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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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NC State celebrates 70 years of nuclear engineering education
An early picture of the research reactor building on the North Carolina State University campus. The Department of Nuclear Engineering is celebrating the 70th anniversary of its nuclear engineering curriculum in 2020–2021. Photo: North Carolina State University
The Department of Nuclear Engineering at North Carolina State University has spent the 2020–2021 academic year celebrating the 70th anniversary of its becoming the first U.S. university to establish a nuclear engineering curriculum. It started in 1950, when Clifford Beck, then of Oak Ridge, Tenn., obtained support from NC State’s dean of engineering, Harold Lampe, to build the nation’s first university nuclear reactor and, in conjunction, establish an educational curriculum dedicated to nuclear engineering.
The department, host to the 2021 ANS Virtual Student Conference, scheduled for April 8–10, now features 23 tenure/tenure-track faculty and three research faculty members. “What a journey for the first nuclear engineering curriculum in the nation,” said Kostadin Ivanov, professor and department head.
Xianggao Wang, Kejun Dong, Ming He, Shaoyong Wu, Shan Jiang
Nuclear Technology | Volume 182 | Number 2 | May 2013 | Pages 235-241
Regular Technical Paper | Special Issue on the Symposium on Radiation Effects in Ceramic Oxide and Novel LWR Fuels / Reprocessing | dx.doi.org/10.13182/NT13-A16433
Articles are hosted by Taylor and Francis Online.
This study extracts UF-2 ions from UF4 sample material for the first time so as to improve the measurement accuracy and sensitivity for accelerator mass spectrometry (AMS) measurement of 236U. Compared to the commonly used UO-/UO2 (or U3O8) combination, the UF-2/UF4 approach brings a higher beam current of extracted U-containing ions and lower interference from U isotopes (235U in particular). The UF4 prepared with the procedures developed in this work can provide a higher ratio of F- /O- and therefore lower interference from O-containing 235U and 238U molecular ions, compared with that from the UF4 made by conventional liquid-phase reaction. The AMS experiment was carried out on the AMS system at China Institute of Atomic Energy (CIAE), where only a simple surface barrier detector was used to record ions and a reference 236U sample with a 236U/238U ratio of 10-10 was analyzed. The result shows that the measurement sensitivity of the UF-2/UF4 approach is lower than 10-10 and that the reference 236U sample result is in agreement with the reference value within the uncertainty limits, with the relative uncertainty only 4%. In comparison, the measurement sensitivity of the UO- /U3O8 combination approach is 10-9 , and it cannot give a concrete value for the same reference sample using the same AMS system. If the sophisticated 500-ps-resolution time-of-flight detection system is used in combination with the UF-2/UF4 approach, a sensitivity of 10-13 (or lower) is expected.
