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|  MIL-D-70789A (AR)
Calibration certification of the facilities to be used are
required by the Contracting Officers Technical Representative
(COTR), 45 days prior to the nuclear test. Verification of the
wave shape of the test simulator is required. Calibration and
wave shape verification shall be supplied to the COTR by the
contractor.
Simulation tests that do not reproduce all the required
parameters of any stated environment must be extended through
analysis to indicate the significance of that test and its
relation to the threat environment.
4.8.8.2 Electromagnetic Pulse (EMP). The equipment in its
intended deployment configuration(s) and operational modes, which
are worst case for the nuclear EMP environments, shall be exposed
at the specified threat levels. Ground-based systems and
equipment shall be tested within the irradiation volume of an
appropriate radiated-wave, ground-effect EMP simulator (e.g., the
Harry Diamond Laboratories' Army EMP Simulator Operations
Placement of the system equipment within the simulator
(AESOP)).
test volume must ensure for worst-case EMP coupling (i.e., by
maximum allowable separation of the system equipment, and maximum
extension of the system interconnecting cables paralleled to the
electric field and perpendicular to the magnetic field). Current
injection tests are necessary to verify the functionality of and
hardness margin afforded by the protection devices employed at
the equipment signal and power interfaces.
The equipment shall be exposed at threat level in the above
orientations and in each operating mode of the equipment. The
equipment shall meet the operational requirements of 3, upon
completion of threat level tests. Where approved by the
government, test data to satisfy the EMP requirements may be
obtained by extrapolation of diagnostic test levels to threat
level and current injection pulsing at the calculated level.
4.8.8.3 Initial nuclear radiation. For the purpose of
design, but not validation testing, optical components,
electronic pieceparts, and circuits for which nuclear test data
are available, or for which an acceptable level of confidence has
been established through mathematical analysis need not be
subjected to further nuclear design testing. Acceptance of these
optical components, electronic pieceparts, circuits and
mathematical analysis will be determined by the procuring agency
from data or analyses supplied to the government by the
contractor. Nuclear survivability at the specified temperature
extremes will be demonstrated by appropriate analysis and tests
or, where acceptable, by analysis alone. The assembled equipment
shall be tested for hardness to exposure to neutron fluence,
total dose, and peak gamma dose rate.
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