Radioactive Isotopes

[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

[tommeasor]

Very interesting and informative video.

[swordfish1946]

How cool are these radiation samples. Literally cute ones :)

[Celler2]

yeah go Gamma :) you are a cool teacher to have.. I would have so many questions for you :)

[Celler2]

yeah go Gamma :) you are a cool teacher to have..

[Celler2]

yeah go Gamma :)

[pebblesandwaves]

Thankyou for is video. It was very helpful

[gardiendelanuit]

It can detect alpha particle? Are you really sure?

[applesweeter]

your should never handle radioactive isotope with your hands.

For me, radioactive material is too much for toy playing.

[tomek123kotek]

no... you need gordon freeman to stop the gamma

[tomek123kotek]

geiger counter aka clicky meter

[muumikopio]

EVERYONE gets radiation from nature. For example: Radon gas, the ground is full of it. Its normal. This videos comment section is full of blind fear.

[cchj768]

* and radiation received from other places, that any radiation from sources you will handle will make no difference to anybody which maybe exposed to them makes me sick. What is even worse is you seem to support the crap teacher, msnye, who doesn't consider any of the children around her. Stop wasting my time by trying to counter my argument with pathetic and weak responses. You don't understand that ionising radiation is UNSAFE. Go home.

[scrfce123]

@cchj768 Radiation occurs everywhere in nature. As a result of this, the average human will breathe in billions of naturally occurring alpha and beta particles during their lifetime.

What makes radiation dangerous is its energy - at only 18 KeV, decay products of tritium hardly have any energy. To put this into context the average X-ray machine operates at around 200 KeV. Incidentally, X-rays are also ionising.

BTW, look up hormesis.

[cchj768]

* to improve their own safety, I don't know. It is the principle. It is not just about handling weak sources, but the handling of any radioactive source. Dentists, radiographers etc all follow these procedures and are very safe, not just for themselves, but their patients other staff etc. They don't randomly expose the entire hospital/area with radiation which you seem to imply. The idea that you neglect other people's safety just because you conclude that with all the background radiation *

[LecceDiPane]

LOL i have to say despite the activity of the sources, you should never handle them without the proper equipment and protective clothing. If not for your own benefit at least to set and example to the viewers.

[wowggscrub]

what about x-ray?

[unclepoepoe]

OKAY.... why did you just hold expose yourself to gamma radiation!!!????

[Flython]

@unclepoepoe only a little for a short period of time wouldn't have any major effect.

[vmelkon]

@unclepoepoe You can think of gamma rays as x-rays. People get x-ray when they visit the dentist. Also, these are weak sources of radiation. You can still take a picture of your bones with that gamma ray source given enough time.

[AirCrackerX93]

Thank you very much, i appreciate your video :)

[manyinwong]

won't she get cancer from that?

[WesternWhiteWolf]

Awesome Geiger counter! What units does it measure radiation in, and how high does the meter go?

[6534139]

now what else gamma does it gives you cancer

[tickdog2k7]

gamma passes straight through your body

[8462995]

Cmon Guys use your Brains more Carefully the reason why she can have or even held the Radioactive materials in the Testing Right now it's only at safe levels of Radiation... Not really harmful...

[fxcat123]

why is she not wearing gloves? or anything protective? help me out im a noob

[chemiealex]

Sorry for my English - I'm from Austria:

Your body can absorb a certain amount of radiation in a year without having problems with it.

And this radiation wasn't that much... ;-)

[ema576]

omg its not like i ndidn't already now that!

[omiblingbling]

she must be a freaky which.....sounds soooo freaky

[cardie1234]

Geiger Muller Tube actually love ;)

[dterence7]

Why would she still be touching them though, even if they're slightly radioactive. Alpha.... ok, but beta and gamma.....!!

[Agentoxedo07]

Holy-Terrorist:> >_> annd what this fonction ??

[martyn347]

where did you get this is it possible to buy that?

[brentsearight]

if those are radioactive y r u touching them?

