GIAPTER 2
2.1
OPERATIONS
Table 2.1 gives the shot participation and instrusentstion. The
instruzent stations were placed in the previously prepared positions at
the latest precticable time pricr to sech shot, and were recovered postshot a6 econ es Rad~Safe conditions permitted. The residual stations
were activated upon placement.
Their 5-day operating period allowed for
2 days of data-recording and three i-day shot delays.
For the surface
bursts, the initial stations wore activated by a minus-i-minute timing
signe) for waraup, ond a minue-15~second signal to start the recorde,
Shot Zuni wes an exceptions only « minus-t-second signe! wes available
to start the recorder.
Timing signals were necessary on the initial
stations due to the limited recording time available (Cook Research
Laboratory MR 33 recorders, 4 minutoss Sanborn recorders, 15 minutes).
For Shot Cherokee, the recorders were not started until after the boub
release.
2.2 INSTRUMENTATION
In designing the instrusentation for this project, there were tw
objectives:
(1) to design the instruments s0 as to best fulfill the
requixeusts; and (2) to design flexible instruments readily edaptable
to a wide variety of field measurements.
In view of this dual objective,
the instruments wore designed to be cocact, drift-frec,rellebie, wide
in dynemic-range coverage, and low in cost. The basic circuit evolved
meceures discrete increments of charge.
Essentially, this circult msy
be used with any sensing element that has an output which is a mom
function of the radiation field. Thus, the cirouit is equally applicable
ee
Oe /9