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Columbus Radiotherapy Accident
A radiotherapy accident in Columbus, Ohio, Columbus, Ohio, also known as the Riverside radiation case, occurred as the result of an incorrectly calibrated Cobalt therapy, cobalt teletherapy unit, occurred between 1974 and 1976, leading to 10 deaths. Background Between 1958 and 1972, the Riverside Methodist Hospital in Columbus, Ohio became the first hospital in Columbus metropolitan area, Ohio, Central Ohio to develop an extensive cobalt therapy program, where the use of cobalt-60 became the dominant radiation source for treating patients with cancer. In 1973, 30-year-old Joel Axt was hired by the hospital as the resident physicist, as part of a plan to further expand the hospital's radiation therapy program. Axt was previously a teacher at the Xavier University of Louisiana, and had clinical experience at the UCSF Medical Center, University of California Medical Center, though his experience was limited to 14 months and was not enough to qualify for American Board of Radiology cert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbus, Ohio
Columbus () is the state capital and the most populous city in the U.S. state of Ohio. With a 2020 census population of 905,748, it is the 14th-most populous city in the U.S., the second-most populous city in the Midwest, after Chicago, and the third-most populous state capital. Columbus is the county seat of Franklin County; it also extends into Delaware and Fairfield counties. It is the core city of the Columbus metropolitan area, which encompasses 10 counties in central Ohio. The metropolitan area had a population of 2,138,926 in 2020, making it the largest entirely in Ohio and 32nd-largest in the U.S. Columbus originated as numerous Native American settlements on the banks of the Scioto River. Franklinton, now a city neighborhood, was the first European settlement, laid out in 1797. The city was founded in 1812 at the confluence of the Scioto and Olentangy rivers, and laid out to become the state capital. The city was named for Italian explorer Christopher Columbus. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MD Anderson Cancer Center
The University of Texas MD Anderson Cancer Center (colloquially MD Anderson Cancer Center) is a comprehensive cancer center in Houston, Texas. It is the largest cancer center in the U.S. and one of the original three comprehensive cancer centers in the country. It is both a degree-granting academic institution and a cancer treatment and research center located at the Texas Medical Center in Houston. It is affiliated with The University of Texas Health Science Center at Houston. According to Newsweek, MD Anderson Cancer Center is considered the best hospital in the world for oncology and related cancer treatment. History The cancer center is named after Monroe Dunaway Anderson, a banker and cotton trader from Jackson, Tennessee. He was a member of a business partnership with his brother-in-law Will Clayton. Their company became the largest cotton company in the world. Anderson feared that in the event of one of the partners' deaths, the company would lose a large amount of money ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clinic Of Zaragoza Radiotherapy Accident
The 1990 Clinic of Zaragoza radiotherapy accident was a radiological accident that occurred from 10 to 20 December 1990, at the Clinic of Zaragoza, in Aragon, Spain. In the accident, at least 27 patients were injured, and 11 of them died due to the overexposure, according to International Atomic Energy Agency (IAEA). All of the injured were cancer patients receiving external beam radiotherapy. Chronology On 7 December 1990, a technician performed maintenance on an electron accelerator at the Clinic of Zaragoza. On 10 December, it returned to service after the repairs. Affected patients immediately suffered burns on the skin of the irradiated area, as well as inflammation of the internal organs and bone marrow. The first overexposed patient died on 16 February 1991, two months after irradiation. Fatalities increased until, on 25 December 1991, the last of a total of 25 patients died. The IAEA established that 11 of the deaths were due to the faulty maintenance. On 19 December, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1996 San Juan De Dios Radiotherapy Accident
The radiotherapy accident in Costa Rica occurred with the Alcyon II radiotherapy unit at San Juan de Dios Hospital in San José, Costa Rica. It was related to a cobalt-60 source that was being used for radiotherapy in 1996. An accidental overexposure of radiotherapy patients treated during August and September 1996 was detected. During the calibration process done after the change of 60Co source on 22 August 1996, a mistake was made in calculating the dose rate, leading to severe overexposure of patients. The error of calibration was detected on 27 December 1997. In the course of the accident, 114 patients received an overdose of radiation and 13 died of radiation-related injuries. In 2001, the radiophysicist whose mistake caused the radiation overdoses was charged with 16 culpable homicides and sentenced to six years in prison. See also * Goiânia accident * 1962 Mexico City radiation accident * List of civilian radiation accidents * Radiotherapy accident in Zaragoza * X-ray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Civilian Radiation Accidents
This article lists notable civilian accidents involving radioactive materials or involving ionizing radiation from artificial sources such as x-ray tubes and particle accelerators. Accidents related to nuclear power that involve fissile materials are listed at List of civilian nuclear accidents. Military accidents are listed at List of military nuclear accidents. Scope of this article In listing civilian radiation accidents, the following criteria have been followed: # There must be well-attested and substantial health damage, property damage or contamination. # The damage must be related directly to radioactive materials or ionizing radiation from a man-made source, not merely taking place at a facility where such are being used. # To qualify as "civilian", the operation/material must be principally for non-military purposes. # The event is not an event involving fissile material or a nuclear reactor. Before 1950s *Clarence Madison Dally (1865–1904) – No INES level – Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deposition (law)
