Aviphot vs. "Svema" vs. green x-ray vs. mammography ?

[popdoc]

For my two big Normas, I'm using 500 sheets of 8x10 Fuji HRU. And I have 500 sheets of the French 18x24cm Kodak Mammography films, and a roll of the 24cm Agfa Aviphot 200 as well. For Panchro 8x10 I have some olde HP5+, Shanghai 100, Ilford Commercial 8x10. Recently I added 50 sheets of 8x10 FOMA 200 which I intend to push process for highest speed. Right now I am using D23 at 1:1 and also Replenished Straight.

I like using all of these films.

As to pushing the Foma 200, personally have had poor to dismal results in that regard. YRMV… Best of luck!


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[Tin Can]

All Lf size Medical USA XRay is called Green or Blue

However actually both are Blue tint

Only to reduce glare and eye strain for Dr and Technician

I buy whatever is cheaper

[XrayShooter]

For their double sided films Carestream indicates orientation. The two sides are colored differently. One has to be oriented to the "lens". The emulsions are of different sensitivity and grain.
So which to remove?

I use 3 different speeds of Carestream Industrex for Industrial Radiography. Both sides are the same emulsion. Both sides are the same color. Both sides are glossy. The emulsion can change color if the angle of light changes. The film is usually placed between two equal intensifying screens so both sides are exposed "equally". However, the screens can be a different thickness Front /Back and that is the critical orientation for us.

The notches on the film are for film type identification in the darkroom and post processing. By code we are only permitted to use specific film types. The MX125 film has no notches at all. Each type does have a different color emulsion though. MX is bluelish. T is a greenish beige. AA is a greyish beige.

In radiography we refer to the exposure side of the film as the "front, or source side" (toward the source of the xray), and the other side is the "back side".

[Eugen Mezei]

I use 3 different speeds of Carestream Industrex for Industrial Radiography. Both sides are the same emulsion. Both sides are the same color. Both sides are glossy. The emulsion can change color if the angle of light changes. The film is usually placed between two equal intensifying screens so both sides are exposed "equally". However, the screens can be a different thickness Front /Back and that is the critical orientation for us.

The notches on the film are for film type identification in the darkroom and post processing. By code we are only permitted to use specific film types. The MX125 film has no notches at all. Each type does have a different color emulsion though. MX is bluelish. T is a greenish beige. AA is a greyish beige.

In radiography we refer to the exposure side of the film as the "front, or source side" (toward the source of the xray), and the other side is the "back side".

I did not know Carestream produces X-ray for industrial/metallurgical application. Thought they bought only the medical part of Kodak.
I was referring to the double sided medical films. Some time ago I published a link to some brochures of Carestream medical film (single and double sided X-ray), it is here somewhere in the thread. Therein Carestream proudly mentions how the two sides are coated at different sensitivity and grain and which side you should orient to the source. To differentiate the two sides, they are colored differently (one purple, the other green).

Seeing the Fuji industrials are packaged with a sheet of Pb I hoped, they would be single side coated. (As why would one coat the side covered by the lead sheet?)

Are X-ray films for industrial nondestructive tests at least coated on a colorless base or also on the bluish one "to not tire the eyes"?

[XrayShooter]

I did not know Carestream produces X-ray for industrial/metallurgical application. Thought they bought only the medical part of Kodak.
I was referring to the double sided medical films. Some time ago I published a link to some brochures of Carestream medical film (single and double sided X-ray), it is here somewhere in the thread. Therein Carestream proudly mentions how the two sides are coated at different sensitivity and grain and which side you should orient to the source. To differentiate the two sides, they are colored differently (one purple, the other green).

Seeing the Fuji industrials are packaged with a sheet of Pb I hoped, they would be single side coated. (As why would one coat the side covered by the lead sheet?)

Are X-ray films for industrial nondestructive tests at least coated on a colorless base or also on the bluish one "to not tire the eyes"?

Interesting, I never looked at their medical films.

The lead wrappers in the contact packs are actually intensifying screens so that it is ready to shoot. No need for any cassettes.

