Temperature and pressure instrumentation for underground chemical explosive testing at the Nevada National Security Site

Underground chemical explosive testing has been conducted at the Nevada National Security Site under Physics Experiment 1 (PE1) to generate data for multi-physics signature collection and model prediction validation. This paper describes the design and emplacement of temperature and pressure setups developed to capture dynamic pressure and temperature within the chamber of the chemical explosion (PE1-A). Dynamic temperature measurements were accomplished with the use of optical spectrometers, and dynamic pressure was measured with piezoelectric blast pressure sensors.