1.5.2 Air monitoring equipment with appropriate connectors to
power leads will be furnished by problem 6.4i.
1.5.3 Power leads aboard ABLE and BAKER to the instrument site
will be installed by the Mare Island Naval Shipyard. Leads are two conductor, rated at 20 amps., furnishing 115v., 60cye power.

Leads to be

terminated in waterproof Amphenol plugs furnished by problem 6.4i.
1.5.4

Instruments to be located and secured aboard Able and

Baker prior to west coast departure date.

1.5.5 Data removal will be accomplished by 6.4i. In case of
overdose to 6.41 personnel, standby man from support group will remove
data.

1.6

Assumptions and Limitations
1.6.1

Same as basic plan.

1.6.2

Assumptions

1.6.2.1

Airborne inhalation hazards may exist and are

1.6.2.2

Such hazards can be "magnified" in the internal

independent of gamma background levels.

spaces of a ship as a result of the ventilation system.

1.6.2.3 Adequate countermeasures (stoppage of ship blowers,
wearing respirators) can be effective only while the hazard exists, indicating the necessity for a quick response warning system.
1.6.3

Limitations

1.6.3.1 The air monitor will-be designed to give warning
within a minute if more than 0.3 microcuries of beta-emitting particles
are present on the dust per cubic meter of air surrounding a ship. It
is expected that this time lag is small enough to provide ample warning
should a high concentration present itself.

1.6.3.2

The instrument is designed to record the presence

of airborne beta contaminants in the presence of a fairly high gamma back-

ground (10 r/hr; 200 kev gamma should give less than 10 percent full-

scale reading).e Above some critical level the instrument will be made
inoperative, but the immediate danger from bodily gamma exposure will then
require effective countermeasures exceeding those necessary for the beta
inhalation problem.
_

ST, LOViS FRC

1.6.3.3 The instruments will be semi-portable in nature,
weighing about 50 lb, so that they can be moved about a ship and plugged
in an a.ce outlet. In this test, however, they will be tied to a
specific location.

Select target paragraph3