“ECR.
Bose-cone recovery.
Provision was also aace to evaluate the gama glass dosic-
eters in the ladorarory.
4.2.3
Data and Inseroent Performance
Gamma -dose-rate-versus-tice data were recorded from Stations 39, 45, and
59 oa Teak and Stacion 72 on Orange.
in Fig. 4.14.
A typical record (Station IK-59) is shan
The cyclic dips in the record are produced by varying shielding
of the detector which is caused by nose-cooe rotation.
The'curves sbown in
Fig. &.15 are plotrad by taking readings at the maxiweoe points of these cycles.
Mo data are available from Teak Station 50.
Total gamma doses received at each station as measured by the various
types of detectors are summmrized in Table &.8.
The total dose as seen by
dose-rate-versus-tine instruments was obtained by graphical integration to a
point where the rate had decreased to 0.01 percent or less of its original
walce.
The gauma-dose-rate instruments recovered from Teak and Orange, and a
Spare which had aot been flown, were recalibrated on the same cobalr 60 source
used for preshot calibration.
There vere no significant differesces in the
two sets of calibrations after correction for the interim decay of the source
strength.
Slight indications were noted on the recording channel allocated to the
total ganma dose tramsducers at Teak Stations 209 and 252, but these vere so
close to noise lewel as to be unreliable.
The lower detection threshold of
_ these units was in excess of 20,000 roentgens.
Results from the total gamr
transducers at Orange Stations 1152 and 1255 are given in Yable. 4.4.
A zero-
level shift occurred in these two telemetering channels; therefore, the integrated dase was read out as of the tine of the postshot calibration sequence
when a zero-leve! reference was available.
Fils badges used were unshielded triple packs of DuPont emulsions 502,
834,° aod 1290, and packs of unshielded Eastman double-coated emulsion 548-0.
The approxicate upper limits of measurement for these equlsions are 20, 1000,
10,000, and 38,000 roentgens, respectively.
#9762.
Joh
Class dosimeters vere Corning
Locations of the various components are shown in Fiz. 3.5.
ity
Peper 125 and 12a
are deleted *
I:
CC