Medical Physics - University of Waterloo
... PHYS 383: Applications of physics in medicine (offered at the University of Waterloo from Jan 2015) Course Description: ...
... PHYS 383: Applications of physics in medicine (offered at the University of Waterloo from Jan 2015) Course Description: ...
National Diagnostic Reference Levels Factsheet
... ARPANSA, in collaboration with other stakeholders, has developed the National DRL Service which facilities can use to compare their doses with the national DRLs and from which dose data will be used to develop and update national DRLs. Due to its significantly higher population dose contribution, th ...
... ARPANSA, in collaboration with other stakeholders, has developed the National DRL Service which facilities can use to compare their doses with the national DRLs and from which dose data will be used to develop and update national DRLs. Due to its significantly higher population dose contribution, th ...
Society of Nuclear Medicine
... standard views: anterior view, a left anterior oblique (LAO) view to optimize visualization of the septum (usually 45°) and left lateral view (preferably recorded with the patient in the right lateral decubitus position to minimize attenuation from the abdomen). Image acquisition should commence as ...
... standard views: anterior view, a left anterior oblique (LAO) view to optimize visualization of the septum (usually 45°) and left lateral view (preferably recorded with the patient in the right lateral decubitus position to minimize attenuation from the abdomen). Image acquisition should commence as ...
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 ...
ACR Practice Guideline for Diagnostic Reference Levels in Medical
... an investigation level to identify unusually high radiation doses or exposure levels for common diagnostic medical X-ray imaging procedures [1-3]. Reference levels are based on actual patient doses for specific procedures measured at a number of representative clinical facilities. The levels are set ...
... an investigation level to identify unusually high radiation doses or exposure levels for common diagnostic medical X-ray imaging procedures [1-3]. Reference levels are based on actual patient doses for specific procedures measured at a number of representative clinical facilities. The levels are set ...
ppt-nuclear - SandersScienceStuff
... ejected when a neutron decays to a proton and an electron. The proton stays in the nucleus and the electron is the beta particle. Beta emission is a constant flow of quick moving electrons that can be stopped by a metal foil. As a result of beta decay the atomic number increases by one. The mass num ...
... ejected when a neutron decays to a proton and an electron. The proton stays in the nucleus and the electron is the beta particle. Beta emission is a constant flow of quick moving electrons that can be stopped by a metal foil. As a result of beta decay the atomic number increases by one. The mass num ...
Chapter 37
... • Important factors for stable isotopesnuclear stability correlates with: – Ratio of neutrons to protons in the isotope. – Nuclei with large number of protons (84 or more) tend to be unstable. – The “magic numbers” of 2, 8, 20, 50, 82, or 126 help determine stability. These numbers of protons or ne ...
... • Important factors for stable isotopesnuclear stability correlates with: – Ratio of neutrons to protons in the isotope. – Nuclei with large number of protons (84 or more) tend to be unstable. – The “magic numbers” of 2, 8, 20, 50, 82, or 126 help determine stability. These numbers of protons or ne ...
Investigations of vascularisation and blood flow at the
... sensitive to allow the detection of single particles. A typical intensity plot for a normal region of tissue is shown in Fig. 1. The absence of flow above the calcified zone is immediately apparent and the distribution of fluorescence correlates well the capillary density observed in histological secti ...
... sensitive to allow the detection of single particles. A typical intensity plot for a normal region of tissue is shown in Fig. 1. The absence of flow above the calcified zone is immediately apparent and the distribution of fluorescence correlates well the capillary density observed in histological secti ...
Atomic/Nuclear
... An unstable proton to neutron ratio causes an elevated energy level in the nucleus. When a nucleus undergoes radioactive decay it lowers its energy level by giving off radiation. Radiation given off by naturally radioactive atoms, are either particles, particles or gamma rays. Alpha particles ar ...
... An unstable proton to neutron ratio causes an elevated energy level in the nucleus. When a nucleus undergoes radioactive decay it lowers its energy level by giving off radiation. Radiation given off by naturally radioactive atoms, are either particles, particles or gamma rays. Alpha particles ar ...
entc 4390 medical imaging
... Gamma rays are emitted due to electrons making transitions to nuclear energy levels. ...
