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Mayapuri Radiological Accident
Mayapuri is an industrial locality in the West Delhi district of Delhi, India. It used to be a major hub of heavy metal and small-scale industries, but following government sanctions, most of the heavy metal industries moved out. The place is now a combination of light metal factories, scrap markets, and automobile service stations. In 2010, a major radiation accident took place in the scrap yards of Mayapuri. There are some famous landmarks in the area like the Food Corporation of India, Metal Forging and Deen Dayal Upadhyay Hospital. The area is connected with Delhi Metro by Mayapuri station. Mayapuri is also one of the major bus terminals for the Delhi Transport Corporation (DTC). 2010 Mayapuri radiation accident In early April 2010, Mayapuri was affected by a serious radiological accident. An AECL Gammacell 220 research irradiator owned by Delhi University since 1968, but unused since 1985, was negligently sold at an auction to a scrap metal dealer in Mayapuri on 26 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Country
A country is a distinct part of the world, such as a state, nation, or other political entity. When referring to a specific polity, the term "country" may refer to a sovereign state, state with limited recognition, constituent country, or dependent territory. Most sovereign states, but not all countries, are members of the United Nations. There is no universal agreement on the number of "countries" in the world, since several states have disputed sovereignty status or limited recognition, and a number of non-sovereign entities are commonly considered countries. The definition and usage of the word "country" are flexible and have changed over time. '' The Economist'' wrote in 2010 that "any attempt to find a clear definition of a country soon runs into a thicket of exceptions and anomalies." Areas much smaller than a political entity may be referred to as a "country", such as the West Country in England, "big sky country" (used in various contexts of the American We ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrap Metal
Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap can have monetary value, especially recovered metals, and non-metallic materials are also recovered for recycling. Once collected, the materials are sorted into types – typically metal scrap will be crushed, shredded, and sorted using mechanical processes. Metal recycling, especially of structural steel, ships, used manufactured goods, such as vehicles and white goods, is an industrial activity with complex networks of wrecking yards, sorting facilities, and recycling plants. The industry includes both formal organizations and a wide range of informal roles such as waste pickers who help sorting through scrap. Processing Scrap metal originates both in business and residential environments. Typically a "scrapper" will advertise their services to conveniently remove scrap metal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Era Public School
New Era Public School, is a school in Mayapuri, New Delhi, India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since .... It was founded in 1960 by the New Era Education Society in Delhi. The project of Mr. R.L. Chopra and Mrs. Usha Chopra came into existence in 1965. The school is an All India Senior Secondary school, affiliated with the Central Board of Secondary Education and recognised by the Directorate of Education. The school came into existence in one room in the year 1960. The school organises the annual Saraswati Memorial Quiz Festival, an event involving the participation of Delhi's top schools for 16 events over a period of 3 days. The school also holds Qriosity, a large Inter School Quiz Festival in Delhi and SYNC, an Inter School IT symposium. The school has another ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Metal (chemistry)
upright=1.2, Crystals of lead.html" ;"title="osmium, a heavy metal nearly twice as dense as lead">osmium, a heavy metal nearly twice as dense as lead Heavy metals is a controversial and ambiguous term for metallic elements with relatively high density, densities, atomic weights, or atomic numbers. The criteria used, and whether metalloids are included, vary depending on the author and context and it has been argued that the term "heavy metal" should be avoided. A heavy metal may be defined on the basis of density, atomic number or chemical behaviour. More specific definitions have been published, none of which have been widely accepted. The definitions surveyed in this article encompass up to 96 out of the 118 known chemical elements; only mercury, lead and bismuth meet all of them. Despite this lack of agreement, the term (plural or singular) is widely used in science. A density of more than 5 g/cm3 is sometimes quoted as a commonly used criterion and is used in the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiation Portal Monitor
Radiation Portal Monitors (RPMs) are passive radiation detection devices used for the screening of individuals, vehicles, cargo or other vectors for detection of illicit sources such as at borders or secure facilities. Fear of terrorist attacks with radiological weapons spurred RPM deployment for cargo scanning since 9/11, particularly in the United States. Application RPMs were originally developed for screening individuals and vehicles at secure facilities such as weapons laboratories. They were deployed at scrap metal facilities to detect radiation sources mixed among scrap that could contaminate a facility and result in a costly clean up. As part of the effort to thwart nuclear smuggling after the breakup of the Soviet Union, RPMs were deployed around that territory, and later around many other European and Asian countries, by the US Department of Energy (DOE) National Nuclear Security Administration (NNSA) Second Line of Defense Program (SLD) starting in the late 1990s. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiation Detector
In experimental and applied particle physics, nuclear physics, and nuclear engineering, a particle detector, also known as a radiation detector, is a device used to detect, track, and/or identify ionizing particles, such as those produced by nuclear decay, cosmic radiation, or reactions in a particle accelerator. Detectors can measure the particle energy and other attributes such as momentum, spin, charge, particle type, in addition to merely registering the presence of the particle. The operating of a nuclear radiation detector The operating principle of a nuclear radiation detector can be summarized as follows: The detector identifies high-energy particles or photons—such as alpha, beta, gamma radiation, or neutrons—through their interactions with the atoms of the detector material. These interactions generate a primary signal, which may involve ionization of gas, the creation of electron-hole pairs in semiconductors, or the emission of light in scintillating materials. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delhi Police
