Radioactive Isotopes

Alpha particles, beta particles and gamma rays. Alpha particles are helium nuclei with a +2 charge, Big, heavy and slow moving, don't penetrate into materials, Very ionising, Blocked by paper. Beta particles are high-energy electrons with a -1 charge; Quite small, move quite fast, Penetrate materials moderately, Ionise moderately, for every beta particle emitted, a neutron turns into a proton in the nucleus, some are blocked by thin Aluminium, but certainly blocked by tissue. Gamma rays are electromagnetic waves with shorter wavelength (higher frequency) than x-rays, Opposite to alpha, Penetrate materials well, Weakly ionising, blocked by 7 cm of lead.
dupuis.shawbiz.ca

Category:

Education

Tags:

• radiation
• alpha
• beta
• gamma
• Geiger
• Counter
• physical
• science
• dupuis.shawbiz.ca

[aidlasx]

They are only radiation sources, not enough activity to do much. I guess if you cracked open the Alpha α and ate it it would be bad.

[cardie1234]

Geiger Muller Tube actually love ;)

[mfa3290]

it is a very low count. not dangerous at those levels. thousands of gamma rays going through your body right now from background radiation. i used to work at a nuclear power plant.

[TopLeadGamers]

OOH MY GOD, why are you exposing yourself to GAMMA RAYS WTF, you can get genetic mutations or CANCER!!!!!!!!!!!!!!!!

[idiotkrati]

dude, you are exposing yourself to gamma lol wtf

[TheReasonWhyGuy]

@Scelenaarwen "so they'r not exactly a particle"

Debatable semantics...

The point being that they are neutral in charge.

[Scelenaarwen]

@TheReasonWhyGuy Erm.. kind of . Photons are just quants of energy. They are electromagnetic energy that have the behaviour of a particle and a wave at the same time, so they'r not exactly a particle, but i dont think they have any charge. They are like the smallest portion of energy possible (Quant) i think because they are for light they are called photons.

[TheReasonWhyGuy]

@Scelenaarwen because unless I'm still mistaken... photons are neutrally charged particles

[Scelenaarwen]

@TheReasonWhyGuy oh .. yea that makes sense =D

[TheReasonWhyGuy]

@Scelenaarwen Someone already answered this...

They said it's because the gamma ray knocks off electrons from the detector atoms.

[Scelenaarwen]

@TheReasonWhyGuy im no experet but i guess its because gamma rays are electromagnetic energy, not a neutrally charged particle like a neutron. So im assuming it has something to do with electromagnetic induction, i guess. Go to your local university and ask, i bet you they'r answer will be more fulfilling.

[tommeasor]

Very interesting and informative video.