Ionizing radiation Essays

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    Any organisational function that uses ionizing radiation is subject to safety requirements to ensure the protection of people who could be exposed as a result of the function. The requirements applied in Australia originate from the Basic Safety Standards (BSS) for Protection against Ionizing Radiation and for the Safety of Radiation Sources, issued by the International Atomic Energy Agency, as Safety Series 115. The standards stipulate requirements for notification of the Regulatory Authority of

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    Distinction must be drawn at this point between ionizing and nonionizing radiation especially with regard to their interaction with biological systems. Ionizing radiation has the ability to damage components of cells. Nonionizing radiation, on the other hand, such as radio waves and microwaves do not have similar capabilities and can at best cause heating of tissues. This claim though has been seriously doubted after a thorough scientific scrutiny, as we shall see later. Electric fields are easily

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    Radiation can be defined as the energy travelling through space which comes from a source and may be able to penetrate various materials. There are two types of radiation and they are the non-ionizing and ionizing radiation. Non-ionizing radiation consists of light, radio and microwaves. Whereby ionizing radiation can produce charged particles in matter, and ionizing radiation is produced by unstable atoms. The difference between unstable atoms and stable atoms is that unstable atoms have an excess

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    radioactive medication known as radiotracers or radiopharmaceutical (Understanding nuclear medicine, 2009). Radiotracers are given to the patient through injection, swallowing or inhalation, which makes the body radioactive for a short time. The radiation is detected by a special camera, and then the image is produced. (Cain, 2013) NM is used to treat and diagnose diseases by looking to the physiology of the body (Understanding nuclear medicine, 2009). NM includes Single Photon Emission Computed Tomography

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    Lab 6: Radioactivity

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    Physics 132 Hasbrouck 212 Cassidy Grace Lab 6: Radioactivity Abstract In this experiment we studied the strength of radioactive elements using the properties of ionizing radiation. The sources we used in this experiment are alpha, beta, and gamma radiation. We also studies the principles of the Rutherford experiments in that the nucleus was found to be very small because the forces that hold it together and also that the protons and the neutrons reside in the nucleus. Through this we also learned

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    Over the years there have been concerns about the effects of workplace radiation on the health and safety of workers. As a result in Australia, as in most developed countries, legislation and regulation has been developed to provide structure and guidelines for the control of radioactive substances, radioactive sources and radiation apparatus. These Acts include procedures to prevent or limit the hazards associated with radiation for the occupational users and the general public. The regulations place

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    essay I will be talking about X-rays.I will also talk about how pneumonia is able to be treated by X-rays. X-rays are a kind of radiation called electromagnetic waves. X-ray imaging forms images of the inside of a human body. The picture will show the part of your body in various shades of black and white. This is a result of various tissues taking in various amounts of radiation. Calcium in bones take in X-rays the most, so bones look white. Fat and other soft tissues take in less, and look grey. Air

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    Effects of Linus Pauling As a result of Linus Pauling’s research and discovery of quantum mechanics, scientists have developed new cures and “small” sciences. Linus Pauling invented oxypolygelatin, this substance is known as a synthetic blood plasma to be used in emergency transfusions for bad injuries in combat times (Linus Pauling, 6). He also invented the oxygen detector, this device checked oxygen levels in submarines, airplanes, and several medical environments (Linus Pauling, 6). A theory

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    MRI Vs X-Ray Scan Essay

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    be understood and can be visually determined. With that being said one major difference in the way that the two techniques obtain their images is the use of radiation. In an X-ray scan the use of gamma radiation helps with being able to obtain an image of an internal structure of the body. Whilst an MRI scan will use magnetic radiation to achieve the same goal. Therefore X-rays scan are more favourable when it comes to determining bone injuries and MRI scan are favourable

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    Japan was planning on surrender, before the bomb was dropped. One reason was, Japan was getting ready to negotiate a peace settlement, yet Truman still decided to drop the bomb. The U.S. saw they were going to surrender (they knew). The U.S. was able to set up spying devices, and were able to hear some of the plans Japan was negotiating. Moreover, Japan’s not the reason this war started, yet two of their cities were obliterated, and many civilians died for doing nothing. Even Japan knew they were

