These have included passive gamma ray spectrometry, passive and active neutron coincidence counting and neutron multiplicity measurements.

In contrast, a free neutron (which also decays through the weak interaction) lives about 15 minutes.

Toxic to many animals, heavy water is used in the nuclear reactor industry to moderate (slow down) neutrons.

(c) Photo neutron interrogation photo induced neutron emission occurs when the energy of an incoming photon (X ray or gamma ray) is above a certain threshold and atoms of low atomic weight undergo photonuclear reactions that emit neutrons.

If a neutrino had a brain, which it evolved in neutrino sized ancestors, it would say that rocks really do consist of empty space.

And you make if from lithium. That reaction at the bottom, that's lithium 6, plus a neutron, will give you more helium, plus tritium.

The mean logarithmic reduction of neutron energy per collision , formula_3, depends only on the atomic mass, formula_4, of the nucleus and is given by formula_5.

The only practical way to capture most of the fusion energy is to trap the neutrons inside a massive bottle of heavy material such as lead, uranium, or plutonium.

Rate2 is the rate of effusion of 238UF6.

As an example, a representative alpha beryllium neutron source can be expected to produce approximately 30 neutrons for every one million alpha particles.

With the discovery of the neutron in the early 1930s, speculation arose in the scientific community that it might be possible to create elements heavier than uranium (atomic number 92) in the laboratory.

The flow of workers out of employment exceeds the flow back into employment.

) Surrounded by a U 238 reflector tamper, the Fat Man's pit was brought close to critical mass by the neutron reflecting properties of the U 238.

Four decades of oil flow

Managing the flow of execution between activities.

Regular budget cash flow projection

Arms flow into Somalia

It is popularly used for water flow, especially in rivers and streams, and fractions for HVAC values measuring air flow.

The article goes on to describe the streams of refugees

The remittance flow continues to be buoyant.

Flow of voluntary contributions to INSTRAW (1987 2003)

Arrow instructions direct the control flow to the left, right, up or down, and loops are constructed by sending the control flow in a cycle.

In power engineering, the power flow study, or load flow study, is a numerical analysis of the flow of electric power in an interconnected system.

In a neutron star the matter is in a state known as neutron degenerate matter, with a more exotic form of degenerate matter, QCD matter, possibly present in the core.

Sir James Chadwick, (20 October 1891 24 July 1974) was an English physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932.

133Xe has also been used to measure blood flow.

There must be a flow of financing for development.

A year later orange and white is maximum blood flow.

Concerns have been raised about the influx of cheap labor.

Finally, little oxygen is flowing to the private sector.

The influx of insurgents from Pakistan will not stop.

Many types of heart defects exist, most of which either obstruct blood flow in the heart or vessels near it, or cause blood to flow through the heart in an abnormal pattern.

Today, the flow of economy wide spending is low.

It is widely used as an indicator of international aid flow.

Those south of the Río Guaviare flow into the Amazon Basin.

The beginning of strife is like breaching a dam, therefore stop contention before quarreling breaks out.

The beginning of strife is as when one letteth out water therefore leave off contention, before it be meddled with.

That must be transformed into a substantial net inflow.

But we all know the outcome while international capital flows soared, the large net flow of capital from rich to poor countries simply never materialized.

In the winter months, the average water flow is 250 m³ s, while in the summer, the average water flow is 700 m³ s.

I become a single solid individual, separate from the energy flow around me and separate from you.

It goes with the flow of the polymer and you'll see there's an image coming up right now that shows the full thing.

So we shift gears for a minute, and say, I know television advertising. Push push.

It can be used, for example, to trace the flow of gases within the lungs.

The language shares many features of dataflow programming languages.