Abstract
A technique is described for investigation of the ultrasonic attenuation coefficient for evaluation of absorbed dose in polymer gel dosimeters. Using this technique the attenuation coefficient as a function of absorbed dose in PAG and MAGIC polymer gel dosimeters was measured. The ultrasonic attenuation coefficient dose sensitivity for PAG was found to be 2.9±0.3 dB m-1 Gy-1 and for MAGIC gel 4.2 ± 0.3 dB m-1 Gy-1. Unlike previous studies of ultrasonic attenuation in polymer gel dosimeters this technique enables a direct measure of the attenuation coefficient.
| Original language | English |
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| Pages (from-to) | N269-N275 |
| Number of pages | 7 |
| Journal | Physics in Medicine and Biology |
| Volume | 48 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 2003 |
| Externally published | Yes |