air radioactivity monitoring Articles

  • Monitoring radioactivity in nuclear and radiological emergency in a European perspective: aims and means

    After the Chernobyl nuclear power plant accident, European countries have further enhanced their capacity and infrastructure for monitoring radioactivity in their environment. This paper gives a summary of the most commonly used techniques relevant to routine and nuclear and/or radiological emergency conditions, followed by a discussion of the various network types (routine, emergency ...


    By Inderscience Publishers

  • Survey of natural and artificial radioactivity in Tunisian soils

    A study of the natural radioactivity and artificial radioactivity of soils due to gamma ray emitters was performed in Tunisia, as part of the national programme for environment surveillance. Seventeen sites were studied. The determination of radionuclide specific concentrations in the soil samples (0–5 cm) by gamma ray spectrometry showed the following ranges: 40K (93–319 Bq/kg), 226Ra (5–50 ...


    By Inderscience Publishers

  • Recent Improvements in Air Flow Calibration Reference Instruments

    A key element in radiation protection programs at commercial nuclear power plants, nuclear research facilities, fuel fabrication plants and regulatory agency oversight programs of licensees is management's ability to validate the accuracy of the many air sampling instruments utilized in the facility's radiation protection air monitoring programs. The volume of air sampled in each sample ...


    By F&J SPECIALTY PRODUCTS, INC.

  • A Comparison of Point Sensors and Open Path Monitors For Toxic Gas (esp. HF) Monitoring

    Point Sensors Ion Mobility Spectroscope (IMS) – a gas sample is ionized by a radioactive source (Ni63). Differences in ion drift under the influence of an applied electric field produce a spectrum that is dependent on the mass, charge, and shape of the component ions. The detector signal and strength is tuned to the drift time of the ion of interest (in this case HF) and signal strength is ...


    By Boreal Laser Inc.

  • Why is there no effective real-time Continuous Radiation Monitoring System?

    Japan's disaster has raised many questions regarding safety of the public. It has served as a wakeup call to the agencies tasked with protecting the public. Not least of these questions, but certainly the most far-reaching is the question of the safety of nuclear power and radiation contamination of air and water. Way back when nuclear power was first established, in the 1960s public opinion was ...


    By Technical Associates

  • Monitoring radon and its progeny in the environment of the vertical 15 UD Pelletron accelerator facility

    Environmental radioactivity due to radon and its progenies in the ambient air at the vertical 15 UD Pelletron accelerator facility of the Inter University Accelerator Centre, New Delhi, India was evaluated to calculate the annual effective dose to the workers and users. The radon activity was measured with an active monitor. The activity concentrations of the radon progenies were measured ...


    By Inderscience Publishers

  • Locus and Overhoff to Offer Real Time Tritium Monitoring and Compliance Software at Nuclear Facilities

    Locus Technologies (Locus), the industry leader in web-based environmental compliance and information management software, and Overhoff Technology Corporation, the world's leader in the design and manufacture of Tritium monitors and radiation monitoring systems, have partnered to offer a complete Tritium monitoring solution for the nuclear industry using Overhoff's Tritium instrumentation and ...


    By Technical Associates

  • Groundwater monitoring and assessment with ESdat environmental data management software and its use in groundwater remediation plans

    Groundwater investigations, contaminated/industrial sites, landfill and regulatory compliance are all ideal areas for environmental consultants and site managers, specializing in groundwater monitoring and assessment, to use environmental data management software. A successful groundwater ...

  • Nuclear reactor coolant removal monitored by hydrogen measurements provided by Systech`s 542 programmable gas analyzers

    NNC Limited is using Systech's 542 programmable gas analyzers to monitor hydrogen off-gas in test rig for Dounreay Fast Breeder Reactor decommissioning. Decommissioning nuclear reactors is not only a matter of dealing safely with the radioactivity issues, non-nuclear contamination can be equally difficult to remove safely and economically. NNC Limited is currently developing a system to remove ...


    By Systech Instruments Ltd

  • Evaluating emergency response models of radiological dispersion in complex terrain

    Operational airborne releases of trace quantities of the radioactive noble gas 41Ar from the HIFAR Nuclear Research Reactor located in Sydney, Australia, are valuable for evaluating emergency response models incorporating radiological dispersion. A network of meteorological stations and GR–150 environmental gamma dose detectors are placed in the complex terrain within a 5 km radius of the site. ...


