Measurement of ultrasonic attenuation coefficient in polymer gel dosimeters

Melissa L. Mather; Paul H. Charles; Clive Baldock

doi:10.1088/0031-9155/48/20/N01

Measurement of ultrasonic attenuation coefficient in polymer gel dosimeters

Melissa L. Mather, Paul H. Charles, Clive Baldock

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54 Citations (Scopus)

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
Pages (from-to)	N269-N275
Number of pages	7
Journal	Physics in Medicine and Biology
Volume	48
Issue number	20
DOIs	https://doi.org/10.1088/0031-9155/48/20/N01
Publication status	Published - 2003
Externally published	Yes

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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.",

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AU - Charles, Paul H.

AU - Baldock, Clive

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AB - 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.

UR - https://www.scopus.com/pages/publications/0142213216

U2 - 10.1088/0031-9155/48/20/N01

DO - 10.1088/0031-9155/48/20/N01

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SP - N269-N275

JO - Physics in Medicine and Biology

JF - Physics in Medicine and Biology

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ER -

Measurement of ultrasonic attenuation coefficient in polymer gel dosimeters

Abstract

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