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  Contamination Monitoring & Clearance
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  Scan for the presence of radioactive contamination on people, objects or vehicles.
  
  Product Application
  - Whole Body Contamination Monitoring
    
    Systems designed to detect radioactive contamination on a worker's body prior to entering or exiting a radiologically controlled area.
  - Vehicle Monitoring
    
    Systems designed to detect the presence of radioactive material within a vehicle passing a checkpoint.
  - Tool & Object Monitoring
    
    Monitors designed to quickly screen tools, clothing and other objects for radioactive contamination.
  - Supervision System
    
    Central monitoring system software for easy supervision.
  - Large Item & Clearance Monitoring
    
    Monitors designed to screen large objects and waste for radioactive contamination.
  - Hand Foot Monitoring
    
    Monitors designed to detect radioactive contamination on a worker's hand or foot.
  - Gamma Portal Monitoring
    
    Monitors designed to detect gamma radiation presence on people.
  - Conveyor Monitoring
    
    Conveyors designed to screen small or long items and clothing item.
  - In-Vivo Counting
    
    Systems designed to provide whole body and lung counting capabilities.
- Criticality Accident Alarm Systems ›
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  Criticality Accident Alarm Systems
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  A Criticality Accident Alarm System (CAAS) is an alarm system for prompt evacuation of personnel in the event of a criticality event.
- Decontamination & Decommissioning ›
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  Decontamination & Decommissioning
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  Decontamination and Decommissioning (D&D) is a major effort worldwide, covering everything from early R&D facilities to first generation nuclear power plants, weapons and fuel fabrication facilities and research reactors.
  
  Product Application
  - Gamma Waste Assay Systems
    
    Gamma measurement systems for the measurement of non-packaged and packaged waste as well as containers of different sizes.
  - Decommissioning and Dismantling Cameras
    
    Monitor all aspects of the D&D cycle to improve safety and efficiency in radioactive/contaminated environments.
  - Decommissioning and Dismantling (Video Processing)
    
    Video processing solutions to overcome image quality challenges during the decommissioning and dismantling of a nuclear facility.
  - Supervisory Systems
    
    System display and control software for environmental and boundary monitoring applications designed in accordance with stringent nuclear industry standards.
  - Environmental & Perimeter Monitoring
    
    Environmental and perimeter monitoring solutions for both remote measurement and sample assessment.
  - Alpha/Beta Counting
    
    Automatic and manually-controlled low background alpha/beta counting systems.
  Services
  - Measurement & Expertise
    
    Partnering with you for more efficient and cost-effective nuclear measurements.
  - Customer Training Programs
    
    Our-house, your house, or online, our experts are ready to assist in your learning and knowledge needs.
- Dosimetry ›
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  Dosimetry
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  Dosimeters track the radiation exposure of the wearer, to provide awareness and protection from the effects of ionizing radiation. Mirion offers a comprehensive range of solutions and services for monitoring personal radiation exposure.
  
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  - Instadose Personal Radiation Monitoring & Reporting
    
    Pushing the boundaries of personal dosimetry with Instadose+™ dosimeters.
  - Electronic Dosimetry Systems
    
    Electronic dosimetry systems track the radiation exposure of the wearer.
  - Electronic Dosimetry Readers
    
    Compatible electronic dosimeter readers for retrieving the individual dose.
  - Electronic Dosimetry Software
    
    Health physics dose management software.
  - Electronic Dosimetry Accessories
    
    Computerized irradiator for dosimeter source checking and simulation devices.
  - Telemetry
    
    Monitor your radiation safety devices wirelessly with the WRM2™ system and software.
  - Passive Dosimetry Solutions
    
    Passive dosimeters measure the radiation exposure of the wearer over time.
  - X-Ray Badges and Rings
    
    Radiation badge services and specialty dosimeters for a variety of applications.
  Services
  - Calibration Services
    
    Calibrations performed by qualified experts on each type of Mirion equipment.
  - Product Support and Repairs
    
    Technical support and repairs for your Mirion products.
  - Instadose Dosimetry Services (X-ray badges)
    
    Simplified dose readings via iPhone, iPad, or PC at any time with the Instadose^®+ dosimeter.
- Environmental Monitoring ›
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  Environmental Monitoring
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  Monitoring solutions for the environment, as well as for remote measurement at the boundaries of facilities.
  
