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Radiochemistry Lab
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The lab is a radiochemistry lab that investigates the properties of heavy elements and atomic nuclei using chemical methods.

AboutAbout the lab
From the Chemistry of Heavy Elements to Their Link with the Atomic Nucleus
The Radiochemistry Lab studies the chemistry of heavy elements such as the actinides, and the effect that the state of electrons has on the decay of atomic nuclei.
To observe the peculiarities of electrons in heavy elements, the lab also carries out relativistic quantum chemical calculations.
It also investigates the production of radioisotopes used in cancer diagnosis and treatment, as well as the fundamental properties of the elements involved.
On the lab's website, it is introduced under the name "Kasamatsu Lab."
Key terms
- radiochemistry
- A field of chemistry that works with radioactive substances. It also includes studying nuclear physics with chemical methods.
- relativistic quantum chemical calculation
- A method of investigating the electronic states of atoms and molecules computationally, incorporating relativistic effects.
- metastable
- A state in which a nucleus remains excited and does not return to a lower state right away. It is denoted by adding m after the mass number.
NewsLab news
A student received the Young Researcher Excellent Presentation Award at the 70th Symposium on Radiochemistry of the Japan Society of Nuclear and Radiochemical Sciences
A doctoral student received the Poster Award and the Kagaku Dojin Award at the 76th Symposium on Coordination Chemistry
A student received the Excellent Oral Presentation Award and the Excellent Poster Presentation Award at the 44th Symposium on Solvent Extraction
A master's student received a Student Award at APSORC25
A master's student received the Young Researcher Excellent Presentation Award at the 68th Symposium on Radiochemistry of the Japan Society of Nuclear and Radiochemical Sciences
ResearchResearch themes
The lab uses chemical methods to investigate the chemical properties of heavy elements and the relationship between the atomic nucleus and its orbital electrons. It also works on the production of radioisotopes used in cancer diagnosis and treatment, and on research into their fundamental properties.
*Illustrative imageChemistry of Heavy and Superheavy Elements
The lab develops solution chemistry methods for actinides and transactinides to study the chemistry of heavy elements. To observe the peculiarities of 5f and 6d orbital electrons, it also carries out relativistic quantum chemical calculations.
*Illustrative imageChemical Effects on Nuclear Decay
Atomic nuclei and their orbital electrons are generally treated as non-interacting, but for some nuclides the electronic state changes the decay. The lab examines the relationship between decay and chemical species in the metastable nuclei 229mTh and 235mU.
*Illustrative imageProduction and Basic Research of Radioisotopes for Nuclear Medicine
To support the diagnosis and treatment of cancer and other diseases using radioisotopes and radiation, the lab studies the production of radioisotopes and the fundamental properties of the elements used.
MembersFaculty
The members of the Radiochemistry Lab consist of faculty, project researchers, doctoral, master's, and undergraduate students, and administrative staff.As of 2026
- ProfessorYoshitaka Kasamatsu
- LecturerMasashi Kaneko
- Assistant ProfessorHiroyuki Kazama
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Periodic Table Chart with reactive nonmetals” Sandbh / CC BY-SA 4.0 (cropped)
- Chemistry of Heavy and Superheavy Elements: “Uranium tetrafluoride” Chemolunatic / CC BY-SA 4.0 (cropped)
- Chemical Effects on Nuclear Decay: “Particle Tracks in AWAN Expansion Cloud Chamber” Kebuk awan / CC BY-SA 4.0 (cropped)
- Production and Basic Research of Radioisotopes for Nuclear Medicine: “Cyclotron ARRONAX” Popocatomar / CC BY-SA 4.0 (cropped)
- Related lab (高分子反応化学研究室): “Polypropylene Pellets - DPLA - f7c2fa29d14525ce21219452f4a1a316” Quantum Chemical Corporation / CC BY 4.0 (cropped)
- Related lab (同位体化学研究室): “Radio-Chemist closing a hot cell to proect themselves from radiation” Talzir / CC BY-SA 4.0 (cropped)
- Related lab (表面化学研究室): “Scanning tunneling microscope-MHS 2237-IMG 3817” Rama / CC BY-SA 3.0 fr (cropped)
- Related lab (高分子物理化学研究室): “Capillary rheometer 2” Cjp24 / CC BY-SA 4.0 (cropped)
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