Dosimeters Articles

  • doseBadge proves no problem for Patterson Pumps - Case study

    A chance introduction to Cirrus Research at a US Health & Safety Conference proved to be very fortunate timing for Greg Dobson. Greg is the Environmental and Safety Manager for the Patterson Pump Company, one of the world’s leading suppliers of quality pumps for sectors including: flood control, industrial, fire, municipal and HVAC. He explains in his own words: “While attending ...


    By Cirrus Research plc

  • The Measure Issue 10 Autumn 2016 – The Cirrus Research Newsletter

    The latest issue of The Measure, the Cirrus Research newsletter is now available for download. In this issue we’ve covered: The new doseBadge5 Noise Dosimeter with a history and timeline of the doseBadge family A case study for the Optimus Green Sound Level Meter and the Invictus Environmental Noise Monitor at the Classical Haçienda ...


    By Cirrus Research plc

  • Introducing Octave Band Filters for the doseBadge5 Noise Dosimeter

    We’re pleased to announce that the Cirrus doseBadge5 Noise Dosimeter now includes 1:1 Octave Band Filters as standard*, adding to the already comprehensive set of measurement data that the unique doseBadge5 can provide. The doseBadge5 is already the best specified dosimeter available with multiple measurement channels, comprehensive data logging, ...


    By Cirrus Research plc

  • Visit Cirrus at A+A 2017 and see the new doseBadge5 Noise Dosimeter

    Cirrus Research will be presenting a number of new and exciting additions to the existing range at the A+A Exhibition in October 2017. On stand 6C51 will be the new doseBadge5 Noise Dosimeter and the Optimus Sound Level Meters which together provide a complete solution for both occupational and environmental noise measurements. A+A 2017 will be the first opportunity for visitors to see ...


    By Cirrus Research plc

  • doseBadge Builds up a Head of Steam in York

    Here’s the latest case study from Cirrus Research, featuring the world-famous National Railway Museum. See how the doseBadge Noise Dosimeter helps Anna Kavanagh check that her teams are not exceeding their daily noise exposure limits. The Client: The Science Museum Group The Sites: National Railway Museum, York The Issue: Noise ...


    By Cirrus Research plc

  • Experimental determination of dose uniformity in the CDTN gamma irradiator

    This paper describes an experimental study of dose uniformity within a container used for products irradiation, in the gamma irradiation facility at Nuclear Technology Development Center (CDTN). The CDTN is a research institute of the National Nuclear Energy Commission (CNEN), Brazil. Polymethylmethacrylate (PMMA) dosimeters were used in order to determine the Dose Uniformity Ratio (DUR) inside ...


    By Inderscience Publishers

  • Controlling Exposure to Noise at Work with Personal Noise Dosimeters

    Which method is best to monitor noise: sound level meter or noise dosimeter? Controlling exposure to noise at work with noise dosimeters Our work environment has been transformed since the 1970’s with the introduction of new machinery and technical equipment designed to improve and increase general productivity. This has revolutionalised the way we operate ...


    By Pulsar Instruments plc

  • Thermoluminescence studies of nanoparticle and bulk NaMgF
    3
    :Mn

    Thermoluminescence and photoluminescence are observed in nanoparticle and bulk NaMgF3:Mn2+ samples. The activation energies for the two main peaks in the TL data are similar for nanoparticle and bulk samples and they are nearly independent of Mn2+ concentration. The similar trap depths suggest that ...


    By Inderscience Publishers

  • Gold nanoparticles as a sensitising agent in external beam radiotherapy and brachytherapy: a feasibility study through Monte Carlo simulation

    In recent years, gold nanoparticles (GNP) have been proposed as sensitising agents in radiotherapy. Several studies, performed both through Monte Carlo simulation of dosimetric and microdosimetric enhancement in presence of GNPs and through in–vitro experiments, have clearly shown the powerfulness of such a technique in radiotherapy. Aim of the present work is to estimate the dose enhancement ...


    By Inderscience Publishers

  • Grab £1000 of free benefits with the dBAdvantage Card from Cirrus Research

    The dBAdvantage Card from Cirrus is the quick and easy way to grab £1000 of FREE benefits when you buy a Cirrus sound level meter or doseBadge noise dosimeter kit. As a dBAdvantage Card member you’ll automatically get access to the following benefits: 1. A FREE place, each ...


