Institut für Kernchemie

Scientific profileof the Institute of Nuclear Chemistry and

the research reactor TRIGA Mainz

Chemistry / physics of the

heaviest elementsJ.V. Kratz

Fundamental research in

nuclear chemistryJ. V. Kratz

Nuclear chemistry in life sciences

F. Rösch

Nucleon research

J.V. Kratz, C. Plonka-Spehr

Research reactor TRIGA

MainzG. Hampel

Radio-pharmaceutical

chemistryF. Rösch

Spectroscopic methodsT. Reich

W. Nörtershäuser

Speciation / analysis of the environment

T. ReichG. Hampel

Education and training

Ultratrace Analysiswith Laser Radiation

Ultratrace analysis with RIMS

Principal of the resonance laser ionization mass spectrometry (RIMS):

1. Production of an atomic beam

2. Efficient three step ionization of the atoms by lasers

3. Mass separation of the ions by a time-of-flight mass spectrometer

4. Extremely high isotopic selectivity of 5×1012 and low experimental limit of detection of 106 atoms per sample

•Plutonium in the environment– Powder sample from the Elbmarsch– Water sample from the North Sea and the Irish Sea– Incorporation measurements – Stolen plutonium from a reprocessing facility– Uranium amunitions from the Kosovo– Water samples from Rheinland-Pfalz

•Calcium-41 in the biological medicine

•Uranium-236 in the environment

Applications of ultratrace analysis with RIMS

Application of synchrotron radiation for structural analysis

Investigation of long-lived radio-nuclides (actinides) in

– aqueous solutions,– soils,– plants and– microorganisms

by X-ray absorption fine structure (XAFS) spectroscopy

Information from XAFS spectra Molecular symmetry and oxidation state

Information from XAFS spectra

Bond distances and coordination numbers

The UNILAC-Accelerator

A facility to produce artificial elements is installed at GSI-Darmstadt.

Synthesis of artificial elements by nuclear fission

Island of stability in the N,Z diagram

N

Periodic Table of the Elements (2008)27 artificially produced elements

Chemistry of the heaviest elements (transactinides)

Radiopharmaceutical chemistry

Nuclear chemistry in life sciences

Membrane receptors (Somatostatin): Diagnosis and therapy of neuro-endocrine tumors

using 86/90Y-labeled peptides

Glycolysis: Visualization of glucose metabolism using 2-[18F]FDG(2-[18F]fluorodesoxy-glucose)

HO

HO 18F

COOHH

NH2

Brain researchSynthesis of neurotransmitters

Dopamine receptor system: Parkinson, Schizophrenia, ...Opiate receptor system: Pain, addiction, ...Glucose metabolisms: Alzheimer, epilepsy, ...Benzodiazepine receptor system: Alcohol dependency, fear,…

Positron Emission Tomography (PET)

Reactor Training Course for theReactor Training Course for the

2008

University of South Carolina

TRIGA Mainz

Dr. Gabriele HampelJohannes Gutenberg - Universität Mainz