deflecting ionizing radiation with supermagnets

[glasstronic]

I bet you get lots of marriage proposals.

[peppeddu]

Fascinating

[electrodacus]

Well done experiment.

[Madowstone]

Ehmm... i guess you are just doing a joke or you are stupid.... lead or plumb is blocking radiation as everybordy knows.

[bionerd23]

@Madowstone

either you're making a joke or *you* are stupid. o_O

lead only blocks radiation if it's in the way between the radiation and the detector, which it is not in this case. that's why they put a lead apron ON you when you're having an x-ray exam, instead of leaving it just in the corner or on the table next to you... it's only useful if it's between YOU and the BEAM, same as it'd only block rays if it was between the SOURCE and the GEIGER MUELLER TUBE in this video...

[Madowstone]

@bionerd23 You think that particels move in straight lines, but they do not move in straight lines, that your error.

[carpetmonk]

what is the hottest reading youve ever gotten? and have you noticed BR of your apartment raised? 

[bionerd23]

@carpetmonk

hottest reading? hmm, 3000 uSv/h in a nuclear medicine operating room (brachytherapy) watch?v=xJaJUtHO4bI - and about 5,000,000 uSv/h (5 Sv/h) from an x-ray device.

background radiation in my apartment is not increased with proper shielding in place. i got a HUGE amount of diver's lead (lead bricks; very handy, you can just duct-tape them together and put them around stuff) for that, plus a steel safe for the smaller sources, like these disc sources etc.

[mythhealer]

If Gama is a photon, (light) use a makeup mirror as a deflector!

[bionerd23]

@mythhealer

that's not a bad idea actually! gamma rays are very penetrating, so really most of them will move THROUGH the mirror instead of being deflected - but there were experiments for gamma deflection with a very special kind of mirror, i remember reading about... cant remember what it was exactly off the top of my head, but yeah.

[TrappeTrinn]

how can you touch those things without getting radiation sickness?

[jjovereats]

If I used that dosimeter, it would be in my school to check that radiation is not getting me depressed.

[sovageek]

What is the orientation of the magnets? I am guessing they are opposing N N or S S arrangement or else the lead clip would deform violently and the magnets snap together. Electrons enhancing the counter are like a microwave oven using HV pulsed DC current to oscillate through a tuned chamber to cook the food. Like blowing air across the neck of a bottle to make a sound only at the GHz range. The magnets are the 'air pressure' and the DC follows the right-hand rule.

[zs6djm]

Thanks for all the interesting videos.

I was just looking at the CCD experiment vid and it reminded me of some Chernobyl videos where you can see flashes on the recording aswell.

[graymalkin1234]

Ema576, I think you ate thinking of gravity...

[ema576]

acualy light has mass and is a=effected by magnetic fields, thats why there are stars we can see all year.

[sciencoking]

light is not a charged particle, therefore the lorentz force has no influence on it.

And what do stars around the north pole have to do with magnetic fields?

[KarbineKyle]

Nice! 5/5! Do you have any B+ (Positron) emitters, Like Sodium-22 i.e.? Have you ever thought of taking a B- & a B+ source, & using magnets to bend them in the right direction to cause Electron-Positron Annihilation? I was wondering, if you set up a magnetic tube made of something magnetic like Iron, and encase the tube in strong Nd ring magnets around the tube, similar to a particle accelerator, & put a small hole in the tube and put the sources into the tube. It's just an idea I want to try.

[bionerd23]

i think magnets strong enough for a particle accelerator would just kill my computer and stuff, lol. ;)

i do not currently have a positron emitter, nope, but i'll surely do a video if i ever get my hands on one!

[AJApper]

@KarbineKyle Positron-electron annihilation happens immediately the moment a positron appears. You don't need magnets for that. A PET scanner detects the annihilation quants generated by for instance 18 Fluor-glucose positrons combining with electrons that are abundantly present. This annihilation result in 0,55 MeV gamma radiation.

[vitorix24]

barium or the other element radioactive? :?

[bionerd23]

barium 133 is a radioisotope of barium, so yes, it is radioactive. same as strontium 90 and caesium 137.

[vitorix24]

yes i know! lol. but... ceasium radioactive... hum... its react with water, air( oxigen an nitrogen) :D

[pioneerz450]

they will continue their lives as helium atoms, and refuse to participate in my little experiment LOL

[Gheven1]

Thank you for your very interesting videos! ;-)

[sn1pe352]

can I please have this video?

[bionerd23]

go to keepvid dottt comm, and you can have ANY youtube video. =)

[BOROPHRYNUS]

@bionerd23 hi,where can i find these discs of radioisotopes?

[clony101]

maby you should of put the gamma scout pointed to one of the polles

[clony101]

omg you have never fliped the disk sourse before

[sn1pe352]

I think I'm in love with you

[amethyst8teen]

Which way are the poles of the magnets aligned in the video? Also, is that your radium watch on your wrist?

[bionerd23]

i think the one facing away from the camera while the deflection is picked up by the gamma scout SHOULD be the northpole.

i am not wearing my radium watch at random; it's too fragile, e.g. not water resistant. the watch i am always wearing is a binary watch. :-)

[jrbpyro101]

will the gamma scout measure radiation in counts per minute?

[bionerd23]

yup, it is capable of doing that... and counts per five minutes, or counts per hour, or whatever you want to set it to.

[sn1pe352]

can I please have this video for my page and videos on gamma rays,particle accelerators,cosmic rays etc, and for my theory/explanation on how E=MC^2 being incorrect

[bionerd23]

sure, embedding is enabled.

