After quite a bit of effort, and nearly 50 sheets of film, I have finally managed to produce a negative from green sensitive xray which is comparable to regular panchromatic film.
My goal was to produce a negative for kallitypes, primarily studio portraits. I use Rodinal 1:100 in a flat bottomed tray with 1 liter of solution (convenient and cheap). My negatives swung between having compressed tonality--resulting in weird blotchy skin tones--or blown highlights. The key for me was using the ideas in D.F. Cardwell's article
"Shaping the tone curve of a Rodinal Negative" to compensate for the oddities of X-Ray film. I dropped my ASA from 100 to 64, which produced nice rich skin tones, and also significantly reduced by agitation, which tamed my highlights. I did not change my development time of 6 minutes nor my dilution of 1:100 which I had come to through a failed (and lame) attempt to apply BTZS ideas to xray film.
As (hopefully) you can see from the attached scan (an 8x10 crop of an 11x14 negative, with only very minor adjustments), my negatives are quite sharp, and most importantly, produce great kallitypes. Much of the sharpness I should attribute to using strobes (which I am a novice, so please forgive the double catch-lights and other flaws in the attached sample). This was of great help, since it reduced the number of variables I was working with. Anyhow, it is too dark and rainy to go out with an 11x14.
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