筑波大学 放射線・アイソトープ地球システム研究センター

筑波大学 放射線・アイソトープ地球システム研究センター A team of experts from University of Tsukuba, working on issues related to radioactive materials.

🌊 Study shows Fukushima radiocesium Kd is declining due to slow CsMP decomposition leaching ¹³⁷Cs. A new model tracks th...
01/06/2026

🌊 Study shows Fukushima radiocesium Kd is declining due to slow CsMP decomposition leaching ¹³⁷Cs. A new model tracks this, estimating leaching rates at 0.02–0.03 yr⁻¹.
🔗 doi.org/10.1134/S1066362226020098

🧪 Solvent‑free liposome extraction enables selective recovery of lanthanides from radioactive waste using DGAA ligands; ...
07/05/2026

🧪 Solvent‑free liposome extraction enables selective recovery of lanthanides from radioactive waste using DGAA ligands; insights into Eu³⁺ adsorption and ligand stability for separation technologies.
🔗 doi.org/10.1007/s44211-026-00889-y

🕰️ Study reports a 0.46(8) s half-life for singly charged ²²⁹ᵐTh⁺ in an ion trap, supporting electronic bridge decay and...
15/04/2026

🕰️ Study reports a 0.46(8) s half-life for singly charged ²²⁹ᵐTh⁺ in an ion trap, supporting electronic bridge decay and advancing nuclear–electron interaction studies for thorium clock.
🔗doi.org/10.1038/s41567-026-03251-1


—
Image credit: RIKEN
Conceptual diagram of electronic bridge decay (Press release, April 14, 2026)

⚛️First detection of ²³⁶ᵐNp via ²³²Th + ⁷Li toward ²³⁶ᵍNp as a spike for ²³⁷Np MS. Ultra-trace separation enabled Np ana...
20/02/2026

⚛️First detection of ²³⁶ᵐNp via ²³²Th + ⁷Li toward ²³⁶ᵍNp as a spike for ²³⁷Np MS. Ultra-trace separation enabled Np analysis; cross sections at 29–42 MeV were 0.12–0.39 mb, confirming ²³⁶Np production.
🔗doi.org/10.1016/j.apradiso.2025.112397

☢️ North Kazakhstan study: 95.3% of atmospheric ²¹⁰Pb is in fine aerosols (
20/02/2026

☢️ North Kazakhstan study: 95.3% of atmospheric ²¹⁰Pb is in fine aerosols (

🧪 Raman study shows swift‑ion irradiation drives silica glass toward smaller rings, with a 940 cm⁻¹ 2MR peak. Etched‑tra...
20/02/2026

🧪 Raman study shows swift‑ion irradiation drives silica glass toward smaller rings, with a 940 cm⁻¹ 2MR peak. Etched‑track forms and surface densification reflect structural reorganization.
🔗 doi.org/10.1016/j.jnoncrysol.2026.124027

🌱 Fukushima soil survey shows variation in ¹²⁹I, ¹³¹I, and ¹²⁹ᵐTe. ¹²⁹I/¹³¹I ratios (6.4–105) indicate single‑source dep...
16/02/2026

🌱 Fukushima soil survey shows variation in ¹²⁹I, ¹³¹I, and ¹²⁹ᵐTe. ¹²⁹I/¹³¹I ratios (6.4–105) indicate single‑source deposition NW of FDNPP, while central‑west areas suggest multiple events and the south shows distinct ¹²⁹ᵐTe traits.
🔗doi.org/10.1016/j.nimb.2026.166033

🌲 Wildfires in contaminated forests alter radiocesium mobility: water‑soluble ¹³⁷Cs rises in burned litter with temperat...
16/02/2026

🌲 Wildfires in contaminated forests alter radiocesium mobility: water‑soluble ¹³⁷Cs rises in burned litter with temperature, while soils show reduced release and stronger retention under low‑temperature combustion.
🔗 doi.org/10.1021/acs.est.5c10144

🌊 Long‑term monitoring (1987–2023) shows seasonal cycles in dissolved ¹³⁷Cs in the Dnieper River, driven mainly by tempe...
16/02/2026

🌊 Long‑term monitoring (1987–2023) shows seasonal cycles in dissolved ¹³⁷Cs in the Dnieper River, driven mainly by temperature‑dependent sediment desorption. Models successfully reproduce both decline and seasonal variability.
🔗 doi.org/10.1016/j.jece.2025.120636

🧪A study reveals that pumped-storage dam operation markedly decreases radioactive Cs in kokanee by exporting contaminate...
14/10/2025

🧪A study reveals that pumped-storage dam operation markedly decreases radioactive Cs in kokanee by exporting contaminated detritus and limiting trophic transfer. Human water control can thus mitigate radiocesium cycling. 🔗doi.org/10.1016/j.jenvrad.2025.107827

住所

Tsukuba-shi, Ibaraki
3058577

営業時間

月曜日 09:00 - 17:00
火曜日 09:00 - 17:00
水曜日 09:00 - 17:00
木曜日 09:00 - 17:00
金曜日 09:00 - 17:00

電話番号

+298534226

ウェブサイト

アラート

筑波大学 放射線・アイソトープ地球システム研究センターがニュースとプロモを投稿した時に最初に知って当社にメールを送信する最初の人になりましょう。あなたのメールアドレスはその他の目的には使用されず、いつでもサブスクリプションを解除することができます。

ショートカット

共有する