Radiation Monitoring Devices, Inc. (RMD)


Radiation Monitoring Devices, Inc. (RMD), a subsidiary of Dynasil Corporation, is a global leader in radiation detection, high-speed imaging, nuclear instrumentation, and non-destructive test equipment. Since its founding in 1974, RMD has been dedicated to world-class research and the development of industry-leading commercial products. With a team of over 60 scientists and engineers, RMD is at the forefront of materials research and development, holding more than 72 granted U.S. patents. Its technologies are widely used in fields ranging from space exploration and particle physics to nuclear security, clinical diagnostics, and environmental research. RMD collaborates with U.S. government agencies such as DHS, DoE, DTRA, DoD, NIH, and NASA, and has received multiple awards for its contributions to innovation and national security.

Radiation Monitoring Devices, Inc. (RMD)

44 Hunt Street, Watertown, MA 02472, United States


What We Do

A dual-mode gamma-neutron scintillator (Cs2LiYCl6:Ce) that serves as a replacement for both medium resolution gamma-ray detectors and Helium-3 proportional counter tubes for neutron detection. Used in handheld instruments like PRDs, SPRDs, and RIIDs.

A high-resolution, high-light yield, dual-mode scintillator (Cs2LiLa(Br,Cl)6:Ce) for simultaneous gamma-ray and neutron detection, offering excellent pulse shape discrimination and energy resolution.

Scintillator films based on 6LiI:Eu, designed for high spatial neutron imaging resolution applications.

Advanced, high frame rate, large-area, modular X-ray detector for high-speed medical X-ray CT and time-resolved X-ray analysis.

Large-area scintillation films and advanced, high frame rate, modular X-ray cameras for high-speed, high-resolution, high-contrast imaging of dynamic phenomena.

Novel organic scintillator material capable of gamma-ray spectroscopy, efficient fast neutron detection, and excellent pulse shape discrimination.

A field-deployable device for first responders to quickly assess in real-time and with high confidence the threat level posed by a suspected nuclear weapon.

Small and lightweight CLYC-based neutron detector designed as a direct drop-in replacement for Helium-3 tubes, offering superior neutron and gamma detection and discrimination.

Thallium-doped, high purity, low-background sodium iodide scintillators for dark matter and high energy physics studies, offering ultra-low radioactivity and high sensitivity.

A new material for gamma-ray detection with high light yield, fast response, and very low intrinsic background noise, used in nuclear nonproliferation, medical imaging, and oil well logging.

Large area APDs that improve signal to noise ratio for hybrid PET/MRI systems and LIDAR applications, featuring high quantum detection efficiency and wide spectral response.

A portable X-ray fluorescence system for lead paint analysis, recognized as one of the most successful lead testing instruments developed.

Ceramic lutetium oxide doped with Yb3+ for PET imaging, high energy physics, and radiography, offering high density, fast decay, and high light yield.

RMD partners with U.S. government, corporations, and research institutions to solve complex problems in radiation detection, imaging, nuclear instrumentation, nondestructive testing, and high-speed imaging. They offer extensive scientific and cross-disciplinary expertise, supporting both technology advancement and commercialization.



Key People

Vice President of Research & Development

Vice President of Program Management

Vice President of Finance


News & Updates

RMD won the 2021 R&D 100 Award for its Multiplicity Counter for Thermal and Fast Neutrons (MC-TF), a field-deployable device for nuclear threat assessment.

Dr. Kanai Shah, President of RMD, received the prestigious 2020 RTSD Scientist Award by the Room Temperature Semiconductor Detectors conference.

RMD was selected as a winner for the 2019 R&D 100 Awards, recognizing excellence in practical applications of science.

RMD received the Small Business Achievement Award from the Department of Homeland Security for its contributions to national security.

RMD received two Tibbetts Awards in recognition of its outstanding contributions to the SBIR program.

RMD's high-speed X-ray imaging camera was used by NASA's Jet Propulsion Laboratory to troubleshoot the Mars InSight Lander's HP3 instrument, capturing high-resolution X-ray movies at over 100,000 frames per second.

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