SU-E-T-112: 18 MV X-Ray Beam Commissioning with the IC Profiler: A Fast 3D Relative Dosimetry Technique Using An Ion Chamber Array in a Solid Tissue-Equivalent Phantom

2011 ◽  
Vol 38 (6Part12) ◽  
pp. 3511-3511
Author(s):  
V Leduc ◽  
C Furstoss ◽  
P Pater ◽  
P Munger ◽  
W Wierzbicki
Keyword(s):  
X Ray ◽  
Solid Tissue ◽  
Ion Chamber ◽  
Tissue Equivalent ◽  
Tissue Equivalent Phantom ◽  
Beam Commissioning

scholarly journals Influence of Different Percentages of Binders on the Physico-Mechanical Properties of Rhizophora spp. Particleboard as Natural-Based Tissue-Equivalent Phantom for Radiation Dosimetry Applications

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1868
Author(s):  
Siti Hajar Zuber ◽  
Nurul Ab. Aziz Hashikin ◽  
Mohd Fahmi Mohd Yusof ◽  
Mohd Zahri Abdul Aziz ◽  
Rokiah Hashim
Keyword(s):  
Mechanical Properties ◽  
Radiation Dosimetry ◽  
Structural Integrity ◽  
Soy Flour ◽  
Lower Percentage ◽  
Internal Bonding ◽  
X Ray ◽  
Tissue Equivalent ◽  
Tissue Equivalent Phantom ◽  
Edx Analyses

Rhizophora spp. particleboard with the incorporation of lignin and soy flour as binders were fabricated and the influence of different percentages of lignin and soy flour (0%, 6% and 12%) on the physico-mechanical properties of the particleboard were studied. The samples were characterised by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), X-ray fluorescence (XRF) and internal bonding. The results stipulated that the addition of binders in the fabrication of the particleboard did not change the functional groups according to the FTIR spectrum. For XRD, addition of binders did not reveal any major transformation within the composites. SEM and EDX analyses for all percentages of binders added showed no apparent disparity; however, it is important to note that the incorporation of binders allows better bonding between the molecules. In XRF analysis, lower percentage of chlorine in the adhesive-bonded samples may be advantageous in maintaining the natural properties of the particleboard. In internal bonding, increased internal bond strength in samples with binders may indicate better structural integrity and physico-mechanical strength. In conclusion, the incorporation of lignin and soy flour as binders may potentially strengthen and fortify the particleboard, thus, can be a reliable phantom in radiation dosimetry applications.

Radiation Exposure of Medical Personnel Accompanying the Patient during the Procedure of Superficial X-Ray Therapy of Children

2019 ◽  
Vol 64 (5) ◽  
pp. 54-57
Author(s):  
С. Смолин ◽  
S. Smolin
Keyword(s):  
Radiation Exposure ◽  
Effective Dose ◽  
Dose Rate ◽  
Medical Personnel ◽  
X Rays ◽  
X Ray ◽  
Treatment Room ◽  
Tissue Equivalent ◽  
Tissue Equivalent Phantom ◽  
Irradiation Process

Purpose: Assessment the radiation situation in the treatment room of superficial x-ray therapy during the irradiation process in order to inform about radiation exposure of medical personnel or a relatives. Material and methods: In the course of the study, a procedure of superficial radiotherapy was simulated using a tissue equivalent phantom with sizes 250×250×150 mm. The radiation control protocol of measurements on the Roentgen TA-02 apparatus was compiled on the basis of SanPiN 2.6.1.1192-03. With the help of a clinical dosimeter DKS-AT1123, the ambient dose-rate of short-term x-rays was measured. In accordance with the requirements for conducting radiation monitoring, measurements were taken directly near the apparatus in areas 60×60 cm at points located at heights corresponding to the head level (160 ± 20 cm), chest level (120 ± 20 cm), gonad level (80 ± 20 cm) and the level of the legs (30 ± 20 cm). On the basis of the obtained data, the value of the effective dose-rate of x-ray radiation for the whole human body was calculated for each area. Taking into account the characteristics of the irradiation regime used in the clinic, the total effective dose received by the medical personnel accompanying the patient for the entire course of radiotherapy was calculated. Results: A drawn up diagram is illustrating the radiation situation in the treatment room of superficial radiotherapy. Based on the results of calculations, it can be concluded that the radiation exposure on the accompanying person during superficial x-ray therapy of children’s hemangiomas does not exceed the maximum permissible dose specified in paragraph 5.4.4 of SanPiN 2.6.1.2523-09. Conclusion: In exceptional cases, a parent or medical personnel may be in the treatment room to support the patient.

Accurate determination of the complex refractive index of solid tissue-equivalent phantom

2012 ◽  
Author(s):  
Jin Wang ◽  
Qing Ye ◽  
Zhichao Deng ◽  
Wenyuan Zhou ◽  
Chunping Zhang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Complex Refractive Index ◽  
Accurate Determination ◽  
Solid Tissue ◽  
Tissue Equivalent ◽  
Tissue Equivalent Phantom

Time-resolved optical imaging of a solid tissue-equivalent phantom

1995 ◽  
Vol 34 (34) ◽  
pp. 8038 ◽  
Author(s):  
Jeremy C. Hebden ◽  
David J. Hall ◽  
Michael Firbank ◽  
David T. Delpy
Keyword(s):  
Optical Imaging ◽  
Time Resolved ◽  
Solid Tissue ◽  
Tissue Equivalent ◽  
Tissue Equivalent Phantom

Polymer Photodetectors for Printable, Flexible, and Fully Tissue Equivalent X‐Ray Detection with Zero‐Bias Operation and Ultrafast Temporal Responses

2021 ◽  
pp. 2001298
Author(s):  
Jessie A. Posar ◽  
Jeremy Davis ◽  
Saree Alnaghy ◽  
Dean Wilkinson ◽  
Sophie Cottam ◽  
...  
Keyword(s):  
Zero Bias ◽  
X Ray ◽  
Tissue Equivalent

Measured and Calculated Dose Distributions from Neutrons Incident on a Tissue-equivalent Phantom

1974 ◽  
Vol 27 (3) ◽  
pp. 289-297 ◽  
Author(s):  
H. H. Hubbell ◽  
Wei-Li Chen ◽  
W. H. Shinpaugh ◽  
T. D. Jones
Keyword(s):  
Dose Distributions ◽  
Tissue Equivalent ◽  
Calculated Dose ◽  
Tissue Equivalent Phantom

A soft deformable tissue-equivalent phantom for diffuse optical tomography

2006 ◽  
Vol 51 (21) ◽  
pp. 5581-5590 ◽  
Author(s):  
Jeremy C Hebden ◽  
Ben D Price ◽  
Adam P Gibson ◽  
Gary Royle
Keyword(s):  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Tissue Equivalent ◽  
Tissue Equivalent Phantom
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