neutron [ 'nju:trɔn] n.中子
molecule分子；
atom原子；
neutron中子；
proton质子；
nucleus原子核；
ion离子。
Facility scattered neutrons 条件散射中子
Neutron 中子
Neutron radiograhy 中子射线透照
Neutron radiography 中子射线透照术
Object scattered neutrons 物体散射中子
Scattered neutrons 散射中子
Thermal neutrons 热中子
中子 [zhōng zǐ] /neutron/
中子星 [zhōng zǐ xīng] /neutron star/
{adj: exotic} strikingly strange or unusual
"an exotic hair style"
"protons, neutrons, electrons and all their exotic variants"
"the exotic landscape of a dead planet"
{n: Brockhouse, Bertram Brockhouse} Canadian physicist who bounced neutron beams off of atomic nuclei to study the structure of matter (1918-2003)
{n: Fermi, Enrico Fermi} Italian nuclear physicist (in the United States after 1939) who worked on artificial radioactivity caused by neutron bombardment and who headed the group that in 1942 produced the first controlled nuclear reaction (1901-1954)
{n: Pauli exclusion principle, exclusion principle} no two electrons or protons or neutrons in a given system can be in states characterized by the same set of quantum numbers
{n: antineutron} the antiparticle of a neutron
{n: boron chamber} an ionization chamber lined with boron or filled with boron trifluoride gas for counting low velocity neutrons
{n: boron counter tube} a proportional counter tube for counting neutrons
{n: chain reaction} a self-sustaining nuclear reaction; a series of nuclear fissions in which neutrons released by splitting one atom leads to the splitting of others
{n: corpuscular radiation, particulate radiation} a stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons)
{n: deuterium, heavy hydrogen} an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)
{n: deuteron} the nucleus of deuterium; consists of one proton and one neutron; used as a bombarding particle in accelerators
{n: einsteinium, Es, E, atomic number 99} a radioactive transuranic element produced by bombarding plutonium with neutrons
{n: fast reactor} nuclear reactor in which nuclear fissions are caused by fast neutrons because little or no moderator is used
<-> thermal reactor
{n: fermium, Fm, atomic number 100} a radioactive transuranic metallic element produced by bombarding plutonium with neutrons
{n: hyperon} any baryon that is not a nucleon; unstable particle with mass greater than a neutron
{n: isotope} one of two or more atoms with the same atomic number but with different numbers of neutrons
{n: mass number, nucleon number} the sum of the number of neutrons and protons in an atomic nucleus
{n: moderator} any substance used to slow down neutrons in nuclear reactors
{n: neutron bomb} atom bomb that produces lethal neutrons with less blast
{n: neutron flux} the rate of flow of neutrons; the number of neutrons passing through a unit area in unit time
{n: neutron radiation} radiation of neutrons (as by a neutron bomb)
{n: neutron star} a star that has collapsed under its own gravity; it is composed of neutrons
{n: neutron} an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus
{n: nucleon} a constituent (proton or neutron) of an atomic nucleus
{n: plutonium, Pu, atomic number 94} a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239
{n: polonium, Po, atomic number 84} a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor
{n: pulsar} a degenerate neutron star; small and extremely dense; rotates very fast and emits regular pulses of polarized radiation
{n: quantum chromodynamics, QCD} a theory of strong interactions between elementary particles (including the interaction that binds protons and neutrons in the nucleus); it assumes that strongly interacting particles (hadrons) are made of quarks and that gluons bind the quarks together
{n: strong interaction, strong force, color force} (physics) the interaction that binds protons and neutrons together in the nuclei of atoms; mediated by gluons
{n: thermal reactor} a nuclear reactor in which nuclear fissions are caused by neutrons that are slowed down by a moderator
<-> fast reactor
{n: uranium 238} the commonest isotope of uranium; it is not fissionable but when irradiated with neutrons it produces fissionable plutonium 239
{n: zirconium, Zr, atomic number 40} a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon
{v: capture} bring about the capture of an elementary particle or celestial body and causing it enter a new orbit
"This nucleus has captured the slow-moving neutrons"
"The star captured a comet"
Moreover, it is just these more massive stars whose collapse does not halt at intermediate stages (that is, as white dwarfs or neutron stars).
此外，正是这些质量更为庞大的星星，其坍缩过程（collapse）不会停滞在中间阶段（亦即作为白矮星或中子星，white dwarfs or neutron stars）。
It is a popular misconception that nuclear fusion power is free of radioactivity; in fact, the deuterium-tritium reaction that nuclear scientists are currently exploring with such zeal produces both alpha particles and neutrons.
公众的一个甚为流行的误解是，核聚变（nuclear fusion）能量不含任何放射性物质；事实上，核科学家眼下正以如此热情加予探索的氘—氚反应（deuterium tritiumreaction）不仅会产生α—粒子，而且也会产生中子（neutron）。
The neutrons are used to produce tritium from a lithium blanket surrounding the reactor.
中子是用以从环绕着核反应堆的锂再生区（lithium blanket）中产生氚的。
However, if one applies energies of millions of electron volts, nuclear reactions, fission and fusion, and the processes of radioactivity occur; our elementary particles then are protons, neutrons, and electrons.
但是，当我们应用数百万电子伏特的能量时，核反应，即核裂变为核聚变，以及放射过程一并发生；这样，我们的基本粒子便是质子（proton）、中子、以及电子。
When the core of a giant star whose mass surpasses 1.4 times the present mass of our Sun (M⊙) exhausts its nuclear fuel, it is unable to support its own weight and collapses into a tiny neutron star.
当一颗质量超过我们的太阳目前质量（M☉）1.4倍的巨星的内核耗竭其核燃料时，它便无法支撑自身的重量，并收缩成为一颗小型中子星（neutronstar）。
The scientists who observed the flash say it came from an isolated neutron star in the constellation Sagittarius about 50,000 light years away, the distance it takes light to travel in 50,000 years. Astronomer Andrew Fruchter of the institute that operates the Hubble Space Telescope describes a neutron star as the spinning remnant of a massive star that has collapsed into a diameter of only 20 kilometers.
观测到这次爆炸亮光的科学家说，亮光来自于人马星座的一个孤立的中子星。有大约5万光年之远，这段距离光也要走上5万年。来自操控哈伯太空望远镜机构的天文学家安德鲁·福克尔说，中子星是巨星解体后塌陷到只有20公里直径大小的旋转残骸。
The neutron star that caused the giant cosmic blast is an exotic type called a magnetar. It is so named because it has an extremely powerful magnetic field, 1,000 times stronger than an ordinary neutron star and a 1,000-trillion times that of Earth's. It is capable of erasing the magnetic information on a credit card at a distance halfway to the Moon. Only about a dozen magnetars are known among the billions of stars in the Milky Way.
导致发生宇宙大爆炸的中子星是一种的奇特类型叫做磁星，之所以这样命名是因为它有极强的磁场，比一个普通中子星的一千倍还强或者是地球的一千万亿倍。它的磁性可以在离月球一半的距离之外，把信用卡上的磁性扫光。在银河系数十亿颗恒星中只有十多个磁星被人们发现。
The tremendous power of the event suggests a novel solution to a long-standing astronomical mystery. Scientists want to know the origins of the strange phenomenon of brief gamma ray bursts observed hundreds of times over recent decades. They say these short-duration flashes emit gamma rays in the same way the neutron star did in December and that such stars could explain a large number of the occurrences.
这次事件的巨大能量甚至可以认为是长期存在的天文学之迷的一种离奇解释。科学家们想知道伽马射线短暂爆发这种奇特现象的起源，在最近的几十年里他们观测到了几百次这种现象。他们表示这些短暂的闪亮和12月的中子星释放伽玛射线的道理是一样的。 这些恒星可以解释以前发生的一些现象。
spsc-26142004
Neutron irradiators
中子辐照器
spsc-26142007
Neutron generators
中子发生器
spsc-26142108
Nuclear reactor in core neutron flux instrumentation
核反应堆中心中子通量测试设
spsc-41101808
Neutron diffraction apparatus
中子衍射仪器
spsc-71112012
Neutron porosity services
中子孔隙度
spsc-71112117
Neutron porosity logging services
中子穿孔测井
neutron 中子
neutron number 中子数
epithermal neutron activation analysis 超热中子活化分析
compensation neutron logger 补偿温度范围
neutron dosimeter 牛顿流动定律
neutron dosimeter 中子剂量计
neutron logging instrument 中子测井仪
neutron fraiograghy 中子射线照相术
neutron spectromenter 中子能谱仪
neutron-gamma radiometer 中子伽玛辐射仪
side-well neutron logger 井壁中子测井仪
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