[lukevash]

radioactivity is in every day life what she is holding can not hurt us its so low that playing with it will do no harm

[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.

[dterence7]

Yep! lol

[unclepoepoe]

@aidlasx Yeah, if you burned the Alpha α and breathed it, you would be harmed too.

[mastermalpass]

@aidlasx Alpha is one of the most dangerous of the three Radiation types apparently. As it cannot penetrate skin, once it's got into your body it's gonna have trouble getting out again.

Our school's samples were stored in lead cubes, with a hole in the side that could be pointed at the giger counter. If we looked directly at the hole we could see a glow inside. We even had Uranium Ore... But we weren't allowed to look down that one, even though it's radiation was lower than the other samples.

[jarrodmaddy]

O_o

[abhinayan27]

how do gamma particles get detected if they r neutral?

[MoHorses]

Through "ionization".

[Gniruks]

its gamma rays, dimwit

[nintendo625]

you sound like nevil from icarly

[TheReasonWhyGuy]

"Each time a radioactive particle enters the detector tube an electrical impulse is sent to the counter..."

How do the neutrally charged gamma rays get detected?

[nick94110]

my understanding is that the ion chamber does not measure the electric charge of the particle/ray, it measures the charge created when the ionizing radiation knocks out electrons and charges the air in the chamber. The detector measures the electric charge of dry air and is expressed in roentgens (R)

[cube11235]

@TheReasonWhyGuy Alpha, beta, and gamma radiation are all forms of ionizing radiation. What this means is that when an atom is struck by one of these particles or photons it frees some of its electrons. The counter detects these loose electrons.

[scrfce123]

@TheReasonWhyGuy Gamma rays may be neutral (in terms of charge) but they are a form of very high energy EM. This means that like alpha and beta particles, they can have a direct effect on a the charge of surrounding molecules - and they can cause ionisation as a result.

[TheReasonWhyGuy]

@scrfce123 so the high energy of gamma rays enable their influence of the charge of surrounding matter?

[scrfce123]

@TheReasonWhyGuy Yes. EM radiation with a few electron volts of energy can strip molecules of their electrons - hence, the stripped particle becomes an ion. This is exactly what happens when a gamma ray enters a Geiger-Muller tube.

[TheReasonWhyGuy]

@scrfce123 Thanks :)

[BartManNL]

@TheReasonWhyGuy The detector tube is charged internally. The radioactive particles ionize the gas in the tube by transferring energy to it. The ionized gas conducts electricity (a bit like a lightning strike) so the ionization (and thus the particle) can be detected by an electrical impulse. The energy from the particle itself is not detected, only the ionizing effect.

[TheReasonWhyGuy]

@BartManNL Dude, when you go to answer someone's question, try making sure that someone else hasn't already beat you to the punch ;P

[jjovereats]

@TheReasonWhyGuy The same electron cascade.

[gvsfgdf]

@TheReasonWhyGuy Gamma ionizes he gas

[TheReasonWhyGuy]

@gvsfgdf OMG... I'm getting sick of this... Look below before you presume to be the first to answer a question...

I should probably just delete my question as to prevent this... however then people seeing the answers wouldn't know what they are answering... anyway... this has just been annoying me.

[pandemicrazor]

@TheReasonWhyGuy exactly

[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.

[TheReasonWhyGuy]

@Scelenaarwen Someone already answered this...

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

[Scelenaarwen]

@TheReasonWhyGuy oh .. yea that makes sense =D

[TheReasonWhyGuy]

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

[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 "so they'r not exactly a particle"

Debatable semantics...

The point being that they are neutral in charge.

[Fallschirmjaeger963]

i hope for You that you aren't radioactive now ;)

[magicmaker15]

FarmerNinja: What the fuck!? That was random for this particular video.

