background: the monte carlo (mc) method is not only used for dose calculations around brachytherapy sources but also for benchmarking treatment planning systems (tps) calculations. materials and methods: three 60co sources of gzp6 brachytherapy unit were simulated using mcnp4c mc code. the radial dose functions were calculated by mc method and gzp6 tps and were compared. results: there was a go...

Passive γ-ray spectroscopy is a useful technique for surveying the radioactive wastes and spent nuclear fuels under decommissioning. However, this method depends on material properties such as activity, density, element, scale, (especially) low-energy γ rays from 235U 239Pu. The γ-decay lines of 134Cs, 137Cs, 60Co, 154Eu occur at greater energies (than those 239Pu), these nuclides provide signi...

background: 7-lif: mg,cu,p (gr-207a) is one kind of thermo-luminescent dosimeters (tld) which can be used in diagnostic radiology and radiotherapy applications. because of having suitable properties such as good sensitivity, small size and being tissue equivalent, thermo-luminescent dosimetry has been one of the most important techniques in medicine over many years. choosing a correct energy fo...