Compton Suppressed Spectrometry (CSS) provides a method to improve the peak-to-background ratio, and consequently counting statistics limit of detection. The NCSRD Fusion Technology Group CSS system consists NaI detector coupled 40% HPGe. an annulus, surrounding HPGe, plug, which can be removed for sample positioning, offering 4π detection geometry. signal processing chain configuration allows ...

Future experiments on hypernuclear high-resolution γ-spectroscopy with high-purity germanium detectors with the FINUDA apparatus at the DAΦNE accelerator and with the PANDA apparatus at the FAIR facility require the operation of these detectors in high magnetic fields (B ≈ 1T). VEGA and Euroball cluster HPGe detectors were tested in the field provided by the ALADiN magnet at GSI. A small degrad...

K-shell fluorescence yields of low, medium Z and rare earth elements were determined using Si(PIN) detector and HPGe detector employing reflection geometry set up. Target atoms were excited using 59.5 keV gamma rays emerging from Am-241 source of strength 300 mCi. Background radiation and multiple scattering effects were minimized by properly shielding the detector. The elemental foils of unifo...

background: human activities such as mining enhance the radioactivity levels above normal background which can lead to an incremental increase in the radiation risk to the population. materials and methods: 20 tailing enriched soil samples collected around maiganga coal mine, gombe, northeast nigeria were assessed for their 226ra, 232th and 40k contents using hpge gamma-ray detector. results: t...

to assess the environmental radioactivity levels and hence to determine the population exposure in kutubdia island, bangladesh the sediment samples were analyzed by using gamma ray spectrometry. in those sediment samples the average activity concentration of natural radionuclides 238u, 232th and 40k were found 15.39±1.67, 38.35±0.76 and 475.51±21.15 bq/kg respectively. the activity concentratio...

The challenge of achieving high resolution in binary reactions involving an outgoing high-energy neutron is solved by detecting the γ-ray decay of populated excited states in an array of escape-suppressed HPGe detectors in coincidence with fast neutrons. The selectivity of the arrangement is of the order of 1 in 1000 and is demonstrated by L = 0 two-proton stripping to 7/2− 2p-1h levels using t...

The Heidelberg Dark Matter Search (HDMS) is an experiment designed for the search for WIMP dark matter. It is using a special configuration of Ge detectors, to efficiently reduce the background in the low-energy region below 100 keV. After one year of running the HDMS detector prototype in the Gran Sasso Underground Laboratory, the inner crystal of the detector has been replaced with a HPGe cry...

The movement or storage of containers of radioactive waste requires characterization of the contents for radioactivity to verify conformance with transportation and waste acceptance controls. Spectroscopy of the emitted gamma rays is often the only viable method of assay of the contents. The spectrum analysis must include suitable efficiency, attenuation and geometry corrections for bulk contai...