caa a22 4500 397503865 CHVBK 20180308164539.0 cr unu---uuuuu 161202e19950801xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082765 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082765 TEPC Measurements with the Variance-Covariance Method on Board Aircraft [Elektronische Daten] [L. Lindborg, J.E. Grindborg, O. Gullberg, U. Nilsson, G. Samuelson, P. Uotila] A portable instrument based on the variance-covariance method is described. Its electric current and its variance as well as the covariance between the two currents are used to determine the dose and the quality factor. The paper gives the essential relations from which the quantities are calculated and presents the main sources of uncertainties. The instrument has been used on board an aircraft at 11 km height for measurement of the ambient dose equivalent rate became (4.5 ± 1.0) µSv.h-1. For the normalisation it was important to have an accurate estimate of the low LET dose fraction. Radiation Protection Dosimetry Lindborg L. aut Grindborg J.E. aut Gullberg O. aut Nilsson U. aut Samuelson G. aut Uotila P. aut Radiation Protection Dosimetry Oxford University Press 61/1-3(1995-08-01), 119-124 0144-8420 61:1-3<119 1995 61 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082765 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082765 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lindborg L. aut NATIONALLICENCE 700 1- Grindborg J.E. aut NATIONALLICENCE 700 1- Gullberg O. aut NATIONALLICENCE 700 1- Nilsson U. aut NATIONALLICENCE 700 1- Samuelson G. aut NATIONALLICENCE 700 1- Uotila P. aut NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 61/1-3(1995-08-01), 119-124 0144-8420 61:1-3<119 1995 61 rpd Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford