Thus, it was decided that the computation of the TRC values for all the detectors
to be conducted with n=0.5. Once n=0.5 was chosen for all the detector samples,
Eq. (4) could be further simplified by assuming that C0ðT; nÞ ¼ 1:0 . Then TRC
values are the same as RTI values. Thus, the term RTI was used hereafter as a
thermal sensitivity index of heat detectors.