plx

EXPERIMENT dossier

PLX

EXPERIMENT Experiments Also: PLX, Plasma Liner Experiment, PLX-α

01 Executive_Summary

LANL experiment for Plasma-Jet-Driven Magneto-Inertial Fusion (PJMIF). 3m diameter spherical chamber, 36 plasma guns, 0.25 MJ total stored energy, ~10 μs shots, densities up to 10^17 cm^-3. 36 supersonic plasma jets at ~50 km/s form argon liner that compresses magnetized target. Key innovation: 'tangled magnetic field' target does NOT suffer from MHD instabilities found in spheromaks or FRCs. Simulations show compression to >1 keV possible. Published in Physics of Plasmas (October 2024). Partners: HyperJet Fusion Corp, NearStar Fusion, UAH (Cassibry), Univ. of New Mexico. ARPA-E BETHE funded. Commercialization roadmap: industry day July 30, 2025. Key personnel: S.C. Hsu (LANL, former ARPA-E ALPHA director), F. Chu, S.J. Langendorf, A.L. LaJoie. Fundamentally different MTF approach — plasma jets instead of solid liners (FRCHX, MagLIF) or lasers (NIF).

02 Definition

An experiment using converging plasma jets to form a spherically converging liner for MTF/MIF. PLX succeeded FRCHX in the LANL FRC/MTF lineage.

Related terms: MTF MIF FRCHX HyperJet

03 Deep_Dive_Intelligence

Overview

Entity Type: Experiment — PLX is a scientific experiment or test program.

Technical Definition

An experiment using converging plasma jets to form a spherically converging liner for MTF/MIF. PLX succeeded FRCHX in the LANL FRC/MTF lineage.

Related Concepts: MTF, MIF, FRCHX, HyperJet

Network Relationships

PLX connects to 5 entities in the intelligence network:

Experiments (1):

→ MagLIF: Alternative MTF approach (plasma jets vs z-pinch liner)

Organisations (2):

→ HyperJet Fusion: Commercial partner
→ NearStar Fusion: Commercial partner

Persons (1):

→ Jason Cassibry: UAH modeling collaborator

Programs (1):

→ ARPA-E ALPHA: ARPA-E BETHE funded

Source Documents

Intelligence derived from 4 source documents:

APS DPP 2025 — PLX BETHE, liner density, tangled field target (multiple presentations)
ARPA-E presentation — 'PLX Investigates a Reactor-Friendly Alternative' (2025)
Physics of Plasmas 31, 102701 (October 2024) — liner formation
arXiv 2508.09895 (2025) — FLASH/OSIRIS/HELIOS simulations

05 Related_Entities (5)

UAH modeling collaborator

Alternative MTF approach (plasma jets vs z-pinch liner)

05b Related_Topics (3)

Field-Reversed Configuration

usa → russia → china → japan → israel →

Magnetized Target Fusion

usa → russia → china →

Directed Energy

usa → russia → china → israel → uk → germany → france → japan →

07 Key_Findings

▸ Entity Type: Experiment — PLX is a scientific experiment or test program.
▸ Related Concepts: MTF, MIF, FRCHX, HyperJet
▸ → MagLIF: Alternative MTF approach (plasma jets vs z-pinch liner)
▸ → HyperJet Fusion: Commercial partner
▸ → NearStar Fusion: Commercial partner

09 Timeline_Mentions (10)

2010

PLX Facility Construction Begins

Dr. Scott C. Hsu leads the construction of the Plasma Liner Experiment (PLX) at LANL, pivoting toward PJMIF technology.

fusion-physics

2010

PLX Facility Construction

The Plasma Liner Experiment (PLX) facility is constructed at LANL, marking a shift toward Plasma-Jet-Driven Magneto-Inertial Fusion.

fusion-physics

2012

PLX Supersonic Plasma Jet Characterization

The Plasma Liner Experiment (PLX) completes characterization of merging supersonic argon plasma jets, a potential standoff driver for magneto-inertial fusion.

fusion-physics

2015

ARPA-E ALPHA Program Launches

ARPA-E ALPHA launches. Nine MIF/MTF projects. Bridge between weapons-lab MIF and commercial fusion. Helion, HyperJet, Zap Energy funded.

