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Game: Guess the mystery object !

piferal

piferal

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For medical use (and maybe others possible areas also), well, more or less, I think what it can be, medical, is one area I know a little bit :D

This device uses a piezoelectric material, right? The piece you see in the center, on top.
 





piferal

piferal

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Then, I think is a kind of portable X-ray source based in to piezoelectricity to generate the radiation.
 
ped

ped

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piferal said:
Then, I think is a kind of portable X-ray source based in to piezoelectricity to generate the radiation.
Click to expand...


I have to give it to you.

X-Ray Scanner Is the Size of a Stick of Gum : Discovery News

k-bigpic.jpg
 
Sigurthr

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Fascinating, but there is something missing in the equation there. A 100kV source does not inherently produce X-rays. Simply put x-ray sources are just fancy bremsstrahlung radiation generators that work by *abruptly* slowing or stopping accelerated electrons. Without a metal strike plate (anode) for the electrons to be abruptly stopped/slowed by there is no bremsstrahlung radiation. Likewise if there is gas between the cathode (electron source) and the anode there will be ion production and no electrons will reach the anode. Again, no x-ray production.

This is why Tesla Coils do not produce x-rays (unless cavitation of the air occurs right at a metal surface).

If they enclosed this piezoelectric HV source in a vacuum chamber and added an anode it would indeed be an x-ray source. But as it stands in the photo it is just a simple HV source, nothing more.
 
piferal

piferal

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Sigurthr said:
Fascinating, but there is something missing in the equation there. A 100kV source does not inherently produce X-rays. Simply put x-ray sources are just fancy bremsstrahlung radiation generators that work by *abruptly* slowing or stopping accelerated electrons. Without a metal strike plate (anode) for the electrons to be abruptly stopped/slowed by there is no bremsstrahlung radiation. Likewise if there is gas between the cathode (electron source) and the anode there will be ion production and no electrons will reach the anode. Again, no x-ray production.

This is why Tesla Coils do not produce x-rays (unless cavitation of the air occurs right at a metal surface).

If they enclosed this piezoelectric HV source in a vacuum chamber and added an anode it would indeed be an x-ray source. But as it stands in the photo it is just a simple HV source, nothing more.
Click to expand...

Yes, you're right, if we look only at the image that appears in the article posted by ped, because it is only part of the system.

You have to remember that so far is only prototype stage.

That is an image of the device outside the vacuum facility.

The work is performed for the moment in a stainless steel spherical vacuum chamber.

As development progresses, it will moved to a vacuum tube configuration ;)
 
BShanahan14rulz

BShanahan14rulz

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I believe it's piferal's turn, but this is somewhat related. I just found this yesterday, and cyparagon and bluefusion told me what it was. It would fit perfectly in this thread! Not gonna make this one too hard:
IMG_01161_zps835f1a55.jpg

IMG_01151_zps523f3afe.jpg
 
Sigurthr

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That's an acoustic time delay assembly. It is used to produce precision time delay in a circuit. There is a transducer on each side and the electrical signal is converted to audio and then routed in a special path through edge reflections back to the receiver transducer. Since audio travels slower than electrical signals it produces a delay. They were used in camcorders years ago.
 
ped

ped

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piferal always comes out the woodwork when this thread gets resurrected :crackup:

Also, I hope you didn't google that delay line :shhh:

Yup, Iv'e smashed many of them a lot of years ago, as Sig said, used in camcorders & VCR's .
 
piferal

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ped said:
piferal always comes out the woodwork when this thread gets resurrected :crackup:

Also, I hope you didn't google that delay line :shhh:

Yup, Iv'e smashed many of them a lot of years ago, as Sig said, used in camcorders & VCR's .
Click to expand...

Haha, yes, The gadgets and other attracted me to this page :p

come on Peter, you don't need search for anything when you know the answers, please.

To say that they were also used in Pal televisions (system used in many places in Europe) to delay the chrominance signal in 64 microseconds.
 
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ped

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Well why don't you dig one up to keep us all guessing then? :D
 
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