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Title: 4D spatiotemporal evolution of liquid spray using kilohertz-rate x-ray computed tomography

Journal Article · · Optics Letters
 [1];  [2]; ORCiD logo [3];  [4];  [5];  [6];  [7]; ORCiD logo [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Air Force Research Lab. (AFRL), Wright-Patterson AFB, OH (United States)
  2. Purdue Univ., West Lafayette, IN (United States)
  3. Purdue Univ., West Lafayette, IN (United States); Spectral Energies, LLC, Beavercreek, OH (United States)
  4. Purdue Univ., West Lafayette, IN (United States); Fort Lewis College, Durango, CO (United States)
  5. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Fort Lewis College, Durango, CO (United States)
  6. Air Force Research Lab. (AFRL), Edwards AFB, CA (United States)
  7. 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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