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Gamma spectroscopy of environmental samples
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10.1119/1.4793595
/content/aapt/journal/ajp/81/5/10.1119/1.4793595
http://aip.metastore.ingenta.com/content/aapt/journal/ajp/81/5/10.1119/1.4793595

Figures

Image of Fig. 1.
Fig. 1.

A graph of the width parameter σ versus energy for our high-resolution gamma detector.

Image of Fig. 2.
Fig. 2.

A graph of the counts-to-yield ratio / vs. energy for Th using a lantern mantle as the sample. For gamma energies above 200 keV the data follows a power law, indicated by the dashed line.

Image of Fig. 3.
Fig. 3.

A graph of / vs. for a soil sample. The thorium series radiation is plotted with solid circles and the uranium series with solid squares. The / value for the peak at 186 keV, which contains both U and U series gammas, is plotted as an open triangle. The 1460 keV K radiation is plotted as an open circle.

Image of Fig. 4.
Fig. 4.

A graph of / vs. for “young” Brazil nuts. The radiation from Ac, before Th, is plotted as solid circles. The radiation from after Th is plotted as solid squares.

Image of Fig. 5.
Fig. 5.

A graph of / vs. for “old” Brazil nuts. The radiation from Ac, before Th, is plotted as solid circles. The radiation from after Th is plotted as solid squares.

Image of Fig. 6.
Fig. 6.

A graph of counts vs. energy for the x-ray region of Brazil nuts. The photopeak at 32 keV is due to x-ray fluorescence of barium.

Image of Fig. 7.
Fig. 7.

A graph of / vs. for the uranium series. The solid squares are for the U series and the solid circles represent the U series.

Tables

Generic image for table
Table I.

The Th decay series.

Generic image for table
Table II.

The U decay series.

Generic image for table
Table III.

The U decay series.

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/content/aapt/journal/ajp/81/5/10.1119/1.4793595
2013-04-16
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Gamma spectroscopy of environmental samples
http://aip.metastore.ingenta.com/content/aapt/journal/ajp/81/5/10.1119/1.4793595
10.1119/1.4793595
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