Measurements and evaluations of activation cross sections of proton and deuteron induced reactions on metals F. T árkányi , S. Takács, F. Ditrói, B. Király, F. Szelecsényi, Z. Kovács Institute of Nuclear Research of the Hungarian Academy of Sciences (ATOMKI), Debrecen, Hungary
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Measurements and evaluations of activation cross sections of proton and deuteron induced reactions on metals F. Tárkányi, S. Takács, F. Ditrói, B. Király,
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Measurements and evaluations of activation cross sections
of proton and deuteron induced reactions on metals
F. Tárkányi, S. Takács, F. Ditrói, B. Király, F. Szelecsényi, Z. Kovács
Institute of Nuclear Research of the Hungarian Academy of Sciences
(ATOMKI), Debrecen, Hungary
Topics
• Introduction
• Status of
charged particle activation data
• Experimental works
• Compilations and evaluations
• Possible contributions
Introduction
• Main task and profile of the Atomki Nuclear Reaction Data Group :
measurement, compilation, evaluation and application of low and medium energy charged particle nuclear reaction data
• In the frame of international collaborations
• Measurement, compilation and evaluation are connected to international projects and to the every day applications at the home institute and at institutes of collaborating partners
Collaborating partner institutes
• Institute of Nuclear Research of the Hungarian Academy of Sciences (ATOMKI), Debrecen, Hungary
• National Institute of Radiological Sciences (NIRS), Chiba, Japan
• iThemba Laboratory for Accelerator Based Sciences, Somerset West, South Africa
Status of proton and deuteron induced activation data (I)
• Aim of data measurementsnuclear reaction mechanismmedical isotope productionaccelerator technology
• Data producersnuclear physics laboratoriesradiochemistry laboratories
• Available experimental datamostly low energy datamostly natural target compositiondata only for limited productsvery few systematic studiesdatabase for protons is more complete
• Quality of the datamany old data with outdated monitor and decay datasome new data measured with low “experience”some groups produce reliable datalarge systematic contradictions even in simple cases
• Reasonsbeam energy and intensity measurementtarget thickness and uniformityoverlapping gamma-rayslong target stacksunskilled researchers
Status of proton and deuteron induced activation data (II)
Recommended cross section data to monitor charged particle beam parameters (energy, intensity) 22 reactions (IAEA CRP 1995-1999)
Recommended cross sections and integral yields for production of diagnostic medical radioisotopes for SPECT and PET studies17 reactions (IAEA CRP 1995-1999)
Recommended cross sections and integral yields for production of therapeutic radioisotopes 35 reactions (IAEA CRP 2003-2007)
Recommended database for wear studies by using charged particle induced Thin Layer Activation Technique (in progress)
Database for charged particle activation of targets used for isotope production (in progress)
Possible contributions
to FENDL-3
Measurement of missing experimental data taking into account the irradiation possibilities
Compilation of literature experimental data
Critical evaluation of the experimental database
Selection of reliable datasets
Participation in the preparation of recommended datasets (cross section, integral yield) in collaboration with theoretical groups
Validation of recommended data sets with integral measurements