Abstract In this study, samples of building material additives were analyzed for naturally occurring radioisotope activity such as uranium, radium, and radon. The radon exhalation the annual effective doses, also calculated. activities samples, determined using HPGe gamma spectrometry ionization detector. results used to calculate dose values by RESRAD BUILD code. concentration ranges between 9...

abstract   background : the application of du emanation for first time contaminated certain areas in the south west region of iraq after the second gulf war (1991). these contaminated areas were discovered in 1994. radioactive contamination was detected using the nuclear enterprise pcm5/1 in soil samples collected from two regions near by grazing lands. this study was done for assessment of du ...

Background: Natural radionuclides in rock samples, primarily 238U (uranium), 232Th (thorium) and 40K (potassium), are the main source of radiation exposure to workers and general public and their measurement is of paramount importance from radiation protection point of view. Materials and Methods: Gamma spectrometry using HPGe detector was used to measure the radioactivity and assess the radiol...

The performance of the Radionuclide Aerosol Sampler/Analyzer (RASA) under high-activity conditions has been evaluated to maintain and protect operations International Monitoring System (IMS) radionuclide stations. Station measurements following Fukushima Daichi accident 11 March 2011 have combined with laboratory understand how quality made using RASA High-Purity Germanium (HPGe) gamma-spectrom...

Uranium is a rare earth element found in the earth’s crust with an average of 3 ppm. Natural uranium is a mixture of three radioactive isotopes U (99.27% abundance), U (0.72% abundance) and U (0.0054% abundance). It has been employed over the last seven decades as a source of energy and weapon. Enrichment processes were widely practiced to produce the necessary fuel. On the other hand, depleted...

Penelitian ini bertujuan untuk menentukan aktivitas spesifik 226Ra, 232Th dan 40K yang terdapat pada sampel fly ash, bottom tanah di sekitar PLTU industri gula. Masing – masing tiga ash diambil dari silo, Sembilan radius (0-4) km PLTU. Pencacahan dilakukan menggunakan spektrometer gamma dengan detektor HPGe. Sampel dicacah selama 17 jam, diolah software Maestro. Hasil penelitian menunjukkan bah...

The present study reports on the performance of three reactor-produced radionuclides (24Na, 56Mn, and 72Ga) one accelerator-produced radionuclide (56Co) for extending full-energy peak efficiency calibration a coaxial HPGe detector up to ~ 3100 keV at different source distances. differences between curves obtained with without use high-energy gamma emitters have considerable impact accuracy Na, ...