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Nuclear Science User Facilities 76 presence of high levels of radiation and high temperatures that would destroy typical commercial ultrasonic transducers. Future Activities During the second year of the experi- ment PSU personnel shipped signal- processing equipment to MITR and then travelled to MITR to assist with the insertion and setup of the signal- processing equipment.The irradiation started in February 2014. PSU is moni- toring and interpreting the data from the irradiation including supporting laboratory evaluations. Figure 8. Pulse-echo amplitude measured for the BiT transducer during the first power cycle. The projects third year will witness the completion of 18 months of irradiation. PSU and INL researchers will travel to MITR to assist with removal of samples from the reactor final measurements and post-irradiation examination PIE during which the effects of irradiation on the piezoelectric candidate materials will be quantified. System components will be examined at the MIT Hot Box and specific parameters including ultrasonic velocity and attenuation transduction efficiency of piezoelectric electrical resistivity color crystallinity and physical and electrical robustness will be evaluated. The scope of the PIE will be based on the activation level of the transducers. It is likely that the coaxial cables can be left intact as the experiment is moved to the MIT Hot Box. If this is the case it will be possible to reconnect these cables to non-irradiated cables and interrogate the transducers after they have been placed in the Hot Box. Detailed analysis of the magnetostrictive transducer material will probably not be possible due to the cobalt-bearing materials with which they are made. At the conclusion of the PIE activi- ties PSU scientists will prepare a final report summarizing the results of this project and MIT will dispose of the irradiated materials. Publications and Presentations 1. J. Daw J. Palmer P. Ramuhalli P. Keller R. Montgomery H-T. Chien B.Tittmann B. Reinhardt G. Kohse J. Rempe 2015 UltrasonicTrans- ducer IrradiationTest Results. NPIC HMIT at CharlotteNCFebruary 23262015. 2. B. Reinhardt B.Tittmann J. Rempe J. Daw G. Kohse D. Carpenter M. AmesY. Ostrovsky P. Ramuhalli R. Montgomery H.T. Chien and B.Wernsman 2014Progress to- wards developing neutron tolerant magnetostrictive and piezoelectric transducers 41st Annual Review of Prog- ress in Quantitative Nondestructive Evaluation ConferenceBoiseIDJuly 20252014. 3. D.A. Parks and B.R.Tittmann 2014 Radiation tolerance of piezolec- tric bulk single crystal aluminum nitride IEEETransactions on Ultrasonics Ferroelectrics and Frequency ControlVol. 61 No 7 pp. 12161222. See additional publications from other years in the Media Library on the NSUF website.