PubMed Health⌕ Search

Biomedical subjects

W Becher

Publications and source records attributed to W Becher.

8 recordsLinked to original sources
PubMed2000

Depth scanning for a conformal ion beam treatment of deep seated tumours.

Only target-conformal treatment allows one to exploit the advantages of ion beams (the increased dose and high biological efficiency at the end of the particle range) to a maximum extent. Up to now, target-conformal treatments such as spot scanning or intensity-controlled raster scanning have used fast magnetic lateral deflection in one or two directions perpendicular to the beam axis and a slow range variation in the longitudinal axis by active or passive energy variation. The present paper describes a new method for conformal irradiation with a fast intensity-controlled longitudinal scan in the beam direction, called 'depth scanning'. Its advantages and disadvantages will be discussed. First experimental results from depth scanning will be presented.

Dose-Response Relationship, Radiation↗
PubMed1978

[Integration of the physically handicapped into a regular school (author's transl)].

Owing to manifold changes in the external conditions of the Freiherr-vom-Stein-Schule and the rehabilitation centre "Lichtenau" as well as the shift of emphasis in society's attitudes vis-a-vis the disabled, it seemed necessary to prepare a further report on the experiences gained with this school experiment in Hessisch-Lichtenau. A short survey of the school's personnel and facilities as well as the organisational structure of the co-operation between these two institutions is followed by a detailed description of the underlying paedagogical conception and the tasks resulting from it. Despite existing limitations and numerous difficulties it can be said that this school experiment has yielded positive results. This is evidenced by the impressive number of physically handicapped people who have left this school with a qualifying examination and are now--as far as it is known--in gainful employment. These figures and the public education efforts carried out by the rehabilitation centre have given rise to the setting up of similar facilities. The article closes with a report on a training programme developed on behalf of the Hessen Minister of Cultural Affairs, which is intended to provide all student teachers working at general schools a basic knowledge in special education.

Adolescent↗