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102~1 ~~~~-----.---- 4000
Fig.4.5
y-Ray spectrum taken with a Ge(Li) spectrometer following bombardment of
Bess Marine sediment with bremsstrahlung flux produced by 25
MeV
o
500
1000
1500
3000
2000
Channel number
2500
3500
electrons impinging upon a 6-mm thick tungsten converter. After an irradiation period of 6 h and a cooling off period of 15
h, the y-ray spectrum was accumulated of 20000
s. Peaks are labelled with y-ray energy in KeV and assigned a parent radionuclide (from [280]).
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