Measurement of radiation induced transients in hybrid microcircuits by magnetic thin film sensor/recorders

Technical Report · Tue Sep 21 00:00:00 EDT 1976

DOI:https://doi.org/10.2172/7126263· OSTI ID:7126263

Hsieh, E. J.; Vindelov, K. E.; Brown, T. G.; Miller, D. E.

Magnetic thin film transient current sensor/recorders were modified to make two types of nuclear test measurements, transient currents in hybrid microcircuits and internal electromagnetic pulse (IEMP) fields. The measurements were made possible by the invention of split-domain sensor/recorders which can measure bilateral currents and can be reset and readout on location. The sensor/recorders were used in two underground nuclear tests and numerous calibration tests in radiation-simulation machines. The data showed that the nuclear environment had negligible effect on the sensor/recorder's operation and the recorded informations on the sensor/recorders were the signals intended to be monitored. Also, the experimental data agreed with the theoretical analysis in controlled experiments. The data were examined first by on location readout with a magnetic tape viewer and later by Kerr magneto-optic readout in the laboratory. To translate the data into current readings, we reconstructed facsimile data (on each of the sensor/recorders) in the laboratory by current pulses with the same pulse width as the radiation event. An additional check on the accuracy of the data was made by using both the sensor/recorder and the conventional pickup-oscilloscope-camera technique to monitor the same current lead in a simulated radiation environment. Over five runs were made, and the agreement among the two measurement methods was within 25%. The data collectively implied that the measurements were reliable and dependable.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7126263
• Report Number(s): UCID-17269
• Country of Publication: United States
• Language: English

Related Subjects

440200* -- Radiation Effects on Instrument Components
Instruments
or Electronic Systems
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CALIBRATION
ELECTROMAGNETIC PULSES
ELECTROMAGNETIC RADIATION
ELECTRONIC CIRCUITS
EXPLOSIONS
INTERNAL ELECTROMAGNETIC PULSES
MICROELECTRONIC CIRCUITS
NUCLEAR EXPLOSIONS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RADIATIONS
RECORDING SYSTEMS
TRANSIENTS
UNDERGROUND EXPLOSIONS