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Forums
4hv.org :: Forums :: Electromagnetic Radiation
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Large radiographs to hang on wall - need ideas :D

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c4r0
Wed Aug 20 2008, 10:11AM Print
c4r0 Registered Member #151 Joined: Sun Feb 12 2006, 02:53PM
Location: Poland
Posts: 153
Hi!
I have some 30x40cm photo paper for radiographs. I made 6 already, 4 sheets left and I'm going to use it tonight.

Hand on PC keyboard - OK
1219226240 151 FT0 Dsci1571x


LEGO racing car - too short exposure and not center
1219226240 151 FT0 Dsci1572x


Shells - OK except the white corner. It looks realy cool so i'm going to x-ray it again just for a copy smile
1219226240 151 FT0 Dsci1574z


Motherboard - too low energy/too short exposure and white corner
1219226240 151 FT0 Dsci1578x


Motherboard again - good energy and exposure time, but i placed it in wrong corner of the x-ray cassette angry
1219226240 151 FT0 Dsci1575x


headphones with mp3 player - a bit too short exposure time
1219226240 151 FT0 Dsci1579x



So i'm going to x-ray LEGO car and shells again, maybe motherboard too. Two sheets of photo paper left and no ideas, please help me smile I't should be something suitable to put the radiograph in frame and hang on wall wink

And by the way. I tried also to exposure x-ray film without cassette to get sharp image, but it needs REALY long exposure. I placed the film 10cm under x-ray tube for about one minute and after developing i was hardly able to notice that it was exposured at all! B/w photo paper in blue cassette needs only 5s in 50cm distance from the tube to get completely black.
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GluD
Wed Aug 20 2008, 10:47AM
GluD Registered Member #1221 Joined: Wed Jan 09 2008, 06:17PM
Location: Odense, Denmark
Posts: 196
A sniper scope could be kinda cool i guess, but i dont supose its alot of people who just randomly happen to own one.. Nice pictures btw. I like the hand wink
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Mates
Wed Aug 20 2008, 11:17AM
Mates Registered Member #1025 Joined: Sun Sept 23 2007, 07:53PM
Location: Czech Rep.
Posts: 566
I hope you know what you are doing to your body by exposing it to the ionising radiation... Maybe you should read this Link2

Cheers Mates

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c4r0
Wed Aug 20 2008, 11:27AM
c4r0 Registered Member #151 Joined: Sun Feb 12 2006, 02:53PM
Location: Poland
Posts: 153
Glood wrote ...
A sniper scope could be kinda cool i guess, but i dont supose its alot of people who just randomly happen to own one..
Well, this is a good idea but your supposition is right smile

Glood wrote ...

Nice pictures btw. I like the hand wink
Thanks cheesey


Mates wrote ...
I hope you know what you are doing to your body by exposing it to the ionising radiation... Maybe you should read this Link2
I know a lot about it. I'm aware of potential risk, i'm wearing a lead apron and i have a few different dosimeters wink But thanks for warning.
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Mads Barnkob
Wed Aug 20 2008, 04:01PM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
I have tried for years to get the full cranial xray there exists of my head, from years back at the dentist when i were a kid and should wear braces :)

but for some reason they wont give it to me :/
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borri317
Fri Sept 12 2008, 11:26AM
borri317 Registered Member #664 Joined: Sun Apr 22 2007, 10:31PM
Location:
Posts: 13
I have some telescopic sights.
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plazmatron
Fri Oct 03 2008, 11:47PM
plazmatron Registered Member #1134 Joined: Tue Nov 20 2007, 04:39PM
Location: Bonnie Scotland
Posts: 351
Those are really niceI like the keyboard one! I`m going to have to do one of those myself to match the mouse x-ray!




New



I tried taking radiographs with raw paper too, but the exposure times are horrendous, and its hard on the tubes.
Heres a good one for you though, get hold of one of those instant polaroid cameras, and cover the lens with black tape.
Pick an object roughly the size of the polaroid film (4x4 inches).

Set up your x-ray machine ready to take an x-ray. Now very quickly, depress the shutter on the camera, and the instant the unexposed film emerges, get it under the x-ray tube, with the object on top, as quickly as possible, and switch on the x-ray tube.


1223077468 1134 FT52552 Shell1polaroid


The film is still sensitive to x-rays, WHILE it is still developing. Reciprocity failure of the film produces a wonderful variation in colour of the developed image. I have had them turn out yellow, sepia, pink, and blue, depending on the exposure time.

Leslie
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Proud Mary
Sat Oct 04 2008, 12:06AM
Proud Mary Registered Member #543 Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Splendid stuff, Leslie!
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Fabio
Mon Oct 06 2008, 08:20AM
Fabio Registered Member #122 Joined: Fri Feb 10 2006, 12:55PM
Location: Milano Italy
Posts: 148
Huge tubes usually become a real artwork!

Th


But sometimes Kirlian photos or Lichtenberg figures can be better, i have this photo in a frame on the wall

Th


Ciao!
Fabio.


********************* EDIT *********************

Both images was taken on lithographic film, developed and copied on paper, for the coin the enlarger was used, for the valves no enlarger is necessary, just a glass sheet and a lamp

I use "MACO Genius film" as litho film because it have a really fine grain, is easily obtainable and isn't so expensive (about 15€ for five 24x30cm sheets)
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plazmatron
Mon Oct 06 2008, 07:15PM
plazmatron Registered Member #1134 Joined: Tue Nov 20 2007, 04:39PM
Location: Bonnie Scotland
Posts: 351
Those are really nice! I have seen that picture of the tubes before, old.hv.org perhaps?

I have some of tubes myself somewhere, contact printed, and toned sepia, nice!

I have never had a crack at kirlian photography, odd really since I have all the necessary stuff!

Great work Fabio!

Did you have a crack at blowing a flash x-ray tube yet?

Leslie
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