The "Webcam" vs. the "Particle Beam"

[freemanx2x]

What kind of particle (protons?)and at what energy are used? Would these particles create trails in a cloud chambre?

[mrthebillman]

Crank up the power a million fold and call it a PHASER!!!!

[jednoucelovy]

Just one nice piece of information a guy from CERN told us during his lecture: the combined energy of all particles circling in the LHC accelerator is equal to a speeding truck. If they need to switch it off, the particles must be directed into a huge graphite block cooled by a mountain.

[routhoula]

say how much power did it take to shoot the camera? and how much would it take to punch through a rock(imagine particle beams that replace drills)???

[SandstonRedneck2]

will a waterproof/dustproof housing protect the camera from this

[BlueStateChronicle]

Just imagine how when we used to sit in front of old televisions, those particles were blasting us right in the face. I probably still have damage from watching Star Trek.

[dahmer09]

yeah but thats not the T.V.s fault... its Kirks

[06410134]

interesante

pero no creo que funcione

[breedfreely]

@06410134 "interesante pero no creo que funcione" "interesting but I don't believe it works", Dude I'm not sure even if what you're typing here is spanish or portuguese - but around here people speak english.

[YouXKneekXIT]

gamma ray yields gabba hey ;) the ramones

[superfresshh]

hi "snort" "snort" dats cool

[MrAnytimeAnyplace]

I have a neutron here any idea how i turn it into a turnip. I am having trouble accelerating the protons at the correct angle. Is it true if i manipulate a carrot this could solve my problem ? thanks mate. please help.

[BushidoXReaper]

cool video beams and particles are awsome!!!!

[msndokaralho]

Now I know how to do old movie noise effect into my videos: Just shot some protons using a particle accelerator at the film!

Thank you very much, YouTube :D

--

Nive video, btw :)

[waxcrayonsftw]

Suggest you use a Grundig camera (FA76). I had the same problem with neutrons/

[crazyscientist]

very nice would that be easy to duplicate with the sun or some other source of particles

[bionerd23]

apparantly, alpha particles work just as well for total destruction of a CCD - see my video response. ^_^

[quantumizer]

Hi,

i don't get, why the particles/protons are visible at the impact. What is the physically effect behind that? Where can i finde any information?

Is it the ionisation of the lens matter and photon emission by recombination?

Thx in advance

[ProtonEthan]

Hi Quantumizer,

The mechanism behind the visible image is the charge deposited in the CCD when a proton strikes a silicon nucleus. This impact produces a local burst of charged secondaries, which deposit sufficient charge to cause a transient signal. The occasional sounds that you can hear are the result of a proton striking the junction of a transistor in the audio circuit. This same phenomenon can flip bits in a memory chip as well. For more info try a search web for single event effect

Ethan

[zapjaste]

"My God, It's full of stars!"

[clw132]

Time to email my representative to look into NASA contract # NNG05EB92C's use of taxpayer money. Looks like a waste of time and nothing important was learned

[SiannBeck]

Particle Man hates Webcam Man. They have a fight, Particle wins.

[d4m4s74]

not even that bad

low long does a human eye survive a particle beam?

[yetson]

How anti-climatic.

I was on the edge of my seat hoping that the camera would spontaneously erupt into flames at some point in the vid.

Still, +1 for science.

[T1ocfa1dhArLa]

Anti-climactic*

I kinda felt the same way but its not the videos fault :P

[warforlips]

So, you have the webcam as the anode? Where's the grid? If you have no grid, what causes the ion's to jump such a large potential (distance). I'm not sure about this one. But I think more work needs to be done to verify your theory.

[DrNickAG]

Dear Warforlips,

Thanks for your comment. T The particle beam is generated by a particle accelerator that is approximately 30 meters in diameter and is not shown in the picture. The proton beam is directed down a beam path that comes into the experiment room through the wall we are looking at. When it enters the room it is already at its final energy (230 million electron volts). So the camera is not part of the accelerating process. It just detects the particles.

[rodbotic]

230MeV

what current?

[ProtonEthan]

Actually, the energy was something less than 230 MeV at the webcam(I had an energy degrader in there to scatter the beam for uniformity). I don't remember exactly (as it was incidental to the demonstration), but it was likely ~ 150 MeV. The current was very, very low (I had to throttle the accelerator back by ~ 7 orders of magnitude to avoid frying the camera instantly), probably ~ 1-2 femptoAmps

[boxa888]

what about electron beams? they surely must do the same effect? old cathode ray tubes use to make xray secondaries outside the tube, so it must be able to be thrown out onto a photoreceptor like that right?? awesome work!

[MuslimGhost]

Cool. Im beaming now

[jschlosser]

For the non-scientist this is B000RING....

