4D spatiotemporal evolution of liquid spray using kilohertz-rate x-ray computed tomography
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Air Force Research Lab. (AFRL), Wright-Patterson AFB, OH (United States)
- Purdue Univ., West Lafayette, IN (United States)
- Purdue Univ., West Lafayette, IN (United States); Spectral Energies, LLC, Beavercreek, OH (United States)
- Purdue Univ., West Lafayette, IN (United States); Fort Lewis College, Durango, CO (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Fort Lewis College, Durango, CO (United States)
- Air Force Research Lab. (AFRL), Edwards AFB, CA (United States)
- Air Force Research Lab. (AFRL), Wright-Patterson AFB, OH (United States)
Four-dimensional (x, y, z, t) x-ray computed tomography was shown in an optically complex spray using an imaging system consisting of three x-ray sources and three high-speed detectors. The x-ray sources consisted of high-flux rotating anode x-ray tube sources that illuminated the spray from three lines of sight. The absorption along each absorption path was collected using a CsI phosphor plate and imaged by a high-speed intensified CMOS camera at 20 kHz. The radiographs were converted to a quantitative equivalent path length (EPL) of liquid using a variable attenuation coefficient to account for beam hardening. Moreover, the EPL data were then reconstructed using the algebraic reconstruction technique into high-speed time sequences of the threedimensional liquid mass distribution.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1575273
- Report Number(s):
- SAND--2019-3082J; 673580
- Journal Information:
- Optics Letters, Journal Name: Optics Letters Journal Issue: 20 Vol. 44; ISSN 0146-9592; ISSN OPLEDP
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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