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    Pyrene Case Study

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    Pyrene is a good luminescent probe as it can undergo fluorescence that has a long lifetime, 1/2  100 ns, and its fluorescence is highly dependent on the polarity of the solution it is in. Pyrene’s emission spectrum can provide information about the microenvironment it is in. The molecule is a rather large elongated pi-conjugated system, making it nucleophilic and impossible for it to have any affinity to a charged surface such as silica. Figure 1: Emission spectrum of small pyrene concentration

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    Steven Spielberg Impact

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    “The most amazing thing for me is that every single person who sees a movie, not necessarily one of my movies, brings a whole set of unique experiences. Now, through careful manipulation and good storytelling, you can get everybody to clap at the same time, to hopefully laugh at the same time, and to be afraid at the same time” (“Steven Spielberg Quotes”). As the inspiration for how many films are produced, Steven Spielberg is a director, producer, and writer. Having won 3 Academy Awards, several

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    advances, doctors can identify diseases before they become a problem and treat them effectively. “Disease is a biological process, and nuclear medicine provides images of these processes.” Most radiotracers interact with a biological process and emit radiation. Detector systems collect these signals, and computer programs rebuild them into diagnostic images. Nuclear medicine differs from other imaging techniques which visualize structure and shape (anatomy) versus a biological process (physiology)(U.S

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    Introduction Radiolabel can be called radiotracer marker or radioactive pharmaceutical agent which is commonly used in therapeutic or diagnostic purpose. Radiolabel applied on white blood cell has different procedure and precautions as well as different diagnostic area in hospital. Radiolabel which applied in clinical practice is on certain type of cells which are red blood cell, white blood cell and platelet. The radioactive agent commonly used to radiolabel the white blood cell include 99mTc

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    home after the nuclear testing was complete. Little did they know; the levels of radiation would still be too high for the land to be inhabited for years to come. Once they returned home, they were forced to evacuate once again. Shortly after “Bravo” was detonated, 51 people were affected by the blast, some being over 100 miles away from the explosion. They had to be evacuated and treated for symptoms of acute radiation sickness including nausea, vomiting, skin burns, and hair loss.4 “After the “Bravo”

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    Nonmelanoma Skin Cancer

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    Background. Over the past decade there has been an increase in awareness of the negative results of ultraviolet radiation. In the past, the most common way to avoid ultraviolet radiation was the use of topical sunscreens. When a person gets ready sunscreen isn’t the first item they think of. Clothing is considered a necessity for survival, but due to the rise of cancer manufactures have found a way to reduce the exposure of UVA and UVB on the skin with everyday wear. In professional journals, it

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    This paper accounts to unfold the different dimensions of quantum mechanics as well as it tries to throw light on the different theories regarding nuclear physics. Special care has been taken to enlighten on the use of nuclear physics in the field of medical science and modern health care. To meet the energy need of today we need an alternative source which should be perfect from each and every angle and that could be done by the blessings of nuclear physics that is by virtue of the nucleosynthesis

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    1 The hydrogen atom has one electron which can occur in 3s, 3p and 3d and since it is one electron it experiences the same nuclear charge (full nuclear charge). The effective nuclear charge felt by more than one electron in an orbital is not the same. This is due to electrons have the same charges, thus repel each other and shield the nucleus. Helium has two electrons; hence electrons repel each other and shield the nucleus. Additionally, the 1s orbital is close to the nucleus as compared to 3s

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    It is an isotope of the artificially-produced element technetium and it has ideal characteristics for a nuclear medicine scan. It has a half-life of six hours which is long enough to examine metabolic processes but short enough to minimize the radiation dose. It decays by isomericly which emits gamma rays and low energy electrons. The low energy gamma rays it emits easily escape the human body and are accurately detected by a gamma camera. The chemistry of technetium is so versatile it can form

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    the lowest possible shell orbit to the nucleus due to containing very little energy). (see bibliography: Smith, R. (2010). ‘Conquering Chemistry: HSC Course’. P.224) As this diagram shows, these ground state atoms, may absorb the electromagnetic radiation, or bands of visible light as energy given by certain wavelengths

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