(nucleonics) The branch of technology that deals with the utilization of the nuclear fission process, and is concerned with the design and construction of nuclear reactors and auxiliary facilities, the development and fabrication of special materials, and the handling and processing of reactor products.
Nuclear engineering
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The branch of engineering that deals with the production and use of nuclear energy and nuclear radiation. The multidisciplinary field of nuclear engineering is studied in many universities. In some it is offered in a special nuclear engineering department; in others it is offered in other departments, such as mechanical or chemical engineering. Primarily, nuclear engineering involves the conception, development, design, construction, operation, and decommissioning of facilities in which nuclear energy or nuclear radiation is generated or used.
Examples of facilities include nuclear power plants; nuclear propulsion reactors used for the propulsion of ships and submarines; space nuclear reactors, used to power satellites, probes, and vehicles; nuclear production reactors, which produce fissile or fusile materials used in nuclear weapons; nuclear research reactors, which generate neutrons and gamma rays for scientific research and medical and industrial applications; gamma cells, which are used for sterilizing medical equipment and food and for manufacturing polymers; particle accelerators, which produce nuclear radiation for use in medical and industrial applications; and nuclear waste repositories. See also Nuclear medicine; Nuclear power; Nuclear reactor; Particle accelerator; Radioactive waste management; Ship nuclear propulsion; Space power systems; Submarine.
Many nuclear engineers are also involved in the research and development of future fusion power plants—plants that will be based on the fusion reaction for generating nuclear energy. Many challenging engineering problems are involved, including the development of technologies for heating the fusion fuel to hundreds of millions of degrees; confining this ultrahot fuel; and compressing fusion fuel to many thousand times their natural solid density. See also
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Note: click on a word meaning below to see its connections and related words.
The noun has one meaning:
Meaning #1:
the branch of engineering concerned with the design and construction and operation of nuclear reactors
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Nuclear engineering is the application of the breakdown of atomic nuclei and/or other sub-atomic physics, based on the principles of nuclear physics. It includes, but is not limited to, the interaction and maintenance of nuclear fission systems and components— specifically, nuclear reactors, nuclear power plants, and/or nuclear weapons. The field may also include the study of nuclear fusion, medical and other applications of (generally ionizing) radiation, nuclear safety, heat/thermodynamics transport, nuclear fuel and/or other related (e.g., waste disposal) technology, nuclear proliferation, and the effect of radioactive waste or radioactivity in the environment.
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Typical training in the United States
The following is the typical coursework included in most U.S. nuclear engineering degree programs.
As with any engineering discipline, college preparation should include mathematics training through the beginnings of calculus, as well as introductory courses in physics and chemistry.
Undergraduate coursework
Undergraduate coursework should begin with a good foundation in mechanics and dynamics of particle motion, thermodynamics, introductory computer programming, college level physics and chemistry, and a rigorous training in mathematics through differential equations.
Midway through undergraduate training a nuclear engineer must choose a specialization within their field for further study. Upper level coursework in a nuclear engineering program includes but is not limited to fluid mechanics, reactor physics, quantum mechanics, thermal hydraulics, linear circuits, radiation effects, and neutron transport. Multi-energy neutron transport is taught at most universities offering degrees in nuclear engineering, but typically only at the graduate level.
Specialization in fission includes the study of nuclear reactors, fission systems, and nuclear power plants. Primary instruction deals with neutronics and thermal-hydraulics for nuclear generated electricity. A firm foundation in thermodynamics and fluid mechanics in addition to hydrodynamics is a must.
Specialization in nuclear fusion includes electrodynamics and plasmas. This area is very much research oriented and training often terminates with a graduate level degree.
Specialization in nuclear medicine includes courses dealing with doses and absorption of radiation in bodily tissues. Those who gain competency in this area usually move into the medical field. Many nuclear engineers in this specialization go on to become board licensed medical physicists or go to medical school and become a radiation oncologist. Remaining in academia in a research capacity is also a common choice for graduates.
Naval Nuclear Power School
The US Navy runs a program called Naval Nuclear Power School to train both officers and enlisted sailors for nuclear plant operation. While some officers have undergraduate backgrounds in nuclear engineering, any officers who take the requisite math and science classes are also accepted, whereas most of the enlisted students hold no college degrees at all. Despite this, they are prepared, through a rigorous training program (lasting between 16 months for Machinist's Mates and eighteen months for Electronics Technicians and Electrician's Mates), to operate the nuclear and steam plants aboard the navy's submarines and aircraft carriers. This training carries a specific type of Department of Energy certification that applies only to Naval Nuclear Reactors, however, many sailors choose to work at civilian power plants after their six-year obligations are completed.
