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Fast, Effective Contamination Monitoring

Mirion's personnel and object contamination monitors enhance safety and efficiency in nuclear facilities. These systems streamline the screening process, quickly detecting radioactive contamination on workers and objects — reducing delays at Radiologically Controlled Area (RCA) exits, and minimizing health risks while preventing contamination spread.
Nuclear power plant worker hard hat

Rapid Personnel Contamination Detection at Radiologically Controlled Area (RCA) Exit Points

Nuclear facilities require fast, reliable contamination detection at exit points to maintain controlled movement of personnel and prevent contamination spread — particularly during outages and high-traffic periods. As screening volumes increase, delays, inconsistent workflows, or missed detection events can disrupt operations and increase compliance risk.

A structured contamination monitoring approach supports fast, consistent screening at Radiologically Controlled Area (RCA) exitpoints without compromising accuracy or operational flow:

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High-Throughput Screening

Fast, efficient personnel monitoring to support high-volume RCA exit points

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Repeatable Workflows

Consistent screening procedures to reduce variability in execution

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Reliable Results

Accurate, audit-ready detection to support operational and compliance needs

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Supporting Systems for Radiologically Controlled Area (RCA) Exit Point Monitoring

Effective contamination monitoring at Radiologically Controlled Area (RCA) exitpoints requires coordinated solutions that support high-throughput screening, consistent workflows and reliable detection across operational conditions.

  • Support rapid personnel screening at RCA exit points with Sirius™ Contamination Monitors
  • Enable automated, repeatable whole-body monitoring with Argos™ Whole Body Monitors
  • Support portal-based monitoring for broader detection needs with the GEM™-5 Gamma Exit Monitor

Hand & Foot Contamination Monitoring

For personnel working in nuclear environments where full body monitors are not required, or as a precursor to a full body scan, Mirion hand and foot monitors provide thorough, reliable detection of external contamination on hands and feet. These monitors feature ergonomic design, outstanding detector sensitivity and intuitive user interfaces.

Key Benefits

  • Well-suited for mobile contamination checkpoints —quickly able to be moved and redeployed with minimal effort
  • Consistent monitoring performance unlike manual hand frisking

Compact Personnel Contamination Monitors

Maximize Space, Safety & Efficiency in Radiologically Controlled Areas (RCAs)

Mirion’s compact personnel contamination monitors deliver proven detection performance in space-efficient, portable designs — ideal for radiologically controlled areas where fast setup and minimal training are essential. These compact solutions combine reliable contamination detection with intuitive operation to maintain safety and compliance in even the most constrained environments.

Sirius™-5 Compact

For comprehensive hand, cuff, and foot monitoring in confined areas

  • Measures hands, cuffs, and feet simultaneously in a one-step operation
  • Choice of gas flow proportional or plastic scintillator detectors for alpha, beta, or gamma monitoring
  • Integrated casters and handle for easy movement and temporary setups
  • Rugged construction for high-traffic areas; designed for 24/7 uptime with minimal maintenance
  • IEC 61098 and ISO 11929:2019 compliant

Sirius™ Core

For fast deployment and minimal training needs

  • Two-step hand and foot contamination monitoring process
  • Ultra-compact, portable design for tight or temporary spaces
  • Optional alpha/beta frisker and rugged transport case

Shared Technology & Features

  • WebRemote® interface for fast setup and intuitive use
  • Built on Windows® 11 IoT platform for secure, modern operation
  • Shared components across Mirion contamination monitoring platforms to simplify servicing and reduce spare-part inventory
  • Seamless CeMoSys™ connectivity for centralized data access
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Does your site need exceptional radiological performance in a smaller, movable package?

Contact us to learn more about our compact personnel contamination monitoring solutions.

Sirius core

Sirius™ Core Two-Step Hand and Foot Contamination Monitor

Sirius Core builds on the trusted Sirius-5 platform to deliver reliable and thorough contamination detection for hands and feet, combining exceptional performance with a compact, mobile design optimized for space-limited nuclear environments.

Sirius Core builds on the trusted Sirius-5 platform to deliver reliable and thorough contamination detection for hands and feet, combining exceptional performance with a compact, mobile design optimized for space-limited nuclear environments.
Sirius 5 compact

Sirius™-5 Compact Hand, Cuff and Foot Contamination Monitors

The Sirius-5 Compact is an evolution of the well-proven Sirius-5 and delivers the same exceptional performance in a compact form.

The Sirius-5 Compact is an evolution of the well-proven Sirius-5 and delivers the same exceptional performance in a compact form.
Handfoot fibre rs753

HandFoot-Fibre Hand and Foot Clothing Monitor

The HandFoot-Fibre monitors are used for contamination screening of hands, feet and clothes for alpha, beta and gamma radiation.

The HandFoot-Fibre monitors are used for contamination screening of hands, feet and clothes for alpha, beta and gamma radiation.
Sirius5

Sirius™-5 Hand, Cuff and Foot Surface Contamination Monitor

The Mirion Sirius-5 provides thorough and reliable detection of external contamination on the hands and feet of personnel working in nuclear environments.

The Mirion Sirius-5 provides thorough and reliable detection of external contamination on the hands and feet of personnel working in nuclear environments.

Whole Body Contamination Monitoring

Whole body contamination monitors provide thorough, reliable detection of external contamination on personnel working in nuclear environments. These monitors are used to clear personnel from RCAs and boundary zones in nuclear power plants and other industries, including fuel cycle, national laboratories, and Department of Energy (DOE) facilities.

Key Benefits

  • Detection capabilities that exceed industry expectations
  • Durability, and ease of use and maintenance
Argos evo powered by lightlink

Argos™ Evo Whole Body Contamination Monitor

Argos™ Evo is a next generation whole body contamination monitor designed for fast and reliable personnel radiation contamination detection — helping organizations and facilities maintain the highest standards of safety and operational efficiency.

Argos™ Evo is a next generation whole body contamination monitor designed for fast and reliable personnel radiation contamination detection — helping organizations and facilities maintain the highest standards of safety and operational efficiency.
Argos ab 001

Argos™-AB Family of Gas Flow Whole Body Contamination Monitors

The Mirion Argos-AB family of Whole Body Surface Contamination Monitors provides the ultimate user-friendly operation, with thorough and reliable detection of external contamination on personnel working in nuclear environments.

The Mirion Argos-AB family of Whole Body Surface Contamination Monitors provides the ultimate user-friendly operation, with thorough and reliable detection of external contamination on personnel working in nuclear environments.
Argos tps pab 001

Argos™ PAB Whole Body Contamination Monitors

Argos TPS Family: Argos “PAB” Monitors for α /β Detection

Argos TPS Family: Argos “PAB” Monitors for α /β Detection
Argos 3 compact

Argos™-3 Compact Body Contamination Monitor

The Argos family of Whole Body Contamination Monitors provides the ultimate user-friendly operation, with thorough and reliable detection of external contamination on personnel working in nuclear environments.

The Argos family of Whole Body Contamination Monitors provides the ultimate user-friendly operation, with thorough and reliable detection of external contamination on personnel working in nuclear environments.
Argos 3 modular product

Argos™-3 Modular Body Contamination Monitor

The Argos-3 Modular monitor is an easily transportable body contamination monitor. Part of the Argos family of whole body contamination monitors, the system boasts proven user-friendly operation, with thorough and reliable detection of external contamination on personnel working in nuclear environments.

The Argos-3 Modular monitor is an easily transportable body contamination monitor. Part of the Argos family of whole body contamination monitors, the system boasts proven user-friendly operation, with thorough and reliable detection of external contamination on personnel working in nuclear environments.
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Argos™ PBG Whole Body Contamination Monitors

Argos TPS Family: Argos “PBG” Monitors for β /γ Detection

Argos TPS Family: Argos “PBG” Monitors for β /γ Detection

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Argos™ PB Whole Body Contamination for ß Detection

Argos TPS Family: Argos “PB” Monitors for β Detection

Argos TPS Family: Argos “PB” Monitors for β Detection
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TwoStep™-Exit II+ Whole Body Contamination Monitor

The industry's leading whole body monitor. Scans for radioactive contamination based on 100% gas-free Mirion fibre detectors.

The industry's leading whole body monitor. Scans for radioactive contamination based on 100% gas-free Mirion fibre detectors.
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AccuRate Anthropometric Correction

The AccuRate system enables the detection of lower levels of contamination, reduces false negatives and positives, and minimizes overall personnel monitoring effort.

The AccuRate system enables the detection of lower levels of contamination, reduces false negatives and positives, and minimizes overall personnel monitoring effort.

Tool & Object Contamination Monitoring

Mirion tool and object contamination monitors provide exceptional radiological performance–including fast response, quick contamination identification and spectroscopic capabilities.

Key Benefits

  • Broad range of options for various object sizes
  • Specialized operating modes
  • Many options available to suit unique needs
Cronos 4 and 11

Cronos®-4 and Cronos®-11 Gamma Object/Tool Monitors

Cronos-4 and Cronos-11 Gamma Object/Tool Monitors are extremely sensitive instruments used to detect gamma radiation in/on articles such as waste bags, tools, briefcases, hard hats, and other miscellaneous objects.

Cronos-4 and Cronos-11 Gamma Object/Tool Monitors are extremely sensitive instruments used to detect gamma radiation in/on articles such as waste bags, tools, briefcases, hard hats, and other miscellaneous objects.
Cronos 1pbg 001

Cronos®-1PBG Beta/Gamma Object/Tool Monitor

The Cronos-1PBG Beta/Gamma Object/Tool Monitor is an extremely sensitive instrument to detect beta and gamma emitting radioactive contamination on small objects such as notebooks, keys, tools, hard hats, and other items which can be placed in the counting chamber.

The Cronos-1PBG Beta/Gamma Object/Tool Monitor is an extremely sensitive instrument to detect beta and gamma emitting radioactive contamination on small objects such as notebooks, keys, tools, hard hats, and other items which can be placed in the counting chamber.
Cronos 1 monitor

Cronos®-1 Gamma Object/Tool Monitor

Cronos-1 Gamma Object/Tool Monitor is an extremely sensitive instrument used to detect radioactivity on small articles such as notebooks, keys, tools, hard hats, and other miscellaneous objects.

Cronos-1 Gamma Object/Tool Monitor is an extremely sensitive instrument used to detect radioactivity on small articles such as notebooks, keys, tools, hard hats, and other miscellaneous objects.
Rtm662 300

RTM662-300 Clearance Monitor (CGO-Smart™ LNC)

The Mirion RTM662-300 Gamma Clearance Monitor is designed for Clearance measurements of average sized items like waste bags, toolboxes or 100 liters drums.

The Mirion RTM662-300 Gamma Clearance Monitor is designed for Clearance measurements of average sized items like waste bags, toolboxes or 100 liters drums.

Whole Body Gamma Portals

Mirion Whole Body Gamma Portals enable high throughput for detection of gamma emitting surface contamination and are ideal for identifying hot particles or spread contamination.

Key Benefits

  • Combine flexible modes of operations
  • Exceed industry standards of <1% of an ALI sensitivity for passive monitoring for intakes of radioactive material
  • Feature different shielding options
  • Spectroscopic capability options for enhanced background rejection

Resources

Contamination Monitors - Alarm Settings & Strategies External

1 hour, 24 minutes

Mirion Technologies

Contamination Monitor Configuration Guide

Mirion Technologies

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