Effect of Radiation on Germanium Doped SiO2 Fibres

We report comparative effect of radiation on Germanium incapacitated Optical fibres and commercially available TLD-100. The experiments were carried out using Siemens linear accelerator (LINAC) Primus Multileaf Collimator (MLC) 3339 to deliver photon and electron beams. The Harshaw model 3500 TLD reader with WinREMS software were used in this experiment. Both media were irradiated with 6 x106 eV electrons and 6 x106 volts photons beam. We found a good linearity for TL dose in the range from 20 to 240 mGy. Comparative studies of these compounds indicate that the TL responses using photon and electron irradiation are similar and the average intensity is enhanced by about 1.30 times in electrons than those for photon irradiation. The information of the mini review report of this paper presents in valuable for clinical linear accelerators applications.

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The Thermoluminescence Performance of Ge- Doped Optical Fibres To 6 Mv Photon Irradiations

Jurnal Teknologi ◽

10.11113/jt.v71.3851 ◽

2014 ◽

Vol 71 (5) ◽

Author(s):

E.I.M.K. Ariffin ◽

F. Sallih ◽

S. Hashim ◽

S. Zakariah ◽

M.I.C Pi

Keyword(s):

Optical Fibre ◽

Dose Response ◽

Linear Accelerator ◽

Radiation Dosimetry ◽

Low Dose ◽

Optical Fibres ◽

Photon Irradiation ◽

Linear Dose ◽

Different Diameters

The study focus on thermoluminescence (TL) response of five different diameters ~120, 241, 362, 483 and 604 μm of 8 mol% Ge-doped optical fibres. The irradiation was performed using Linear Accelerator (LINAC) Model Primus MLC Siemens provided by the Hospital Sultan Ismail, Johor Bahru at 6 MV photon irradiation with delivered doses ranging from 0.5 – 4.0 Gy. The results show the linear dose response against TL signals up to 4 Gy. The diameter of 483 μm optical fibre shows the highest in TL dose response and sensitivity compared to other fibres. The sensitivity of 483 µm optical fibre are almost 1.6 times more than 604 µm. The linear dose response at low dose makes this optical fibre suitable to be used in radiation dosimetry application.

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A technique for total skin electron irradiation using six large flattened electron beams: implementation on linear accelerators having different modes of electron beam production

British Journal of Radiology ◽

10.1259/0007-1285-62-740-744 ◽

1989 ◽

Vol 62 (740) ◽

pp. 744-748 ◽

Cited By ~ 6

Author(s):

Ellen Grein El-Khatib ◽

Jurek Rymel ◽

Jazi Al-Mokhlef

Keyword(s):

Electron Beam ◽

Electron Irradiation ◽

Electron Beams ◽

Linear Accelerators ◽

Beam Production

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Measurements of peripheral dose for multileaf collimator based linear accelerator

Reports of Practical Oncology & Radiotherapy ◽

10.1016/s1507-1367(06)71073-2 ◽

2006 ◽

Vol 11 (6) ◽

pp. 281-285 ◽

Cited By ~ 1

Author(s):

R. Balasubramanian ◽

P. Sellakumar ◽

Ramesh S. Bilimagga ◽

Sanjay S. Supe ◽

B.N. Sankar

Keyword(s):

Linear Accelerator ◽

Multileaf Collimator ◽

Peripheral Dose

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Physical characteristics of photon and electron beams from a dual energy linear accelerator

Medical Dosimetry ◽

10.1016/0958-3947(94)00019-f ◽

1995 ◽

Vol 20 (1) ◽

pp. 55-66 ◽

Cited By ~ 6

Author(s):

Anil K. Sharma ◽

Sanjay S. Supe ◽

N. Anantha ◽

K. Subbarangaiah

Keyword(s):

Linear Accelerator ◽

Electron Beams ◽

Dual Energy ◽

Physical Characteristics

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Impact of the high-definition multileaf collimator on linear accelerator-based intracranial stereotactic radiosurgery

British Journal of Radiology ◽

10.1259/bjr/19726857 ◽

2011 ◽

Vol 84 (1003) ◽

pp. 629-638 ◽

Cited By ~ 19

Author(s):

J A Tanyi ◽

C M Kato ◽

Y Chen ◽

Z Chen ◽

M Fuss

Keyword(s):

Stereotactic Radiosurgery ◽

Linear Accelerator ◽

Multileaf Collimator ◽

High Definition

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Dosimetric Characterization of Small Radiotherapy Electron Beams Collimated by Circular Applicators with the New Microsilicon Detector

Applied Sciences ◽

10.3390/app12020600 ◽

2022 ◽

Vol 12 (2) ◽

pp. 600

Author(s):

Serenella Russo ◽

Silvia Bettarini ◽

Barbara Grilli Leonulli ◽

Marco Esposito ◽

Paolo Alpi ◽

...

Keyword(s):

Radiation Therapy ◽

Electron Beams ◽

High Energy ◽

Field Size ◽

The Novel ◽

Linear Accelerators ◽

Depth Dose ◽

Dosimetric Data ◽

Output Factors ◽

Dose Measurements

High-energy small electron beams, generated by linear accelerators, are used for radiotherapy of localized superficial tumours. The aim of the present study is to assess the dosimetric performance under small radiation therapy electron beams of the novel PTW microSilicon detector compared to other available dosimeters. Relative dose measurements of circular fields with 20, 30, 40, and 50 mm aperture diameters were performed for electron beams generated by an Elekta Synergy linac, with energy between 4 and 12 MeV. Percentage depth dose, transverse profiles, and output factors, normalized to the 10 × 10 cm2 reference field, were measured. All dosimetric data were collected in a PTW MP3 motorized water phantom, at SSD of 100 cm, by using the novel PTW microSilicon detector. The PTW diode E and the PTW microDiamond were also used in all beam apertures for benchmarking. Data for the biggest field size were also measured by the PTW Advanced Markus ionization chamber. Measurements performed by the microSilicon are in good agreement with the reference values for all the tubular applicators and beam energies within the stated uncertainties. This confirms the reliability of the microSilicon detector for relative dosimetry of small radiation therapy electron beams collimated by circular applicators.

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