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"Bombarding a thin sheet of beryllium by alpha particles" generates a neutron flux.
In nuclear weapons design, it is sometimes necessary to produce a heavy flux of neutrons at just the right instant in time, relative to the assembly of super prompt critical mass.
It turns out that beryllium is a good producer of neutrons when bombarded with alpha. The alpha source is often polonium. One design has the two in sheets that do not interact with each other, due to separation with gold and nickel, until the initiating shock wave compresses them together, along with the mass of fissile material, usually plutonium.
What else can I help you with?
A kind of antelope begining with G?
Guessing you meant "antelope" then I think you meant "GAZELLE"
What dyes are used to color earthworms?
You are not meant to!
What was meant by John Maynard Keynes' term a Carthaginian Peace?
He was talking in 1919 about the peace process and meant it was a temporary peace, leading to another war.
What is that Democratic republic?
Historically, "Democratic Republic" usually meant "socialist". "People's Democratic Republic" (or "Democratic People's Republic" meant "really, REALLY socialist".
What was Durer originally meant to follow his father as a?
goldsmith
What is meant by radio active elements?
Radioactive elements are atoms that are unstable and undergo a process called radioactive decay, where they release energy in the form of radiation. This radiation can take various forms such as alpha particles, beta particles, and gamma rays, and can be harmful to living organisms if exposure occurs.
What is meant by alpha label on tax return?
What is meant by the alpha label on a tax return is the letters that are to the left of the filers social security number on an IRS label. These are used by the IRS to verify the filers social security number.
What is meant by the word radioactive?
emits radioactive particles.
Why beta has the least penetrating power?
It is not clear what is meant by 'beta'. Please rephrase it in a new question. It's pretty obvious this question is about radioactivity and the beta particles produced by that. In fact beta particles are not the least penetrating. It is the alpha particles that penetrate least. That's because they interact easily with atomic nuclei. Atomic nuclei are positively charged, like alpha particles, causing strong repulsion.
What is a sentence with bombard in it?
"Time to go bombard some Russians!""Captain! We're trapped! They keep bombarding us!""Our team kept bombarding the other one in a water balloon fight!"(No offense meant in these sentences. Simply used as demonstrations)
What is meant by radioactive pollution?
high-energy subatomic particles
What were the conclusion of Rutherford alpha particles scattering experiment?
He observed that alpha particles can scatter (bounce) backwards off of matter. If matter was evenly distributed, the high energy particles should go through it like "a 15 inch shell through tissue paper" to paraphrase Rutherford. The fact that they bounced back meant that the charged matter (protons) must be distributed in small dense clusters so that the alpha particles (helium nuclei) hit these charges like a billiard ball and, if hit directly, could bounce straight back. This lead him to the understanding that atoms have a small central charged nucleus surrounded less densely by negative charges (electrons). It was, in some sense, the end of nuclear physics.
What does foreign particles?
Something that is not meant to be there and generally causes harm or reduces performance.
What are two particles that matter have in common?
Atoms and molecules... If that's what u meant
What are facts about brylliam?
It seems there might be a spelling mistake in your question. If you meant to ask about beryllium, it is a lightweight metal that is strong and resistant to corrosion, commonly used in aerospace and medical equipment due to its properties. Beryllium can be toxic if inhaled as dust or fumes, so proper precautions are necessary when handling it.
What is meant by a radioactive element?
A radioactive element is an element with an unstable nucleus that emits radiation as it decays into a more stable form. This radiation can be in the form of alpha particles, beta particles, or gamma rays. Radiation emitted by radioactive elements can pose health risks and is used in various applications such as medical imaging and energy production.
What is bestosis?
I assume you meant: Asbestosis? Which is a lung disease resulting from the inhalation of asbestos particles.
