نتایج جستجو برای: radium equivalent activity
تعداد نتایج: 1262006 فیلتر نتایج به سال:
tember 1856. Salone is a pargana belonging to the Rae Bareli district in the south of the province of Oudh. The principal town of the same name contains some 5,000 inhabitants, and is on the road between Partabgurh (to which district the pargana at one time belonged) and Rae Bareli,?36 miles from the former1 and 20 from the latter. He was serving at this station when the mutiny broke out. He fo...
The radioactivity associated with artisanal and small-scale gold mining activities (ASM) carried out along the Ulindi River, in eastern Democratic Republic of Congo, was evaluated by gamma-ray spectrometry inductively coupled plasma–mass soil sediment samples. results revealed that activity concentrations 238U (up to 3127 ± 98 Bq kg?1), 226Ra 2710 89 kg?1) 232Th 2142 162 were 71- 89-fold higher...
Studies on naturally occurring radioactive material (NORM) in the limestone from the Margalla Hills have been carried out by measuring gamma activity and to access its radiological implications if any. For data acquisition, a High-Purity Germanium detector was employed. The activity concentrations of (226)Ra, (232)Th, and (40)K were found to be 14.32 ± 0.24, 2.05 ± 0.04, and 13.80 ± 0.20 Bq kg(...
An evaluation of the radioactivity levels associated with naturally occurring radioactive materials has been undertaken as part of a systematic study to provide a surface radiological map of the State of Kuwait. Soil samples from across Kuwait were collected, measured and analysed in the current work. These evaluations provided soil activity concentration levels for primordial radionuclides, sp...
The concentrations of naturally occurring radionuclides of Ra and Ra were determined in the groundwater samples in three areas near Riyadh city in Saudi Arabia. The waters of these areas are supplied for the city consumption. A total of thirty water samples of the three areas were analyzed for Ra and Ra. The concentration of Ra was found in the range from 2.1 – 6.3, 7.2 14.1 and 16.7 – 33.5 mBq...
Wheat is one of the world’s most commonly consumed cereal grains. It originates from a type grass (Triticum) that grown in countless varieties worldwide. Bread wheat or common primary species. Several other closely related species include durum, spelt, emmer, einkorn, and Khorasan wheat. In addition to being major source starch energy, also provides substantial amounts number components which a...
manner that a medical practitioner will have not only no difficulty in following the author, but also will positively enjoy reading him. The author first of all deals with the physics of radium: next the apparatus and means of application, then the sensitivity of the tissues to radium, and. proceeds to deal with malignant growths in various situations, which are suitable for radium therapy. The...
The discovery of radium by Madame Curie in 1898 opened up a field of physical research the limits of which it is impossible to see. Although it was found at an early stage that radium had a definite action upon living tissues, this appeared to be purely destructive, and it is only recently that the selective action of radium upon cancer cells has been adequately demonstrated. Depending as it do...
Following the increasing demand of coal for power generation, activity concentrations of primordial radionuclides were determined in Nigerian coal using the gamma spectrometric technique with the aim of evaluating the radiological implications of coal utilization and exploitation in the country. Mean activity concentrations of 226Ra, 232Th, and 40K were 8.18±0.3, 6.97±0.3, and 27.38±0.8 Bq kg-1...
Radium has been described (I have forgotten by whom,) as the most potent element which has been yet discovered for the production of discontent in the medical profession. It was hailed at first as a panacea for all ills. Although it has not fulfilled the hopes based upon it by those early enthusiasts, it has opened up new fields in the treatment of disease, especially malignant disease, but eve...
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