Abstract
The TRIGA research reactor operated by the Nuclear Science Center (NSCR) for Texas A&M University has the capability of producing fast transient power pulses by pneumatic ejection of the transient control rod upward out of the core to a preset distance corresponding to the desired input reactivity. The NSCR has been recently relicensed to operate in this mode. An evaluation of linearity of radioactivation to reactivity insertion and integrated pulse energy is presented. Pulse/irradiation timing considerations have proven to be of paramount importance. Pulse shape variations have been shown to significantly effect specific activation, especially at low reactivity insertions. The design and construction of a rapid transfer system for pulsed irradiation activation analysis is discussed.
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