نتایج جستجو برای: radium equivalent activity

تعداد نتایج: 1262006  

Journal: : 2022

The research aims to evaluate the radioactivity of samples foodstuffs Consumables in local markets thirteen items were selected which are rice, tea, drinking water, lentils, chickpeas, flour, red bean, crushed chickpeas and milk powder where concentrations specific activity chains uranium (238U), thorium (232Th) potassium (40K) measured using a gamma ray spectra analysis system with high purity...

2014
Ajay Kumar Saurabh Narang

In the present investigation, soil samples were collected from 10 villages belonging to Pathankot district, Punjab, India and assessed for radium content using LR-115 plastic detector. The ‘track etch’ technique has been employed for measuring the radium content. From the radium content, radon exhalation rates and mass exhalation rates were calculated for these samples. The mass exhalation rate...

Journal: :IOP conference series 2022

Abstract Soil and sand samples were collected from eight different locations in the Al-Dakhiliya governorate, Sultanate of Oman to determine evaluate natural artificial radioactivity levels. The activity concentrations radionuclides 137 Cs, 226 Ra, 40 K, 235 U 228 Ac measured using high resolution gamma-ray spectroscopy detectors (HPGe detectors). In addition, radiation hazard indexes evaluated...

Journal: :Journal of the National Cancer Institute 2013
Mari I Suominen Jukka P Rissanen Rami Käkönen Katja M Fagerlund Esa Alhoniemi Dominik Mumberg Karl Ziegelbauer Jussi M Halleen Sanna-Maria Käkönen Arne Scholz

BACKGROUND Bone metastases are associated with increased morbidity and poor prognosis in breast cancer patients. Radium-223 dichloride is a calcium mimetic that localizes to bone, providing targeted therapy for skeletal metastasis. METHODS We investigated the mode of action of radium-223 dichloride using breast cancer cell, osteoclast, and osteoblast cultures as well as a mouse model of breas...

2018
Michel L Peters Claudine de Meijer Dirk Wyndaele Walter Noordzij Annemarie M Leliveld-Kors Joan van den Bosch Pieter H van den Berg Agni Baka Jennifer G Gaultney

BACKGROUND The treatment of metastatic castration-resistant prostate cancer has changed with the introduction of radium-223, cabazitaxel, abiraterone and enzalutamide. To assess value for money, their cost effectiveness in patients with metastatic castration-resistant prostate cancer previously treated with docetaxel from the Dutch societal perspective was investigated. METHODS A cost-effecti...

Journal: :Arabian Journal of Geosciences 2021

The present study involves the measurement of radionuclide contents and radon/thoron exhalation rate in soil samples collected from 30 villages Jammu district, J & K, India. Thallium-doped sodium iodide detector advanced Smart Rn Duo monitor were used for rates. radon flux was also measured by using a surface chamber technique. mass has been found to vary 15 ± 0.4 38 0.8 mBq kg?1 h?1, while tho...

2016
Ghazwa Alzubaidi Fauziah B S Hamid I Abdul Rahman

The activity concentrations of naturally occurring radionuclides 226Ra, 232Th, and 40K were determined in 30 agricultural and virgin soil samples randomly collected from Kedah, north of Malaysia, at a fertile soil depth of 0-30 cm. Gamma-ray spectrometry was applied using high-purity germanium (HPGe) gamma-ray detector and a PC-based MCA. The mean radioactivity concentrations of 226Ra, 232Th, a...

2009
A K Mahur Rajesh Kumar D Sengupta Rajendra Prasad

Chhatrapur beach placer deposit, situated in a part of the eastern coast of Orissa, is a newly discovered high natural background radiation area (HBRA) in India. The sand samples containing heavy minerals, were collected from Chhatrapur region by the grab sampling method at an interval of ~ 1 Km. Radon exhalation rates were measured by "Sealed Can Technique" using LR-115 type type II in the san...

Journal: :East African journal of science, technology and innovation 2023

Determination of radionuclide transfer from animal feeds to products and ingestion rates is important in assessing internal radiation risk humans who consume the products. Seventy-nine (79) pasture samples milk were collected cattle farms seven sub-counties. Activity concentrations radionuclides determined using gamma spectroscopy. Transfer ratios calculated. Ingestion cow also determined. Radi...

2016

publication of an up-to-date manual in a concise and convenient form, which should be in the hands of every practitioner. The more widely such knowledge is spread amongst the profession, the sooner will the day arrive when public opinion backed by the medical profession will demand a radium-institute in this country. Until that day arrives practitioners can only equip themselves to advise their...

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