Radionuclide

Radio isotopes: The help and the hurt Radio isotopes are used constantly in the medical and industrial world. They can be useful when diagnosing human and other animals with diseases, and in treating them for many diseases. However, the use of radioisotopes can increase the demand for nuclear power, and have many negative side effects on humans and other organisms. Many radio isotopes are relatively harmless in the body. They can be used to view the inside of your body, allowing doctors to…

Nuclear chemistry is unsafe and because the drawbacks outweigh the benefits, it should not be used in modern day technology and science. With its ability to remain for hundreds to thousands of years, and with no safe place to store it, it sucks up space and money. Additionally, the transplant of nuclear waste can be a mark for terrorism, making it even more unsafe. Nuclear, radioactive, radiation, nuclear waste; what do these words bring to mind? Most would think of a superhero, or a deformed…

The Radiological Dispersion Device A Radiological Dispersion Device (RDD) is a combination of conventional explosives (dynamite) and radioactive components (The U.S. Nuclear Regulatory Commission, 2014). A RDD is any device that causes the resolute diffusion of radioactive material without a nuclear detonation (REMM, 2016).Terrorist who have utilized RDDs have labeled them as dirty bombs (Ready, 2016). However, the United States military recognizes RDDs as Improvised Explosive Devices (IEDs)…

Radiation is often seen by individuals as a substance that is rare and uncommon. Others believe that it only comes from nuclear bombs. However, that isn’t the case. It is found in everything from the soils that people walk on every day, to the walls and floors inside their homes. There’s radiation found in food and water that are consumed by people on a day-to-day basis. It is found within the gases inside the Earth’s atmosphere, and from cosmic rays from space ("Radiation in Everyday Life").…

naturally occurring radionuclides in plants depend on their precipitation and adsorption with soil particles while concentration of radionuclides in soil decreases by a leaching process. Additionally,…

The Chernobyl Catastrophe and its Impact on the Environment Imagine New York City, a city bustling with life; busy streets, people flooding the sidewalks, flashing lights, and never ending noise. Now imagine a post-apocalyptic city; deserted streets, empty buildings, shattered windows, doors hanging from their hinges, weeds and overgrowth climbing up walls, and unsettling silence. This is how one may describe Pripyat, Ukraine. What was once a city filled with great activity and energy is now a…

Principle: By using a scanning device to detect positron (subatomic particles) emitted by the radionuclide in the organ or tissue being examined. A PET scan uses a radioactive drug (tracer) to show this activity. The radioactive drug may be injected, swallowed or inhaled, based on which organ or tissue is being evaluated by the PET scan. Positrons are emitted by a breakdown of the radionuclide then gamma ray is created and the scanner then detects the gamma rays a computer analyses the gamma…

Figure 5.8 is a pulse height spectrum of the net counts of the beta- emitting radionuclide, 137Cs as a function of pulse height voltage. Within Figure 5.8, the majority of the counts reside in the low voltage region, below 25 mV. It is possible to discriminate the between the different particle types by virtue of the pulse height distribution and establishing detection window threshold within the detection unit. As discussed earlier, it is possible to establish a lower threshold limit that…

Uranium was first discovered in 1789 by Martin Klaproth. It was formed in supernovas about 6.6 billion years ago. Uranium is one of the heavier elements on the periodic table, being 18.7 times as dense as water. It is element number 92 and this specific isotope has 235 nucleons. This indicates to us that Uranium 235 has 92 protons, 92 electrons, and 143 neutrons. Uranium’s slow radioactive decay is the main source of heat inside the earth, causing convection and continental drift. Uranium 235…

cells needs, the more the tracer will develop in that location. Next, the radionuclide within the tracer essentially undergoes beta positive decay, which signifies the emission of positrons. As a result, the creation of gamma rays will occur. Consequently, a computer will analyze the produced gamma rays and use the obtained information to produce an image map of the tissue or organ being studied. The amount of the radionuclide assembled in the tissue influences how brightly the tissue develops…