An organic dye in a polymer matrix – A search for a scintillator with long luminescent lifetime

Lars René Lindvold; Anders Ravnsborg Beierholm; Claus Erik Andersen

doi:10.1016/j.radmeas.2009.11.021

An organic dye in a polymer matrix – A search for a scintillator with long luminescent lifetime

Lars René Lindvold, Anders Ravnsborg Beierholm, Claus Erik Andersen

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

Fiber-coupled organic plastic scintillators enable dose rate monitoring in conjunction with pulsed radiation sources like linear medical accelerators. The accelerator, however, generates a significant amount of stray ionizing radiation. This radiation excites the long optical fiber cable (15–20 m), connecting the scintillator with the optical detector circuit, causing parasitic luminescence in the optical fiber. In this paper we propose a method for circumventing this problem. The method is based on the use of an organic scintillator with a long luminescent lifetime (room temperature phosphorescence). The long lifetime of the scintillator signal facilitates a temporal gating of the dose rate signal with respect to the parasitic luminescence from the optical fiber.

Original language	English
Journal	Radiation Measurements
Volume	45
Issue number	3-6
Pages (from-to)	615-617
ISSN	1350-4487
DOIs	https://doi.org/10.1016/j.radmeas.2009.11.021
Publication status	Published - 2010
Event	7th European Conference on Luminescent Detectors and Transformers of Ionizing Radiation - Kraków, Poland Duration: 12 Jul 2009 → 17 Jul 2009 Conference number: 7

Conference

Conference	7th European Conference on Luminescent Detectors and Transformers of Ionizing Radiation
Number	7
Country/Territory	Poland
City	Kraków
Period	12/07/2009 → 17/07/2009

Keywords

Radiation research and nuclear technologies
Radiation physics

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10.1016/j.radmeas.2009.11.021

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title = "An organic dye in a polymer matrix – A search for a scintillator with long luminescent lifetime",

abstract = "Fiber-coupled organic plastic scintillators enable dose rate monitoring in conjunction with pulsed radiation sources like linear medical accelerators. The accelerator, however, generates a significant amount of stray ionizing radiation. This radiation excites the long optical fiber cable (15–20 m), connecting the scintillator with the optical detector circuit, causing parasitic luminescence in the optical fiber. In this paper we propose a method for circumventing this problem. The method is based on the use of an organic scintillator with a long luminescent lifetime (room temperature phosphorescence). The long lifetime of the scintillator signal facilitates a temporal gating of the dose rate signal with respect to the parasitic luminescence from the optical fiber.",

keywords = "Radiation research and nuclear technologies, Radiation physics, Str{\aa}lingsfysik, Str{\aa}lingsforskning og nukleare teknologier",

author = "Lindvold, {Lars Ren{\'e}} and Beierholm, {Anders Ravnsborg} and Andersen, {Claus Erik}",

year = "2010",

doi = "10.1016/j.radmeas.2009.11.021",

language = "English",

volume = "45",

pages = "615--617",

journal = "Radiation Measurements",

issn = "1350-4487",

publisher = "Pergamon Press",

number = "3-6",

note = "7th European Conference on Luminescent Detectors and Transformers of Ionizing Radiation, LUMDETR 2009 ; Conference date: 12-07-2009 Through 17-07-2009",

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AU - Lindvold, Lars René

AU - Beierholm, Anders Ravnsborg

AU - Andersen, Claus Erik

N1 - Conference code: 7

PY - 2010

Y1 - 2010

N2 - Fiber-coupled organic plastic scintillators enable dose rate monitoring in conjunction with pulsed radiation sources like linear medical accelerators. The accelerator, however, generates a significant amount of stray ionizing radiation. This radiation excites the long optical fiber cable (15–20 m), connecting the scintillator with the optical detector circuit, causing parasitic luminescence in the optical fiber. In this paper we propose a method for circumventing this problem. The method is based on the use of an organic scintillator with a long luminescent lifetime (room temperature phosphorescence). The long lifetime of the scintillator signal facilitates a temporal gating of the dose rate signal with respect to the parasitic luminescence from the optical fiber.

AB - Fiber-coupled organic plastic scintillators enable dose rate monitoring in conjunction with pulsed radiation sources like linear medical accelerators. The accelerator, however, generates a significant amount of stray ionizing radiation. This radiation excites the long optical fiber cable (15–20 m), connecting the scintillator with the optical detector circuit, causing parasitic luminescence in the optical fiber. In this paper we propose a method for circumventing this problem. The method is based on the use of an organic scintillator with a long luminescent lifetime (room temperature phosphorescence). The long lifetime of the scintillator signal facilitates a temporal gating of the dose rate signal with respect to the parasitic luminescence from the optical fiber.

KW - Radiation research and nuclear technologies

KW - Radiation physics

KW - Strålingsfysik

KW - Strålingsforskning og nukleare teknologier

U2 - 10.1016/j.radmeas.2009.11.021

DO - 10.1016/j.radmeas.2009.11.021

M3 - Conference article

SN - 1350-4487

VL - 45

SP - 615

EP - 617

JO - Radiation Measurements

JF - Radiation Measurements

IS - 3-6

T2 - 7th European Conference on Luminescent Detectors and Transformers of Ionizing Radiation

Y2 - 12 July 2009 through 17 July 2009

ER -

An organic dye in a polymer matrix – A search for a scintillator with long luminescent lifetime

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