Medical application of 3-D polymer gel dosemeter evaluated by nuclear magnetic resonance
In: Solid state dosimetry: proceedings of the 13th international conference, Athens, Greece, July 9-13, 2001. Part IIRadiation protection dosimetry 101(1-4):399-402; Jg. 101 (2002) 1-4, S. 399-402
Online
Konferenz
- print, 7 ref
Zugriff:
A polymer-gel dosemeter, which can be evaluated by nuclear magnetic resonance (NMR), was prepared and then a few samples were homogeneously irradiated by a Leksell gamma knife using an 18 mm collimator (60Co gamma photons) to obtain a calibration curve (NMR 1/T2 response to absorbed dose). To measure dose distribution from the Leksell gamma knife, a testing flask filled with the gel was fixed in the head phantom and then irradiated based on a calculated treatment plan. Evaluation of dosemeters was performed on a Siemens EXPERT IT NMR scanner. Dose profiles in X, Y and Z coordinates through the ellipsoidal shape of the dose distribution were obtained to compare experimental results from the irradiated phantom with the treatment planning system calculations. The use of a polymer-gel dosemeter for a verification of stereotactic procedures has some unique advantages which can be summarised as follows: (1) the dosemeter itself is tissue equivalent, (2) three-dimensional dose distributions can be measured. (3) the dosemeter allows patient's procedures to be simulated without any limitations.
Titel: |
Medical application of 3-D polymer gel dosemeter evaluated by nuclear magnetic resonance
|
---|---|
Autor/in / Beteiligte Person: | NOVOTNY, J. JR ; DVORAK, P ; SPEVACEK, V ; TINTERA, J ; NOVOTNY, J ; CECHAK, T |
Link: | |
Quelle: | Solid state dosimetry: proceedings of the 13th international conference, Athens, Greece, July 9-13, 2001. Part IIRadiation protection dosimetry 101(1-4):399-402; Jg. 101 (2002) 1-4, S. 399-402 |
Veröffentlichung: | Oxford: Oxford University Press, 2002 |
Medientyp: | Konferenz |
Umfang: | print, 7 ref |
ISSN: | 0144-8420 (print) |
Schlagwort: |
|
Sonstiges: |
|