What is Nuclear Reactor in Physics
What is Nuclear Reactor
A system used to obtain a controlled amount of heat from nuclear fission is called a nuclear reactor.
Working of a Nuclear Reactor:
The fission material in a nuclear reactor is Uranium. This is called fuel element. The neutrons released from fission move with high velocities. The fast moving neutrons have to be slowed down before they cause further fission. The process of slowing down neutrons is called moderation. Heavy water is used as a moderator. When a chain reaction starts, it may produce large number of neutrons, which may cause too much fission. The rate of chain reaction is controlled by inserting control rods which are commonly made of Boron. The heat produced is a nuclear reactor is carried away by the circulation of pressurized water or carbon dioxide gas inside the core of the reactor. This heat is used to produce steam. This steam can be used to run a power station for the generation of electricity.
Note: At the first year, the faculties of higher education establish a large number of students – several hundred. For the convenience of learning, the students of the course are divided into streams, streams into groups, and groups into subgroups. The schedule is made taking into account this division. For example, lectures are read at once to the entire flow or course, and the classes are held separately in each group or even a subgroup. Generally speaking, the training is divided into lectures, seminars and practical classes. At the lecture the teacher reads or tells theoretical material, and students write it down. Seminars suggest active interaction of the teacher and students, they understand the subtleties of the subject, check the level of knowledge, the degree of preparation of homework. Practical classes allow students to apply the knowledge they have gained in real production or in an institution. Attending lectures and classes is a must for every student. All omissions are usually worked out during extra-curricular time.