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This section provides an overview for radiation monitors as well as their applications and principles. Also, please take a look at the list of 16 radiation monitor manufacturers and their company rankings. Here are the top-ranked radiation monitor companies as of January, 2025: 1.TG Technical Services, 2.General Atomics, 3.S.E. International, Inc.
Table of Contents
A radiation monitor is an instrument that measures the intensity or quantity of radiation.
There are five main types of radiation, each measured according to a different principle. Some measure the amount of radiation in a space, while others measure the cumulative amount of radiation received by an individual.
Radiation is also present in the everyday environment in which we live, although it has a scary image due to atomic bombs, nuclear weapons, and nuclear power plant accidents. In radiation monitoring, the instrument to be used depends on the nature of the radiation to be measured.
In addition, the radiation monitor that can be used depends on whether the radiation level is high or low, or on the type of radiation (alpha, gamma, beta, or X-rays).
Scintillation radiation monitors are used to measure the radiation dose rate in the general environment. Since the measured value varies with the distance from the source of contamination, it can also be used to determine the location of the contamination source.
The radiation dose rate in the air is the amount of radiation in the air per hour. Radiation in the air is radiation that travels through space and can come from outer space or from natural sources.
The unit of radiation dose rate is hGy/h (nanogray per hour), where Gy (gray) is the amount of radiation absorbed by a material, including the human body, and is also called absorbed dose.
GM tube radiation monitors are mainly used to measure beta radiation and the degree of body surface contamination. They can also be used to measure gamma and X-rays, as well as air radiation dose rate, but their accuracy is inferior to that of the scintillation type.
It is also used to measure the presence of radioactive materials on the clothing and body surfaces of workers, etc., and to analyze nuclides in research experiments.
Ionization chamber radiation monitors are used to measure the radiation dose rate in the air. However, since the ionization chamber type can only detect strong radiation, these radiation monitors are used in radiation-intensive environments, such as in the manufacture of X-ray equipment such as CT and X-ray machines, in the medical field where such equipment is used, and in nuclear power plants.
Personal dosimeters measure the cumulative amount of radiation exposure of the wearer over a certain period of time. Personal dosimeters are used in facilities that handle radioactive materials.
Areas with a high potential for radiation exposure, such as nuclear power plants, are designated as controlled areas, and it is required by law that people who enter these areas wear personal dosimeters to measure their radiation exposure during the time they are there.
Radiation interacts with matter as it passes through it. The principle of radiation monitors is based on the interaction between radiation and matter.
GM-tube radiation monitors and ionization chamber radiation monitors use the ionizing action between radiation and gas. The GM-tube and ionization chamber radiation monitors calculate the radiation dose by converting the electric current generated by the ionization into an electrical signal.
Scintillation radiation monitors use the excitation action between materials. Excitation is the process by which radiation imparts energy to the electrons of an atomic nucleus, causing them to be repelled into an outer orbital. In the excitation process, the energy of the nucleus is emitted as light when it returns to the stable ground state from the high-energy excited state in the activated state. The weak light emitted by the scintillator in this process is amplified by a photomultiplier tube and converted into an electrical signal to measure radiation.
Scintillators are materials that emit light in response to X-rays and gamma rays, and are commonly used to measure radiation, such as sodium iodide (Nal) and cesium iodide (Csl). The principle of fluorescence is also used in personal dosimeters, which are called individual photon stimulated luminescence dosimeters, fluorescent glass dosimeters, or electronic dosimeters.
In the news about radiation, you may hear unfamiliar units of measurement used. The main units are Bq (Becquerel) and Sv (Sievert).
The becquerel is the number of atomic nuclei that decay in one second and represents the ability of a radioactive material to produce radiation. The two units are used to express the radiation on the side of the generator and the radiation on the side of the receiver.
*Including some distributors, etc.
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TG Technical Services, established in 2007 in Lee’s Summit, Missouri, USA, is a manufacturer of gas monitoring devices for industrial uses. The company offers various gas monitoring devices designed to ensure workplace safety by detecting and monitoring the presence of hazardous gases. These devices are used in industries such as manufacturing, oil and gas, chemicals, mining, and more. The benefits cover early detection of gas leaks, real-time monitoring, compliance with safety regulations, and the prevention of potential accidents or health hazards. These devices are essential for maintaining a safe work environment, protecting personnel, and preventing damage to equipment and facilities.
