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Title: Diagnosing laser-preheated magnetized plasmas relevant to magnetized liner inertial fusion

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4938047· OSTI ID:1237677

In this paper, we present a platform on the OMEGA EP Laser Facility that creates and diagnoses the conditions present during the preheat stage of the MAGnetized Liner Inertial Fusion (MagLIF) concept. Experiments were conducted using 9 kJ of 3ω (355 nm) light to heat an underdense deuterium gas (electron density: 2.5 × 1020 cm-3 = 0.025 of critical density) magnetized with a 10 T axial field. Results show that the deuterium plasma reached a peak electron temperature of 670 ± 140 eV, diagnosed using streaked spectroscopy of an argon dopant. The results demonstrate that plasmas relevant to the preheat stage of MagLIF can be produced at multiple laser facilities, thereby enabling more rapid progress in understanding magnetized preheat. Results are compared with magneto-radiation-hydrodynamics simulations, and plans for future experiments are described.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; FC02-04ER54789; FG02-04ER54786; NA0001944
OSTI ID:
1237677
Alternate ID(s):
OSTI ID: 1234095
Report Number(s):
SAND-2015-6697J; PHPAEN; 598946
Journal Information:
Physics of Plasmas, Vol. 22, Issue 12; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

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Cited By (5)

Increasing the magnetic-field capability of the magneto-inertial fusion electrical discharge system using an inductively coupled coil journal March 2018
Laser entrance window transmission and reflection measurements for preheating in magnetized liner inertial fusion journal June 2018
Magnetised thermal self-focusing and filamentation of long-pulse lasers in plasmas relevant to magnetised ICF experiments journal September 2018
Enhancing performance of magnetized liner inertial fusion at the Z facility journal November 2018
Origins and effects of mix on magnetized liner inertial fusion target performance journal January 2019