GAFCHROMIC FILM AS A FAST VISUAL INDICATOR OF RADIATION EXPOSURE OF FIRST RESPONDERS.

Ünal Ören; Christopher Rääf; Sören Mattsson

doi:10.1093/rpd/ncr374

GAFCHROMIC FILM AS A FAST VISUAL INDICATOR OF RADIATION EXPOSURE OF FIRST RESPONDERS.

Ünal Ören, Christopher Rääf, Sören Mattsson

Medical Radiation Physics, Malmö

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

Abstract

Three types of Gafchromic films have been studied to investigate their potential for use as a visually readable dosemeter for persons acting as first responders in connection with radiological or nuclear emergencies. The two most sensitive film types show a pronounced variation in sensitivity by photon energy and are therefore not suitable for use in cases of unknown exposures. The third film type tested (RTQA2), which is intended for quality control in radiation therapy has a sensitivity that is independent of the radiation quality, and is therefore considered as the most optimal for visual reading in situ. Tests carried out on a group of 10 human observers showed that absorbed doses down to 40 mGy can be detected by the eye. Read by a portable densitometer, qualitative absorbed dose estimates down to 9 mGy can be achieved. The colour change is obtained instantaneously, giving first responders immediate information about the presence of beta-, gamma- and X-ray radiation.

Original language	English
Pages (from-to)	119-123
Journal	Radiation Protection Dosimetry
Volume	150
DOIs	https://doi.org/10.1093/rpd/ncr374
Publication status	Published - 2012

Subject classification (UKÄ)

Radiology, Nuclear Medicine and Medical Imaging

Access to Document

10.1093/rpd/ncr374

http://www.ncbi.nlm.nih.gov/pubmed/21926417?dopt=Abstract

1 Doctoral Thesis (compilation)

Radiation and radionuclide measurements at radiological and nuclear emergencies. Use of instruments and methods intended for clinical radiology and nuclear medicine.
Ören, Ü., 2016, Lund: Lund University: Faculty of Medicine. 49 p.
Research output: Thesis › Doctoral Thesis (compilation)

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Cite this

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title = "GAFCHROMIC FILM AS A FAST VISUAL INDICATOR OF RADIATION EXPOSURE OF FIRST RESPONDERS.",

abstract = "Three types of Gafchromic films have been studied to investigate their potential for use as a visually readable dosemeter for persons acting as first responders in connection with radiological or nuclear emergencies. The two most sensitive film types show a pronounced variation in sensitivity by photon energy and are therefore not suitable for use in cases of unknown exposures. The third film type tested (RTQA2), which is intended for quality control in radiation therapy has a sensitivity that is independent of the radiation quality, and is therefore considered as the most optimal for visual reading in situ. Tests carried out on a group of 10 human observers showed that absorbed doses down to 40 mGy can be detected by the eye. Read by a portable densitometer, qualitative absorbed dose estimates down to 9 mGy can be achieved. The colour change is obtained instantaneously, giving first responders immediate information about the presence of beta-, gamma- and X-ray radiation.",

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Y1 - 2012

N2 - Three types of Gafchromic films have been studied to investigate their potential for use as a visually readable dosemeter for persons acting as first responders in connection with radiological or nuclear emergencies. The two most sensitive film types show a pronounced variation in sensitivity by photon energy and are therefore not suitable for use in cases of unknown exposures. The third film type tested (RTQA2), which is intended for quality control in radiation therapy has a sensitivity that is independent of the radiation quality, and is therefore considered as the most optimal for visual reading in situ. Tests carried out on a group of 10 human observers showed that absorbed doses down to 40 mGy can be detected by the eye. Read by a portable densitometer, qualitative absorbed dose estimates down to 9 mGy can be achieved. The colour change is obtained instantaneously, giving first responders immediate information about the presence of beta-, gamma- and X-ray radiation.

AB - Three types of Gafchromic films have been studied to investigate their potential for use as a visually readable dosemeter for persons acting as first responders in connection with radiological or nuclear emergencies. The two most sensitive film types show a pronounced variation in sensitivity by photon energy and are therefore not suitable for use in cases of unknown exposures. The third film type tested (RTQA2), which is intended for quality control in radiation therapy has a sensitivity that is independent of the radiation quality, and is therefore considered as the most optimal for visual reading in situ. Tests carried out on a group of 10 human observers showed that absorbed doses down to 40 mGy can be detected by the eye. Read by a portable densitometer, qualitative absorbed dose estimates down to 9 mGy can be achieved. The colour change is obtained instantaneously, giving first responders immediate information about the presence of beta-, gamma- and X-ray radiation.

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DO - 10.1093/rpd/ncr374

M3 - Article

SN - 1742-3406

VL - 150

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JO - Radiation Protection Dosimetry

JF - Radiation Protection Dosimetry

ER -

GAFCHROMIC FILM AS A FAST VISUAL INDICATOR OF RADIATION EXPOSURE OF FIRST RESPONDERS.

Abstract

Subject classification (UKÄ)

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Research output

Radiation and radionuclide measurements at radiological and nuclear emergencies. Use of instruments and methods intended for clinical radiology and nuclear medicine.

Cite this