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Join Date: Feb 2009
Location: Malaysia
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High Voltage X-Ray Generator

02/20/2009 11:49 AM

can anyone tell me what is the different between x-ray produced by high voltage generator and low voltage generator?

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Anonymous Poster
#1

Re: high voltage x-ray generator

02/20/2009 1:47 PM

no difference, the x-ray energy is characteristic of the target material

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Guru
Spain - Member - New Member Engineering Fields - Nuclear Engineering - New Member

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#6
In reply to #1

Re: high voltage x-ray generator

02/22/2009 1:03 PM

Wrong.

The radiation spectrum from any X ray device has a "peak" specific of the target material, but a specific energy (frequency... You know... E = h.f) doesn't define a complete spectrum.

Try this thread to have a more complete answer:

X-Ray Wavelength and Frequency

Kind regards

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Guru
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#2

Re: High Voltage X-Ray Generator

02/20/2009 8:33 PM

The higher voltage the more intensive the x-ray generate( the shorter wave lengh). we use to call teh x-ray under 60-70kv as soft ray, and higher 120kv-1000kv as hard ray. the front is usually use for medical and laguge inspection, the lst use for industry inspection, such as film thick steel plate etc. in manufacture or ship factory etc.

they have different radiation eig spectrum lines, for expm, from k, m, l etc.(from different electron orbits) but they all belong to photon flux.

you can refer to atomic physics books for details.

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Guru

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#4
In reply to #2

Re: High Voltage X-Ray Generator

02/21/2009 2:47 PM

Regards.

1 GA for your prompt & correct reply.

Hard X-rays pass through the human-body & make clear image in shortest time say in mSecs & absorbed minimum in body; min harm to body-chemistry.

X-rays @ more than 150KV is used to image flaws in Metal-castings etc.

While the Soft-X-rays are less pentrating & most of energy is absorbed by body.

In early days of X-Rays use a lot of Technicians & Radio-graphers died of Lekumia

[Spells ??].

It was the time of slow Films & Soft-X-ray Machines [35/50KV] & exposers were taken in Seconds.

As the Rapid Films & Higher X-Ray Generators came-up & danger of Exposer was looked in the things improved.

Some 20 years back I had been working on Angio & Cardio Units using as fast as 6 Cut-Films/Sec changers; 6 Exposers /Sec. Now may be faster & Higher KV units for diagnostics.

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Power-User

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#3

Re: High Voltage X-Ray Generator

02/20/2009 9:38 PM

The higher the voltage, the more the penetration. If you're talking about medical, you pick the voltage according to the density differences you're trying to display. Bones would use higher voltage than mammograms would, as an example.

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Anonymous Poster
#5

Re: High Voltage X-Ray Generator

02/22/2009 8:47 AM

Looking for a cheap X Ray emitter? Look no further then the roll of scotch tape in your desk drawer. It has been recently discovered that scotch tape emits X Rays capable of penetrating flesh when it is peeled off of the roll. A demonstration was given using a dental X Ray film and a subject's finger. Scientists don't fully understand how it works yet,but it does.They are working on a low cost X Ray machine for under developed countries that is hand cranked. Amazing,no? Google X Ray and Scotch Tape for more info.... ShoeShineBoy

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Guru
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#7
In reply to #5

Re: High Voltage X-Ray Generator

02/23/2009 10:38 AM

I thought it was a joke but then I saw the video!

favourite new words.. tribology, triboluminescence. whoda thunkt. thanks.

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