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Foto Fischer

Mr.
Dr. Helmut W. Fischer

Faculty 01
Physics/Electrical Engineering Physics/Electrical Engineering

E-Mail: hfischer@physik.uni-bremen.de

Affiliations | Research Topics | Cooperations | Projects | Scientific Activities | Resources


Affiliations

High-Profile Areas
» Marine, Polar and Climate Research


Graduate program
» Postgraduate International Programme in Physics and Electrical Engineering (pip)


Affiliation to an institute
Code Indication deutsch Indication englisch Funcition Keywords deutsch Keywords englisch
IUP  Institut fĂĽr Umweltphysik  Institute of Environmental Physics  Member     



Affialation to a work group
Code Indication deutsch Indication englisch Faculty Keywords deutsch Keywords englisch
LMStRad  Terrestrische Umweltphysik/Landesmessstelle fĂĽr Radioaktivität  Bremen State Radiation Measurements Laboratory/Terrestrial Environmental Physics  F01  Umweltradioaktivität
Radioökologie
Strahlenschutz 
Environmental Radioactivity
Radioecology
Radiation Protection 




Research Topics
Natural sciences
» Particles, Nuclei and Fields
» Statistical Physics, Soft Matter, Biological Physics, Nonlinear Dynamics
» Water Research


Cooperations

Researchers with cooperation
Institution City Category Country of origin
MARUM Bremen University Germany Germany
Medizinische Strahlenphysik Oldenburg University Germany Germany
National Institute of Oceanography Haifa Research Center abroad Israel
Helmholtz Zentrum MĂĽnchen MĂĽnchen Helmholtz Association Germany
Bundesamt fĂĽr Strahlenschutz Salzgitter Governmental Institution Germany Germany
Fukushima University Fukushima University abroad Japan
GEOPOLAR Bremen University Germany Germany



Projects

Most significant projects
Code Indication deutsch Indication englisch Cooperation partners Funding sources/agencies Term
TransAqua TransAqua - Transfer von Radionukliden in aquatischen Ă–kosystemen TransAqua - Transfer of radionuclides in aquatic ecosystems Helmholtz Zentrum MĂĽnchen
U Hannover
TU MĂĽnchen
Hoschschule Ravensburg-Weingarten
KIT
VKTA
U Jena
Helmholtz Zentrum Dresden-Rossendorf
BMBF 2013 - 2017
Radioisotopes in sewage sludge in Japan Untersuchung des Transports von Fukushima-Emissionen in die regionalen Kläranlagen Investigation of the transport of Fukushima-originating radioisotopes into regional sewage plants Fukushima University BMBF, Universität Bremen 2013 - 2017
Referenzbiosphären Modellierung des Radionuklidtransports in Biosphärenobjekten Modelling of radionuclide transport in biosphere objects Helmholtz-Zentrum München - Gesundheit und Umwelt Drittmittel: Bundesamt für Strahlenschutz; Unterauftrag für das Helmholtz-Zentrum München - Gesundheit und Umwelt 2010 - 2012
Identifizierung von Strahlenquellen Identifizierung von Strahlenquellen identification of radiation sources Universität Bremen 2008 - 2013
Ganzkörperzähler Ganzkörperzähler Whole Body Counter Universität Bremen 2008 - 2013
Medizinische Radioisotope im Abwasser Medizinische Radioisotope in Abwasser und Flusssediment Medical radioisotopes in waste water and river sediment Nuclear-cc, Braunschweig Universität Bremen
Drittmittel: BMBF (Kompetenzverbund Strahlenforschung)
2007 - 2017
Geldosimetrie mit Erdfeld-NMR Dosimetrie ionisierender Strahlung mittels Erdfeld-NMR-Relaxometrie an Gelen Dosimetry of ionizing radiation by means of Earth field NMR relaxometry of gels Universität Bremen 2006 - 2014
Radiologische Waffen Medizinische und industrielle Strahlenquellen als radiologische Waffen Medical and industrial radiation sources as radiological weapons Belfer Center for Science and International Affairs, Harvard University Universität Bremen 2005 - 2014
Environmental Radioactivity in Nigeria Umweltradioaktivität in Nigeria Environmental Radioactivity in Nigeria Adekunle Ajasin University, Department of Physics and Electronics, Ondo State, Nigeria Universität Bremen 2005 - 2006
Erdfeld-NMR an porösen Systemen Erdfeld-NMR an porösen Systemen und Boden Earth field NMR of porous systems and soil Universität Bremen 2004 - 2014
Aktivierungsprodukte Aktivierungsprodukte an medizinischen Beschleunigern activation products in medical linear accelerators Universität Oldenburg Universität Bremen;
Drittmittel (Alexander-von-Humboldt-Stiftung)
2004 - 2014
Schnellextraktion von Radiostrontium Schnellextraktion von Radiostrontium aus Umweltproben mittels Kronenether rapid extraction of radiostrontium from environmental samples usig crown ether U Minsk Universität Bremen 2004 - 2006
Sedimentdatierung Sedimentdatierung mit 210Pb und 137Cs sediment chronology using 210Pb and 137Cs MARUM
GEOPOLAR
(and others)
Universität Bremen 2004 - 2016
Radiocesium in Jordanian Soils Radiocäsium in Jordanischen Böden - Herkunft, Inventar und vertikaler Transport Radiocesium in Jordanian soils - origin, inventory and vertical transport Drittmittel: DAAD 2003 - 2007
Umweltradioaktivität IMIS Routine- und Notfallmessungen zur regionalen Umweltradioaktivität routine and emergency measurements of regional environmental radioactivity BMBU, Bonn
BfS, Berlin
SUBV, Bremen
Universität Bremen 1986 - 2020


Agencies that have funded your research during the past five years (public institutions and foundations)
» BMBF
» Other Public Institutions
» DAAD


Expertise
chronology of young sediments (0-150yr BP) based on the radioisotopes Pb-210 and Cs-137

modeling and detection of radioisotope transport in wastewater, river water and river sediment

modeling of radioisotope behaviour in soils near a nuclear waste repository

low-level detection of radioisotopes in a variety of media

radiological emergency support

Earth's field NMR



Scientific Activities


Publications (Hyperlink)
Link (extern): http://www.radioaktivitaet.uni-bremen.de/?Publications http://www.radioaktivitaet.uni-bremen.de/?Publications


Most significant Publications
Fukushima fallout in Northwest German environmental media
Type
Author(s)D. Pittauerová, B. Hettwig, H. W. Fischer
Year2011
InJournal of Environmental Radioactivity
Year2011
Issue102
Pages877-880
Doihttp://dx.doi.org/10.1016/j.jenvrad.2011.06.003
Article
 
Increase in African dust flux at the onset of commercial agriculture in the Sahel region
Type
Author(s)S. Mulitza, D. Heslop, D. Pittauerová, H. W. Fischer, I. Meyer, J.-B. Stuut, M. Zabel, G. Mollenhauer, J. A. Collins, H. Kuhnert, M. Schulz
Year2010
InNature
Year2010
Issue466
Pages226–228
Doidoi:10.1038/nature09213
Article
 
Medical radioisotopes in the environment – following the pathway from patient to river sediment
Type
Author(s)H.W. Fischer, S. Ulbrich, D. Pittauerová, B. Hettwig
Year2009
InJournal of Environmental Radioactivity
Year2009
Issue100
Pages1079-1085
Doihttp://dx.doi.org/10.1016/j.jenvrad.2009.05.002
Article
 
Comparison of Activation Products and Induced Dose Rates in different High-Energy Medical Linear Accelerators
Type
Author(s)H.W. Fischer, B. Tabot, B. Poppe
Year2008
InHealth Physics
Year2008
Issue94
Pages272-278
Doi doi: 10.1097/01.HP.0000291945.15684.a7
Article
 
Rapid 20th Century increase in coastal upwelling off northwest Africa
Type
Author(s)H.V. McGregor, M. Dima, H.W. Fischer and S. Mulitza
Year2007
InScience
Year2007
Issue315
Pages637-639
DoiDOI:10.1126/science.1134839
Article
 


 

First Ph.D. supervisor
Title of the dissertation First name Last name Sex Year
Gamma spectrometry for chronology of recent sediments Pittauerová Daniela weiblich 2013
Applications of Earth’s Field NMR to porous systems and polymer gels Maarten Veevaete männlich 2008
Environmental radioactivity in different climate zones: measurement, terrestrial transport processes and radiation exposure Ahmed Qwasmeh männlich 2008

Second Ph.D. supervisor
Title of the dissertation First name Last name Sex Year Status Bezeichnung Uni
Quantification of short-term erosion rates using the cosmogenic radionuclide 7Be Abhinand Jha männlich 2012 Uni Bremen


 


Conferences organized by you during the past five years

Titel Year Hyperlink
15. Fachgespräch zur Ăśberwachung der Umweltradioaktivität 2013  



Visiting Scientists
Name Term Institution of origin Country of origin
Mohammed Khalil Saeed 2011-2012 Radiation and Isotopes Center Khartoum (RICK) Sudan



Resources

Services
4 high resolution gamma spectrometers
1 portable high resolution gamma spectrometer
1 liquid scintillation counter
4 high resolution alpha spectrometers
1 low background proportional counter
portable radiation protection equipment (dose rate meters, contamination monitors)
homebuilt Earth's field NMR field cycling relaxometer

 
More information


 
ResearcherID: K-6207-2012
ORCID: 0000-0002-0593-5564





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