_bravo_sea_trials.jpg) USS Virginia, a Virginia-class nuclear attack (SSN) submarine |
 USS Ronald Reagan (CVN-76)), the ninth Nimitz-class supercarrier |
Professional areas
Nuclear fission
Nuclear fission is the disintegration of a fissionable atom's nucleus into two or more different elements nuclei. An approximate number of ~2.4 neutrons are scattered around per fission. There are two types of nuclear fission. 1-Fast Fission 2-Thermal fission
Generally, thermal fission is used in commercial reactors, if we disregard the Fast Breeder Type of Nuclear Reactors.
The United States gets about 20% of its electricity from nuclear power. This is a massive industry and keeping the supply of nuclear engineers plentiful will ensure its stability. Nuclear engineers in this field generally work, directly or indirectly, in the nuclear power industry or for government labs. Current research in industry is directed at producing economical, proliferation resistant reactor designs with passive safety features. Although government labs research the same areas as industry, they also study a myriad of other issues such as: nuclear fuels and nuclear fuel cycles, advanced reactor designs, and nuclear weapon design and maintenance. A principal pipeline for trained personnel for US reactor facilities is the Navy Nuclear Power Program.
 Nuclear Powerplant |
.jpg) B-61 thermonuclear weapon |
Nuclear fusion and plasma physics
Research areas in nuclear fusion and plasma physics include high-temperature, radiation-resistant materials, and plasma dynamics. Internationally, research is currently directed at building a prototype tokamak called ITER. The research at ITER will primarily focus on instabilities and diverter design refinement. Researchers in the USA are also building an inertial confinement experiment called the National Ignition Facility or NIF. NIF will be used to refine neutron transport calculations for the US stockpile stewardship initiative.
 NIF (National Ignition Facility) target chamber |
Nuclear medicine and medical physics
An important field is nuclear medicine. From x-ray machines to MRI to PET, among many others, nuclear medicine provides most of modern medicine's diagnostic capability along with providing many treatment options.
 X-Ray Image of a male skull |
 Magnetic Resonance Imaging scan of a head |
 PET taken with an ECAT Exact HR+ PET Scanner |
Nuclear materials and nuclear Fuels
Nuclear materials research focuses on two main subject areas, nuclear fuels and irradiation-induced modification of materials. Improvement of nuclear fuels is crucial for obtaining increased efficiency from nuclear reactors. Irradiation effects studies have many purposes, from studying structural changes to reactor components to studying nano-modification of metals and semiconductors using ion-beams or particle accelerators.
 Uranium ore, the principal raw material of nuclear fuel |
 Nuclear fuel pellets |
Radiation measurements and imaging
Nuclear engineers and radiological scientists are interested in the development of more advanced ionizing radiation measurement and detection systems, and using these to improve imaging technologies. This includes detector design, fabrication and analysis, measurements of fundamental atomic and nuclear parameters, and radiation imaging systems, among other things.
 A modern Geiger counter |
 Scintillation detector next to Uraninite |
Nuclear engineering organizations
- American Nuclear Society
- International Atomic Energy Agency
- Institution of Nuclear Engineers (London)
List of institutions offering nuclear engineering courses
List of colleges in the U.S.
List of universities in Canada
| University | Department (external links) | Degrees offered |
|---|---|---|
| McMaster University, Hamilton | Engineering Physics (Nuclear Engineering Option) | B.Eng. Phys., Dipl. Nuc.Tech, M.Eng, M.A.Sc, Ph.D. |
| University of Ontario Institute of Technology, Oshawa | Nuclear Engineering | B.Eng, M.Eng, M.A.Sc, Ph. D |
| École Polytechnique de Montréal, Montréal | Institute of Nuclear Engineering | M.Eng, M.Sc, PhD |
| Royal Military College of Canada, Kingston | Department of Chemistry and Chemical Engineering | M.Sc, M.A.Sc, M.Eng, PhD |
List of universities in the United Kingdom
| College | Department (external links) | Degrees offered |
|---|---|---|
| Lancaster University | Nuclear Engineering | M.Eng |
| University of Birmingham | Physics and Technology of Nuclear Reactors | MSc |
| Nuclear Technology Education Consortium | Nuclear Science and Technology | MSc |
List of colleges in India
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