title: [Neutron flow measurements in the d(14) + Be neutron radiation field from the cyclotron in Essen].
abstract: It exists the possibility in the neutron therapy of specific tumours to increase the local energy dose in the tumour by treatment with fast neutrons under use of B-10. Thermal neutrons cause the neutron capture reaction B-10(n, alpha)Li-7 in tissue. A sufficiently high number of thermic neutrons is necessary combined with a possibly selective concentration of B-10 in the tumour as target volume for the clinical application. Gold foils were activated in a water phantom at several depths for the quantitative determination of the thermal neutron fluence. A result of this measurements is a maximal thermal neutron fluence of 1.44 X 10(10) cm-2 at depth of 5 cm with applied total energy dose of 0.8 Gy.
authors.affiliation: Institut für Medizinische Strahlenphysik, Universitätsklinikum, Essen.
authors.forename: F
authors.initials: F
authors.lastname: Pöller
authors.forename: W
authors.initials: W
authors.lastname: Sauerwein
authors.forename: D
authors.initials: D
authors.lastname: Rau
authors.forename: F M
authors.initials: FM
authors.lastname: Wagner
authors.forename: K
authors.initials: K
authors.lastname: Olthoff
authors.forename: J
authors.initials: J
authors.lastname: Rassow
authors.forename: H
authors.initials: H
authors.lastname: Sack
mesh_terms: D005214:Fast Neutrons / Q000627:therapeutic use*; D005860:Germany, West; D006046:Gold; D006801:Humans; D008961:Models, Structural; D009369:Neoplasms / Q000532:radiotherapy; D009502:Neutrons / Q000627:therapeutic use*; D010315:Particle Accelerators; D011874:Radiometry / Q000295:instrumentation; D011879:Radiotherapy Dosage
chemical_list: D006046:Gold
vernacular_title: Neutronenfluenzmessungen im d(14) + Be-Neutronenstrahlungsfeld des Zyklotrons in Essen.