Characterization of the optically stimulated luminescence nanodot for CT dosimetry

Muhammad Yusuf; Abdelhamid Saoudi; Nazeeh Alothmany; Dheya Alothmany; Sameer Natto; Hattan Natto; Nurul Islam Molla; Noor Mail; Ahmad Hussain; Abdulraheem Abdulrahman Kinsara

Characterization of the optically stimulated luminescence nanodot for CT dosimetry

Muhammad Yusuf^*, Abdelhamid Saoudi, Nazeeh Alothmany, Dheya Alothmany, Sameer Natto, Hattan Natto, Nurul Islam Molla, Noor Mail, Ahmad Hussain, Abdulraheem Abdulrahman Kinsara

^*Corresponding author for this work

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

11 Scopus citations

Abstract

To characterize point dose response of optically stimulated luminescence (OSL) nano dot detector (OSLD) for computed tomography (CT) dosimetry and compare it with the data obtained with various ionization chambers. The OSLD was calibrated at 125 kVp and 15 mAs. A point dose measurement was performed on a custom-made-cylindrical-water phantom (20 cm diameter and 46 cm length) with scan length from 5 to 40 cm range using OSLD. The OSLD was characterized in terms of linearity, re-readability, signal fading, angular dependence, surface dose profile etc. The relative response of OSLD was compared with three PTW ionization chambers:Semiflex 0.125 cm³, Farmer 0.6 cm³ and Pencil 3.14 cm³. The OSLD calibration was achieved to be 52.83±7 counts/mRad. The OSLD were reasonably linear with R2 of 0.9989. The average variation OSLD response during rereadability test was ±1.38%. Negligible variation has been seen after 30minutes resting. The maximum angular dependence was 2%. The variations between the PTW ionization chambers and OSLD for a scanning length of 5-10 cm and 15-40 cm were 8% and 0.5%, respectively.

Original language	English
Pages (from-to)	445-450
Number of pages	6
Journal	Life Science Journal
Volume	11
Issue number	2
State	Published - 2014
Externally published	Yes

Keywords

Dosimetry
Ionization chamber
Nano dot detector
OSL

ASJC Scopus subject areas

General Biochemistry, Genetics and Molecular Biology

Cite this

@article{45bf9b8e5aef418581e00f3f4ace1f02,

title = "Characterization of the optically stimulated luminescence nanodot for CT dosimetry",

abstract = "To characterize point dose response of optically stimulated luminescence (OSL) nano dot detector (OSLD) for computed tomography (CT) dosimetry and compare it with the data obtained with various ionization chambers. The OSLD was calibrated at 125 kVp and 15 mAs. A point dose measurement was performed on a custom-made-cylindrical-water phantom (20 cm diameter and 46 cm length) with scan length from 5 to 40 cm range using OSLD. The OSLD was characterized in terms of linearity, re-readability, signal fading, angular dependence, surface dose profile etc. The relative response of OSLD was compared with three PTW ionization chambers:Semiflex 0.125 cm3, Farmer 0.6 cm3 and Pencil 3.14 cm3. The OSLD calibration was achieved to be 52.83±7 counts/mRad. The OSLD were reasonably linear with R2 of 0.9989. The average variation OSLD response during rereadability test was ±1.38\%. Negligible variation has been seen after 30minutes resting. The maximum angular dependence was 2\%. The variations between the PTW ionization chambers and OSLD for a scanning length of 5-10 cm and 15-40 cm were 8\% and 0.5\%, respectively.",

keywords = "Dosimetry, Ionization chamber, Nano dot detector, OSL",

author = "Muhammad Yusuf and Abdelhamid Saoudi and Nazeeh Alothmany and Dheya Alothmany and Sameer Natto and Hattan Natto and Molla, \{Nurul Islam\} and Noor Mail and Ahmad Hussain and \{Abdulrahman Kinsara\}, Abdulraheem",

year = "2014",

language = "English",

volume = "11",

pages = "445--450",

journal = "Life Science Journal",

issn = "1097-8135",

publisher = "Zhengzhou University",

number = "2",

}

TY - JOUR

T1 - Characterization of the optically stimulated luminescence nanodot for CT dosimetry

AU - Yusuf, Muhammad

AU - Saoudi, Abdelhamid

AU - Alothmany, Nazeeh

AU - Alothmany, Dheya

AU - Natto, Sameer

AU - Natto, Hattan

AU - Molla, Nurul Islam

AU - Mail, Noor

AU - Hussain, Ahmad

AU - Abdulrahman Kinsara, Abdulraheem

PY - 2014

Y1 - 2014

N2 - To characterize point dose response of optically stimulated luminescence (OSL) nano dot detector (OSLD) for computed tomography (CT) dosimetry and compare it with the data obtained with various ionization chambers. The OSLD was calibrated at 125 kVp and 15 mAs. A point dose measurement was performed on a custom-made-cylindrical-water phantom (20 cm diameter and 46 cm length) with scan length from 5 to 40 cm range using OSLD. The OSLD was characterized in terms of linearity, re-readability, signal fading, angular dependence, surface dose profile etc. The relative response of OSLD was compared with three PTW ionization chambers:Semiflex 0.125 cm3, Farmer 0.6 cm3 and Pencil 3.14 cm3. The OSLD calibration was achieved to be 52.83±7 counts/mRad. The OSLD were reasonably linear with R2 of 0.9989. The average variation OSLD response during rereadability test was ±1.38%. Negligible variation has been seen after 30minutes resting. The maximum angular dependence was 2%. The variations between the PTW ionization chambers and OSLD for a scanning length of 5-10 cm and 15-40 cm were 8% and 0.5%, respectively.

AB - To characterize point dose response of optically stimulated luminescence (OSL) nano dot detector (OSLD) for computed tomography (CT) dosimetry and compare it with the data obtained with various ionization chambers. The OSLD was calibrated at 125 kVp and 15 mAs. A point dose measurement was performed on a custom-made-cylindrical-water phantom (20 cm diameter and 46 cm length) with scan length from 5 to 40 cm range using OSLD. The OSLD was characterized in terms of linearity, re-readability, signal fading, angular dependence, surface dose profile etc. The relative response of OSLD was compared with three PTW ionization chambers:Semiflex 0.125 cm3, Farmer 0.6 cm3 and Pencil 3.14 cm3. The OSLD calibration was achieved to be 52.83±7 counts/mRad. The OSLD were reasonably linear with R2 of 0.9989. The average variation OSLD response during rereadability test was ±1.38%. Negligible variation has been seen after 30minutes resting. The maximum angular dependence was 2%. The variations between the PTW ionization chambers and OSLD for a scanning length of 5-10 cm and 15-40 cm were 8% and 0.5%, respectively.

KW - Dosimetry

KW - Ionization chamber

KW - Nano dot detector

KW - OSL

UR - https://www.scopus.com/pages/publications/84897949292

M3 - Article

AN - SCOPUS:84897949292

SN - 1097-8135

VL - 11

SP - 445

EP - 450

JO - Life Science Journal

JF - Life Science Journal

IS - 2

ER -

Characterization of the optically stimulated luminescence nanodot for CT dosimetry

Abstract

Keywords

ASJC Scopus subject areas

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