The Deflection of Beta Particles

TURN YOUR SOUND UP!
This radiation detector in this video makes clicking noises to indicate the presence of radiation: You will need to have your sound on in order to follow the video.
Beta particles are emitted from certain unstable nuclei. When passes through a magnetic field, they are deflected in accordance with the Left Hand Rule (the motor effect). This video demonstrates this effect. The results can be show to be consistent with the charge of the beta particles.
You will notice that during the video I use tongues and a clamp to avoid getting too close to the radioactive source. I also minimised the time for which I was using the source and kept it in a lead lined container when not in use.
I realised, after editing the video, that at times it looks as though one of my hands is passing very close to the beam. Thankfully this was not the case - I was careful to keep both of my hands out of the beam at all times.

[@neeruprashar8762]

Thank you sir for taking us beyond books

[@parimeshsridhar2581]

Thank you sir for these experiments. . . . Hope you get many more subscribers.

[@arandomzy]

Thank you for doing all the experiments which otherwise I would have just read in books :)

[@arooran27]

Yeah me tooo

[@arooran27]

✌👍🙏😎🔥✅👌🤏😎😘🥰

[@Galactorate]

great demonstration surprised though that you did not mention this as the Lorentz force (or do I now win a prize?)

[@jeremiahmullikin]

Any way you can capture beta particles to use in electronics?

[@filteredview9302]

Nice video, Passing your hand through the source wouldn't do any harm though, you could have touched it as well :)

[@QuantumBoffin]

The first two sources are relatively low level, but the radium could be dangerous if exposed to it for two long. (Holding you hand in front of it for about 1 minute would give you a level of exposure deemed to be unsafe.) People need to know, however, safe handling procedures, which is why I follow them even with the low level sources.

[@filteredview9302]

@@QuantumBoffin hmm. I think people need to know that those levels of radiation is completely safe, although not proven 100%. if you look at people being exposed to those levels of radiation (that the radium emitted in this video) from a radiological source, (daily) you see no incline in health effects whatsoever, and my theory is that the radiation is too low to cause any effects than is UNREPAIRABLE by the human body. Radiation in of itself isn't dangerous. because it happens at an atomic level. The activity of those sources in that video proves that, because you only hear a couple of counts..(a couple compared to what is considered dangerous) by knowing the counts one can actually calculate the distance between each particle to determine if it causes any chemical changes to the body. Imagine a source that emitts 10bq and you could detect all of them, that would be 10cps, it would sound radioactive to a geiger counter, and it would sound like what you hear in the movies, but it's as harmless as life itself. that's where the determination of radioactive harm should stem from, it's ability to ionize. What i am talking about is pure radiation, Not radioactivity. a radioactive particle can enter the body and cause internal harm that's something else.

[@filteredview9302]

@@QuantumBoffin you could essensially be exposed to 500 uSv/h full body dose 24/7 and you would be fine. rather than 0.2uSv which is normal. probably a slight increase in cancer, more fatigue and less energy is to be expected. but not radiation sickness.

[@stpmpre-u]

What if put the side of south magnet to beta radiation? Will there nothing radiation anymore?

[@QuantumBoffin]

The magnetic field deflects the beta particles, pushing them upwards.

[@christophvonknobelsdorff1936]

can you maybe show this with ferromagnetic particles? ore with a pen in xy/xz at position -yoy/-zoz on paper? how large is a äquivalent electromagnetic feald in kWh? what's with an kristal in a cool plasma (with water + peaco-speaker)? .. ore any magnets in a curved line .. .. please make more 👍

[@pesgamerpro4652]

Plz sir can u explain me what was the purpose of the magnet. I could see that the Gieger Muller tube produced much sound above the North and South poles but less sound behind the poles. So why was it happening?

[@QuantumBoffin]

The magnetic field deflects the beta particles, pushing them upwards.

[@pesgamerpro4652]

@@QuantumBoffin ok understood...but we could also have passed current in a wire and see the beta particles deflect towards the negative terminal

[@Sanjana-amazing-craft]

Sir I m ur big fan.

[@QuantumBoffin]

I'm glad you like the videos. 😊

[@jayantzalki8039]

@@QuantumBoffin There are many experiments I want to do myself but I lack resources and can only do simple ones, your videos really help me, Thank you and keep up the good work 😊

[@suryanshkr.8373]

First view from Indian student !

[@suryanshkr.8373]

I like your videos 😻 And I can't resist watching and learning from them !