ne
anticipated pulse-repetition rate.
In operation, the record from Stylus 1
was used until the pulse-renetition rate was so great that the recorded
marke overlapped end could not be resolved.
At that tins, Stylus 2
would be used, each mark representing 11 pulses from the detector head.
The chart drive thst suprified the time base wos calibrated with a
Wetchmaster before each event.
By moans cf the Wetchnaster, the chart
drive could be set to have e maximum error of 1 minute in 24 hours, or
40,06 percent.
This is not the optimm recording system for use with
this detector, bi rotier c earmrotisc forced by 2 lech of fumds anc tim.
ZezedTheInitialInstrumentSyeten,"Gustave I’Detector. For
the high-range, fasteresolution dcctector, the basic circuit of Figure 2,41
was used with a scintillation detector as the sensing element.
The
t
latter consisted of an RCS 922 phototube and a National Radiac Scintillen
Teun opbectic roi
on bo owasl dog
elestrloec nilbloriwg. thicincss cf
bal.cléte tc prevido oc efmecuciv tent reccons: (he feronee €).
The
electren-equilibriur leyer presents a source of electrons that my be
scattered into the erystc! tc replace these electrons produced by
radiation absorbed near the crystal surfaces and lost without being
detectec,
These detectors were constructed to cover three ranges,
10” to 10° e/a, 10° to 10" whe, and 10° to 10° x/ie. The overall
detector response is giver anproximtely by:
feck
Were:
fF = the puts: we ocvitic
(2.3)
rt
y= the garxexposurc rete in rf
ST, LOUIS PAL
k = a parameter chosen ts moet specific design objectives
oS