{HEAD ~ The emitted radiation} preferably has a spectral radiant power distribution, for which the maximum is at a wavelength in {TAIL ~ the infrared range} 
{ HEAD ~ The emitted radiation } preferably has a spectral radiant power distribution , for which the maximum is at a wavelength in { TAIL ~ the infrared range }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL