نتایج جستجو برای: radium equivalent activity

تعداد نتایج: 1262006  

Journal: :IOP conference series 2023

Abstract The aim of the present study is to assess some radiological hazard risk parameters such as annual effective dose (AED), Fatal Cancer Risk (FCR), Hereditary (HCR), radium equivalent (Ra eq ), and Internal index (H in ) due specific activity 238 U, 232 Th, 40 K samples date Al-Qasim subdistrict, Babylon governorate. was measured using gamma-ray spectroscopy with NaI(Tl) doctor. average v...

Journal: :Environmental science. Processes & impacts 2014
Saifeldin M Siddeeg Nicholas D Bryan Francis R Livens

The spatial distribution of (238)U-series radionuclides, specifically 238U, 234U, 230Th and 226Ra, has been determined in stream sediments from Edale, Derbyshire, United Kingdom, to explore the behaviour of U-series radionuclides during weathering. For uranium and thorium, two different extraction methods were used, total dissolution with HNO3/HF in a microwave and leaching with aqua regia. Thi...

Journal: :Journal of Pharmaceutical Negative Results 2022

In this study, measurement of alpha emitters such as radon-222, radium-226, and uranium-238 levels in Iraqi medical plants samples using CR-39 detector. As well as, annual average internal dose (AAIED) risk an excess cancer fatality per million persons (RECFPMP) due to ingestion radon, radium, uranium from the present study were calculated. The values with stander error activity unit Bq/kg 5.22...

2011
ISAAC LEVIN MICHAEL LEVINE

The insertion into an animal tumor of buried capillary glass tubes containing radium emanation presents a comparatively new departure in radium therapy and is undoubtedly destined to play a prominent part in the future development of the whole field of radiotherapeutics. The technique employed on animals and human beings is as follows: Radium emanation, the first active product of decomposition...

2007
M. Ngachin

A part of the survey programme on the evaluation of environmental radioactivity in Cameroon has just been initiated. The radioactivity level of soils in a volcanic area in Cameroon was determined and discussed. 30 soils samples were collected from Buea and Limbé cities located in the south-western Cameroon. These two regions are known for theirs volcanic grounds due to the presence of Mount Cam...

2006
V A Dzuba

The radium atom is a promising system for studying parity and time invariance violating weak interactions. However, available experimental spectroscopic data for radium is insufficient for designing an optimal experimental setup. We calculate the energy levels and transition amplitudes for radium states of significant interest. Forty states corresponding to all possible configurations consistin...

Journal: :Postgraduate medical journal 1961
A M JELLIFFE

THE first cure of skin cancer with ionizing irradiation was reported in I899. Within a few years the new rays had been tried out on many disease processes, including deep tumours. Cures of superficial, accessible cancers were reported in increasing numbers, but at the same time complications followed the use of the new rays. These included the production of cancer. By the 1930s radium and radon...

2016
Humphrey Milford

This little book gives a short account of cases treated by the author with radium in the hope that it may draw the attention of the general practitioner and student to the conditions in which this valuable therapeutic agent may be of use. The first portion of the work is devoted to a short summary of the physical problems connected with radium, including apparatus, screening, methods of applica...

2011
A. Binesh

The largest fraction of the natural radiation exposure we receive comes from a radioactive gas, radon and its decay products (nearly 50%). The radon gas can enter to the body via respiring, drinking and eating and caused damage to respiratory and digestion systems. Also radium-226 is widely distributed in the environment. When a person ingests radium, this element deposits in bones and cause to...

2018
John R Doyle Paul A Bottomley

The paper analyses two datasets of elite soccer players (top 1000 professionals and UEFA Under-19 Youth League). In both, we find a Relative Age Effect (RAE) for frequency, but not for value. That is, while there are more players born at the start of the competition year, their transfer values are no higher, nor are they given more game time. We use Poisson regression to derive a transparent in...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید