Nuclear fission and fusion reactions 能源是人类生活中必不可少的一部分,但随着人类对能源需求的不断增长,且很多传统能源来源已经面临耗竭的局面,新能源的研究和开发变得日益重要。其中,核能作为一种高效、稳定的能源源占据了重要的地位。本文将从核裂变和核聚变两个方面介绍核能的来源和应用。
n69230* --physics (nuclear)--nuclear theory--nuclear reactions & scatteringn68254 --physics (nuclear)--nuclear properties & reactions, a <= 5--nuclear reactions & scattering--neutronselastic scatteringfast neutronshelium 4mev range 01-10
3-dimensional resonance tunneling in chemically assisted nuclear fission and fusion reactions The selective resonant tunneling model [1] has been successful in describing 6 major fusion cross-section data (d+T, d+D, d+He3, t+T, t+He3, p+D). The new ... XZ Li 被引量: 2发表: 1994...
Both fission and fusion release enormous amounts of energy. Both fission and fusion reactions can occur innuclear bombs. So, how can you tell fission and fusion apart? Fission breaks atomic nuclei into smaller pieces. The starting elements have a higher atomic number than that of the fission p...
Nuclear Fission, continued Neutrons released by fission can start a chain reaction. nuclear chain reaction: a continuous series of nuclear fission reactions Chain reactions can be controlled. If the amount of fissionable substance is less than the critical mass, a chain reaction will not continue....
Both fission and fusion can occur naturally. The sun, the source of heat and light energy for the planet, gives off energy produced by fusion reactions between light elements such as hydrogen and helium. This is possible only because the core of the sun has high temperatures and high pressure...
每日一词：核裂变与核聚变揭示了两种能量释放机制。在核裂变中，如铀-235的案例，当一个大原子核分裂成两个较小的核，如铷和铯，多余的质量以核结合能的形式转化为能量。这个过程在核电站中被利用，比如远古时期加蓬奥克洛的自然核裂变现象。相反，核聚变则是轻原子核合并的过程，如在太阳核心，氢...
Fusion Nuclear Fusion is the opposite of fission When two lighter nuclei must travel at high speeds to overcome repulsion and form a heavier atom The hydrogen bomb is a destructive use of power from fusion. Fusion Nuclear Power Plants Nuclear power plants control these reactions Parts of nuclear...
Unlike fission, nuclear fusion also has the added benefit of being self-sustaining without creating harmful waste. However, achieving and controlling fusion has been a lot more difficult for scientists to crack than fission. One problem facing fusion technology is that in order to create self-susta...
“knock” in internal-combustion engines, and thepolymerizationof ethylene to polyethylene. The best-known examples in physics are nuclear fissions brought about by neutrons. Chain reactions are in general very rapid but are also highly sensitive to reaction conditions, probably because the substances...