A deposition in the law of the United States, or examination for discovery in the law of Canada, involves the taking of sworn, out-of-court oral testimony of a witness that may be reduced to a written transcript for later use in court or for discovery purposes. Depositions are commonly used in litigation in the United States and Canada. They are almost always conducted outside court by the lawyers themselves, with no judge present to supervise the examination. History Depositions by written interrogatories first appeared around the mid-15th century as a procedure for discovery, factfinding, and evidence preservation in suits in equity in English courts. Available through HeinOnline. They differed radically from modern depositions in three ways: (1) the party seeking a witness's testimony merely propounded written interrogatories which were read out loud by a master or court-appointed commissioner to the witness in a closed proceeding without parties or counsel present; (2) the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miami
Miami ( ), officially the City of Miami, known as "the 305", "The Magic City", and "Gateway to the Americas", is a East Coast of the United States, coastal metropolis and the County seat, county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida, United States. With a population of 442,241 at the 2020 United States census, 2020 census, it is the List of municipalities in Florida, second-most populous city in Florida and the eleventh-most populous city in the Southeastern United States. The Miami metropolitan area is the ninth largest in the U.S. with a population of 6.138 million in 2020. The city has the List of tallest buildings in the United States#Cities with the most skyscrapers, third-largest skyline in the U.S. with over List of tallest buildings in Miami, 300 high-rises, 58 of which exceed . Miami is a major center and leader in finance, commerce, culture, arts, and international trade. Miami's metropolitan area is by far the largest urban econ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Regulatory Commission
The Nuclear Regulatory Commission (NRC) is an independent agency of the United States government tasked with protecting public health and safety related to nuclear energy. Established by the Energy Reorganization Act of 1974, the NRC began operations on January 19, 1975, as one of two successor agencies to the United States Atomic Energy Commission. Its functions include overseeing reactor safety and security, administering reactor licensing and renewal, licensing radioactive materials, radionuclide safety, and managing the storage, security, recycling, and disposal of spent fuel. History Prior to 1975 the Atomic Energy Commission was in charge of matters regarding radionuclides. The AEC was dissolved, because it was perceived as unduly favoring the industry it was charged with regulating.John Byrne and Steven M. Hoffman (1996). ''Governing the Atom: The Politics of Risk'', Transaction Publishers, p. 163. The NRC was formed as an independent commission to oversee nuclear ene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decay Rate
Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay ( ), beta decay ( ), and gamma decay ( ), all of which involve emitting one or more particles. The weak force is the mechanism that is responsible for beta decay, while the other two are governed by the electromagnetism and nuclear force. A fourth type of common decay is electron capture, in which an unstable nucleus captures an inner electron from one of the electron shells. The loss of that electron from the shell results in a cascade of electrons dropping down to that lower shell resulting in emission of discrete X-rays from the transitions. A common example is iodine-125 commonly used in medical settings. Radioactive decay is a stochastic (i.e. random) process ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohio
Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The state's capital and largest city is Columbus, with the Columbus metro area, Greater Cincinnati, and Greater Cleveland being the largest metropolitan areas. Ohio is bordered by Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the west, and Michigan to the northwest. Ohio is historically known as the "Buckeye State" after its Ohio buckeye trees, and Ohioans are also known as "Buckeyes". Its state flag is the only non-rectangular flag of all the U.S. states. Ohio takes its name from the Ohio River, which in turn originated from the Seneca word ''ohiːyo'', meaning "good river", "great river", or "large creek". The state arose from the lands west of the Appalachian Mountai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Board Of Radiology
Established in 1934, the American Board of Radiology (ABR) is an independent, not-for-profit professional association with headquarters in Tucson, Arizona. It oversees the certification and ongoing professional development of physician specialists in diagnostic radiology, interventional radiology, and radiation oncology, as well as medical physicists in diagnostic, nuclear, and therapy medical physics. The ABR certifies its diplomates through a comprehensive process involving educational requirements, professional peer evaluation, and examination. See also *American Osteopathic Board of Radiology *American Board of Medical Specialties *American Board of Science in Nuclear Medicine The American Board of Science in Nuclear Medicine, founded in 1976, also known as the ABSNM is an organization in North America that offers certification to specialty areas of advanced nuclear medicine. The board offers certification in the followi ... References External links * Radiology orga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UCSF Medical Center
The University of California, San Francisco Medical Center is a research and teaching hospital in San Francisco, California and is the medical center of the University of California, San Francisco. It is affiliated with the UCSF School of Medicine. In 2022–23, it was ranked as the 12th-best overall hospital in the United States and one of the top three hospital in California by '' U.S. News & World Report''. It was founded in 1907 at the site of Parnassus Heights, on Mount Sutro, following the 1906 earthquake, and it was the first hospital in the University of California system. The university acquired Mount Zion Hospital in 1990, which became the second major clinical site and since 1999 has hosted the first comprehensive cancer center in Northern California. Beginning in 2001, the university expanded in the Mission Bay neighborhood and added a new medical center with three new hospitals. History The UCSF medical center opened as a hospital in 1907 with 75 beds, after t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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