    By Inderscience Publishers

  • Prevention measures against radiation exposure to radon in well waters: analysis of the present situation in Finland

    Naturally occurring radioactive elements are found in all groundwaters, especially in bedrock waters. Exposure to these radioactive elements increases the risk of cancer. The most significant of these elements is radon which, as a gas, is mobile and dissolves in groundwater. In Finland, water supply plants are obliged to carry out statutory monitoring of the water quality, including radon. ...


    By IWA Publishing

  • Nuclear tools for characterising radiological dispersion in complex terrain: evaluation of regulatory and emergency response models

    Routine operations of a nuclear research reactor and its facilities offer opportunities for collection of rare environmental tracer datasets which can be used for atmospheric dispersion model evaluation studies. The HIFAR reactor near Sydney, Australia, routinely emits the radioactive noble gas 41Ar, and other radionuclides such as 133Xe and 135Xe are also emitted from nearby radiopharmaceutical ...


    By Inderscience Publishers

  • FRACKING: Freeing Energy Resources versus Polluting the Earth and Public Health with Radiation and Toxic Chemicals?

    Fracking demands the use of millions of gallons of water, precious drinking water, and sand infused with up to 1,000 different toxic chemicals to fracture the shale rock and release the trapped gas or oil. The wastewater, brine, and sludge are then returned to the surface and in need of disposal. Unfortunately there is not yet a clear and safe method of disposal or storage. Among these chemicals ...


    By Technical Associates

  • Matrix Gemini LIMS at work in the Nuclear Industry

    Bradwell nuclear power station is located on the Dengie peninsula at the mouth of the River Blackwater in Essex. Construction of Bradwell power station began in December 1957 and electricity generation started in 1962. It had two Magnox reactors producing 242 Megawatts of electricity. It could supply enough electricity to meet the combined needs of three towns the size of Chelmsford, Colchester ...


    By Autoscribe Informatics

  • Application notes - viscosity measurement

    Most laboratory viscometers employ the well-known principle of rotational viscometers to measure viscosity by sensing the torque required to rotate a spindle at a constant speed while it is immersed in the sample fluid. This is because the torque, generally measured using the reaction torque on the motor, is proportional to the viscous drag on the immersed spindle and thus the viscosity of the ...


    By Sensor Technology Ltd

  • Case study - SEAWATCH India

    CLIENT: Department of Ocean Development (DOD), Government of India PURPOSE: Implementation of a Marine Surveillance and Information System (MIS) for Indian waters DURATION: Phase 1, 1997 to 2000 Operational phase: 2000 onwards LOCATION: Indian EEZ DESCRIPTION: The project ...


    By Fugro OCEANOR AS

  • STS Products featured in 1st Edition of Radiation Regulator Magazine

     Contamination Simulators by STS Ltd  Safe Training Systems Ltd (STS) are based  in the UK. STS manufacture and sell  instrumentation for the training of workers involved in  the handling and identification of radioactive material  through a range of realistic simulated instruments.  They sell “off-the-shelf” products ...


    By Safe Training Systems Ltd

  • Ionising Radiation

    Introduction The energy level of some types of radiation is high enough so that when they interact with matter they cause the formation of electrically charged particles or ion-pairs and break molecular bonds. These so-called ionising radiations are by their nature potentially harmful to life; at high doses they can be lethal and at lower doses can cause genetic damage. Ionising radiation occurs ...

  • London 2012: Legacy or Liability?

    After spending hundreds of millions of tax payers’ money on a high profile ‘clean-up’, it has become clear that the 2012 Olympic Park actually remains classified as a contaminated brownfield site. Documents show that the whole area is to have as little as 2 feet (60cm) of “clean” material placed on top of a warning marker layer of orange plastic fabric sheeting, of a type called Terram 1000, ...


    By Shift Soil Remediation LLP

  • Superinsulated Houses

    Superinsulated building is a method of energy-efficient construction that can be adapted to any structure, commercial or residential, in any climate. A superinsulated (SI) home can save 75% of the annual energy costs for heating and cooling compared to a standard home, and is also more comfortable and healthy for the occupants. SI houses can be of any design—Colonial, Victorian, Contemporary, ...


Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you