Ionizing radiation

The Atomic Bomb Lighting the Way for Radiation Protection Even though radiation has been around since the beginning of time there was little known about it. When x-rays were discovered in 1895, radiation research followed suit right after. With Germany under Hitler’s reign, the Nazis began separating uranium to form the first atomic bomb to control the world. The push for the United States to be the first with the atomic bomb began with this knowledge. With the help of several scientists…

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…

Interpretation of the NOESY: (Nuclear Overhauser Effect) spectrum of 1-(2-methyl-1,2,3,4-tetrahydroquinolin-4-yl)azepan-2-one (3a) is as follows. Strong coupling interaction of protons of 2nd and 4th position in 1-(2-methyl-1,2,3,4-tetrahydroquinolin-4-yl)azepan-2-one (3a), was not so strongly observed in COSY because it involves long range coupling i.e. protons attached between 2nd and 4th carbon atom. Hence, we studied NOESY to know the spacial interaction between these two protons. Thus, the…

Lasik surgery is the most common type of refractive surgery. The aimed result of the surgery is to refract light rays on the retina without damaging the surrounding cellular cells. Lasik surgery is a procedure that was developed to correct the vision problems of Nearsightedness, Long-sightedness and Astigmatism. Nearsightedness (myopia) is when you can see nearby objects clearly, but distant objects seem blurry. Long-sightedness (hyperopia) is when you can see distant objects clearly, but nearby…

Scientists use radiation in more forms than the average person realizes. With new technology these developments form new ways of living. Agriculture is not recognized as a big part in nuclear science. George de Hevesy was the first to practically use an isotope in 1911. We can thank him for the new advancements in fields of nuclear technology. The food you eat probably was altered using a form of neutron or gamma irradiation. Radioisotopes have changed the way we live, through all fertilizers,…

Radioiodine production Radioiodine is defined as a radioactive isotope of the chemical element Iodine. Although there are at least 37 different Iodine radioisotopes, only four of them are used as tracers or therapeutic agents in medicine; these are 123-I, 124-I, 125-I, and 131-I, with the latter being the most common in clinical practice. Essentially all industrial production of radioiodine isotopes involves four aforementioned radionuclides. History of radioiodine production and usage The…

PET is a nuclear medicine, working imaging ability that creates a three-dimensional image of functional processes within the human body. [1] First, chemicals which emits gamma radiation are injected into the human body, then; the system detects pairs of gamma rays emitted indirectly by a tracer to show images of bones and organs. These substances are injected into the body, and are usually tagged with a radioactive atom.[1] Doctors use this device to create images of bones and organs of the…

contraindication of contrast media In the radiation they are using many tints , e.g. barium also We are using in the nuclear medicine and it’s called radiopharmaceuticals such as Carbon-11 , Chromium-51 , Fluorine-18FDG , Gallium-87 , Gallium-86 citrate , Technetium-99 , Iodine-123 and Iodine-131 . there are all these different uses pigments have benefits and harm . Firstly , we will talk about Iodine-123 is used to diagnoses the patients . It use for routine scan the time of…

with radiation (Appendix 16) and instructions for collecting and shipping specimens for laboratory testing by urine bioassay (Appendix 17a for distribution outside VDH, Appendix 17b for distribution within VDH). For clinical management and care of patients with significant radiation exposure or contamination (≥ 1000 times background), DRH may refer healthcare providers, through the LHD Director, to REAC/TS. REAC/TS provides 24-hour clinical consultation for the medical management and radiation…

X-rays are a very powerful and valuable technique that can provide important and lifesaving information. Fluoroscope, is an x-ray device that allows physicians to view live images inside the human body that are projected onto a viewing monitor during a diagnostic and intraoperative procedures. This machine uses X-rays to give real-time video images on the area of interest making it possible to see internal organs in motion such as blood flow and catheter insertion. A Fluoroscopy captures these…