PRIVACYACT MATERIAL REMOVED
and Lt. Commande r a,
and the recommendations formalizing this
request were set forth in a memorandum to biajor Daver on22 December1947.
Changes were as follows:
Model MX-2
~ -
Reduced quantity from 20 to 10
Mojel MX-6
- -
Ordered 20
(New instrument)
The model MK-6 was to be manufactured in accordance with the
following snecifications:
ae
Weight:
10 1bs maximun.
be
Maximum case dimensions:
ce
Handle:
de
Case to be metal, heavy enough for field use.
4” x 6" x 10”.
hinged, volished unpainted metal or plastic.
Surface to be
smooth for ease of decontamination; anodized, lacquered or
smooth paint finish (no crackel-finish).
oe.
Case to be water-proof tested under 5 feet of water for two hours.
f.
Detector component to be an ionization chamber containing sealed
air at aporoximately 740 mm mercury pressure at 20° C.
_ g
The instrument to be tropicalized in accordance with standard
Army-Navy specifications.
Following were the circuit requirements:
a.
It must be possible to check the zero setting in a field equal
to the maximum radiation measured by the instrument.
b.
After 60 seconds warm-up period, the zero drift to be less than
5% of full scale per hour on any range.
ce
|
Five ranges of sensitivity were requested:
Section IX
17
PRIVACY ACT MATERIAL REMO
VED
mak