HI-Q Environmental Products Company was founded in 1973 in San Diego, California, USA, as a manufacturer of air sampling and radiation monitoring equipment, systems, and services. The company's product list consists of dual-range air flow calibrators, calibrator adapter fittings, and air flow measuring units, among others. The products serve various industries as essential components and calibration solutions, ensuring equipment reliability, supporting environmental monitoring, and maintaining accurate measurements in HVAC and industrial processes. The company serves various industries, including biomedical, chemical, and pharmaceuticals, energy/utilities, fire and police, and nuclear.
Mitsubishi Electric Power Products, Inc., established in 1985, with its headquarters located in Warrendale, Pennsylvania, USA, is a manufacturer of electrical and electronic equipment for power generation, transmission, and distribution. The company offers a comprehensive range of products, including transformers, circuit breakers, gas insulated switchgear, and power monitoring systems. These solutions assist in optimal energy transmission, improved grid performance, and enhanced power system management. The benefits include increased energy efficiency, reduced downtime, enhanced grid stability, and environmental sustainability. These products find application in power utilities, industrial facilities, renewable energy projects, and infrastructure development, supporting a resilient and efficient electrical power ecosystem.
Ludlum Measurements, Inc., founded in Sweetwater, TX in 1962 is a manufacturer of radiation detection instruments and technologies. The company's product portfolio includes Portable Survey Meters, Personal Radiation Meters, Benchtop Meters, Scalers / Counters and Pulsers. Their products are used are in applications such as routine personnel and material monitoring, border security, and emergency response situations. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Construction and Building. The company also offers services including service repair and calibration, Training Courses, and a full list of product videos.
S.E. International, Inc., founded in 1979 as Solar Electronics, is an manufacturer based in Summertown, Tennessee, specializing in providing radiation detection equipment. The company’s featured products are offered under the Radiation Alert brand, encompassing analog & digital radiation detectors, radiation area monitors, dosimetry solutions, radiation response kits, radiation spectrum analyzers, as well as related accessories and software. These products find application in various sectors, particularly within environments where radioactive presence is a concern, which include healthcare, government & security, laboratories & educational institutions, nuclear, and public safety. The company also provides a range of services, including calibration and repair.
General Atomics, established in 1955, and headquartered in San Diego, California, is a manufacturer and supplier of advanced technology systems for various industries such as aerospace, defense, energy, and scientific research. Notable offerings include unmanned aerial vehicles (UAVs) for military and commercial applications, electromagnetic systems for fusion energy research, and nuclear power plant components. They also offer remotely operated surveillance aircraft systems and hold ISO 9001:2015 certification. General Atomics is also involved in research and development activities in fusion energy.
Based in Bayville, NY, SAE Manufacturing Specialties Corp. is an ISO-certified supplier and manufacturer of industrial equipment, chemicals, components, ordinance, electronics, and systems for industries ranging from aerospace to high tech to law enforcement. Examples of product offerings include raw materials, chemicals, and lubricants for industrial purposes to finished products such as security helmets for law enforcement, and military ordnances. SAE also provides research and development as well as technical support for other companies in similar industries.
Mirion Technologies, Inc., established in 2005 and headquartered in Atlanta, Georgia, USA, is a global service provider in radiation safety, science, and medicine. With a rich history dating back to its origins between 1950 and 2004, Mirion's journey has included expansion into healthcare and ongoing advancements in radiation safety technologies. The company’s products and services are aimed at protecting people and the planet from the harmful effects of ionizing radiation. With a diverse portfolio of products and services, Mirion serves across various end markets, from radiation detection and measurement to diagnostic imaging and radiation therapy and more.
Southern Scientific, established in 1983 in West Sussex, UK, is a manufacturer of radiation detection, identification, and measurement equipment. The ISO 9001 certified company manufactures various products, including radiation detectors, spectrometers, dose rate monitors, and radiation imaging systems. These are crucial for nuclear and radiation safety, medical imaging, environmental monitoring, and homeland security applications. The benefits include accurate radiation measurement, quick identification of radioactive sources, enhanced safety in radiation environments, and compliance with regulatory standards. These products find application in nuclear power plants, healthcare facilities, emergency response teams, border security, and research institutions, supporting safer and secure operations in various industries.