... Gamma rays are emitted due to electrons making transitions to nuclear energy levels. ...
Radioactivity - Teach Nuclear
... Most penetrating form Highest frequency and shortest wavelength in the electromagnetic spectrum Produced when the nucleus of an atom is in an excited state and then releases energy, becoming more stable When a nucleus emits an or β particle, the daughter nucleus is sometimes left in an excited sta ...
... Most penetrating form Highest frequency and shortest wavelength in the electromagnetic spectrum Produced when the nucleus of an atom is in an excited state and then releases energy, becoming more stable When a nucleus emits an or β particle, the daughter nucleus is sometimes left in an excited sta ...
Radioactive decay of nucleus
... 7. In an experiment, a researcher studied the decay of Po-210, which decays by the alpha emission and releases a stable Pb-206 atom. The half-life of Po-210 is 138.4 days. The mass of the Po-210 sample at the start of the experiment was 34.0g. (a)Write an equation for the alpha-decay of Po-210 (b)Wh ...
... 7. In an experiment, a researcher studied the decay of Po-210, which decays by the alpha emission and releases a stable Pb-206 atom. The half-life of Po-210 is 138.4 days. The mass of the Po-210 sample at the start of the experiment was 34.0g. (a)Write an equation for the alpha-decay of Po-210 (b)Wh ...
Radioactive Elements (pages 139–146)
... • A nuclear reaction is a reaction that involves the nucleus of an atom. A nuclear reaction can change an element into a different element. • Some isotopes of elements break apart naturally. Radioactive decay is a process in which the nuclei of unstable isotopes give off atomic particles and energy. ...
... • A nuclear reaction is a reaction that involves the nucleus of an atom. A nuclear reaction can change an element into a different element. • Some isotopes of elements break apart naturally. Radioactive decay is a process in which the nuclei of unstable isotopes give off atomic particles and energy. ...
September - RadMD.com
... Request for a follow-up study - A follow-up study may be needed to help evaluate a patient’s progress after treatment, procedure, intervention or surgery. Documentation requires a medical reason that clearly indicates why additional imaging is needed for the type and area(s) requested. Conductive He ...
... Request for a follow-up study - A follow-up study may be needed to help evaluate a patient’s progress after treatment, procedure, intervention or surgery. Documentation requires a medical reason that clearly indicates why additional imaging is needed for the type and area(s) requested. Conductive He ...
radioactive decay
... the mass of the most abundant isotope. I can conclude that boron-11 is the more abundant isotope on Earth. ...
... the mass of the most abundant isotope. I can conclude that boron-11 is the more abundant isotope on Earth. ...
Chapter #20 Nuclear Chemistry
... done 14 years later when Aluminum-27 to make phosphorus-30 and a neutron If the bombarding particle has a positive charge then repulsion by the nucleus hinders the process, thus particle accelerators are required. Cyclotron and linear accelerator pg850 Neutrons, do not suffer from the repulsive effe ...
... done 14 years later when Aluminum-27 to make phosphorus-30 and a neutron If the bombarding particle has a positive charge then repulsion by the nucleus hinders the process, thus particle accelerators are required. Cyclotron and linear accelerator pg850 Neutrons, do not suffer from the repulsive effe ...
Magellan Healthcare Clinical guidelines TEMPORAL BONE
... Request for a follow-up study - A follow-up study may be needed to help evaluate a patient’s progress after treatment, procedure, intervention or surgery. Documentation requires a medical reason that clearly indicates why additional imaging is needed for the type and area(s) requested. Conductive He ...
... Request for a follow-up study - A follow-up study may be needed to help evaluate a patient’s progress after treatment, procedure, intervention or surgery. Documentation requires a medical reason that clearly indicates why additional imaging is needed for the type and area(s) requested. Conductive He ...
Chapter 29
... • 2) Beta particles: either electrons or positrons (a positron is the antiparticle of the electron, similar to the electron except its charge is +e) • 3) Gamma rays: high energy photons ...
... • 2) Beta particles: either electrons or positrons (a positron is the antiparticle of the electron, similar to the electron except its charge is +e) • 3) Gamma rays: high energy photons ...