[roadnate]

Maybe you need to spend some time becoming more scientifically literate. This is actually pretty neat.

[lovelessinjustice]

aperture science perhaps :3

[JesuusOfSuburbia]

1:00

[DannyMinick]

IMMA CHARGIN MAH LAZER!!!!! O.O

[CoLdBLaDe]

this is complicated.

[DroogInPhoenix]

My Nikon d80 gets those spots, damn him and his machine f'ing up my camera!

[Linxoz]

I want to see some footage of a webcam placed into an indestructible box, which is then let go into a black hole. Then send an army of space chimps to retrieve it. Who ever makes it back with the camera gets a banana.

[kdwormy]

I gotta say, that is fucking amazing.

[carcosa]

Ya, it was completely amazing in kind of a subtle way.

It's interesting how the image looked like a starry night sky, an effect which is very similar in nature.

[AcryllicWonder]

Pretty cool stuff. Not every day do you get to see the makings of the universe bombarding a webcam.

[phr0sty]

can you accelerate those particles a little more then smash them into some uranium or something, that was kind of boring

[72devilz]

I've had 2 cameras in a radiation treatment lab do the same thing but much much worse after a year of being installed, when the lights were dimmed in the lab you could see the damage as colored speckles throughout 60% of the image.

[telladictorian]

Next up, Ethan will SHINE A FLASHLIGHT DIRECTLY INTO A WEBCAM!!1

STAY TUNED!

[denelson83]

FOLLOWED BY A FRICKIN' LASER BEAM!

[SoCalSpooky]

You just wasted 2 minutes and 55 seconds of my life. I want them back.

[StickyAnus]

BORRRINNGGG..... shhh were trying to listen...

[flybynightvideo]

What the hell happened at 2:22? Why is Youtube showing the "buffering" symbol even when the video is all the way loaded? Why did it go dark when the proton beam was shut off? ??

[algaretozky]

And knowing is half the battle!

[LayneRoxxx]

I once set a particle beam up that was pointed directly at my grandmothers butt hole. She liked that.

[takonis]

A similar effect can be seen by neutron bombardment as well as gamma radiation.

[bozsquad]

Fake

[Zvezdichko1]

Is this the CrATER instrument of the Lunar Recon?

[DrNickAG]

Dear Zvez,

Yes, CRaTER is an instrument on the Lunar Reconnaissance Orbiter. It will measure the effects of radiation on living tissue.

[jvangurp]

I wish I was smarter

[briantw1]

You mean you wish you were

[jvangurp]

I wished I were, or I wish I am, no I wish I was.

[briankwest]

Why didn't we see the dark image before this? Chances are the camera had these hot pixels before this test.

/b

[DrNickAG]

Dear Briankwest,

Thanks for your comment.

You are correct of course and if I had thought of it before hand I would have done that. :) If you take a completely dark image another camera you do not see an unchanging field of bright spots. Also, we have identified the time that where at least one of the pixels is damaged. This is pointed out in the video.

[fr3d420]

particles man.

[JayKeaton]

So now we know.

[razzfer]

Nice vid

I'm a bit curious, how do you go about making a particle beam shooter?

[DrNickAG]

Dear razzfer,

Thanks for your comment!

The particle beam shooter is a multimillion dollar radiation facility at Massachusetts General Hospital, so I did not make it :). It is pretty much your run of the mill particle accelerator that is about 30 meters in diameter.

[calvin950]

its gona end teh worldz as we knowz it!

jk, Happy New year!!!!

[akolozvary]

I wanted to see the camera get destroyed by the particles. Lets kick this baby into overdrive and do it again.

[lalalalarofl]

he sounds like kermit

[jcims]

Very cool! Does the camera lens attenuate the particle impacts at all?

[elakdawalla]

Awesome illustration of particle hits on camera detectors -- great for education about the kinds of artifacts you see on space cameras! Check out any image from the Cassini Saturn spacecraft taken through an ultraviolet filter and you'll see a lot of the same artifacts.

[DrNickAG]

Elakdawalla,

Thanks for the comments! Yes, many spacecraft show similar effects.

[sciencoking]

what the...??? omg this is radiation o_O

[bionerd23]

wow, that was awesome! 5 stars from me!

say, what would happen if you'd shoot neutrons (thermal N, fast N, etc.) at the camera? thanks a lot!

[DrNickAG]

Hi Bionerd!

Thanks for the comment. I haven't thought much about neutron beams but I think neutrons would have a similar effect. Any significant energy transfer would cause the camera to respond. The big difference would be the neutron cross section is so much lower that not as many particles would be registered for the same number of incoming particles.

[RoninX7]

Awesome!!!

[miasingers]

This is just way too cool!

[Comptonscattering]

Good Job Nick!