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Neutron radiation measurements on several international flights (CROSBI ID 210948)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Poje, Marina ; Vuković, Branko ; Radolić, Vanja ; Miklavčić, Igor ; Planinić, Josip Neutron radiation measurements on several international flights // Health physics, 108 (2015), 3; 344-350. doi: 10.1097/HP.0000000000000192

Podaci o odgovornosti

Poje, Marina ; Vuković, Branko ; Radolić, Vanja ; Miklavčić, Igor ; Planinić, Josip

engleski

Neutron radiation measurements on several international flights

The Earth is continually exposed to cosmic radiation of both solar and galactic origin. High energy particles interact with the constituents in the atmosphere producing secondary particles that create radiation fields at the aircraft altitudes. These secondary particles mainly consist of photons, protons, neutrons, charged and uncharged pions and muons. The neutron component dominates the hadron cascade at lower altitudes as a result of their longer mean free path. Since air transportation became more available to a greater number of people, this has led to the increase in the number of persons exposed to ionizing radiation of cosmic origin. This concerns pilots and cabin crews, but also for frequent flyers. A neutron component of cosmic radiation was measured using LR 115/CR-39 track detector associated with the 10B converter foil. The measurement of the neutron dose is a good approximation of the total dose since neutrons carry about 50% of the total ambient dose equivalent at aircraft altitudes. Also, the results of the measurements were compared with the data obtained by EPCARD software simulation. The measured neutron dose rate had a span from 0.36 to 7.63 μSv/h (dose enhancement due to high solar activity in the flight period).

Cosmic radiation ; Aircrew ; Flight level ; Neutron track etch detector ; Dose rate

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Podaci o izdanju

108 (3)

2015.

344-350

objavljeno

0017-9078

10.1097/HP.0000000000000192

Povezanost rada

Fizika

Poveznice
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