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Electromagnetic

Integrity Engineering™

When failure is not an option.

EMF Testing, EMI Diagnostics & Troubleshooting, and EMC Consulting & Design

ranging from Printed Circuit Board Issues to 2,000,000 SF Facilities

Nuclear Fission - Fusion - Industrial - Scientific - Medical - Robotics - AI Data Centers - Semiconductor Manufacturing - Linear Accelerators - Drones and RF Systems - Logistics - Magnetometers

NEWS: June 19, 2026

ELEXANA AND VALAR ATOMICS ACHIEVE HISTORIC CRITICALITY MILESTONE FOR ADVANCED U.S. NUCLEAR ENERGY

ORANGEVILLE, UTAH — Valar Atomics has successfully achieved reactor criticality, marking a historic milestone in the advancement of next-generation nuclear energy in the United States. The achievement comes after approximately two years of design, engineering, construction, testing, and commissioning efforts involving Valar Atomics, its contractors, consultants, and supporting organizations.

Developed under the accelerated framework established by Presidential Executive Order 14301 and the national objective of demonstrating advanced nuclear technology by the July 4th deadline, the reactor represents a significant step forward

ELEXANA's design contributions were essential towards helping Valar cross the finish line.

ELEXANA has supported engagements for:

The US Navy

The Department of Energy

The Department of Homeland Security

The Department of Defense

The City of New York

The State of Texas

The State of Connecticut

The City of Scottsdale

The Township of Barnstable

Texas Instruments

SkyWater Technology

Siemens Energy

Marriot

Metro-North Railroad

Eversource

Steel Dynamics

Cleveland Cliffs Steel

Mitsubishi Electric Power Products

Jacobs

WSP

Valar Atomics

and many more great companies.

ELEXANA

wherever electrical and electronic performance

cannot be left to chance.

—> We provide EMC design and redesign for facilities and products, electromagnetic evaluation, and the forensic resolution of complex EMI problems conventional methods alone cannot solve.

Our ISO/IEC-17025 instrument accredited-certified calibrations are not the same as a supplier's certificate. It states the measurement uncertainty. That is what allows a compliance determination to be made defensibly, with the uncertainty applied and the decision rule stated, rather than a reading compared to a limit and called good.

NRC RG 1.180, EPRI TR-102323, IEC 60601-1-2, IEEE 644-2019, C95.1-2019, MIL-STD-461.

Where your troubleshooting ends,

our work begins.

We identify the problem

and design the solution.

When electrical and electronic systems fail without a clear reason,

ELEXANA shows up, identifies the root cause through a skillful electromagnetic engineering proprietary investigative methodology that includes measurement, analysis, and diagnostics…and, then provides the solutions with the most cost-effective and expeditious options first.

Clients contact ELEXANA when:

  • Critical equipment experiences intermittent failures that no one can explain.

  • Control systems, sensors, or instrumentation produce erratic measurements.

  • Interference is disrupting sensitive equipment or critical operations.

  • A product is failing EMI/EMC compliance testing.

  • Difficult grounding, bonding, or shielding problems persist.

  • Unknown RF sources are causing interference in facilities or laboratories.

  • A building has unexplained AC or DC magnetic fields.

  • Equipment is operating unusually hot without an obvious cause.

  • Workers receive electrical shocks when touching equipment or metal objects.

  • Robotics or automated systems behave unpredictably.

  • Lightning has damaged building systems or electronic equipment.

  • Medical or research instrumentation is affected by electromagnetic noise.

  • A worker or visitor has an implanted medical device, and the facility must ensure electromagnetic safety.

If previous troubleshooting efforts have failed to identify the root cause, ELEXANA provides the independent engineering expertise to investigate, diagnose, and resolve complex electromagnetic problems.

Engineering solutions for the world's

most difficult electromagnetic problems.

Our Core Services

What Differentiates

ELEXANA

Industries We Support

  • Nuclear Energy

  • Fusion Energy

  • Defense

  • Scientific Research

  • Semiconductor Manufacturing

  • AI, Robotics & Automation

  • Medical Technology

  • Advanced Manufacturing

  • Logistics

  • Transportation

  • Hotels and Luxury Buildings

Our Everyday Work

Recent Projects

Beyond EMC Testing —


ELEXANA engineers Electromagnetic Integrity™ — we investigate complex electromagnetic problems, determine their root cause, and engineer solutions for mission-critical systems.

