Preferably, {HEAD ~ the member} includes {TAIL ~ a restrictor} having the opening and in thermal contact with the electromagnetically reactive portion and the providing means includes means for producing electromagnetic radiation 
includes
Preferably , { HEAD ~ the member } includes { TAIL ~ a restrictor } having the opening and in thermal contact with the electromagnetically reactive portion and the providing means includes means for producing electromagnetic radiation
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH