The Gamma-Rays Following the Decay of ¹⁷⁶Ta

Abstract

The gamma-rays following the decay of 8-hour ¹⁷⁶Ta have been investigated using scintillation technique. ¹⁷⁶Ta was produced by two, different procedures; first by a reaction ¹⁸¹Ta(p, 6n)¹⁷⁶W and electron capture decay ¹⁷⁶W→¹⁷⁶Ta, second by ¹⁷⁵Lu(α, 3n)¹⁷⁶Ta. The gamma-ray spectra, containing gamma-rays of up to ∼3 MeV, revealed to have very complex structure. The spectrum was decomposed into at least 23 gamma-rays using response functions of NaI(Tl) for mono-energic gamma-rays. Sum coincidence and ordinary coincidence measurements were performed.