[Neutron flow measurements in the d(14) + Be neutron radiation field from the cyclotron in Essen].
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.
Pöller
F
F
Institut für Medizinische Strahlenphysik, Universitätsklinikum, Essen.
Sauerwein
W
W
Rau
D
D
Wagner
F M
FM
Olthoff
K
K
Rassow
J
J
Sack
H
H
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
D006046:Gold
Neutronenfluenzmessungen im d(14) + Be-Neutronenstrahlungsfeld des Zyklotrons in Essen.