Sample code

²³⁸U

(Bq∙Kg⁻¹)

²³²Th

(Bq∙Kg⁻¹)

⁴⁰K

(Bq∙Kg⁻¹)

Sample

code

²³⁸U

(Bq∙Kg⁻¹)

²³²Th

(Bq∙Kg⁻¹)

⁴⁰K

(Bq∙Kg⁻¹)

JF1

0.0636

0.0411

0.5086

WF1

0.1914

0.6855

0.1896

JF2

0.2055

0.1162

0.4317

WF2

0.2551

0.6067

0.4295

JF3

0.5970

0.0979

0.2452

WF3

1.6493

0.4139

0.5827

JF4

0.0832

0.1656

0.3598

WF4

1.0670

0.5351

0.6109

JF5

0.4008

0.0976

1.0000

WF5

0.5395

0.5865

0.1605

Average

0.270 ± 0.10

0.104 ± 0.02

0.509 ± 0.13

Average

0.743 ± 0.27

0.566 ± 0.05

0.395 ± 0.10