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Interaction of Tritium with Polyethylene

Kimiko Ema, Yoshinobu Izumi

Fusion Science and Technology / Volume 41 / Number 3P2 / May 2002 / Pages 378-381

Properties and Reaction / Proceedings of the Sixth International Conference on Tritium Science and Technology Tsukuba, Japan November 12-16, 2001

Polyethylene (PE) was exposed to tritium gas at about 1 atm pressure. Low density polyethylene (LDPE) was more labeled than high density polyethylene (HDPE) was. Tritium labeling was enhanced at higher temperature. The rate of specific activity of HDPE was 2.5×108 Bq/g atm hr. n-Eicosane was molded to a small spherical shape, and the activity depended on the surface area and the averaged specific activity was 7×107 Bq/g atm hr.

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