lia
Project 13.1 - Measurement of Alpha and Boost — H, Grier
J, Malik
Measurements of the reaction rates prior to end during boosting
for the Ma by EG&G (Ward).
>
pepe
f
ee
~
-
These measurements show that
we Peereee
igEne
The records obtainedweré poor - a@ large amount |
to inductive blocking condensers used in the detectors made over half
of the traces unreadable.
Those records which were usable had a rather
small dynamic range and resulted in rather wide scatter in the data
points and did not permit an accurate time-tie.
Enough data were obtained
to make a time-tied splice of the data over essentially the full dynamic
range encompassed,
A total of ten detectors were used - two of Neher's photomultiplier
detectors to cover the early part of the curve and eight of BG&G's photocell detectors.
The detectors used to measure the boost region were
collimated to an angle of 1 in 20 at the detector to reduce time smear
by air scattering and also viewed the source through an aperture of about
2.5 inch diameter in a 2.5 ft thick paraffin-concrete shield located in
the tower cab; the shield precluded the detectors seeing the weapon case,
COPIED/p
Lane
pe OE
~ 51 -