X-ray fluorescence

One example of a gastric emptying study is an operation that is done by nuclear medicine physicians using radioactive chemicals that examines how fast the food leaves the stomach and goes to the small intestine. Gastric emptying studies are used for checking patients who are experiencing signs of slow and, less commonly, rapid emptying of the stomach. Some signs to watch for are low energy levels, nausea, and heartburn. During a gastric emptying study, the patient eats a meal where the food in…

form of x rays and gamma rays. It is transmitted from one place to another. Ionizing radiation is high energy waves that pass the body's tissue, that produces positive and negative charged particles. These high energy waves remove electrons from atoms and cause an interaction between the x rays and the patient. This process is referred to as ionizing radiation. The amount of energy acquired from ionizing radiation is absorbed into the patients tissues. The interaction between the x rays and the…

X-radiations (X-rays) are electromagnetic radiation that is utilised in performing radiographs; radiography is an imaging technique that utilises X-rays to generate a view of the internal anatomy of an individual (National Institute of Biomedical Imaging and Bioengineering 2017). The use of dental X-rays play a fundamental part in every dental clinic in terms of assisting dental professionals in diagnosing a condition, aiding in highlighting and providing early intervention for various dental…

isotope of the artificially and it has many characteristics for nuclear medicine scan the first one it has a half-life of six hours and it decay by process called “ isomeric ” and emit low energy of gamma rays and this helps to easily exit the body and can be detected accurately also emit beta rays but without high energy radiation dose to the patient is low . It has different number of compounds created for various structures such as CNS imaging it use Tc-99 ECD , bone imaging it use Tc-99…

periods, emission of radioactive particles into the atmosphere, and negative side effects from its many medical uses. Radioactive particles vary in strength, alpha particles, for example, are able to pass through sheet of paper. On the other hand, gamma rays are about to pass through solid lead (6 inches) or concrete (6 feet). By analyzing the human eye, scientists were able to develop a highly accurate system for identifying the age of a corpse. This method calls of the use of radioactive…

To understand radiation safety, one must first be familiar with the term radiation. Simply put, radiation may be defined as energy traveling through space as waves or high speed particles. There are two types of radiation, ionizing and non-ionizing (e.g. Heat, visible light), they are differentiated by how they interact with matter. Non- ionizing radiation is essential to life, but excessive exposures can cause tissue damage. Ionizing radiation has sufficient energy to ionize atoms and…

of radiation that they must shield. These include scattered radiation from the patient, primary radiation for the x ray beam and leakage radiation from the x ray tube. All x ray tubes have some radiation leakage. On average, it is about 2-3mm of lead in the housing of the x ray tube. Traditionally lead has been used as the element of choice when shielding against x-rays and gamma rays. This is because “lead is a soft, malleable, and corrosion-resistant material” (Jaquith,…

scans, X-rays, and MRIs? The discovery and research of radioactive isotopes and radiation had a major impact on the creation of more elements and the grand advances in the science and medical fields. Of these advancements some of the most prominent uses of these technological advancements is the use of CAT scans, X-rays and MRI. Which are all used to get a better look at the insides of the human body, and to further diagnose serious problems, and reduce recovery times on surgeries. The X-ray…

Kanamycin sulphate and rifampicin were purchased from Hangzhou Dayangchem Co., Ltd., Zhejiang, China. Acetonitrile and ethanol (High performance liquid chromatography, HPLC, grade) were purchased from Merck, Germany. Sodium dihydrogen phosphate, phenylisocyanate, triethylamine, orthophosphoric acid (analytical reagent grade) and silicone oil (viscosity 10 cSt) were purchased from Sigma–Aldrich, St. Louis, USA. Size 3 hard gelatin capsules were kindly donated by Capsugel Co., Ltd., Tokyo, Japan.…

Computed Tomography A CT scan is produced using plenty of x-ray images from lots of different angles using computerized axial tomography (cat). It produces cross-sectional images or slices of bones, tissues and the angio portion which is produced through a CTA (cat scan angio) allows professionals to view the blood vessels. It is a great medical tool, with interesting history and of course like everything else in the worldwide medicine, it has its pros and cons. A Computed Tomography scan is a…