Chapter 4: Stupitskiy and Space-Based Plasma Guns (2019–2020)

4. Stupitskiy and Space-Based Plasma Guns (2019–2020)

The third distinct Russian plasma-related effort — and the one that most directly closes the technology transfer loop described in Chapter 1 — is the space-based plasma gun research conducted by Yevgeniy Stupitskiy at the Institute of Applied Physics (IAP) in Nizhny Novgorod. Emerging into the open-source record in 2019–2020, this program represents Russia's most credible active plasma weapons research effort and the latest expression of a 66-year sustained interest in plasma weapons technology. It focuses on the development of compact toroid accelerators for potential orbital anti-satellite (ASAT) applications, explicitly referencing the 1990s US MARAUDER experiments at Phillips Laboratory. However, it is essential to categorize this effort correctly: the Stupitskiy/IAP plasma gun is research-phase. It is the most credible active Russian plasma weapons research in the open-source record, but it has not been deployed, and no confirmed orbital test has occurred.

4.1 Yevgeniy Stupitskiy and the Institute of Applied Physics

Yevgeniy Stupitskiy is a physicist at the Institute of Applied Physics (Institut Prikladnoy Fiziki, IAP) of the Russian Academy of Sciences, located in Nizhny Novgorod. The IAP was founded in 1976 by Academician A.V. Gaponov-Grekhov — the same Gaponov-Grekhov identified in Chapter 2 as a key scientific figure connected to the Avramenko plasmoid weapon program. The IAP is one of Russia's premier institutions for plasma physics, high-power electronics, and electrodynamics research, with a particular strength in the physics of compact toroidal plasmas and their acceleration. The institutional identity and research focus of the IAP are established.

The connection between Gaponov-Grekhov (founder of IAP and Avramenko program associate) and Stupitskiy (IAP physicist leading the space plasma gun research) is not coincidental. It represents the institutional continuity that characterizes the entire Russian plasma physics research program: the same institutes, the same scientific networks, and the same physics persist across decades and across program transitions. The IAP that hosted Gaponov-Grekhov's plasma physics research in the 1990s is the same IAP that hosts Stupitskiy's space plasma gun research in the 2010s–2020s. This institutional continuity is established.

4.2 Space Plasma Gun Development

Stupitskiy's research, as documented in academic publications and Western analytical reporting (including The Space Review), focuses on the development of plasma guns capable of accelerating "donut-shaped blobs of plasma (compact toroids) to high speeds" for space-based applications. The physical concept is directly analogous to the US MARAUDER program: a coaxial plasma gun forms a compact toroid and accelerates it to high velocity using electromagnetic (J times B) forces. The compact toroid, maintaining its coherence as a self-contained plasma structure, travels through space to interact with a target satellite. The existence of this research and its general focus are established through published academic literature.

The space environment offers both advantages and challenges for plasma gun applications. The absence of atmospheric drag means that a compact toroid can travel indefinitely once accelerated — there is no aerodynamic deceleration to limit its range. However, the absence of atmospheric pressure also means that the plasma will expand more rapidly than in atmospheric conditions, potentially limiting the toroid's coherence time. Stupitskiy's research addresses these challenges through the study of compact toroid stability in vacuum conditions and the optimization of gun geometry for space deployment. These are genuine research problems — the fact that they are being studied confirms the research-phase status of the program.

4.3 References to the US MARAUDER Experiments

The most striking aspect of Stupitskiy's published research is its explicit reference to the 1990s MARAUDER experiments conducted at Phillips Laboratory (later the Air Force Research Laboratory) at Kirtland Air Force Base, New Mexico. The MARAUDER program, which ran from 1988 through approximately 1993, demonstrated the acceleration of 1 to 2 milligram plasma toroids to velocities corresponding to 100 billion g (9.8 times 10 to the 11th power meters per second squared) using a coaxial plasma gun powered by the 9.5 MJ Shiva Star capacitor bank. The MARAUDER program's OSTI abstract explicitly states that the program was "NOT a magnetic confinement fusion program" — it was a weapons program. The MARAUDER parameters and OSTI abstract are established.

Stupitskiy's citation of MARAUDER creates a remarkable circular technology transfer pathway. The documented chronology is as follows:

1. 1965: Soviet plasmoid research documented in DTIC AD0678694 and AD0620822 — the earliest documented plasmoid research.
2. 1988–1993: US MARAUDER program at Phillips Laboratory, using coaxial plasma gun technology analogous to the Soviet research.
3. 2019–2020: Russian Stupitskiy space plasma gun research at IAP, explicitly referencing the MARAUDER experiments.

This circular pathway — from Russia to the United States and back to Russia — underscores Russia's unique position in the global plasma physics landscape. Russia is simultaneously the originator of the technology (1960s) and a current researcher advancing the state of the art (2019–2020). No other nation occupies both positions. The circular transfer pathway is strongly inferred — the chronological evidence is strong, but the specific mechanism of transfer is not directly documented.

4.4 Miniaturization for Orbital Platforms

A key focus of Stupitskiy's research is the miniaturization of plasma gun technology for deployment on orbital platforms. The MARAUDER experiments required the 9.5 MJ Shiva Star capacitor bank — a facility-scale pulsed power system weighing tons and occupying a substantial building at Kirtland Air Force Base. A space-based plasma gun must achieve comparable compact toroid formation and acceleration in a package that can be launched into orbit and operated on a satellite bus with limited mass, volume, and power.

The miniaturization challenge involves several interrelated engineering problems:

• Pulsed power scaling: Reducing the capacitor bank from the multi-megajoule scale (Shiva Star: 9.5 MJ) to a scale compatible with satellite deployment — potentially tens to hundreds of kilojoules — while maintaining sufficient energy for compact toroid formation.
• Coaxial gun geometry: Optimizing the electrode geometry (the problem addressed in the 1960s Soviet research documented in DTIC AD0620822) for a miniaturized gun capable of producing coherent compact toroids at reduced energy scales.
• Thermal management: Dissipating the heat generated by pulsed power discharge in the vacuum environment of space, where convective cooling is unavailable.
• Power supply: Providing the electrical energy for repeated plasma gun discharges from a satellite platform — potentially through solar panels charging a capacitor bank over time, or through a compact nuclear power source.

Stupitskiy's research addresses these challenges through a combination of compact toroid physics optimization (maximizing the energy delivered to the toroid per unit of input energy) and pulsed power engineering (minimizing the mass and volume of the capacitor bank). The research is assessed to be in the experimental and design phase rather than in operational deployment — no Russian space-based plasma gun has been confirmed as deployed, and the technical challenges of orbital miniaturization remain substantial. This assessment is established based on the absence of any deployment evidence and the documented research focus on fundamental engineering challenges.

4.5 Anti-Satellite Weapon Application

The primary military application of a space-based plasma gun is anti-satellite (ASAT) warfare. A compact toroid accelerated to high velocity in orbit could intercept and disable an adversary's satellite through several mechanisms:

1. Kinetic impact: The compact toroid, traveling at hypervelocity, delivers kinetic energy to the target satellite — analogous to the MARAUDER kill mechanism but applied to orbital targets.
2. Electromagnetic disruption: The plasma toroid's electromagnetic fields could disrupt the target satellite's electronics, communications, or sensor systems without necessarily destroying the physical structure — a "soft kill" mechanism that could be more politically acceptable than a debris-generating kinetic kill.
3. Plasma wave transparency reduction: Stupitskiy's research describes the use of plasma waves to "decrease satellite transparency" — a mechanism by which a plasma discharge in the vicinity of a satellite could interfere with its communications, radar, or optical systems by creating an absorbing or scattering plasma environment around the target.

The plasma wave transparency reduction mechanism is particularly significant because it represents a non-kinetic, potentially reversible ASAT capability — one that could temporarily disable a satellite without creating the persistent orbital debris that characterizes kinetic ASAT weapons (such as the 2007 Chinese anti-satellite test that created thousands of pieces of trackable debris). A plasma-based ASAT system could deny an adversary's space capabilities without triggering the international condemnation associated with debris-generating kinetic kills. However, all of these mechanisms are plausible physics — consistent with known compact toroid behavior but not demonstrated at operational scale in the space environment.

