Johnson Lab

The Johnson lab is focused on radiation in the environment and radiation dosimetry. The lab has strong collaborations with Fukushima University, University of Tokyo, and Tsukuba University to monitor radiation surrounding the Fukushima reactor accident. Additional collaborations include monitoring of abandoned uranium mines on the Navajo Nation (with Dr. Gilbert John, Dr. B. Weir, and Dr. Phillida Charley), other radiation monitoring, and rhinoceros horn poaching mitigation using radioisotopes with the University of the Witwatersrand, Johannesburg.

Health physics, radiochemistry, and radioecology students all get the opportunity to go on the Los Alamos and Idaho National Lab practicums. Typically, the lab also tours a uranium mine and visits Fukushima.

research project

Monitoring of radiation in the environment surrounding Fukushima Daiichi

Publications

Late phase radiocesium dynamics in Fukushima forests post deposition

Yoschenko V, Nanba K, Wada T, Johnson TE, Zhang J, Workman D, Nagata H. Late phase radiocesium dynamics in Fukushima forests post deposition. J Environ Radioact. 2022 Jun 19;251-252:106947. doi: 10.1016/j.jenvrad.2022.106947. Epub ahead of print. PMID: 35732077.

Proteomic Biomarker Analysis of Serum from Japanese Field Mice (Apodemus Speciosus) Collected within the Fukushima Difficult-to-return Zone

Yoschenko V, Nanba K, Wada T, Johnson TE, Zhang J, Workman D, Nagata H. Late phase radiocesium dynamics in Fukushima forests post deposition. J Environ Radioact. 2022 Jun 19;251-252:106947. doi: 10.1016/j.jenvrad.2022.106947. Epub ahead of print. PMID: 35732077.

Landside tritium leakage over through years from Fukushima Dai-ichi nuclear plant and relationship between countermeasures and contaminated water

Shozugawa K, Hori M, Johnson TE, Takahata N, Sano Y, Kavasi N, Sahoo SK, Matsuo M. Landside tritium leakage over through years from Fukushima Dai-ichi nuclear plant and relationship between countermeasures and contaminated water. Sci Rep. 2020 Nov 16;10(1):19925. doi: 10.1038/s41598-020-76964-9. PMID: 33199807; PMCID: PMC7669847.

Effective Half-life of 134Cs and 137Cs in Fukushima Prefecture When Compared to Theoretical Decay Models

Hayes JM, Johnson TE, Anderson D, Nanba K. Effective Half-life of 134Cs and 137Cs in Fukushima Prefecture When Compared to Theoretical Decay Models. Health Phys. 2020 Jan;118(1):60-64. doi: 10.1097/HP.0000000000001129. PMID: 31703017.

Effects of chronic low-dose radiation on cataract prevalence and characterization in wild boar (Sus scrofa) from Fukushima, Japan

Pederson SL, Li Puma MC, Hayes JM, Okuda K, Reilly CM, Beasley JC, Li Puma LC, Hinton TG, Johnson TE, Freeman KS. Effects of chronic low-dose radiation on cataract prevalence and characterization in wild boar (Sus scrofa) from Fukushima, Japan. Sci Rep. 2020 Mar 4;10(1):4055. doi: 10.1038/s41598-020-59734-5. PMID: 32132563; PMCID: PMC7055243.

more publications

Student activities include multiple visits to various sites including Idaho National Lab, Los Alamos National Lab, uranium mines, and additional locations.

Student activities include multiple visits to various sites including Idaho National Lab, Los Alamos National Lab, uranium mines, and additional locations.

Student activities include multiple visits to various sites including Idaho National Lab, Los Alamos National Lab, uranium mines, and additional locations.

Student activities include multiple visits to various sites including Idaho National Lab, Los Alamos National Lab, uranium mines, and additional locations.