Most EMC Test Labs

Verify compliance

Perform standardized tests

Identify symptoms

Issue test reports

Focus on products

ELEXANA

Investigates failures

Engineers custom solutions

Determines root cause

Delivers corrective actions

Solves facility, system, and equipment problems

ELEXANA - the originators of

ELECTROMAGNETIC

INTEGRITY

ENGINEERING™

for electrical and electronic systems.

What is Electromagnetic Integrity Engineering™?

Modern facilities are increasingly dependent on sensitive electronics, automation, robotics, high-speed communications, and complex electrical infrastructure.

Yet traditional engineering disciplines rarely consider how electromagnetic interactions influence the reliability and performance of these systems.

ELEXANA developed Electromagnetic Integrity Engineering™ to bridge that gap.

Electromagnetic Integrity Engineering™ is the engineering discipline focused on ensuring the reliable operation of electrical and electronic systems through the evaluation, design, measurement, and control of electromagnetic phenomena, including attenuation, mitigation, control, containment, grounding, bonding, EMI, ESD, power quality, thoughtful EMC design, and related environmental factors.

©2026 Photo: Jim Finn of ELEXANA - Electromagnetic Compatibility and Grounding Consulting Support for Garg Engineering, Metro North Railroad, The State of Connecticut

Leadership

James J. Finn
Founder and Senior Consultant

Jim leads Elexana's technical work and is on site for the engagements that require it.

He is brought in when a project cannot move forward. Systems fail for reasons nobody can locate, schedules stop, and conventional troubleshooting has already been exhausted. His practice starts by learning the client's system in full, to the working depth of the engineers who designed it, and the diagnosis proceeds from there. When existing methods cannot produce the data a problem requires, he develops the method that will. Several of the resulting test procedures and a patent-pending measurement tool are in use in the practice.

Problems identified outside the original scope get reported and solved. Clients across linear accelerators, driver assistance, autonomous ground vehicles, surgical robotics, industrial automation, semiconductor tooling, and nuclear and fusion facilities have engaged him repeatedly and across widening scope on that basis.

Recent work includes the Valar Atomics Ward 250 reactor, which reached criticality at the Utah San Rafael Energy Lab on June 18, 2026 under Executive Order 14301, the first DOE-authorized advanced reactor built and operated outside the national laboratory system. Jim was on site through the campaign and subsequently wrote the engineering design requirements for the associated 10 CFR Part 70 licensed fuel facility. Other recent work includes remanence prevention for a high-temperature superconducting magnet facility.

Elexana holds no PE stamp and does not seek one. The work is consultation grounded in physics and measurement; the client's engineer of record stamps the design. That separation keeps the analysis independent.

  • Member, IEEE New York Section

  • Member, IEEE Electromagnetic Compatibility Society

  • Member, National Fire Protection Association (NFPA)

  • Semiconductor Review, Electromagnetic Field Radiation Company of the Year, 2024

Anastasiia Rozhkova, PhD, EE
Electromagnetic Engineer

Dr. Rozhkova holds a PhD in Electrical and Computer Engineering from the University of Illinois Chicago, with doctoral research in electromagnetic scattering and antenna design. She has authored more than ten peer-reviewed publications and taught electromagnetics and EMC laboratory courses.

At Elexana she directs measurement methodology: instrument selection, calibration traceability, uncertainty budgets, and the measurement procedures documented in every report the firm issues. She also leads the firm's computational electromagnetic modeling in HFSS, COMSOL, and FEKO, which allows field behavior to be predicted at design stage rather than diagnosed after commissioning.

Full biography →

Mobile EMI-EMC Test Lab

Pre-Compliance Testing & Compliance-Failure Analysis

We travel to you, anywhere in the USA, the site where your equipment is malfunctioning, or you can ship it to us.

We provide direct EMI/EMC investigation services, pre-compliance testing, and client-focused collaborative solutions.

If equipment is failing due to EMI, we can determine whether the interference is local or global, or due to equipment susceptibility or immunity design deficiencies, using proprietary test setups and protocols.

This is why we are called on for the most complex EMI issues across America.

Once the root cause or causes are identified, we present your options for resolving the problem(s) causing interference.

Client Testimonials

"Jim was so great and helpful in finding the source of my EMI/RFI, helping with solutions, and also reducing the noise floor on the recordings drastically. An expert at what he does and a pleasure to be around. Highly recommend!!"

— Michael Baretz, Music Producer, Manhattan, New York

"Every now and then you come across someone who is on top of their game and it is also a pleasure to be in their company. Jim is that guy and as a result, we have stayed in touch personally and I will definitely bring him to all of my future projects."

— Shawn McKeon, Site-Safety Manager for Dunn Safety Co., Brooklyn, NY

ELEXANA Client Engagement Process