[Ch3mG33k]

Be careful placing beta emitters near lead. You don't wanna create too many x-rays.

[bionerd23]

true, i have more than enough gamma-rays around that i should worry about already. ;-)

thats another thing i want to do a video on - bremsstrahlung. i've tried it with caesium 137 and got no noticeable result; but maybe Sr-90 will work better, as there are no gammas initially that could interfere with the measured bremsstrahlung quantums.

[Blinkwing]

hey, ich hab dir schon ne nachricht geschrieben, doch ich wollte lieber 2ma fragen:

Wo kriegst du denn eigentlich deine isotope her; auch die "ungefährlichen", wie quecksilber oder zinn usw.

[sciencoking]

die seite heißt WE-WE-WE-PUNKT-unitednuclear-P­UNKT-KOMM

[Blinkwing]

ja so dumm bin ich auch net, sry, aber die liefern nur innerhalb amerika xD

[sciencoking]

hmmm.... das könnte unter umständen schwierig sein... :S

[Blinkwing]

ja, wo kriegst du dei denn her?

[sciencoking]

ich hab ja gar keine :P

[LechuCzechu]

Next thing: correct me if I am wrong but a good way to get a large amounts of electrons/betas is obtaining a high voltage vacuum tube of some sort - like the first models of Roentgen tube (Crookes tube), but without the plate emitting X-rays. If its true, does it makes an X-ray tube a simple linear accelerator of some sort?

BTW: when I read that you plan doing that I tried do do it too, but I had only alfa emiter so ofcourse I failed (maybe a vacuum chamber would help ;) .

[bionerd23]

well, considering an x-ray tube is the same thing as a TV (crt, not flatscreen, of course), i guess it could possibly be called a linear accelerator; but i'm not sure, as no acceleration actually happens within the tube, but only deflection; the electrons have their speed (energy) due to the 25 kV supplied by the flyback transformer.

[bionerd23]

the only difference in an x-ray tube is that it is not shielded (TVs use graphite and lead glass), AND the emitted radiation is much harder due to higher energy; x-ray tubes are supplied with 40-80 kV for typical applications. of course, a normal rectifier-diode cannot handle the voltage an x-ray tube can, but from the basic architecture, they're the same.

disclaimer: i am relatively new to this and do not guarantee the accuracy of the information supplied. ;-)

[LechuCzechu]

Could you please draw the next time lines of magnetic filed and polarisation of the magnets? That would help to demonstrate the Lorentz force.

And now theoretical question: if I had a sort of coilgun closed in a form of torus, could I make a simple particle accelerator for the beta particles/electrons? Can magnetic field give them kinetic energy or only deflect them? I know ofcourse about syncrotrons but they use electric fields. Is this achievable with magnetic field too?

[bionerd23]

uhm, i can try - my drawing skills arent all that great, you see. but good idea.

well, you can accelerate electrons in a magentic field, yes - look up cyclotron, it has been done about a century ago already. :-)

[Freeman101]

bedenke nochmal, dass du jeden tag mit giftigen stoffen zu tun hast.

irgendwann artet das mal in hautkrebs oder anderen krankheiten aus !

wenn michael jackson schon nur wegen handcremes in jahrzehnten hautkrebs bekommt, was wird dann mit dir geschehen ?

irgendwann wirst du einsichtig sein, aber dann kann es schon zu spät sein !

dein hobby ist gefährlich !

bedenke es

[bionerd23]

bedenke auch, dass DU es jeden tag mit giftigen stoffen zu tun hast... und das im schlimmsten fall, ohne es zu wissen. bedenke auch, dass dein leben irgendwann einen toedlichen ausgang haben wird. ueber die strasse gehen ist gefaehrlich! wenn du vor lauter angst lieber ein langes, aber langweiliges leben haben willst, okay - ich auf jeden fall trinke heute abend 2-3 bier und verkuerze mein leben durch das gift ethanol um weitere 4 minuten. vielleicht krieg ich ja leberkrebs...

no offense. :-)

[JaksProductions]

QIf I had my mouth and stomach full of iron, and in the ceiling full of neodymium magnets, wud I by floating, if the gravitational pull from the earth and the magnets would be equal?

[bionerd23]

uh, i guess that'd be very hard to archive. assuming you weight 60 kilos or more and the magnetic field is strong enough to pull you up, it is very likely that either the iron would tear you to bits or, if it's not sharp enough, would at least squish your inner organs (the stomach is close to the heart, for example), so you'd be hanging like a meat puppet, dying from internal bleeding. ^_^

[JaksProductions]

okay...In our school there is an small earth model(dun remember how its called:D), It has two electromagnets- one on top, and one in the bottom. The earth model floats in the air :D, the thing is amazing, since its veryhard to achive this 0 gravity thing x0

[JaksProductions]

a small not an sorry :(

[10mintwo]

OMG! Now if you back-calculate the intensity of the magnetic field by determining the larmor radius of the curved beta particles, I will shit on the floor!

[bionerd23]

lol, i wont do that, dont worry... i'm pretty bad at maths. your floor will stay nice and clean. =)

[AScannerClearly]

Wow, I never imagined that the magnetic deflection would be so easily detectable like that, it made a huge difference! Awesome as always =P

[sciencoking]

2:45 RANDOMNESS FTW lol

i´d say this was a complete SUCCESS!!! :D amazing! 5*

[polonium9]

interesting... i should try this but on a much smaller scale with americium