Investigation on contribution of neutron monitor data to estimation of aviation doses

Kákona, Martin; Ploc, Ondřej; Kyselová, Dagmar; Kubančák, Jan; Langer, R. M.; Kudela, K.

doi:10.1016/j.lssr.2016.11.001

Cited by 3 publications

(1 citation statement)

References 16 publications

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“…Our group has been performing routine measurements of ionizing radiation on board aircraft by silicon-diode-based dosimeter Liulin since 2001 [1]. These measurements were compared with the measurements of secondary cosmic rays performed on the ground by neutron monitors [2] and with a model of secondary cosmic rays CARI [3] which is used for the estimation of aircrew doses in the Czech Republic [4]. Our effort in long-term measurements [5] has resulted in the development of a new dosimeter with a fully open design which is described here.…”

Section: Introductionmentioning

confidence: 99%

AIRDOS — open-source PIN diode airborne dosimeter

Kákona¹,

Šlegl²,

Kyselová³

et al. 2021

J. Inst.

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This article introduces a new open-source dosimeter AIRDOS intended for measurements on board aircraft. In-flight measurement of a mixed radiation field is a challenging deal that requires a small low-power-consumption battery-operated lightweight device with long endurance. A new innovative electronic design with a silicon PIN diode used as a sensor is presented, including full description and manufacturing documentation. The device was verified by measurements and compared with reference dosimeters widely used in aircraft dosimetry, such as Liulin MDU and HAWK TEPC. A comparison of the measurements with a computation model CARI 7 was performed as well. All the comparisons yield positive results within known errors. The new design of the dosimeter has a very satisfactory performance in terms of battery life and does not need calibration after manufacturing or recalibration after a long time of usage. Open-source design predetermines AIRDOS for future improvements and open-science.

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Section: Introductionmentioning

confidence: 99%

AIRDOS — open-source PIN diode airborne dosimeter

Kákona¹,

Šlegl²,

Kyselová³

et al. 2021

J. Inst.

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Estimated radiation exposure of German commercial airline cabin crew in the years 1960–2003 modeled using dose registry data for 2004–2015

Wollschläger¹,

Hammer

Schafft

et al. 2017

J Expo Sci Environ Epidemiol

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Exposure to ionizing radiation of cosmic origin is an occupational risk factor in commercial aircrew. In a historic cohort of 26,774 German aircrew, radiation exposure was previously estimated only for cockpit crew using a job-exposure matrix (JEM). Here, a new method for retrospectively estimating cabin crew dose is developed. The German Federal Radiation Registry (SSR) documents individual monthly effective doses for all aircrew. SSR-provided doses on 12,941 aircrew from 2004 to 2015 were used to model cabin crew dose as a function of age, sex, job category, solar activity, and male pilots' dose; the mean annual effective dose was 2.25 mSv (range 0.01-6.39 mSv). In addition to an inverse association with solar activity, exposure followed age- and sex-dependent patterns related to individual career development and life phases. JEM-derived annual cockpit crew doses agreed with SSR-provided doses for 2004 (correlation 0.90, 0.40 mSv root mean squared error), while the estimated average annual effective dose for cabin crew had a prediction error of 0.16 mSv, equaling 7.2% of average annual dose. Past average annual cabin crew dose can be modeled by exploiting systematic external influences as well as individual behavioral determinants of radiation exposure, thereby enabling future dose-response analyses of the full aircrew cohort including measurement error information.

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Cr10—a Public Database of Cosmic Radiation Measurements at Aviation Altitudes of About 10 Km

Kákona

Kyselová

Ambrožová

et al. 2019

Radiation Protection Dosimetry

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Long-term measurements using silicon radiation spectrometer Liulin on board commercial aircraft have been performed since 2001; results were put into a new database, which covers more than 4500 flights with more than 130 000 measurements. Methodology and tools were developed to normalize the data with respect to latitude and altitude and thus enable comparison with other radiation detectors and with model calculations. This capability is demonstrated using data from the neutron monitor at Lomnický štít. Instead of providing data files for individual measurement period, two software solutions are delivered. First is a web-based user interface for visualizing and downloading arbitrary time window of interest from the database hosted at http://cr10.odz.ujf.cas.cz. The second is a set of interactive Python notebooks available at GitHub. Those implement the calibration, normalization and visualization methods—so the outputs can be tailored to user needs. The software and data are provided under GNU/CC license.

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Investigation on contribution of neutron monitor data to estimation of aviation doses

Cited by 3 publications

References 16 publications

AIRDOS — open-source PIN diode airborne dosimeter

AIRDOS — open-source PIN diode airborne dosimeter

Estimated radiation exposure of German commercial airline cabin crew in the years 1960–2003 modeled using dose registry data for 2004–2015

Cr10—a Public Database of Cosmic Radiation Measurements at Aviation Altitudes of About 10 Km

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