[tyler98144]

hahahahahaaha

[kway94]

why post this vid any wayz XD

[igotaapple]

fireworks! :D

[EssiacHempLaetrile]

CANCER CURE = RICK SIMPSON'S HEMP OIL

[LovelyRadiation]

you have to be exposed to a lot of radiation to get cancer from it.

[EssiacHempLaetrile]

Considering someone is already battling Cancer any Radiation is not helping the situation.

Now they are using Sodium Fluoride in place of Isotopes to detect Cancer.

If your curious what Dr. Hardy Limeback, former President of the Canadian Association of Dental Research and current Head of Preventive Dentistry at the University of Toronto, says about Fluoride.

You Tube "Fluoridation - At Any Cost - Part 1 of 3"

Or visit my You Tube page & learn the truth about Cancer.

[LovelyRadiation]

give me one good reason to not mark your messahe as spam

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Dr. Mechoulam ... "we gave THC oil drops 400 times to children 1 -13 years old with Cancer & prevented vomiting & nausea 100%"

Links to the 5 quotes are located on my You Tube page in my secondary video & below my profile picture.

[shadyman2000]

You can hear the mic chirping faintly when the gamma disc is directed towards the camera. cool.

[knowledgeis4me]

too bad you didnt demonstrate neutron radiation.

[cdlldc111]

that is beta

[knowledgeis4me]

no, beta radiation is positron\electron particles

[SignaFilms]

ive drank radioactive fliud and the next day i took a hella bigg ass shit frekin clogged the toilet and smelled a million ass mixed with my friends hella stanky breath

[magicmaker15]

Lmao! Signafilms

[MERULZ69]

she plays around with radioactive isotopes and toxic lead, surely she's a supermutant hero by now

[deltamax69]

alpha are the most potencially dangerous for they can travel in the air on food in drink , everything

[cube11235]

All radioactive particles can travel through those mediums.

Also, the danger of certain types of ionizing radiation depends on the circumstances. For instance, it is pretty safe to hold alpha emitters but very dangerous to inhale or ingest them. It is believed that the majority of the damage from alpha emitters inside the body comes from the recoil of the larger nucleus after emission.

[deltamax69]

oh yeah completely

[NoBuyForYou]

Correct me if I'm wrong, but isn't Beta stopped by Foil if the foil is thick enough

[maximuslt90]

yeah it need to be like 5 mm or somethin

[markay9tyfawr]

hey... u should be carefull with that gamma emitter... :/

[nearadyn]

good demonstration. Yes, people do worry too much. A little ionizing radiation can brighten your day!

[msnye]

LOL! oh my - I didn't realize this had sparked up so much discussion. First of all, these samples are so "cold" (low radiation), my Geiger counter is on it's most sensitive. I had to cheat on one of my samples because it's pretty near dead cold. These samples were sold to schools for demos - 20 years ago. I know what I'm doing and as much as the samples are cold and safe, I do not allow students to handle them only to eliminate paranoia and unnecessary questioning. Quit your worrying.

[cchj768]

@msnye Quit your worrying? Stupid bitch. You are failing your job as a teacher to provide adequate safety for your students. So what if they are "cold"? Are you telling them that it is alrgiht to pick up radioactive samples without any protection? Anything radioactive is not safe. Stick those samples up your fat ass and see what they can do to you.

[cube11235]

@cchj768 I guess you failed high school physics and chemistry.

[cchj768]

@cube11235 No I didn't. I achieved A* in all science subjects and will study them further in A-levels and at university. As a reply to your ignorance, fuck you dumb cunt.

[cube11235]

@cchj768 That is hard to believe. You should know the safety of handling weak radiation sources if what you said were true.

[cchj768]

@cube11235 It is very hard to believe that you have any understanding in nuclear physics. Handling of any radioactive sources, no matter how weak they are is unsafe. Proper precautions and procedures should be taken to make sure that radiation dosage received from samples is as low as possible. However, do what you like with radiation sources. I don't care if you reduce your lifespan. If you are such a dumb prick, then I would be happy for you to continue your habits.

