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Project 22.1 - Measurement of Alpha - L. F. Wouters
RAFRRDGBITAL
The gamma reys procuced by the nuclear reaction were detected by flucorPhotooell detectors located in a lead lines "doghouse” 1&4 fest from the sero
point.
A 27 foot lead pips served to coilimate the gamma rays onto en arrey
of four fluors,
The four fluores were positioned in tandem along the gamma path
and were observed by a total of thrce photodiodes anc four photomultiplier units.
Combinations cof gamma attenuators between fluorea and optical attenuators between
different detector units on the same fluor ematled tie attainment of complete
coverage from the 30tt generation level) to well above the peak expected gamma
signal.
The detector outputs vere transmitted by cable to reeording oscillo-
graphs located in the blocktcouse where cameras proviced « permunent fila
record of the signals.
The resection history experipent was successful in measuring the high
explosive transit tine and the resection rate of theSEBaxapoe) devios,
ELK. Transit Tine - The high explosive trensit tise vas measured to be
from the z-unit pulses to the tise of $Ott generation
level of the fiseion reaction.
Alpbe - Preliminary reaction history results are indicated in Mg. 22.l-]
and 22;1-2,
Fig. 22.1-1 is a plot of the equivalent pase Mey per second
point scurce strength versus tine as obtaine) from a slope-amplitude fit of the
individual pieces of deta,
Pig. 22.1-2 is an alphe versus tine curve derived
from Fig. 22.1-1.
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