Counts /
ms
m
Self-indication no sample
Self-indication with Au10mm
Self-indication with Au10 mm+Ag50 mm
Fig. 3.6 TOF spectra obtained with the self-indication method for pure gold and mixture of gold
and silver
m
B-10 indicator, U-nat
B-10 indicator, U-nat, Np-237, Am-243
Fig. 3.7 TOF spectra obtained with NRTA for
nat
U and mixture of
nat
U,
237
Np, and
243
Am
3 Development of Nondestructive Assay to Fuel Debris of Fukushima Daiichi. . .
27