title: Radiation dosimetry properties of smartphone CMOS sensors.
abstract: During the past years, several smartphone applications have been developed for radiation detection. These applications measure radiation using the smartphone camera complementary metal-oxide-semiconductor sensor. They are potentially useful for data collection and personal dose assessment in case of a radiological incident. However, it is important to assess these applications. Six applications were tested by means of irradiations with calibrated X-ray and gamma sources. It was shown that the measurement stabilises only after at least 10-25 min. All applications exhibited a flat dose rate response in the studied ambient dose equivalent range from 2 to 1000 μSv h(-1). Most applications significantly over- or underestimate the dose rate or are not calibrated in terms of dose rate. A considerable energy dependence was observed below 100 keV but not for the higher energy range more relevant for incident scenarios. Photon impact angle variation gave a measured signal variation of only about 10 %.
authors.affiliation: SCK•CEN, Boeretang 200, Mol 2400, Belgium ovhoey@sckcen.be.
authors.forename: Olivier
authors.initials: O
authors.lastname: Van Hoey
authors.affiliation: SCK•CEN, Boeretang 200, Mol 2400, Belgium.
authors.forename: Alexia
authors.initials: A
authors.lastname: Salavrakos
authors.affiliation: SCK•CEN, Boeretang 200, Mol 2400, Belgium.
authors.forename: Antonio
authors.initials: A
authors.lastname: Marques
authors.affiliation: SCK•CEN, Boeretang 200, Mol 2400, Belgium.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Nagao
authors.affiliation: SCK•CEN, Boeretang 200, Mol 2400, Belgium Universiteit Hasselt, Martelarenlaan 42, Hasselt 3500, Belgium.
authors.forename: Ruben
authors.initials: R
authors.lastname: Willems
authors.affiliation: SCK•CEN, Boeretang 200, Mol 2400, Belgium.
authors.forename: Filip
authors.initials: F
authors.lastname: Vanhavere
authors.affiliation: SCK•CEN, Boeretang 200, Mol 2400, Belgium.
authors.forename: Vanessa
authors.initials: V
authors.lastname: Cauwels
authors.affiliation: SCK•CEN, Boeretang 200, Mol 2400, Belgium.
authors.forename: Luana F
authors.initials: LF
authors.lastname: Nascimento
mesh_terms: D015374:Biosensing Techniques; D006801:Humans; D008670:Metals / Q000737:chemistry*; D009010:Monte Carlo Method; D010087:Oxides / Q000737:chemistry*; D011829:Radiation Dosage; D011874:Radiometry / Q000379:methods*; D012666:Semiconductors; D000068997:Smartphone / Q000706:statistics & numerical data*
chemical_list: D008670:Metals; D010087:Oxides