[Dosimetry of ruthenium applicators with an eye phantom and small volume thermoluminescence detectors].
Even though 106Ru/106Rh applicators have been in clinical use over more than two decades for the radiotherapy of malignant uveal melanomas, the dosimetry of emitted beta radiation is still a physical problem. The dose rate at the applicator surface and the depth dose in tissue equivalent material can be determined only within +/- 30% error. Using new cubic-shaped thermoluminescence detectors (TLD) with small volume the dose distribution is examined in water equivalent material (RW-1). The spatial resolution is 14 times better compared to the previous technique. From dose measurements in an eye phantom the homogeneity of nuclide deposition and the depth dose distribution of a 106Ru/106Rh applicator are determined.
Muskalla
K
K
Pothmann
B
B
Alberti
W
W
Bornfeld
N
N
Foerster
M H
MH
Harder
D
D
Hermann
K P
KP
Tabor
P
P
Sack
H
H
Wessing
A
A
D001918:Brachytherapy / Q000295:instrumentation*; D005134:Eye Neoplasms / Q000532:radiotherapy*; D006801:Humans; D008953:Models, Anatomic; D011879:Radiotherapy Dosage; D012429:Ruthenium Radioisotopes / Q000627:therapeutic use*; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation*
D012429:Ruthenium Radioisotopes
Dosimetrie von Rutheniumapplikatoren mit einem Augenphatom und kleinvolumigen Thermolumineszenzdetektoren (TLD).