Chapter 1 From X-Rays to Ion Beams: A Short History of Radiation Therapy James M. Slater Abstract Radiation therapy (RT) developed in several eras. Patients’ needs for more effective treatment guided the efforts. The development of ion beam therapy (IBT) can be seen as a corollary in this continuous endeavor to optimize disease control while minimizing normal-tissue damage. It could not have materialized‚ however‚ without the curiosity‚ ingenuity‚ and perseverance of researchers‚ engineers
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The Effects of Radiation on Cancer There are both negative and positive effects of radiation on cancer. Scientists have discovered that radiation can lessen or increase the chance of obtaining cancer. Radio therapy is a treatment for cancer in which X-rays employ controlled exposure to radiation. Radiation also can save lives. The negative effects on humans are that if over exposed to it‚ it can cause migraines‚ seizures‚ and ultimately‚ death. Firstly‚ external beam radiation therapy used on
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Acute Radiation Syndrome Acute radiation syndrome which is also sometimes known as radiation sickness or radiation toxicity is an extremely serious illness that occurs when the entire body (or most of it) receives a high dose of penetrating radiation‚ a dose greater than 50 rads‚ in a very short period of time. Studies in animals and humans exposed to radiation have allowed researchers to describe acute radiation syndrome. The most replicative cells are the most sensitive to the acute effects
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purpose of this lab was to see if radiation has an effect on the cultivated radish seeds that we used. From the observed data that we collected‚ we were able to conclude that when seeds are exposed to radiation‚ it affects how they grow‚ if there is any growth at all. Introduction Radiation is an important environmental abiotic factor for plants‚ and one small section of the electromagnetic radiation spectrum‚ is called the Photosynthetically Active Radiation (PAR)‚ provides the energy to
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the cellular structure. Ionizing radiation causes atoms and molecules to become ionized or excited. These excitations and ionizations can: * Produce free radicals. * Break chemical bonds. * Produce new chemical bonds and cross-linkage between macromolecules. * Damage molecules that regulate vital cell processes (e.g. DNA‚ RNA‚ proteins). The cell can repair certain levels of cell damage. At low doses‚ such as that received every day from background radiation‚ cellular damage is rapidly
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PHY 114: General Physics Laboratory Lab 1: Absorption of Nuclear Radiation 09/04/13 Abstract Nuclear physics was practiced to find the value of tau. After 8 trials of using a G-M counter and 8 different mass thicknesses of polyethylene‚ a graph was formed and tau was calculated to be 0.1931 cm^2/g‚ an error of 3.57% from the accepted value of 0.2 cm^2/g. Experiment was also used as an intro to using basic lab equipment‚ computer programs and calculating errors. With many different
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Opportunities such as surgery‚ medicine treatments‚ and multiple therapy options. Radiation therapy has impacted many people’s lives just in the last few years. Cancer patients especially‚ have been given another chance at life through a few treatment rounds. In the past to remove cancerous tumors and small masses‚ surgery was the only option to improve those patients lives; with advances in technology and medicine‚ radiation therapy has become a very likely option for these patients. An option that
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Uses of Radiation in the Medical Industry Although scientists have only known about radiation since the 1890s‚ they have developed a wide variety of uses for this natural force. Today‚ to benefit humankind‚ radiation is used in medicine‚ academics‚ and industry‚ as well as for generating electricity. In addition‚ radiation has uses in such areas as agriculture‚ space exploration‚ law enforcement‚ geology and many others. However‚ in the medical industry‚ radiation is used for x-rays‚ therapeutic
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treatment with radiation I am for the use of radiation because it can be used in many good ways. My sub group is medicine. I am researching a radiation treatment used for helping cancer patients. This is a good use of radiation because it kills the cancer cells and may even cure the cancer. It doesn’t always cure it but it will slow the process down. One reason radiation therapy is used‚ is to destroy the cancer cells. It is also for shrinking tumors. Tumors are mostly cured by the radiation. It can also
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The Effect of Radiation in Inducing Mutation On the Growth of Zea mays1 Milanie Joy S. Baradi BIO 30 Section S-1L October 10‚ 2011 ____________________ 1A scientific paper submitted in partial fulfillment of the requirements in Biology 30 laboratory under Professor Neilyn O. Villa‚ 1st semester‚ 2011-2012. ABSTRACT To determine the effects of gamma radiation in inducing mutation on the growth of corn (Zea mays)‚ an experiment using corn seeds exposed in to different
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