Technische Auslegung eines Flüssigmetall-Spallationstargets am Beispiel der Europäischen Spallations-Neutronenquelle ESS
Technische Auslegung eines Flüssigmetall-Spallationstargets am Beispiel der Europäischen Spallations-Neutronenquelle ESS
Spallation neutron sources are important in materials science as well as they may become for the transmutation of isotopes to mitigate nuclear walte disposal problems or for the production of reactor fuel. A basic and important common feature of these machines is the operation with subcritical core...
| Personal Name(s): | Guttek, B. (Corresponding author) |
|---|---|
| Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
| Imprint: |
Jülich
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag
2000
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| Physical Description: |
VIII, 158 p. |
| Document Type: |
Report Book |
| Research Program: |
ohne Topic |
| Series Title: |
Berichte des Forschungszentrums Jülich
3737 |
| Link: |
OpenAccess OpenAccess |
| Publikationsportal JuSER |
|
Spallation neutron sources are important in materials science as well as they may become for the transmutation of isotopes to mitigate nuclear walte disposal problems or for the production of reactor fuel. A basic and important common feature of these machines is the operation with subcritical cores driven by a particle accelerator as external proton source directing such protons to a target to free neutrons used for experiments or isotope transmutation. For scientific application, spallation sources for neutron scattering as main purpose are operating since several decades. Their neutron flux intensity, especially taking into account the option of pulsed proton beams, rnake them an interesting alternative to a research reactor. With increasing proton beam power they represent technological steps approaching a firnt operating transmutation machine. With the technical specification of the European Spallation Source ESS the goal to reach high neutron fluxes should be achieved by forming short proton pulses under maximum acceptahle beam focusing on the target. The hereby produced loads on target structures, the achievable neutronic performance and the layout of the target station are important aspects for the choice of the target concept. The main point in the presented document is the demonstration of ongoing and planned steps in the layout and design engineering of the ESS Target Unit including experimental efforts. A mechanism for target concept selection is also presented which in the following is applied to justify the decision for a liquid metal Mercury Target for the ESS. |