Industrial xray film is double sided to reduce exposure times. You have emulsion in direct contact with the intensifying screens and improved density (with the sum of the two densities).

You can get industrial film without any additional packaging (no envelopes, lead, or other wrappers) too.

The film base is blue and I thought it was to improve the image tone of the radiographs. Old xrays had this yellow-brown tone. It can still get tiring on the eyes looking at a lot of film in one sitting.

[Eugen Mezei]

The lead wrappers in the contact packs are actually intensifying screens so that it is ready to shoot. No need for any cassettes.

The remains of the veterinary lab I bought the X-ray gear also contained casettes. I told the seller I dont want those (I was only interested in the hangers for dip and dunk) and later she told me, he sold those to somebody interested in the lead in them. I was a bit suprised, as the only casette I have, for panoramic dental x-ray 10x15 cm, does not seem to have lead in it.

You can get industrial film without any additional packaging (no envelopes, lead, or other wrappers) too.

In the link I posted for Fuji industrial xray in the big xray thread (I think it was this: https://www.mpmproducts.com/fujifilm---film.html) they have rolls of different wide (70 mm, 100 mm, but I read in some other thread they produced 90 mm in rolls of 600 m) with or without lead backing and with or without paper wrap. This could be interesting.

Btw, also interesting: https://www.fujifilm.com/de/en/busin...gital/xrayfilm A list of all their industrial xray and formats but also the second tab with the brochures to every film and to general information about industrial xray is very informative.
And here subdivided into specialised fproducts for the oil and gas, aerospatial industry: https://www.fujifilm.com/us/en/busin...uctive-testing

The film base is blue and I thought it was to improve the image tone of the radiographs. Old xrays had this yellow-brown tone. It can still get tiring on the eyes looking at a lot of film in one sitting.

I wonder if we could convince one of the producers to run a batch coated on transparent support. Should not be a technicall challenge but a quantity one.

[Tin Can]

ZZ Medical is a major seller

I buy only from them in bulk, meaning cases of 500 sheets

https://www.zzmedical.com/11x14-in-f...saAtZ1EALw_wcB

My first big buy was 10 years ago

Bought a case of 14X17" single side now out of production

I have 1/2 left

The biggest problem with x-ray is obfuscation by reinventing the wheel

[landstrykere]

rolls of different wide (70 mm, 100 mm, but I read in some other thread they produced 90 mm in rolls of 600 m) with or without lead backing and with or without paper wrap. This could be interesting.

Lomig Perrotin ie. "Film Washi" sells industrial x-ray roll he cuts in 120 medium format rolls. The "I" film rated iso 80 but he doesn't tell what brand/model he buys:
https://filmwashi.com/en/products/specialty_films/
https://filmwashi.com/datasheet/I_en.pdf
that's the possibility to test instead of buying big without knowing. There are few samples here and there and for instance:
http://www.alexluyckx.com/blog/2022/...-washi-type-i/
but by now Perrotin is out of stock, also all resellers I could find excepted one in Switzerland, but at 50 fr postal fee I don't buy.

https://www.fujifilm.com/de/en/busin...gital/xrayfilm A list of all their industrial xray and formats but also the second tab with the brochures to every film and to general information about industrial xray is very informative.

all manufacturers have online docs about the general physics-chemistry and their own products, but not easy to have exhaustive comparisons of different manufacturers/brands.
A relative old paper (2006) offers a small useful overview:
https://www.ndt.net/article/ecndt2006/doc/P131.pdf

[Tin Can]

There is a very active member who made a film sliter

Maybe he will speak up

[Eugen Mezei]

There is a very active member who made a film sliter

Maybe he will speak up

The idea behind using X-ray film is to replace large format film, as that is what is expensive. (The bigger the more expensive per shot.) Slitting it up contradicts this.
Now everyone can do as he wishes, but x-ray film drying up I consider it a pity to cut it up when you can buy roll formats pretty easily and relatively cheap without being necessary to make compromises.