Beta and Gamma Gradients

Leif Løvborg, C. F. Gaffney, P. A. Clark, M. J. Aitken

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Experimental and/or theoretical estimates are presented concerning, (i) attenuation within the sample of beta and gamma radiation from the soil, (ii) the gamma dose within the sample due to its own radioactivity, and (iii) the soil gamma dose in the proximity of boundaries between regions of differing radioactivity. It is confirmed that removal of the outer 2 mm of sample is adequate to remove influence from soil beta dose and estimates are made of the error introduced by non-removal. Other evaluations include variation of the soil gamma dose near the ground surface and it appears that the present practice of avoiding samples above a depth of 0.3 m may be over-cautious
    Original languageEnglish
    JournalInternational Journal of Radiation Applications and Instrumentation. Part D: Nuclear Tracks and Radiation Measurements
    Volume10
    Issue number4-6
    Pages (from-to)647-653
    ISSN1359-0189
    Publication statusPublished - 1985

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