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2006-12-27 09:35:59 · 8 answers · asked by Rawkus 3 in Science & Mathematics Physics

8 answers

Absolutely. Cosmic radiation does so readily. High-energy gamma will also pass through a reasonable amount of lead.

2006-12-27 09:40:14 · answer #1 · answered by Robert, amazingly enough. 2 · 0 0

If you can trust the government here's what they have to say on that question.

Types of radiation

The term "radiation" is very broad, and includes such things as light and radio waves. In our context it refers to "ionizing" radiation, which means that because such radiation passes through matter, it can cause it to become electrically charged or ionized. In living tissues, the electrical ions produced by radiation can affect normal biological processes .

There are various types of radiation, each having different characteristics. The common ionizing radiations generally talked about are:

* Alpha radiation consists of heavy, positively charged particles emitted by atoms of elements such as uranium and radium. Alpha radiation can be stopped completely by a sheet of paper or by the thin surface layer of our skin (epidermis). However, if alpha-emitting materials are taken into the body by breathing, eating, or drinking, they can expose internal tissues directly and may, therefore, cause biological damage.

* Beta radiation consists of electrons. They are more penetrating than alpha particles and can pass through 1-2 centimetres of water. In general, a sheet of aluminum a few millimetres thick will stop beta radiation.

* Gamma rays are electromagnetic radiation similar to X-rays, light, and radio waves. Gamma rays, depending on their energy, can pass right through the human body, but can be stopped by thick walls of concrete or lead.

* Neutrons are uncharged particles and do not produce ionization directly. But, their interaction with the atoms of matter can give rise to alpha, beta, gamma, or X-rays which then produce ionization. Neutrons are penetrating and can be stopped only by thick masses of concrete, water or paraffin.

Although we cannot see or feel the presence of radiation, it can be detected and measured in the most minute quantities with quite simple radiation measuring instruments.

2006-12-27 18:00:43 · answer #2 · answered by Old guy 124 6 · 0 0

neutron radiation can pass through several inches of lead. Cosmic rays several feet to 100's of feet, depending on energy. neutrinos can pass through lightyears of lead.

2006-12-27 18:34:25 · answer #3 · answered by Dr. R 7 · 0 0

Alpha rays can't pass through paper
Beta rays can't pass through wood
Gamma rays can't pass through lead under 20mm thick
So, gamma rays are the strongest and need 2cm of lead to ensure safety!

2006-12-27 17:49:49 · answer #4 · answered by So_Long_Marianne 6 · 1 0

Gamma

2006-12-27 17:39:19 · answer #5 · answered by Anonymous · 0 0

there may be, but lead will block out quite a lot

2006-12-27 17:38:12 · answer #6 · answered by duster 6 · 0 0

yes plutonium after\ massive doseage

2006-12-27 18:12:57 · answer #7 · answered by TOODERBITS 1 · 0 0

Yes, be afraid, be veeery afraid.

2006-12-27 17:38:03 · answer #8 · answered by motorcitysmadman2 2 · 0 0

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