Gemini 4 Experiment Debriefing, 1967

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8.
MSC-1, Electrostatic Charge
Before rendezvous missions are
attempted, an investigation
must be made of the possibility
of inadvertent ignition of
pyrotechnics and other detri­
menta I effects due to discharge
of electrostatic charge potentials
during rendezvous.
In this
experiment, an electrostatic­
potential meter, which protrudes
through the wa 11 of the space­
craft adapter assembly, wi 11 be
used to detect and measure any
accumulated electrostatic charge
that may be created on the
surface of the spacecraft by
ionization from engine exhaust.
This dota wi 11 be a no Iyzed to
determine if the charge is adequate
to create a rendezvous hazard. Fig­
ure 10 shows the detector instal lotion.
9.
MSC-2, Proton Electron
Spectrometer
This experiment is designed to
measure the quantity and energy
of protons and electrons present
immediately exterior to the
orbiting spacecraft.
This wil I be
accomplished by means of a
scintillating-crystal, charged­
particle analyzer mounted on
the adapter assembly of the
spacecraft.
Data from this
experiment wil I be used to
correlate radiation measure­
ments made inside the space­
craft and to predict radiation
levels on future space missions.
The proton electron spectrometer
instal lotion is shown in Figure 11 .
MSC-1
ELECTROSTATIC
CHARGE
FIG. 10
M-913-65-04
MSC-2
PROTON
ELECTRON
SPECTROMETER
FIG. 11
5/24/65
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