Bertin Technologies, established in 1956 in Montigny-le-Bretonneux, France, is a manufacturer of sampling systems, and equipment for Nuclear instrumentation and CBRN threat identification. The company specializes in providing unique solutions for complex engineering challenges in various industries, including defense, life sciences, pharmaceutical, nuclear, and environmental monitoring. They offer a comprehensive line of products, including advanced instrumentation, intelligent software, and integrated systems. These solutions result in improved efficiency, safety, and performance in areas such as radiation monitoring, sample preparation, and defense technologies. The benefits include accurate data collection, real-time analysis, reduced environmental impact, and enhanced security.
Quarta-Rad is a technological company founded in 2005 and based in Silicon Valley, the company is a manufacturer of innovative software solutions that addresses specific challenges or provide unique functionalities for the healthcare industry. The company's products include cutting-edge radiology imaging software, which provides advanced tools for medical professionals to analyze and interpret medical images with accuracy and efficiency. These softwares are used in utilizing machine learning algorithms and image processing techniques to enhance diagnostic capabilities and improve patient outcomes. The company also offers customer services such as technical support, customization and integration to meet the customer’s needs.
HORIBA RADIO LABORATORY was established in Japan in 1945 and has spent the last three-quarters of a century growing as an R&D company and engaged in international operations. HORIBA Scientific offers 200 years of experience developing high-performance scientific instruments and analytical solutions. The HORIBA Group of worldwide companies provides an extensive array of instruments and systems for applications ranging from automotive R&D, process and environmental monitoring, in-vitro medical diagnostics, semiconductor manufacturing, and metrology to a broad range of scientific R&D and QC measurements. Operating in Asia, Europe, and North and South America, HORIBA scientific develops solutions that go beyond just products.
Fluke Biomedical, established in 2002, is headquartered in Ohio, USA, and is a manufacturer of comprehensive products for biomedical and radiation safety testing and monitoring equipment. The company offers a diverse range of products, including electrical safety analyzers, patient simulators, radiation measurement instruments, dosimetry systems, and biomedical testing software. The benefits of the products include accurate testing, increased patient safety, compliance with regulatory standards, and improved quality assurance in healthcare facilities. These solutions find application in medical device manufacturing, healthcare organizations, research facilities, and regulatory agencies, ensuring the optimal standards of safety and performance in medical equipment and radiation monitoring.
Golden Engineering, Inc., established in Centerville, IN in 1973 is a manufacturer of battery powered portable X-ray generators used for security and light industrial applications. The company's product range includes Compact and mobile X-ray units for security inspections and light industrial testing and tools and attachments to enhance the versatility and functionality of X-ray generators. The company serves markets such as Security and Defense, Aviation and Transportation, Industrial Manufacturing and Oil and Gas.
PCE Instruments UK Ltd., started in 199 and headquartered in Manchester, UK, is a manufacturer and supplier of test instruments, equipment, and tools for weighing, measuring, and control systems. The company offers more than 500 test equipment, including analyzers, inspection cameras, meters, detectors, and sensors, with applications in various fields like data acquisition, electrical engineering, environmental science, building inspection, and food processing. Its manufacturing and development division is ISO 9001 certified, all its test instruments, equipment, and tools are factory calibrated, and the company also provides services for custom test instrument design, installation, and maintenance.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | TG Technical Services |
11.1%
|
| 2 | General Atomics |
8.8%
|
| 3 | S.E. International, Inc |
7.8%
|
| 4 | SAPHYMO |
7.4%
|
| 5 | HI-Q Environmental Products Company |
7.0%
|
| 6 | SAE Manufacturing Specialties Corp |
6.8%
|
| 7 | Ludlum Measurements, Inc. |
6.6%
|
| 8 | QUARTA-RAD |
6.4%
|
| 9 | HORIBA |
6.4%
|
| 10 | Mitsubishi Electric Power Products, Inc |
5.9%
|
Derivation Method
The ranking is calculated based on the click share within the radiation monitor page as of January 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
8 | 61.5% |
|
United Kingdom
|
2 | 15.4% |
|
France
|
1 | 7.7% |
|
Russia
|
1 | 7.7% |
|
Japan
|
1 | 7.7% |
59 products found
59 products
Japan Shielding Giken Co., Ltd.
