Raman spectroscopic analysis of model solid rocket propellant for the detection of stabilizer decay

Carlton Farley III; Aschalew Kassu; Jonathan Mills; Paul Ruffin; Michael Curley; Sandra Sadate-Moualeu; James Parker; Christopher Marshall; Jeremy Rice; Brian McDonald; Anup Sharma

doi:10.1117/12.2568206

20 August 2020 Raman spectroscopic analysis of model solid rocket propellant for the detection of stabilizer decay

Carlton Farley III, Aschalew Kassu, Jonathan Mills, Paul Ruffin, Michael Curley, Sandra Sadate-Moualeu, James Parker, Christopher Marshall, Jeremy Rice, Brian McDonald, Anup Sharma

Author Affiliations +

Proceedings Volume 11498, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XIV; 114980A (2020) https://doi.org/10.1117/12.2568206
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

The primary objective of this effort is to demonstrate the efficacy of the Raman spectroscopy technique for detecting and evaluating the health of propellant stabilizers commonly used in missiles stored under a range of ambient conditions. Tincured silicone rubber doped with a commonly used propellant stabilizer N-methyl-4-nitroaniline (MNA) and ammonium nitrates used in explosives has been investigated using 532 nm and 785 nm wavelength laser Raman systems. The detected propellants’ Raman peak intensity ratios are used to analyze the results. Calibration curves with error bars are created using more than 30 data runs. The results indicate both systems are suitable to detect fractions of these chemicals as low as 0.2 percent within a few seconds of integration time. The calibration curves created for all the samples measured show a consistent linear increase to the ratio indicating the reliability of the measurements.

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Carlton Farley III, Aschalew Kassu, Jonathan Mills, Paul Ruffin, Michael Curley, Sandra Sadate-Moualeu, James Parker, Christopher Marshall, Jeremy Rice, Brian McDonald, and Anup Sharma "Raman spectroscopic analysis of model solid rocket propellant for the detection of stabilizer decay", Proc. SPIE 11498, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XIV, 114980A (20 August 2020); https://doi.org/10.1117/12.2568206

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