Effects of glass and backscatter on measurement of absorbed dose in polyacrylamide gel (PAG) dosimeters

G. J. Michael; C. J. Henderson; K. Nitschke; C. Baldock

doi:10.1088/0031-9155/45/10/402

Effects of glass and backscatter on measurement of absorbed dose in polyacrylamide gel (PAG) dosimeters

G. J. Michael, C. J. Henderson, K. Nitschke, C. Baldock

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Different methodologies are used for calibrating polyacrylamide gel (PAG) dosimeters. One methodology involves injecting nitrogen-filled glass vials with polymer gel. Due to the vials being pre-filled with nitrogen, a nitrogen-filled space remains in the glass vial above the gel. The glass vial is then irradiated using ionizing radiation to polymerize the PAG. Monte Carlo simulations were performed to examine the effects on the radiation field due to the glass vial and the lack of backscatter material due to the nitrogen-filled space. Results for two different formulations of PAG indicated that the influence of the glass and the nitrogen-filled space are negligible.

Original language	English
Pages (from-to)	N133-N138
Number of pages	5
Journal	Physics in Medicine and Biology
Volume	45
Issue number	10
DOIs	https://doi.org/10.1088/0031-9155/45/10/402
Publication status	Published - 2000
Externally published	Yes

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title = "Effects of glass and backscatter on measurement of absorbed dose in polyacrylamide gel (PAG) dosimeters",

abstract = "Different methodologies are used for calibrating polyacrylamide gel (PAG) dosimeters. One methodology involves injecting nitrogen-filled glass vials with polymer gel. Due to the vials being pre-filled with nitrogen, a nitrogen-filled space remains in the glass vial above the gel. The glass vial is then irradiated using ionizing radiation to polymerize the PAG. Monte Carlo simulations were performed to examine the effects on the radiation field due to the glass vial and the lack of backscatter material due to the nitrogen-filled space. Results for two different formulations of PAG indicated that the influence of the glass and the nitrogen-filled space are negligible.",

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AU - Michael, G. J.

AU - Henderson, C. J.

AU - Nitschke, K.

AU - Baldock, C.

PY - 2000

Y1 - 2000

N2 - Different methodologies are used for calibrating polyacrylamide gel (PAG) dosimeters. One methodology involves injecting nitrogen-filled glass vials with polymer gel. Due to the vials being pre-filled with nitrogen, a nitrogen-filled space remains in the glass vial above the gel. The glass vial is then irradiated using ionizing radiation to polymerize the PAG. Monte Carlo simulations were performed to examine the effects on the radiation field due to the glass vial and the lack of backscatter material due to the nitrogen-filled space. Results for two different formulations of PAG indicated that the influence of the glass and the nitrogen-filled space are negligible.

AB - Different methodologies are used for calibrating polyacrylamide gel (PAG) dosimeters. One methodology involves injecting nitrogen-filled glass vials with polymer gel. Due to the vials being pre-filled with nitrogen, a nitrogen-filled space remains in the glass vial above the gel. The glass vial is then irradiated using ionizing radiation to polymerize the PAG. Monte Carlo simulations were performed to examine the effects on the radiation field due to the glass vial and the lack of backscatter material due to the nitrogen-filled space. Results for two different formulations of PAG indicated that the influence of the glass and the nitrogen-filled space are negligible.

U2 - 10.1088/0031-9155/45/10/402

DO - 10.1088/0031-9155/45/10/402

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ER -

Effects of glass and backscatter on measurement of absorbed dose in polyacrylamide gel (PAG) dosimeters

Abstract

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