Radiation Dosimetry Properties of Smartphone Cmos Sensors

Hoey, Olivier Van; Salavrakos, Alexia; Marques, A.; Nagao, Alexandre; Willems, Ruben; Vanhavere, F.; Cauwels, Vanessa; Nascimento, L.F.

doi:10.1093/rpd/ncv352

Cited by 12 publications

(19 citation statements)

References 2 publications

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“…This increased sensitivity enables also shorter measurement intervals in comparison with smartphone imaging sensors (cf. [6]).…”

Section: Discussionmentioning

confidence: 99%

“…With digital cameras integrated in modern smartphones, their sensitivity to radiation beyond the visible spectrum has been exploited to use them as detectors for ionising radiation in physics education settings [5] and radiation dosimetry applications [6]. However, with pixel dimensions in the order of a few micrometers, these sensors embedded in mobile consumer devices lack sensitivity towards ionising radiation and can barely discern different types and energies.…”

Section: Introductionmentioning

confidence: 99%

“…The most promising measurements reported suggest discrimination between only two categories: traces of minimum-ionising particles like atmospheric muons and other types of terrestrial radiation (α,β,γ) as a whole [7,8]. The versatility of such a detector is, therefore, comparable to a Geiger-Müller counter and limited to measure relative radiation intensity across long measurement intervals (10 min to 25 min are recommended in [6] even for high ambient dose rates of 10 μSv/h). Moreover, since corresponding smartphone applications must take individual properties of the specific imaging sensor into account, the measurement accuracy is questionable if the software does not provide calibration settings for specific smartphone cameras.…”

Section: Introductionmentioning

confidence: 99%

“…For example, the mobile application used in [5] has not been updated for iOS devices in the last three years and does not work properly with current iPhones and iOS versions (last time checked: 3 September 2019). From the six applications investigated in [6], it is the only application which is still available on the app store. Our approach is based on external radiation sensors with well known characteristics which are accompanied and enhanced by mobile open source software.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Smartphone and Tablet-Based Sensing of Environmental Radioactivity: Mobile Low-Cost Measurements for Monitoring, Citizen Science, and Educational Purposes

Keller

Benoit

Müller

et al. 2019

Sensors

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Sensors for environmental radioactivity based on two novel setups using photodiodes, on the one hand, and an advanced tablet-based hybrid pixel detector, on the other hand, are presented. Measurements of four kinds of terrestrial and every-day radiation sources are carried out: Airborne radon, a mineral containing traces of uranium, edible potassium salt, and an old radium watch. These measurements permit comparisons between different types of ambient radioactive sources and enable environmental monitoring. Available data comprise discrimination between α- and β−-particles in an energy range of 33 keV to 8 MeV and under ambient air conditions. The diode-based sensor is particularly useful in portable applications since it is small and sturdy with little power consumption. It can be directly connected to a smartphone via the headset socket. For its development, the low-cost silicon positive-intrinsic-negative (PIN) diodes BPX61 and BPW34 have been characterised with capacitance versus voltage (C-V) curves. Physical detection limits for ionising radiation are discussed based on obtained depletion layer width: (50±8) sans-serifμnormalm at 8 V. The mobile and low-cost character of these sensors, as alternatives to Geiger counters or other advanced equipment, allows for a widespread use by individuals and citizen science groups for environmental and health protection purposes, or in educational settings. Source code and hardware design files are released under open source licenses with this publication.

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“…This increased sensitivity enables also shorter measurement intervals in comparison with smartphone imaging sensors (cf. [6]).…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Smartphone and Tablet-Based Sensing of Environmental Radioactivity: Mobile Low-Cost Measurements for Monitoring, Citizen Science, and Educational Purposes

Keller

Benoit

Müller

et al. 2019

Sensors

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“…They were equipped with a specialized app: "RadioactivityCounter" 4 , 8 (http://www.hotray-info.de/). The app is available for Android and iOS systems.…”

Section: Methodsmentioning

confidence: 99%

In the Field Feasibility of a Simple Method to Check for Radioactivity in Commodities and in the Environment

Alessandri

2017

PLoS Curr

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Introduction:Some release of radionuclides into the environment can be expected from the growing number of nuclear plants, either in or out of service. The citizen and the big organization could be both interested in simple and innovative methods for checking the radiological safety of their environment and of commodities, starting from foods.Methods:In this work three methods to detect radioactivity are briefly compared focusing on the most recent, which converts a smartphone into a radiation counter.Results:The results of a simple sensitivity test are presented showing the measure of the activity of reference sources put at different distances from each sensor.Discussion:The three methods are discussed in terms of availability, technology, sensitivity, resolution and usefulness. The reported results can be usefully transferred into a radiological emergency scenario and they also offer some interesting implication for our current everyday life, but show that the hardware of the tested smart-phone can detect only high levels of radioactivity. However the technology could be interesting to build a working detection and measurement chain which could start from a diffused and networked first screening before the final high resolution analysis.

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International Cooperation for Enhancing Nuclear Safety, Security, Safeguards and Non-proliferation

2016

Springer Proceedings in Physics

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The series Springer Proceedings in Physics, founded in 1984, is devoted to timely reports of state-of-the-art developments in physics and related sciences. Typically based on material presented at conferences, workshops and similar scientific meetings, volumes published in this series will constitute a comprehensive up-to-date source of reference on a field or subfield of relevance in contemporary physics. Proposals must include the following:-name, place and date of the scientific meeting-a link to the committees (local organization, international advisors etc.)-scientific description of the meeting-list of invited/plenary speakers-an estimate of the planned proceedings book parameters (number of pages/articles, requested number of bulk copies, submission deadline).

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Radiation Dosimetry Properties of Smartphone Cmos Sensors

Cited by 12 publications

References 2 publications

Smartphone and Tablet-Based Sensing of Environmental Radioactivity: Mobile Low-Cost Measurements for Monitoring, Citizen Science, and Educational Purposes

Smartphone and Tablet-Based Sensing of Environmental Radioactivity: Mobile Low-Cost Measurements for Monitoring, Citizen Science, and Educational Purposes

In the Field Feasibility of a Simple Method to Check for Radioactivity in Commodities and in the Environment

International Cooperation for Enhancing Nuclear Safety, Security, Safeguards and Non-proliferation

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