Dear IFuller;
In the following papers atomic Hydrogen plays a very important rule, but I have no access to this literature yet:
Hot-Filament-Method:
Diamond growth by hot-filament CVD: State of the art
R.Haubner, B.Lux: Diamond and Related Materials 2 (1993) 1277-1294
Microwave-Method:
Effects of microwave plasma deposition parameters on diamond coating formation on SiAlON substrates
A.Lindlbauer, R.Haubner: B.Lux, Refractory Metals & Hard Materials 11 (1992) 247-258
DC-Glow-Discharge-Method:
Characteristics of a Pulsed DC-Glow Discharge CVD Reactor for Deposition of Thick Diamond Films
P.Hartmann, R.Haubner, B.Lux: Refractory Metals & Hard Materials 16 (1998) 207-216
So it maybe possible that they discuss it more detailed, or give better references.
Good Luck!
ARGOS++