    By Cirrus Research plc

  • Performance of some handheld dosimeters used for gamma–ray ambient dose rate measurements

    A study was carried out on the performance of some handheld dosimeters that are used for measuring ambient gamma dose rates. A CsI scintillation–based and two GM–based dosimeters were used to measure the absorbed dose rates in an indoor environment, inside a lead shield, on different floors of a building, in a desert environment and in a boat on the Arabian Gulf. The study showed that while some ...


    By Inderscience Publishers

  • Evaluation of occupational radiation exposure of cardiologists in interventional radiography in Mashhad CATHLABs

    Several studies have revealed that interventional radiography procedures performed in cardiology departments are high dose techniques. In this study, effective dose of cardiologists working in hospitals Catheterisation Laboratories (CATHLABs) in Mashhad city have been measured during Coronary Angiography (CA) and Percutaneous Transluminal Coronary Angioplasty (PTCA) procedures. In order to ...


    By Inderscience Publishers

  • Dosimetry analysis of two new design 103 Pd interstitial brachytherapy sources

    With increased demand for low 103 Pd (palladium) seed sources, to treat prostate and eye cancers, new sources have been designed and introduced. This paper presents the two new palladium brachytherapy sources, IR03- 103 Pd and IR04- 103 Pd that have been developed at Agricultural, Medical & Industrial Research School . The dosimetric parameters, such as ...


    By Inderscience Publishers

  • Study of the effect of post-irradiation with low linear energy transfer on optical and spectral response of CR-39 polymeric material

    The optical properties of CR-39 polymer track detectors irradiated with high Linear Energy Transfer (LET) (alpha particles at energies 3.05 MeV and 4.86 MeV) and followed by low LET (gamma ray irradiation at different doses ranging from 0 to 200 kGy) were investigated. The chemical etching was verified for all samples. Also, the optical properties were studied with an Ultraviolet-Visible (UV-VIS) ...


    By Inderscience Publishers

  • Canarina CUSTIC software · noise dosimeters and modeling · introduction 5

    Noises are irregular and disordered vibrations including all possible frequencies. The intensity of a sound I can be expressed in decibels with the standard equation: L=10 log(I/I0) where I0 is the quietest sound most people can hear, the threshold of hearing 10-12Wm-2.  When the ratio is between ...

  • Study of the effect of post-irradiation with low linear energy transfer on optical and spectral response of CR-39 polymeric material

    The optical properties of CR-39 polymer track detectors irradiated with high Linear Energy Transfer (LET) (alpha particles at energies 3.05 MeV and 4.86 MeV) and followed by low LET (gamma ray irradiation at different doses ranging from 0 to 200 kGy) were investigated. The chemical etching was verified for all samples. Also, the optical properties were studied with an Ultraviolet-Visible (UV-VIS) ...


    By Inderscience Publishers

  • Are radiologists and radiological technologists at greater risk of reproductive health problems? Data from seven provinces in Iran

    Many radiation workers believe that occupational exposures have the potential to interfere with their normal reproductive function. In this study, a total of 621 radiation workers (336 females and 285 males) who worked in hospitals/clinics in seven different provinces were randomly selected. All the participants were interviewed and the reports of their previous exposures, as recorded by film ...


    By Inderscience Publishers

  • Development of sintered composites of CaSO4 doped with Dy and Nd

    The main purpose of this work is the development of sintered composites in order to allow their use as thermoluminescence (TL) dosimeters using a simple route to preparation and employing high temperature. The composites were prepared with CaSO4.2H2O doped with Dy2O3 and NdO3. Initially, CaSO4.2H2O was dehydrated in an oven at 100°C for 1 h. After addition of dopants and homogenisation, Polyvinyl ...


    By Inderscience Publishers

  • The definition of low doses and their importance in radiobiology

    The aim of this work is to introduce a new dosimetric approach that is expected to contribute to characterising and distinguishing low, intermediate and high dose ranges. The emphasis will be on the low dose range, owing to the importance of the biological effects at low doses. A Monte Carlo code was used to simulate the energy degradation of photons in water, where the coherent and incoherent ...


    By Inderscience Publishers

  • Radon Levels in Dwellings of New Mirpur Azad Kashmir, Sub-Himalayas, Pakistan

    Radon concentrations were measured in kucha, semi-kucha and pucka houses located on the sedimentary rocks of Early Pleistocene-Pliocene Soan Formation, Pleistocene Mirpur conglomerate and recent deposits. The radon concentration was measured using CN 85 nuclear tracks etch detectors in box type dosimeters installed in the bedrooms and kitchens of the houses. It was found to vary from 14 ± 7 Bqm-3 ...


    By SAGE Publications

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