Measurement and calculation of secondary gamma rays resulting from exposure of Fe, Pb, and H/sub 2/O to the ARERR-1 spectrum

Study of the Reflected (Albedo) Secondary Gamma Radiation from Different Materials

“…7 shows that the reflected secondary gamma rays increase with the increase of the sample thickness then becomes constant. On the other hand tho transmitted secondary gamma rays (where the detector was placed on tho opposito sido of tho sample) increaso with the increaso of the sample thickness then it decrease [12,13]. As tho reflected secondary gamma rays is the result of tho interaction of the incident neutrons with tho first layers of tho sample (the source and tho detector wero in the samo sido of the sample in this caso).…”