  Product Application
  - Supervisory Systems
    
    System display and control software for environmental and boundary monitoring applications designed in accordance with stringent nuclear industry standards.
  - Environmental & Perimeter Monitoring
    
    Environmental and perimeter monitoring solutions for both remote measurement and sample assessment.
  - Unmanned Vehicles
    
    Unmanned systems that are designed to enter areas where risk to personnel exists to provide life time radiological data.
- Cameras for Extreme Environments ›
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  Cameras for Extreme Environments
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  A range of CCTV and imaging systems for the inspection, surveillance and monitoring of numerous applications.
  
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  - High Temperature Cameras
    
    Our systems combine temperature measurement, real-time video, and image processing into an enhanced video experience showing measurement information overlaid onto a live video image.
  - Radiation Tolerant Cameras
    
    When your environment demands radiation hardened CCTV for monitoring, Mirion can help provide long-term solutions.
  - Video Processing and Accessories
    
    Enhancements for Critical Imaging Processing.
- Instrumentation & Control ›
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  Instrumentation & Control
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  Safety and instrumentation channels for nuclear power plants.
  
  Product Application
  - Reactor Water Level Measurement
    
    Cost-effective, digital ultrasonic measurement system to determine reactor water levels for optimization.
  - Hydrogen Measurement
    
    Multi-point hydrogen and oxygen measurement systems for inside the reactor building.
  - Ex-Core (Reactor Safety Systems)
    
    Out-of-core sensors for all types of reactors.
  - Boron Meters
    
    Boron meters continuously measure the boron concentration in water circulating in process of light water nuclear power plants.
  - In-Core
    
    In-core detectors used in the instrumentation channels of nuclear power plants.
  - Nuclear Containment Seals
    
    Modular in design and manufactured to operate reliably over the sixty year design life of a reactor.
- Military (CBRN) & Homeland Security ›
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  Military (CBRN) & Homeland Security
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  World class radiation detection and measurement instrumentation meeting the exact standards of military and homeland security stakeholders. These durable and highly sensitive devices are built for harsh battlefield environments, infrastructure protection, search and security applications.
  
  Product Application
  - Military
    
    Military and CBRNE applications have evolved to create a need for enhanced radiological detection equipment used by armed forces. Based on long-term experience and cooperation with customers, Mirion constantly improves and extends its range of military products, providing new solutions and innovative technologies against new threats to protect global defense forces.
  - Homeland Security and Civil Defense
    
    The threat of terrorism emphasizes the need for efficient and reliable monitoring of infrastructures and events to mitigate radiological risks. Emergency response teams must be ready to assess these risks through a high level of situational awareness to protect people, property and the environment.
- Portable Radiation Measurement ›
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  Portable Radiation Measurement
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  Radiation meters to search for, measure, and monitor radiation.
  
  Product Application
  - Portable Survey Meters
    
    Basic and multi-purpose radiation survey meters.
  - Probes
    
    Attachable probes to detect alpha, beta, gamma and neutron radiations.
  - Gamma Imaging Systems
    
    Ultra portable gamma-ray imaging system.
  - Surface Contamination Monitors
    
    Handheld contamination probes for surface monitoring.
  - Other Instruments
    
    Dose rate meter, beta dual detector probe and telescopic radiation survey meter.
  - Portable Radiation Measurement Software
    
    Software to monitor the portable survey meters.
  - Portable Radiation Measurement Accessories
    
    Accessories for the portable survey meters.
  - Area Radiation Monitoring
    
    Wide ranging detection.
  - Geiger-Mueller Tubes
    
    Replacement Geiger-Mueller tubes.
- Radiation Monitoring Systems ›
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  Radiation Monitoring Systems
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  Monitoring of barriers and effluent releases, radiation protection of workers, operational process monitoring and post-accident operations.
  
  Product Application
  - Area Monitoring
    
    Monitors to measure site-specific levels of alpha, beta, gamma, or neutron radiation.
  - Effluent Release Monitoring
    
    Modularized and reliable effluent monitors.
  - Operational Process Monitoring
    
    Instruments to monitor radioactivity in pipes, ducts, filters, tanks, or in general areas.
  - Containment Systems
    
    Cost-effective steam generator leak monitors.
  - Post-Accident Facility Management
    
    Equipment developed and qualified for post-accident operations in the nuclear facilities.
  - Customized Solutions
    
    Wide range of high-qualified, customized solutions for worldwide nuclear applications as radiation monitoring and neutron flux measurements.
- Spectroscopy & Counting Labs ›
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  Spectroscopy & Counting Labs
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  Spectroscopic and radiochemistry solutions for laboratory, field, and personnel applications with experts located throughout the world to provide local support and address any measurement needs.
  
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  - Radiological Counting Labs
    
    A full range of products, solutions and services to assist with the important applications of the radiochemistry laboratory.
  - Solutions for Industrial Applications & Physics research
    
    Specialized detectors and instrumentation for cutting-edge materials analysis, physics, space studies and other challenging applications.
  - In-Vivo Counting
    
    Systems designed to provide whole body and lung counting capabilities.
  - In-Situ Measurements
    
    In Situ tools for imaging and measurement of contaminated materials and areas, both in place as well as after removal from facilities.
- Waste Management ›
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  Waste Management
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  Equipment, systems, tools and expertise to solve your most demanding nuclear measurement challenges.
  
  Product Application
  - Combined Neutron - Gamma Systems
    
    Mirion offers combined gamma/neutron assay, systems to measure containers ranging from non-packaged waste to vehicles.
  - Measurement & Expertise Services
    
    Our experts provide services to measure and analyze nuclear materials. Our team ensures the quality of results, offer innovative solutions to meet your needs and the safety of your site.
  - NDA Systems
    
    Our Non Destructive Assay systems measure the radioactivity content of containers of radioactive waste or fuels, or contaminated items. Measurements are conducted in a non-intrusive manner whereby the radiation emissions are measured without requiring the container to be opened or the item to be physically altered.
  Services
  - Measurement & Expertise
    
    Partnering with you for more efficient and cost-effective nuclear measurements.
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About Mirion
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Get To Know Our Divisions
- Characterization
  
  Dedicated to supporting Decontamination and Decommissioning efforts worldwide, the Characterization Division combines application know-how with a broad range of Mirion products and systems to deliver solutions that help you address any challenges faced during all stages of the D&D project life cycle. The ChD Division also features high temperature and radiation tolerant cameras for a wide range of imaging applications.
- Health Physics
  
  Fixed and mobile systems focused on protecting individuals from hazardous radiation exposure, handheld instrumentation, electronic and passive dosimetry for radiation measurement and monitoring.
- Sensing Systems
  
  Electrical Penetrations, In-core, and Ex-core Detectors used in the instrumentation channels of nuclear power plants for safety and control processes
- Dosimetry Services
  
  Services providing official dose of record reports for workers exposed to radiation. Featuring the Instadose+™ dosimeter, with SmartMonitoring™ technology - a digital radiation monitoring device that is transforming how staff are monitored and safeguarded from radiation over-exposure.
- Radiation Monitoring Systems
  
  MGP Instruments™, Canberra™ and MGPI H&B™ state-of-the-art radiation monitoring and neutron flux systems for nuclear power plants, nuclear fuel cycle industry, nuclear research centers/accelerators, nuclear test reactors, medical isotope production facilities and nuclear military facilities.
- Spectroscopy
  
  Radiation measurement solutions for laboratory, in vivo, in situ applications and local experts available around the world to provide consulting services and address any nuclear measurement needs.
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  At Mirion we are passionate about what we do, from customer services to creating the most reliable radiation safety equipment in the world, every one of us is responsible for the continued success of Mirion.
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Products and Applications
Dosimetry
Electronic Dosimetry Accessories
TWR Source Two Way Ranging Live Source of Radiation

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TWR Source

Two Way Ranging Live Source of Radiation

Provided by: The Health Physics Divison

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TWR Source

Two Way Ranging Live Source of Radiation

Provided by: The Health Physics Division

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A simulated point source of gamma radiation that is omnidirectional.

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TWR Source

Two Way Ranging Live Source of Radiation

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Data Sheet

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Features

Simulated point source of radiation – omnidirectional
Automatic detection of source by instrument
Dynamic response of simulator instrument to source based on 1/R²
Quick deployment in indoor or outdoor setting
100’ range of detection
Configurable dose rate at 1 foot from source

Description

The TWR (Two Way Ranging) Source provides a simulated point source of gamma radiation that is omnidirectional. The source is configured by setting the exposure rate at 1 Ft (30 cm) up to 99,999 R/hr. The TWR Source is detectable by any SIM-Teq™ instrument (may require Rad Tag). The TWR Source has a small form factor and internal rechargeable battery that allows easy deployment.

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TWR User Manual

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Mirion Technologies (MGPI), Inc.

5000 Highlands Parkway Suite 150

Smyrna, GA 30082

Sales Phone: 770.432.2744

Support Phone: 770.432.2744

Email: smy-sales@mirion.com

Support and Sales for Health Physics and Radiation Monitoring Systems products in the Americas.

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Mirion Technologies (MGPI) SAS

174 Route d'Eyguières

FR-13113 Lamanon, France

Sales Phone: +33 4 90 59 59 59

Support Phone: +33 4 90 59 60 60

Sales and Service for Health Physics and Radiation Monitoring Systems in Asia, Europe, the Middle East, Africa and Pacific

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