4.6 Institutional Oversight: RAS, Ministry of Defense, Rosatom

The Stupitskiy space plasma gun program operates under a tripartite oversight structure that reflects the intersection of academic science, military requirements, and nuclear infrastructure that characterizes the entire Russian plasma physics research enterprise:

• Russian Academy of Sciences (RAS): The IAP is an institution of the RAS, providing the academic framework and scientific legitimacy for Stupitskiy's research. The RAS connection links the space plasma gun program to the same institutional network that supported the Avramenko claims (through Academician Prokhorov, RAS President Osipov, and Academician Gaponov-Grekhov).
• Ministry of Defense: The military application of space-based plasma guns — particularly the ASAT mission — places the program within the oversight of the Russian Ministry of Defense and the VKO (Aerospace Defense) framework that also oversees the Avangard system.
• Rosatom: The nuclear energy corporation's oversight of TRINITI and VNIIEF connects the space plasma gun program to the broader Russian nuclear weapons complex, ensuring access to the pulsed power expertise and high-energy-density physics capabilities developed for thermonuclear weapons research.

4.7 The Space Review Reporting and Open-Source Documentation

The primary Western open-source documentation of the Stupitskiy program comes from The Space Review, an online publication focused on space policy and national security space issues. The Space Review's reporting on Russian space-based plasma weapons research brought Stupitskiy's work to the attention of Western defense analysts and established the program's existence in the open-source record. The reporting noted the explicit references to the MARAUDER experiments and assessed the program as being in the research and development phase rather than operational deployment.

The Space Review reporting is significant because it represents the first Western analytical acknowledgment that Russia was actively pursuing space-based plasma weapons research — a capability that goes beyond the atmospheric Avramenko claims and the hypersonic Avangard to encompass orbital warfare. The reporting also noted the connection between Stupitskiy's plasma gun research and the broader Russian ASAT modernization effort. However, it is important to note that Russia's fielded counterspace systems are kinetic (Nivelir) and electronic (Krasukha-4), not plasma-based. The Stupitskiy research represents a potential future capability, not a current operational one.

4.8 Russia-China Collaboration: The HIT-PINP Connection

An important dimension of the Stupitskiy research program is the documented Russia-China collaboration in plasma physics through the Harbin Institute of Technology (HIT) and the Physics Institute of the Chinese Academy of Sciences (PINP). This collaboration, documented in the open-source record, connects Russian compact toroid research with Chinese FRC and plasmoid physics programs. The Russia-China collaboration through HIT-PINP is established — documented through institutional records, joint publications, and personnel exchanges.

The significance of the HIT-PINP connection is twofold. First, it indicates that Russian plasma physics expertise is being shared with China, potentially accelerating Chinese development of compact toroid and FRC technologies. Second, it creates a multilateral technology transfer pathway that extends beyond the US-Russia circular loop described earlier: Soviet plasmoid research informed the US MARAUDER program, which is referenced by Russian Stupitskiy research, which is connected to Chinese FRC research through HIT-PINP. The global plasma physics research network is more interconnected than a simple bilateral analysis would suggest.

4.9 Assessment: Research Phase, Not Operational

Despite its research-phase status, the Stupitskiy program is strategically significant for three reasons. First, it is the most credible active Russian plasma weapons research effort in the open-source record — documented through academic publications, not through unverified journalistic claims. Unlike the Avramenko claims (unverified but credible-sounding) or the Avangard (a hypersonic system, not a plasma weapon), the Stupitskiy research is a genuine plasma weapons research program with verifiable academic documentation. Second, it confirms the institutional continuity of the Russian plasma physics enterprise: the same network of institutes, academicians, and oversight structures that produced the Avramenko claims and the Avangard is now producing the space plasma gun research — sustaining a 66-year continuum of plasma weapons interest. Third, it closes the technology transfer loop, connecting the 1950s–60s Soviet plasmoid origins through the 1988 US MARAUDER program to contemporary Russian research — and extending the network to China through the HIT-PINP connection.

The Stupitskiy program is the strongest evidence in the open-source record that Russia is actively pursuing plasma weapons technology — not as a deployed capability, not as an unverified claim, but as a serious, state-sponsored research effort with a clear path toward potential future development. It is the most credible component of Russia's 66-year plasma weapons interest continuum, and it demands continued monitoring as it progresses through the research and development pipeline.