GO degrees from this axis.
Qoe of the Redstone pods, instrumented by Project
8.6) and vhich carried neutrce detectors, wes located at 4a augie®” less than
15 degrees from the Redstone axis.
Thos che oeutroa output was measured at
three different angles from the Redstome axis.
Neutron data obtained from al] Samlia rockets are given in Table. 3.1.
Angular dependence of the neatron outpet from the barst is shown graphically
in Fig. 3.1; these walues vere obtained by r extrapolation of the data to
the source.
Correspomding quantities calculated by Bing and Lessler> are in-
cloded in this illusrration for comparisou.
An independent calcnlaticn by
d@alter Goad* gives the spectrom averaged ower all directions but does not give
the angular deperdence.
These averages are also incloded in Fig. 3.1.
Ac-
=
curacy of these calculations has been estimated to be a factor of 2.
An uncertaintydifficult to evaluate obtains vhen a comparison is made
between calculated and measured seutron flox.
pide!
The absolute calibration of
the activation sample-measuring system is not well-koown.
Furthersore, this
by)
absoluce calibration depends on the neutron spectrima, since activation cross (
;
sections are oot ideal step fonctions with energy.
‘
This calibration error
is perhaps 25 percezt.
"Letter cited states that final neutron daca of Project 8.6 is unchanged
from ITR-1652. Angle of pod to Redstone axis is stated to be less than 15
degrees (ABMA calculations yield value of 13.5 degrees and MSQ traczing data
give 1.3 degrees).
50
ia
.
Pagas P/, PZ, smd $3
are deletud.
SG