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- 2012 (5) (entfernen)
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Schlagworte
- Earthen materials (2)
- Biomedical equipment (1)
- Brick masonry (1)
- Compression test (1)
- Cyclic tests (1)
- Diagonal compression test (1)
- Duoplasmatrons (1)
- Dynamic loads (1)
- Earth blocks (1)
- Eye (1)
Characterisation of earthen elements. A comparison between earth block masonry, rammed earth and cob
(2012)
Overview of different strengthening techniques applied on walls used in historical structures
(2012)
The therapy of eye tumors with fast protons is an excellent tool giving very high local control rates. At the Helmholtz-Zentrum Berlin (HZB) almost 1800 patients were treated since 1998. A 2 MV Tandetron was installed as injector for the k = 132 HZB cyclotron. Using the standard 358 duoplasmatron ion source with direct extraction of negative hydrogen ions an extremely stable proton beam can be delivered, both on the short-term and the long-term scale. The hair-needle filaments made from thoriated tungsten wires have safe operation times of more than 1000 h.