The mixture comprises a precursor of a desired material within a supercritical fluid, and is initially provided in the chamber under {TAIL ~ first conditions} at which {HEAD ~ the precursor} is stable 
The mixture comprises a precursor of a desired material within a supercritical fluid , and is initially provided in the chamber under { TAIL ~ first conditions } at which { HEAD ~ the precursor } is stable
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL REL OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL