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University of Michigan displays nuclear artifacts donated by ANS member
Mobley
American Nuclear Society member John Mobley IV recently donated some historical nuclear artifacts and memorabilia to the Department of Nuclear Engineering and Radiological Sciences (NERS) at the University of Michigan.
Mobley is a nuclear engineering education researcher at the University of Michigan. Among his roles at ANS, he is currently the secretary of Young Members Group; the vice chair of the Education, Training and Workforce Development Division; and the vice chair of Student Sections Committee.
He said he chose to donate part of his collection to NERS because the University of Michigan is broadly committed to nuclear outreach at the local, state, and federal levels. The university is home of the first ANS Student Section, which turned 70 this year.
Tatsuhiko Uda, Masahiro Tanaka, Toshiya Tamari, Hideki Kakiuchi, Noriyuki Momoshima
Fusion Science and Technology | Volume 60 | Number 4 | November 2011 | Pages 1244-1247
Environmental and Organically Bound Tritium | Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) | doi.org/10.13182/FST11-A12655
Articles are hosted by Taylor and Francis Online.
Atmospheric tritium concentrations and organically bonding tritium OBT of pine needles at NIFS Toki site had been measured considering environmental safety of future deuterium plasma experiment by large helical device (LHD). Atmospheric tritium concentrations of three chemical forms such as water HTO, hydrogen HT and methane CH3T had been measured since 2004. Tritium concentrations of HTO, HT and CH3T were distributed around 2-23 mBq/m3, 6-11 mBq/m3 and 0.5-3 mBq/m3 respectively. The HTO concentration principally depends on humidity in air. Recent decreasing rate of HT concentration to half was estimated 19.4 years. The OBT concentration tends to decrease and the rate to half was almost 9.4 years. Also the OBT measurements were cross checked with burning and liquid scintillation counting method and 3He mass spectrometric method. Both analyzed results showed good agreement. Long term monitoring of environmental tritium would be necessary from view point of safety on future nuclear fusion development.
