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. 2022 Nov 14;12(50):32684–32692. doi: 10.1039/d2ra06163e

Determination of F (ppm) in USGS STM-1 for method validation.

Reactions utilized for beam current normalization Prompt γ-ray energy taken (keV) Experimental value (x1 ± u1) Certified value (x2 ± u2) Relative bias (E) (%) Inline graphic Zeta score (z) Inline graphic
181Ta(p,p′γ)181Ta 110 984 ± 49 910 ± 50 8.1 1.0
197 880 ± 40 910 ± 50 −3.3 −0.5
1236 1048 ± 52 910 ± 50 15.2 1.9
14N(p,p′γ)14N 110 980 ± 39 910 ± 50 7.7 1.1
197 890 ± 27 910 ± 50 −2.2 −0.4
1236 1035 ± 41 910 ± 50 13.7 1.9