in
its response to the later models,
For the spectrum used in the hefer-
‘ence 16 calculations, the total response factor was found to be 1,9h,
This value was used in the dose calculations of that report.
For the spectra shown in the Figures l,l to 4.3, the total energy
response factors for all energies above 20 kev were found to be as
given in Table 5.1, The value of 1,12 for the H+ 5.2 day spectrum of
Shot 1 (Figure l.2) is used in the revised dose calculations of this
report, since this spectrin represents the best data.
25
,