I am using a Nikor/Honeywell 6x7 colour enlarger head as a light source for my camera scanning setup. The enlarger heads light is an MR16 Halogen bulb, it shines into a wedge-shaped box which is metal, painted white, and has what looks to be styrofoam lining the inside, it then shines down through some translucent white plastic material which further diffuses the light. So it does what your globe does.
My question is, how well then does the Halogen bulb work in terms of getting good colour information versus using either a setup like yours or a high CRI LED bulb? As far as I can tell from my research online Halogen bulbs have a CRI of 100% which should give very good colour accuracy and information. I am just curious to hear your opinion as an optical scientist on using a colour enlarger head as a light source.
Also, I haven’t gotten to experimenting with it yet, but since it is a colour enlarger it has built-in YMC filters which I believe could be used to control any colour casts and possibly the contrast of the scans. So far the enlarger head seems to work extremely well, and I have little to no colour issues in the final scan when converted with NLP, which was not the case when I attempted to use my iPad Pro 11" as a light source.