06_Medical equipment based on ionizing radiation principle
... Acute dose … means a person received a radiation dose over a short period of time. Somatic effects … are effects from some agent, like radiation that are seen in the individual who receives the agent. Genetic effects … are effects from some agent, that are seen in the offspring of the individual who ...
... Acute dose … means a person received a radiation dose over a short period of time. Somatic effects … are effects from some agent, like radiation that are seen in the individual who receives the agent. Genetic effects … are effects from some agent, that are seen in the offspring of the individual who ...
NUCLEAR CHEMISTRY
... many or too few neutrons relative to the number of protons. • No amount of neutrons can hold a nucleus together once it has more that 82 protons. All of the elements with an atomic number greater than 82 have only unstable isotopes. • Unstable atoms emit energy in the form of radiation when they bre ...
... many or too few neutrons relative to the number of protons. • No amount of neutrons can hold a nucleus together once it has more that 82 protons. All of the elements with an atomic number greater than 82 have only unstable isotopes. • Unstable atoms emit energy in the form of radiation when they bre ...
Nuclear_Chem_016
... Though Uranium releases neutrons, a variety particles of radiation are released by other elements. These include alpha particles, protons, and negative beta particles (like electrons from the nucleus!). Pure energy can also be released in the form of gamma radiation. ...
... Though Uranium releases neutrons, a variety particles of radiation are released by other elements. These include alpha particles, protons, and negative beta particles (like electrons from the nucleus!). Pure energy can also be released in the form of gamma radiation. ...
2 α
... body’s metabolism and regulates other systems in your body. When iodine is ingested, most of it accumulates in the thyroid gland. Iodine-131 is a radioactive isotope of iodine that doctors use to treat diseases associated with this gland. Grave’s disease, an illness caused by an overactive thyroid, ...
... body’s metabolism and regulates other systems in your body. When iodine is ingested, most of it accumulates in the thyroid gland. Iodine-131 is a radioactive isotope of iodine that doctors use to treat diseases associated with this gland. Grave’s disease, an illness caused by an overactive thyroid, ...
Atomic nuclei: radioactivity and types of radiation
... low penetration power. Penetration power describes how easily the particles can pass through another material. Because alpha particles have a low penetration power, it means that even something as thin as a piece of paper, or the outside layer of the human skin, will absorb these particles so that t ...
... low penetration power. Penetration power describes how easily the particles can pass through another material. Because alpha particles have a low penetration power, it means that even something as thin as a piece of paper, or the outside layer of the human skin, will absorb these particles so that t ...
Radiation_What Is It
... of the proton rich atom. This positive electron is known as a positron. An additional particle, a neutrino, is also emitted from the nucleus. Neutrinos are very small particles with no electric charge. They have little or no mass and participate in weak interactions. ...
... of the proton rich atom. This positive electron is known as a positron. An additional particle, a neutrino, is also emitted from the nucleus. Neutrinos are very small particles with no electric charge. They have little or no mass and participate in weak interactions. ...
Nuclear Reactions - Manasquan Public Schools
... Because of their large mass and charge, alpha particles do not travel very far and are not very penetrating. • A sheet of paper or the surface of your skin can stop them. – But radioisotopes that emit alpha particles can cause harm when ingested. – Once inside the body, the particles don’t have to t ...
... Because of their large mass and charge, alpha particles do not travel very far and are not very penetrating. • A sheet of paper or the surface of your skin can stop them. – But radioisotopes that emit alpha particles can cause harm when ingested. – Once inside the body, the particles don’t have to t ...
A – Z - washburnsciencelies
... This occurs when two smaller nuclei combine together to form a single larger nuclei. This produces far more energy than a fission reaction, and also does not have a dangerous by-product. However we currently don’t have the means to use it as a reliable energy source, as we barely get more energy out ...
... This occurs when two smaller nuclei combine together to form a single larger nuclei. This produces far more energy than a fission reaction, and also does not have a dangerous by-product. However we currently don’t have the means to use it as a reliable energy source, as we barely get more energy out ...
atomic number.
... Lower Intensity: Gamma-rays injure cells by creating highenergy electrons throughout the body, charged particles which can disrupt any chemical bond they happen to encounter as they fly along. Electrons (positirons) are produced by the photoelectric effect, compton scattering or pair-production. ...
... Lower Intensity: Gamma-rays injure cells by creating highenergy electrons throughout the body, charged particles which can disrupt any chemical bond they happen to encounter as they fly along. Electrons (positirons) are produced by the photoelectric effect, compton scattering or pair-production. ...
Chapter 29
... • The emission of the electron is from the nucleus, which contains protons and neutrons • The process occurs when a neutron is transformed into a proton and an electron • The energy must be conserved: the energy released in the decay process should almost all go to kinetic energy of the electron (KE ...
... • The emission of the electron is from the nucleus, which contains protons and neutrons • The process occurs when a neutron is transformed into a proton and an electron • The energy must be conserved: the energy released in the decay process should almost all go to kinetic energy of the electron (KE ...
II. Basic Physics of Ionizing Radiation
... • Radioactive nuclei undergo disintegration at a rate that is proportional to the number of untransformed nuclei present. • The physical half-life is the time required for one-half of the remaining nuclei to transform. • The half-life is characteristic if the radionuclide. ...
... • Radioactive nuclei undergo disintegration at a rate that is proportional to the number of untransformed nuclei present. • The physical half-life is the time required for one-half of the remaining nuclei to transform. • The half-life is characteristic if the radionuclide. ...