Three-dimensional (3D) image reconstruction
... image, is a single 2D view of total x-ray absorption through the body along a given axis. Two objects (say, bones) in front of one another will overlap in the image. By contrast, a 3D CT image gives a volumetric representation. (Earlier CT data sets were better thought of as a set of 2D cross sectio ...
... image, is a single 2D view of total x-ray absorption through the body along a given axis. Two objects (say, bones) in front of one another will overlap in the image. By contrast, a 3D CT image gives a volumetric representation. (Earlier CT data sets were better thought of as a set of 2D cross sectio ...
Philips SPECT/CT Systems
... -Precedence and BrightView XCT SPECT (Precedence & BrightView): True Energy Independence ...
... -Precedence and BrightView XCT SPECT (Precedence & BrightView): True Energy Independence ...
Absorption and Biological Effects of Ionising Radiation
... Neutrons are uncharged subatomic particles with the mass approximately equal to that of proton. They are contained in the nucleus of every atom, except for hydrogen. Although stable in nuclei, isolated neutrons decay by b-emission into protons, with a half-life of 11.6 minutes. They induce ionisatio ...
... Neutrons are uncharged subatomic particles with the mass approximately equal to that of proton. They are contained in the nucleus of every atom, except for hydrogen. Although stable in nuclei, isolated neutrons decay by b-emission into protons, with a half-life of 11.6 minutes. They induce ionisatio ...
Unit 3 - Princeton High School
... More than 2000 years ago, a Greek philosopher named _____________ proposed the existence of very small, indivisible particles, each of which was called a(n) _____________. The theory that such particles existed was supported much later, by _____________ who proposed, in his law of _______________ __ ...
... More than 2000 years ago, a Greek philosopher named _____________ proposed the existence of very small, indivisible particles, each of which was called a(n) _____________. The theory that such particles existed was supported much later, by _____________ who proposed, in his law of _______________ __ ...
Nuclear Chemistry Radioactivity
... – In contrast, nuclides to the right of the band of stability have a neutron-to-proton ratio smaller than that needed for a stable nucleus. – These nuclides tend to decay by positron emission or electron capture because it increases the neutron to proton ratio. – In the very heavy elements, especial ...
... – In contrast, nuclides to the right of the band of stability have a neutron-to-proton ratio smaller than that needed for a stable nucleus. – These nuclides tend to decay by positron emission or electron capture because it increases the neutron to proton ratio. – In the very heavy elements, especial ...
Diagnostic Reference Levels
... In diagnostic nuclear medicine DRLs are expressed in terms of administered activities (MBq) rather than absorbed dose (2). The DRL values are not based on the 75th percentile but on the administered activity necessary for a good image on well- adjusted equipment during a standard procedure. In diagn ...
... In diagnostic nuclear medicine DRLs are expressed in terms of administered activities (MBq) rather than absorbed dose (2). The DRL values are not based on the 75th percentile but on the administered activity necessary for a good image on well- adjusted equipment during a standard procedure. In diagn ...
Technetium-99m
Technetium-99m is a metastable nuclear isomer of technetium-99 (itself an isotope of technetium), symbolized as 99mTc, that is used in tens of millions of medical diagnostic procedures annually, making it the most commonly used medical radioisotope.Technetium-99m is used as a radioactive tracer and can be detected in the body by medical equipment (gamma cameras). It is well suited to the role because it emits readily detectable 140 keV gamma rays (these 8.8pm photons are about the same wavelength as emitted by conventional X-ray diagnostic equipment) and its half-life for gamma emission is 6.0058 hours (meaning 93.7% of it decays to 99Tc in 24 hours). The ""short"" physical half-life of the isotope and its biological half-life of 1 day (in terms of human activity and metabolism) allows for scanning procedures which collect data rapidly but keep total patient radiation exposure low. The same characteristics make the isotope suitable only for diagnostic but never therapeutic use.Technetium-99m was discovered as a product of cyclotron bombardment of molybdenum. This procedure produced molybdenum-99, a radionuclide with a longer half-life (2.75 days), which decays to Tc-99m. At present, molybdenum-99 (Mo-99) is used commercially as the easily transportable source of medically used Tc-99m. In turn, this Mo-99 is usually created commercially by fission of highly enriched uranium in aging research and material testing nuclear reactors in several countries.