The Delhi Police (DP) is the law enforcement agency for the National Capital Territory of Delhi. Delhi Police falls under the jurisdiction of the Ministry of Home Affairs, Government of India. In 2024, the sanctioned strength of Delhi Police was 83,762 (including I.R. Battalions) making it one of the largest metropolitan police forces in the world. About 25% of Delhi Police strength is earmarked for VIP security. History Delhi Police traces its history back to a small security force, established in 1854, under the assistant of British Resident to the Mughal Imperial Courts. In 1861 after the adoption of the Indian Police Act, Delhi Police remained a part of the Punjab Police until India gained independence in 1947. The first five police stations inaugurated in Delhi under this act were Sadar Bazaar, Sabzi Mandi, Mehrauli, and Mundka. Organisation Before 1948 Delhi was a part of Punjab Police. 1948–1966 In 1948, the Delhi Police was restructured. Mr D.W. Mehra becam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Nuclear Events Scale
The International Nuclear and Radiological Event Scale (INES) was introduced in 1990 by the International Atomic Energy Agency (IAEA) in order to enable prompt communication of safety significant information in case of nuclear accidents. The scale is intended to be logarithmic, similar to the moment magnitude scale that is used to describe the comparative magnitude of earthquakes. Each increasing level represents an accident approximately ten times as severe as the previous level. Compared to earthquakes, where the event intensity can be quantitatively evaluated, the level of severity of a human-made disaster, such as a nuclear accident, is more subject to interpretation. Because of this subjectivity, the INES level of an incident is assigned well after the fact. The scale is therefore intended to assist in disaster-aid deployment. Details A number of criteria and indicators are defined to assure coherent reporting of nuclear events by different official authorities. There a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Department Of Atomic Energy (India)
The Department of Atomic Energy (DAE) (IAST: ''Paramāṇu Ūrjā Vibhāga'') is an Indian government department with headquarters in Mumbai, Maharashtra, India. DAE was established in 1954 with Jawaharlal Nehru as its first minister and Homi Bhabha as its secretary. DAE has been engaged in the development of nuclear power technology, applications of radiation technologies in the fields of agriculture, medicine, industry and basic research. DAE comprises six research centres, three industrial organisations, five public sector undertakings and three service organisations. It has under its aegis two boards for promoting and funding extramural research in nuclear and allied fields, mathematics and a national institute (deemed university). It also supports eight institutes of international repute engaged in research in basic sciences, astronomy, astrophysics, cancer research and education. It also has in its fold an educational society that provides educational facilities for chi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narora Atomic Power Station
Narora Atomic Power Station (NAPS) is a nuclear power plant located in Narora, Dibai Tehsil, Bulandshahar District in Uttar Pradesh, India. Reactors The plant houses two reactors, each a pressurized heavy-water reactor (PHWR) capable of producing 220 MW of electricity. Commercial operation of NAPS-1 began on 1 January 1991, NAPS-2 on 1 July 1992. The reactors were not originally under IAEA safeguards. but subsequent to the signing of the 1-2-3 agreement, they have been placed under IAEA monitoring with effect from 2014. Units Incidents On 31 May 1993, after months of operation,two steam turbine blade ...s in NAPS-1 malfunctioned causing a major fire. This fire propagated to the ractor's emergency cabling system a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Energy Regulatory Board
The Atomic Energy Regulatory Board (AERB) was constituted on 15 November 1985 by the President of India by exercising the powers conferred by Section 27 of the Atomic Energy Act, 1962 (33 of 1962) to carry out certain regulatory and safety functions under the Act. The regulatory authority of AERB is derived from the rules and notifications promulgated under the Atomic Energy Act, 1962 and the Environmental (Protection) Act, 1986. The headquarters is in Mumbai. The mission of the Board is to ensure that the use of ionising radiation and nuclear energy in India does not cause undue risk to health and the environment. Currently, the Board consists of a full-time Chairman, an ''ex officio'' Member, three part-time Members and a Secretary. AERB is supported by the Safety Review Committee for Operating Plants (SARCOP), Safety Review Committee for Applications of Radiation (SARCAR) and Advisory Committees for Project Safety Review (ACPSRs) (e.g. Pressurized heavy-water reactor, li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
All India Institute Of Medical Sciences, New Delhi
All India Institute of Medical Sciences, New Delhi (AIIMS New Delhi), is a public medical research university and hospital in New Delhi, India. The institute is governed by the AIIMS Act, 1956 and operates autonomously under the Ministry of Health and Family Welfare (India), Ministry of Health and Family Welfare. History The idea of AIIMS arose in 1946 by the prominent scientist Dr. Stotrom Das, after a recommendation by the Health Survey of the Government of India. From then to the establishment and development of AIIMS (New Delhi) over the ensuing years, several illustrious individuals played their part in bringing the idea to fruition. Originally proposed by the then Prime Minister of India Jawaharlal Nehru for establishment in Calcutta, it was established in New Delhi following the refusal of Chief Minister of West Bengal Bidhan Chandra Roy. The foundation stone of AIIMS Delhi was laid in 1952. On 18 February 1956, the then Minister of Health, Rajkumari Amrit Kaur, intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
