Infrared absorption spectroscopy of dynamically compressed water

Conference · Mon Feb 03 04:00:00 EST 2020

OSTI ID:1599408

Ramsey, Darrell ^[1]; Mance, Jason ^[1]; La Lone, Brandon ^[1]; Dolan, Dan ^[2]

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1. Mission Support and Test Services, LLC (MSTS)
2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Streaked visible spectroscopy is well established in dynamic compression research. Infrared measurements remain problematic, however, due to the diminishing sensitivity of streak camera photocathodes beyond 800 nm. Time-stretch techniques offer an alternative method for probing infrared features during single-event experiments. This paper discusses the development of a time-stretch spectroscopy diagnostic using dispersed supercontinuum laser pulses. The technique is applied to near-infrared measurements of liquid water during multiple shock compression.

• Research Organization: Nevada National Security Site/Mission Support and Test Services LLC
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10)
• DOE Contract Number: NA0003624
• OSTI ID: 1599408
• Report Number(s): DOE/NV/03624--0687
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
time-stretch spectroscopy
supercontinuum laser
dynamic compression research
liquid water
infrared measurements