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Mukherjee, B.* ; Wu, X.* ; Maczka, T. ; Kwan, T.* ; Huang, Y.* ; Mares, V.

Near space radiation dosimetry in Australian outback using a balloon borne energy compensated PIN diode detector.

Radiat. Meas. 94, 65-72 (2016)
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Open Access Green
This paper reports the near space ballooning experiment carried out at Australian outback town West Wyalong (33°51′S, 147°24′E) on 19 July 2015. Several dedicated electronic detectors including digital temperature and acceleration (vibration) sensors and an energy compensated PIN-diode gamma ray dosimeter were installed in a thermally insulated Styrofoam payload box. A 9 V Lithium-Polymer battery powered all the devices. The payload box was attached to a helium-filled latex weather balloon and set afloat. The balloon reached a peak burst altitude of 30 km and then soft-landed aided by a self-deploying parachute 66.2 km away form the launch site. The payload box was retrieved and data collected from the electronic sensors analysed. The integrated cosmic ray induced photon ambient dose equivalent recorded by the PIN diode detector was evaluated to be 0.36 ± 0.05 μSv. Furthermore, a high-altitude extended version of commercially available aviation dosimetry package EPCARD.Net (European Program package for the Calculation of Aviation Route Doses) was used to calculate the ambient dose equivalents during the balloon flight. The radiation environment originated from the secondary cosmic ray shower is composed of neutrons, protons, electrons, muons, pions and photons. The photon ambient dose equivalent estimated by the EPCARD.Net code found to be 0.47 ± 0.09 μSv. The important aspects of balloon based near-space radiation dosimetry are highlighted in this paper.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Australian Outback ; Cosmic Ray Shower ; Epcard.net ; High-altitude Balloon Mission ; Pfotzer-maximum ; Pin-diode Dosimeter; Dose Conversion Coefficients; Air Crew Dosimetry; Altitudes; Silicon; Epcard
ISSN (print) / ISBN 1350-4487
e-ISSN 1879-0925
Quellenangaben Volume: 94, Issue: , Pages: 65-72 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place Oxford
Reviewing status Peer reviewed