نتایج جستجو برای: radioactive decay

تعداد نتایج: 93363  

Journal: :زمین شناسی اقتصادی 0
مصطفی اسماعیلی وردنجانی رضا شمسی پور دهکردی کاوه پازند داود رهی

groundwaters hydrochemistry of ayrakan and cheshmeh shotori areas and geochemistry of rare earth elements, indicate ayrakan alkali granite as the origin of uranium and other dissolved elements in groundwaters of these areas. geochemical and hydrogeochemical studies as well as the trend of uranium and thorium transition and mobility in aqueous environments of these areas indicate uranium adsorpt...

Journal: :Journal of Physics: Conference Series 2021

Mutiple experimental results indicate the existence of cosmophysical effects which influence parameters nuclear decays and chemical reactions in lab. conditions. In particular, variations nucleus alpha-,beta-decay with amplitudes order $10^{-3}$ periods one year solar day were detected. Significant activity on decay reaction also was reported. We argue that such deviations from radioactive law ...

Journal: :iranian journal of radiation research 0
g. hodolli institute of occupational medicine, radiation protection service, obiliq 15000, kosovo sadik bekteshi university of prishtina, department of physics, pristine 10000- kosovo s. kadiri institute of occupational medicine, radiation protection service, obiliq 15000, kosovo b. xhafa university of prishtina, department of physics, pristine 10000- kosovo k. dollani university of tirana, faculty of natural science, tirana, albania

background: in this study are submitted the radon concentration measurement results of four underground mines: stanterg, artana, hajvali and badovc, which are owned by trepça enterprise, kosovo. the mines have the same geological formation and from these mines are extracted ores rich with lead, zinc, silver, and gold. the radiation exposures caused by radon and radon daughters was determined an...

Journal: :Physical Review C 2022

The β-decay scheme of Te138 and the level structure I138 is reported for first time. experiment was performed at Radioactive Isotope Beam Factory RIKEN, as one EUROBALL-RIKEN Cluster Array campaigns. Secondary radioactive ions, including Sb138, were produced by in-flight fission a U238 beam with energy 345 MeV per nucleon. From β decay Te138, supplemented new spin parity assignments, such low-l...

2002
Jesper Sollerman

At late phases the powering of supernova light curves is often provided by the decay of radioactive elements synthesized in the explosions. This is unambiguously revealed when the light curve decline follows the half life time of the decaying elements, and the bolometric luminosity then directly provides the mass of ejected radioactive material. I will focus on the best observed element, Ni, an...

2009
Christopher G. Worley

Energy dispersive X-ray fluorescence (EDXRF) is a rapid, straightforward method to determine sample elemental composition. A spectrum can be collected in a few minutes or less, and elemental content can be determined easily if the detector has adequate energy resolution. Radioactive alpha emitters, however, emit X-rays during the alpha decay process that complicates spectral interpretation. Thi...

B. Xhafa, G. Hodolli, K. Dollani, S. Kadiri, Sadik Bekteshi,

Background: In this study are submitted the radon concentration measurement results of four underground mines: Stanterg, Artana, Hajvali and Badovc, which are owned by Trepça Enterprise, Kosovo. The mines have the same geological formation and from these mines are extracted ores rich with lead, zinc, silver, and gold. The radiation exposures caused by radon and radon daughters was determ...

Ali Pazirandeh Meysam Mohammadnia Mohammad Hassan jalili bahabadi

The present work investigates an appropriate way to calculate the 1700 atomic density changes in the reactor operations. To automate this procedure, a computer program has been designed by C#. This program suggests a way to solve this problem which is based on the solution system of differential equations (Bitman) that it is designed according to Runge-Kutta Fehlberg method. The designed softwa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1387

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