Programs

2016

FRCHX closeout and PLX succession

FRCHX program closeout; FRC/MTF lineage transitions to PLX and the CFR black track.

defense-programs

2016

Strategic Pivot to PJMIF and PLX-alpha

Dr. Scott C. Hsu becomes lead PI for the ARPA-E PLX-α project, solidifying a pivot from solid-liner MTF to plasma-jet driven fusion.

fusion-physics

2016

Dr. Hsu Leads PLX-alpha

Dr. Scott Hsu becomes the lead PI for the ARPA-E sponsored PLX-alpha project, solidifying the pivot to PJMIF.

personnel

2017

PLX-Alpha and PJMIF Development

Scott C. Hsu details the Plasma Liner Experiment-ALPHA (PLX-alpha) and the development of Plasma-Jet-Driven Magneto-Inertial Fusion (PJMIF) as a low-cost pathway to fusion.

fusion-physics

2020

PLX Upgrade to 36 Guns

The Plasma Liner Experiment at LANL is scheduled for an upgrade to a full set of 36 plasma guns.

fusion-physics

2024

PLX demonstrates spherical plasma liner formation

36 jets form argon liner. Tangled field target avoids FRC/spheromak instabilities. Physics of Plasmas publication.

fusion-research

View Full Timeline → View on Network Graph →

10 FAQ

What is PLX? ▾

What role does PLX play in the research network? ▾

PLX is classified under the "Experiments" category. LANL experiment for Plasma-Jet-Driven Magneto-Inertial Fusion (PJMIF). 3m diameter spherical chamber, 36 plasma guns, 0.25 MJ total stored energy, ~10 μs shots, densities up to 10^17 cm^-3. 36...

What evidence supports the PLX assessment? ▾

The intelligence assessment for PLX is supported by 4 primary sources. Key sources include "Experiment to Form and Characterize a Section of a Spherically Imploding Plasma Liner", "Exploring lower-cost pathways to economical fusion power", and "Formation and Study of a Spherical Plasma Liner for Plasma-Jet-Driven Magneto-Inertial Fusion". These documents provide the evidentiary basis for the analysis.

How does PLX connect to other entities in the network? ▾

PLX is connected to 5 entities in the intelligence network, including HyperJet Fusion (organisation), NearStar Fusion (organisation), and Jason Cassibry (person). Key relationships: HyperJet Fusion: Commercial partner, NearStar Fusion: Commercial partner, ; Jason Cassibry: UAH modeling collaborator.

What was the PLX experiment? ▾

What facility hosted PLX? ▾

PLX was associated with HyperJet Fusion (Commercial partner).

What is the technical definition of PLX? ▾

An experiment using converging plasma jets to form a spherically converging liner for MTF/MIF. PLX succeeded FRCHX in the LANL FRC/MTF lineage. Related concepts: MTF, MIF, and FRCHX. Category: Fusion Physics.

What are the alternative names or aliases for PLX? ▾

PLX is also known as: PLX, Plasma Liner Experiment, and PLX-α. These alternative names appear across different source documents and may reflect codenames, abbreviations, or historical references.

What external sources document PLX? ▾

PLX is documented by 4 external sources, including 2 journal article, 1 research paper, and 1 conference abstract. Notable references include "Experiment to Form and Characterize a Section of a Spherically Imploding Plasma Liner", "Exploring lower-cost pathways to economical fusion power", and "Formation and Study of a Spherical Plasma Liner for Plasma-Jet-Driven Magneto-Inertial Fusion".

What is the historical timeline for PLX? ▾

PLX is referenced across documents spanning 2024–2025, with activity noted in 2024 and 2025. This temporal range is derived from the primary source documents in the research archive.