Radioactivity
... particles in the smoke absorb some of the alpha particles. 4. This causes a decrease in the current that flows in the smoke detector and trigger the alarm. 5. Americium-241 has a long half-life, 460 years so that the substance will last longer. ...
... particles in the smoke absorb some of the alpha particles. 4. This causes a decrease in the current that flows in the smoke detector and trigger the alarm. 5. Americium-241 has a long half-life, 460 years so that the substance will last longer. ...
Notes for the Structure of Atoms (Chapter 4, Sect
... or more different nuclides. After radioactive decay, the element changes into a different isotope of the same element or into an entirely different element ...
... or more different nuclides. After radioactive decay, the element changes into a different isotope of the same element or into an entirely different element ...
Chapter 9 Nuclear Radiation 9.1 Natural Radioactivity Radioactive
... Alpha (α) particle is two protons and two neutrons. ...
... Alpha (α) particle is two protons and two neutrons. ...
Ch9
... Radiation Protection Radiation protection requires • paper and clothing for alpha particles. • a lab coat or gloves for beta particles. • a lead shield or a thick concrete wall for gamma rays. • limiting the amount of time spent near a radioactive source. • increasing the distance from the source. ...
... Radiation Protection Radiation protection requires • paper and clothing for alpha particles. • a lab coat or gloves for beta particles. • a lead shield or a thick concrete wall for gamma rays. • limiting the amount of time spent near a radioactive source. • increasing the distance from the source. ...
mass numbers
... P-32, a radioisotope used to treat leukemia, has a half-life of 14.3 days. If a sample contains 8.0 mg of P-32, how many milligrams of P-32 remain after 42.9 days? Step 1 State the given and needed quantities. Analyze the Problem. ...
... P-32, a radioisotope used to treat leukemia, has a half-life of 14.3 days. If a sample contains 8.0 mg of P-32, how many milligrams of P-32 remain after 42.9 days? Step 1 State the given and needed quantities. Analyze the Problem. ...
Appendix A Glossary of Nuclear Terms
... Nuclear Science—A Teacher’s Guide to the Nuclear Science Wall Chart ...
... Nuclear Science—A Teacher’s Guide to the Nuclear Science Wall Chart ...
Lab 77 Nuclear Radiation Detection
... are called radioisotopes. All elements with atomic numbers greater than 82 (and some with smaller atomic numbers) possess naturally radioactive isotopes. In addition, artificial radioactive isotopes can be created by bombarding certain stable isotopes with particles. To date, over 2,000 radioisotope ...
... are called radioisotopes. All elements with atomic numbers greater than 82 (and some with smaller atomic numbers) possess naturally radioactive isotopes. In addition, artificial radioactive isotopes can be created by bombarding certain stable isotopes with particles. To date, over 2,000 radioisotope ...
Balancing a Nuclear Equation
... sterilization by gamma radiation as opposed to other methods such as ethylene oxide gas. Advantages of gamma irradiation include speed, costeffectiveness, and the elimination of the need for special packaging. ...
... sterilization by gamma radiation as opposed to other methods such as ethylene oxide gas. Advantages of gamma irradiation include speed, costeffectiveness, and the elimination of the need for special packaging. ...
Chapter 3 Nuclear Radiation
... Positron (+) is a positive electron. Gamma ray is high-energy radiation released from a nucleus. ...
... Positron (+) is a positive electron. Gamma ray is high-energy radiation released from a nucleus. ...
Chapter 3 Nuclear Radiation
... Gamma Radiation In gamma radiation, • energy is emitted from an unstable nucleus, indicated by m following the mass number. • the mass number and the atomic number of the new nucleus are the same. ...
... Gamma Radiation In gamma radiation, • energy is emitted from an unstable nucleus, indicated by m following the mass number. • the mass number and the atomic number of the new nucleus are the same. ...
Radiation Questions March 4th
... Of the children that developed thyroid cancer, 64% lived in the areas most contaminated by the radiation. Considering this data, can you be certain that a child who developed thyroid cancer between 1986 and 1990 did so because of the Chernobyl explosion? Explain the reason for your answer. ...
... Of the children that developed thyroid cancer, 64% lived in the areas most contaminated by the radiation. Considering this data, can you be certain that a child who developed thyroid cancer between 1986 and 1990 did so because of the Chernobyl explosion? Explain the reason for your answer. ...
WIPO IPC: Internet Publication
... several of the classes in this section, in particular those of "measuring" in class G01 and "control" and "regulation" in class G05. Classification in this section may present more difficulty than in other sections, because the distinction between different fields of use rests to a considerable exte ...
... several of the classes in this section, in particular those of "measuring" in class G01 and "control" and "regulation" in class G05. Classification in this section may present more difficulty than in other sections, because the distinction between different fields of use rests to a considerable exte ...
Fallout shelter
A fallout shelter is an enclosed space specially designed to protect occupants from radioactive debris or fallout resulting from a nuclear explosion. Many such shelters were constructed as civil defense measures during the Cold War.During a nuclear explosion, matter vaporized in the resulting fireball is exposed to neutrons from the explosion, absorbs them, and becomes radioactive. When this material condenses in the rain, it forms dust and light sandy materials that resembles ground pumice. The fallout emits alpha and beta particles, as well as gamma rays.Much of this highly radioactive material falls to earth, subjecting anything within the line of sight to radiation, becoming a significant hazard. A fallout shelter is designed to allow its occupants to minimize exposure to harmful fallout until radioactivity has decayed to a safer level.