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The University of Texas cold-neutron prompt gamma-activation analysis (PGAA) facility is operational at the 1-MW UT TRIGA research reactor. The UT-PGAA facility utilizes a guided cold neutron beam produced by the Texas Cold Neutron Source. The cold neutrons are transported to the PGAA chamber via a 6-m long curved neutron guide followed by an 80-cm long converging neutron guide. A program of testing, optimizing, and calibrating the UT-PGAA facility is currently underway. Preliminary results for the sensitivities and detection limits of boron, hydrogen, and silicon in semiconductor materials are given.

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