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Very Fast Response
Rolf -The standard radiation meter-Simplify radiation measurement work.That's the Rolf series. ■Points -The program supports two measurement metho...
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■Track scale option Radioactive materials in cargo can be detected by installing a large radiation detector at the entrance of the truck scale. We ...
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Piranha measures the main measurement items (tube voltage, dose, dose rate, irradiation time, half-value layer, total filtration, tube voltage wave...
Japan Shielding Giken Co., Ltd.
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I can't stop now. The era of air dose rate measurement has arrived. Hotspot Finder is an automatic air dose rate recording system linked to GPS fun...
ANSeeN Co., Ltd.
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This is a waveform analysis device for radiation signals. It provides analysis functions for wave height values and rise/decay times, neutron-gam...
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Mako (Mako) has the measurement items (tube voltage, dose, dose rate, irradiation time, half value layer, total filtration, tube voltage waveform, ...
Laboratory Equipment Corporation Co., Ltd.
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■Summary The main difference between this product MCA3200, MCA2200, MCA2318, and older products (2100C/MCA, MCA600, etc.) is that the AD converter ...
Laboratory Equipment Corporation Co., Ltd.
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Japan Shielding Giken Co., Ltd.
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CT Dose Profiler proposes a new method for CT dosimetry. CTDI has traditionally been measured using a 100mm long pencil-type ion chamber, but CT te...
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Cobia Flex uses the main measurement items (tube voltage, dose, dose rate, irradiation time, half-value layer, total filtration, tube This is a mul...
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Cobia Smart is a test tool that allows you to quickly measure X-ray output in just 3 steps. Measurement results are displayed on a large, easy-to-r...
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The RTI Scatter Probe is a rugged, flat, solid-state detector for leaky and scattered X-ray measurements. The unique design with two separate detec...
Laboratory Equipment Corporation Co., Ltd.
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■Summary ADC2318 manufactured by SMTX is an ADC module exclusively for MCA. It consists of a peak detection circuit for radiation measurement and a...
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■Features ・Ideal for dose monitoring in cardiovascular treatment (IVR) ・Display dose and dose rate in real time ・Direct reading is possible with...
Chiyoda Technol Co., Ltd.
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5.0 Company Review
■Ideal measurement tool for basic radiation education Alpha-chan is a measuring device for α-rays, Beta-chan is a measuring device for β-rays. This...
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Yagyu Shokai Co., Ltd.
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■Features - Equipped with a high-performance scintillator type sensor, enabling higher-grade measurements. - Quick measurements are possible just b...
Yagyu Shokai Co., Ltd.
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■Features - When radiation (gamma rays) is detected, a buzzer and detection mark will notify you. - A buzzer will notify you when the dose is high...
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As a reference class electrometer that exceeds the performance requirements of IEC standards, its unrivaled stability, low noise and wide measuring...
Bruker Corporation
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■Features Bruker's radiation survey meter SVGps is a high-precision handheld system that combines a Geiger-Müller counter and a semiconductor detec...
Oki Riko Jizai Co., Ltd.
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■Summary This is a handy measuring device that allows you to easily and accurately measure weak gamma rays without any specialized knowledge. ■Fea...
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Berthold Japan Co., Ltd.
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The LB124SCINT series can distinguish between α and βγ rays and measure them at the same time. It is compact and lightweight, making it easy to han...
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Berthold Japan Co., Ltd.
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This is a space-saving hand and foot cloth monitor designed with the installation area in mind. Hand detectors can be used as clothing detectors, r...
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Body Scan is used at the exit of operational control areas, such as nuclear facilities, where limits for human surface contamination need to be mon...
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Berthold Japan Co., Ltd.
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Berthold Japan Co., Ltd.
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Berthold Japan Co., Ltd.
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The B2046 and LB2046-130 were developed for simultaneous measurement of alpha and beta radiation in various measurement samples such as wipe tests ...
Berthold Japan Co., Ltd.
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Berthold Japan Co., Ltd.
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A lightweight, easy-to-operate dose rate monitor with an integrated measuring device and detector. A proportional counter approved according to the...
