gamma decay

Gamma decay

Decay (46)
Gamma decay (27)
Radioactive decay (488)

Synopsis: Nuclear physics: Decay: Gamma decay:

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The radiation extends across the entire electromagnetic spectrum from radio waves and visible light to X-rays and gamma rays.

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what is known about short-duration gamma ray bursts (SGRBS). These are seen also often to explode in remote locations with no coincident galaxy detected.

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which in turn decays to a stable isotope of iron producing characteristic gamma rays. Nobody had seen directly these gamma rays says Churazov.

Using SN 2014j's gamma rays the team estimated that the mass of nickel-56 that decayed to be about 0. 6 solar masses within the range predicted by models.

That means the status of type IA supernovae as standard candles is secure. But there are still a few different ways for the explosion to happen

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Chips inside of a smartphone's built-in camera are sensitive to gamma rays; Gammapix uses its software to measure the impact of those rays

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PET imaging relies on the detection of simultaneous pairs of gamma rays produced when positron particles emitted by the injected tracer interact inside the body.

they could reduce the number of ounts or individual gamma ray pairs, they measured. This means that for the same quality of image, they could reduce the injected radioactive dose,

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a ring of nine gamma ray bursts and hence galaxies-5 billion light years across. The scientists, led by Prof Lajos Balazs of Kokoly Observatory in Budapest,

-and ground-based observatories (see the Gamma ray Burst Online Index at http://www. astro. caltech. edu/grbox/grbox. php).

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such as the transit of exoplanets across other stars, binary stars that eclipse, gamma ray bursts and so on. Capturing the changes associated with these events requires a much more rapid way of photographing the entire sky.

weeks or even months before supernovas or gamma ray bursts, looking for interesting precursor events. That will be an interesting piece of kit. vryscope systems o er a new capability:

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so a North carolina State university team is developing a new lightweight shielding based on foam metals that can block X-rays, gamma rays,

which showed that it was effective in blocking X-rays, various forms of higher and lower energy gamma rays, and neutron radiation.

it demonstrated the same shielding properties for high-energy gamma rays, though its density was lower.

In addition, it has better blocking qualities for low energy gamma rays and neutron radiation. Although it was better than most materials at blocking X-rays,

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#Metal foams capable of shielding X-rays, gamma rays, neutron radiation Research shows lightweight composite metal foams are effective at blocking X-rays, gamma rays and neutron radiation,

To that end, she and her colleagues conducted multiple tests to see how effective it was at blocking X-rays, gamma rays and neutron radiation.

The researchers tested shielding performance against several kinds of gamma ray radiation. Different source materials produce gamma rays with different energies.

For example, cesium and cobalt emit higher energy gamma rays, while barium and americium emit lower energy gamma rays. The researchers found that the high-Z foam was comparable to bulk materials at blocking high-energy gamma rays,

but was much better than bulk materials--even bulk steel--at blocking low energy gamma rays. Similarly

the high-Z foam outperformed other materials at blocking neutron radiation. The high-Z foam performed better than most materials at blocking X-rays,

but was not quite as effective as lead.""However, we are working to modify the composition of the metal foam to be even more effective than lead at blocking X-rays

--and our early results are promising, "Rabiei says.""And our foams have the advantage of being nontoxic,

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and block X-rays, gamma rays and neutron radiation, according to a study from North carolina State university. The discovery means the materials could be useful in spacecraft, the nuclear industry and in medicine.

The researchers found that the high-Z foam was as good as the bulk materials at blocking high-energy gamma rays,

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