Dual energy ?-ray transm~ssmn techmques have
considerable potenual for on-hne analysts m the
mineral and coal industries. Calculations have shown
the benefit of careful chotce of the two 7-ray energies
m relatton to the specafic apphcat~on Promising
apphcauons include determination of lead m ores and
ore products, iron m high grade iron ore, uramum m
solutions and ash m coal The possibdlty of deterruination of sulphur content of coal mdtrectly vm iron
from combination of dual energy "/-ray transm~sslon
and pa~r production techmques has been d~scussed
Far more experimental work must be undertaken to
evaluate thts posslbdlty