Optical sensors to probe temperature in explosive fireballs (DTRA)

To support DTRA’s mission, the ASL developed different types of optical sensors capable of characterizing the thermal environment inside explosive fireballs.

DTRA, Distribution Statement A (19-175): Approved for public release; distribution is unlimited.

References:

1. Benjamin R. Anderson and Hergen Eilers, “Modeling ex‑situ thermal impulse sensor responses to non‑isothermal heating profiles,” SN Appl. Sci. 1, 1623 (2019); https://doi.org/10.1007/s42452-019-1658-y

2. Benjamin R. Anderson, Natalie J. Gese, Michael Mark, Ray Gunawidjaja, and Hergen Eilers, “Optical thermocouples for explosive fireballs,” AIP Conference Proceedings 2272, 060002 (2020); https://doi.org/10.1063/12.0000929

3. Benjamin R. Anderson, Ray Gunawidjaja, and Hergen Eilers, “Chemically Bonded Thermal Impulse Sensors for Use in Extreme Environments,” J. Appl. Phys. 127 (5), 055102 (2020), https://doi.org/10.1063/1.5132549.

4. Benjamin R. Anderson, Steven Livers, Ray Gunawidjaja, and Hergen Eilers, “Fiber-based optical thermocouples for fast temperature sensing in extreme environments,” Opt. Eng. 58(9), 097105 (2019), https://dx.doi.org/10.1117/1.OE.58.9.097105.

5. Benjamin R. Anderson, Ray Gunawidjaja, and Hergen Eilers, “Spectroscopic Signatures of Sub-second Laser-Calcinated Dy 3+ -doped Oxide Precursors for use in ex-situ Thermal Impulse Sensors,” J. Phys. Chem. C 121, 20955 — 20966 m (2017).

6. Benjamin R. Anderson, Ray Gunawidjaja, Patrick Price, and Hergen Eilers, “Spectroscopic determination of thermal impulse in sub-second heating events using lanthanide-doped oxide precursors and phenomenological modeling,” J. Appl. Phys. 120, 083102 (2016), doi: 10.1063/1.4961418

7. Hergen Eilers, Thandar Myint, Ray Gunawidjaja, Jillian Horn, James Lightstone, Christopher Milby and Demitrios Stamatis (2013). Nanosized Thermosensors for Use in Explosions. MRS Proceedings, 1519, mrsf12-1519 mm02-09 doi:10.1557/opl.2012.1758.

8. H. Eilers, R. Gunawidjaja, T. Myint, J. Lightstone and J. Carney, “Irreversible Phase Transitions in Doped Metal Oxides for use as Temperature Sensors in Explosions,” Shock Compression of Condensed Matter – 2011, AIP Conf. Proc. 1426, 1577-1580 (2012).