Determination of gamma camera calibration factors for quantitation of therapeutic radioisotopes

EJNMMI Physics

Table 3 Energy window settings for ¹³¹I [37], ¹⁷⁷Lu [38], and ¹⁸⁸Re [39] used in the experimental acquisitions and in the simulations

Isotope	Photopeak window (PW) [keV]		Lower scatter window (LSW) [keV]		Upper scatter window (USW) [keV]
Isotope	Center	Range	Center	Range	Center	Range
¹³¹I	364	328–400	317	306–328	411	400–422
¹⁷⁷Lu^a	208	187–229	167	146–187	249	229–270
¹⁸⁸Re	155	140–171	136	132–140	175	171–178

^aFor experiments acquired at Quebec (experiment D), the range of LSW and USW were 166–187 and 229–250, respectively