[larrylob1234]

@cchj768 lol you win the argument :)

[cube11235]

@cchj768 The average human is exposed to around 2.5 millisieverts of ionizing radiation per year from natural sources. That is 500 times more than the average human is exposed to from man made radiation sources. There are areas in which humans are exposed to many times more than the average and do not show any signs of shortened lifespan. The amount of radiation given off by the sources this woman is using does not compare to the average exposure.

[cube11235]

However, this does not mean it is a good idea to stay in close proximity to these sources unshielded for long periods of time. I'm pretty sure the woman in the video puts them away properly when she is done using them for demonstrations. Be my guest, though, continue to be a rabid zealot about the dangers of extremely weak radiation sources. I hope you throw a fit every time you receive an x-ray from the dentist. You don't want to know how much radiation you are exposed to from that alone.

[cube11235]

If you want to debate someone on YouTube about the dangers of radiation expose, check out Bionerd23's channel.  She knows quite a bit more about the subject.

[cchj768]

@cube11235 Exposure to background radiation cannot be avoided. However, exposure to radiation from sources which you are handling with knowledge of their radioactivity can be reduced with proper procedures and techniques in handling and storing these sources. I am not being a rabid zealot. It is common sense and safe. Why you hold such disdain and comtempt towards simple procedures which improves safety for yourself and people around you as well as teaching inexperienced people proper habits *

[cube11235]

@cchj768 You are being a rabid zealot. Have you not looked at the language you have been using. Just look at your first post.

The problem you have here is that you think these samples need to be handled to the extent of waste from nuclear facilities. You just can't seem to wrap your head around the fact that these sources are so low in radiation that they cause literally zero adverse health effects in the long run for the amount of time she uses them for a demonstration.

[gvsfgdf]

@msnye What you need to do to REALLY impress people is to get a 1kg sample for 98% U-235 and then eat it.... :D trust me I do it all the time....

[chalky5678]

thanks everyone who responded, you've all helped me increase my understanding ;)

[chalky5678]

gamma waves being the most penetrating of all types of radiation, just intrigued as to - aren't you at all put off of holding the source in your hands freely and encouraging it to travel through your hand, knowing it has a high probability to damage you? or did you somehow take some sort of safety precaution from this? just intrigued ;)

[suspected41]

yep

that's wat ive been thinkin

wat d hell is she thinkin

isnit dangerous?

[micmivf]

shouldnt dhe protect herself from gamma? i thought same to but alpha comes after nuclear fallout

[JeremyBechen]

Well, we must remember that damage from radiation is cumulative. Therefore, the longer you're exposed, the more likely an ionizing ray or particle will cause cell damage.

Bear in mind, also, that everyone is irradiated, constantly, by cosmic rays as well as natural, local radioactive materials in the air and in some objects, like smoke detectors.

The danger of the radiation is proportionate to the volume of the radiation. The more of it and the longer you're exposed, the worse off you are.

[chalky5678]

of course, thankyou. surely this person is still at a high risk though?

[JeremyBechen]

There is, of course, a very prominent risk, here. The rays passing through her are likely to cause cell damage, or mutation. The DNA mutation can cause one of two things: Cell Death, or Cancer.

Additionally, if she were much, much younger (not saying she's old :P), her cells would be exponentially more sensitive to radiation, as they'd be growing more & faster. Some cell types (like reproductice cells) are more sensitive than others (skin cells are relatively insensitive, as is scar tissue).

[shinshishio]

I wanna buy it.how much eh?

[micmivf]

beats me eh,

[MinnesotaFilms]

Whenever a Alpha/Beta/Gamma particle passes through the Geiger Tube it makes a Clicking noise. But some particles are blocked by certain objects

[sciencoking]

it´s not really strong, is it?

if it was you probably wouldn´t hold it in your hand would you ;)

btw some questions: how strong are the three disks in µSv/h?

Where did you get them?

are they expensive?

I know about the danger, dont worry

[fishmeats]

cool!