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Effects and mitigation of pulsed power radiation on optical fiber velocimetry

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/5.0088613· OSTI ID:1872033
We report optical fiber diagnostics are extensively used in pulsed power experiments, such as the Sandia Z machine. However, radiation produced in a pulsed power environment can significantly affect these measurements. Catastrophic fiber darkening may be mitigated with shielding, but no flexible material can stop all radiation produced by the machine and/or target. Radiation-induced refractive index modulations are particularly challenging for optical interferometry. Several approaches for radiation-tolerant photonic Doppler velocimetry are discussed here.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003525
OSTI ID:
1872033
Alternate ID(s):
OSTI ID: 1866007
Report Number(s):
SAND2022-6911J; 706647
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 29; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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