Thermoluminescent and Monte Carlo dosimetry of IR06‐ brachytherapy source

Saidi, Pooneh; Sadeghi, Mahdi; Hosseini, Seyed Hossein; Tenreiro, Claudio

doi:10.1120/jacmp.v12i4.3581

Cited by 8 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The responses of the TLD have to be corrected for background. This is done by subtracting the average response of background TLDs from the responses of all other TLDs in each measurement [25,32].…”

Section: Thermoluminescent Dosimetersmentioning

confidence: 99%

See 1 more Smart Citation

Production of the ¹⁰³Pd via Cyclotron and Preparation of the Brachytherapy Seed

Saidi¹,

Sadeghi²

2020

Recent Techniques and Applications in Ionizing Radiation Research

Self Cite

View full text Add to dashboard Cite

This study will briefly explain the production of 103 Pd via cyclotron for brachytherapy use. The excitation functions of 103 Rh(p,n) 103 Pd and 103 Rh(d,2n) 103 Pd reactions were calculated using ALICE/91, ALICE/ASH, and TALYS-1.2 codes and compared with published data. Production of 103 Pd was done via 103 Rh(p,n) 103 Pd nuclear reaction. The target was bombarded with 18 MeV protons at 200 μA beam current for 15 h. After irradiation and radiochemical separation of the electroplated rhodium target, at the optimum condition, 103 Pd was absorbed into Amberlite®IR-93 resin. The preparation of the brachytherapy seed, which is loaded by the resin beads, has also been presented. At least, the method to determine the dosimetric parameters for the seed by experimental measurement has been presented.

show abstract

Section: Thermoluminescent Dosimetersmentioning

confidence: 99%

“…• Density: 1.19 g/cm 3 The design of the two phantoms to measure the radial dose and anisotropy functions are based on those of [25]. Figure 7 shows the phantom slab which is used for the experimental measurements of the brachytherapy seed radial dose function values.…”

Section: Phantomsmentioning

confidence: 99%

Production of the ¹⁰³Pd via Cyclotron and Preparation of the Brachytherapy Seed

Saidi¹,

Sadeghi²

2020

Recent Techniques and Applications in Ionizing Radiation Research

Self Cite

View full text Add to dashboard Cite

show abstract

“…The resin beads are packed inside a titanium capsule of 4.7 mm length; 0.7 and 0.8 mm internal and external diameters, respectively; and 0.6 mm thick end caps and with an effective length of 3 mm. 103 -Pd radioactive material is absorbed uniformly in the resin bead volume [23]. Figure 1 shows a schematic diagram of the IR06-103 Pd seed.…”

Section: -Pd Source Descriptionmentioning

confidence: 99%

Modelling, Simulation and Dosimetry of ¹⁰³-Pd Eye Plaque Brachytherapy

Saidi¹,

Sadeghi²

2019

Theory, Application, and Implementation of Monte Carlo Method in Science and Technology

Self Cite

View full text Add to dashboard Cite

In this study, the dose distribution has been calculated for the Collaborative Ocular Melanoma Study (COMS) eye plaques at various diameters 10-22 mm, loaded with the 103-Pd brachytherapy seeds (Model IR06-103 Pd). Several Monte Carlo (MC) simulations have been employed to carry out the gold backing and Silastic insert effect on dose distribution around the eye plaque. Version 5 of the Monte Carlo N-particle (MCNP) code has been used to carry out the simulations. The new palladium seed was modelled in three geometric orientations (ideal, vertical and diagonal). Results are compared with the calculated data for COMS eye plaque loaded with Theragenics model 200 and Best model 2335 palladium-103 seeds and model 6711 iodine-125 seeds. The calculated dose rate constant of the IR06-103 Pd seed was found to be 0.692 AE 0.020 cGy h À1 U À1. The air kerma strength to deliver 85 Gy to tumour apex in a water medium was found to be 4.10 U/seed. The dosimetric parameters calculated in this work for the new palladium seed indicate the IR06-103 Pd seed is suitable for use in brachytherapy. In COMS plaques, the dose distribution to points of interest was compared for three 103-Pd seed models. With the exception of sclera dose and for a given prescription dose, the IR06 seed delivers lower dose ocular points of interest.

show abstract

“…The composition of the Perspex taken to be H, 8%; C, 60%; O, 32%, with a density of 1.18 g/cm 3 . 13 This configuration enables us to verify the dose distributions around the applicator with a high spatial resolution. Fig.…”

Section: Ebt Gafchromic Film Dosimetrymentioning

confidence: 99%