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Journal articles on the topic 'Dosimetry. eng'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Tayyeb, Zuhair. "Utilization of Radiochromic Films for Personnel Dosimetry." مجلة جامعة الملك عبدالعزيز-العلوم الهندسية 24, no. 2 (2014): 97–106. http://dx.doi.org/10.4197/eng.24-2.5.

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Tayyeb, Zuhair. "Use of Cr-39 Polymer for Radiation Dosimetry." Journal of King Abdulaziz University-Engineering Sciences 22, no. 1 (2011): 79–96. http://dx.doi.org/10.4197/eng.22-1.5.

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3

West, William Geoffrey, and Kimberlee Jane Kearfott. "Optically Stimulated Luminescence Dosimetry: An Introduction." Solid State Phenomena 238 (August 2015): 161–73. http://dx.doi.org/10.4028/www.scientific.net/ssp.238.161.

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A subset of solid state materials have long been used as integrating dosimeters because they store energy deposited as a result of their interactions with ionizing radiation and then, when stimulated appropriately, release a proportionate amount of visible or near-visible light. During the 1960s, thermoluminescent dosimeters (TLDs), for which heat is used to extract the stored dosimetric signal, began to replace the photographic film as occupational dosimeters of record and for medical dosimetry. At the end of the twentieth century, a viable optically stimulated luminescent (OSL) material was

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4

Laureau, A., V. Lamirand, A. Gruel, P. Frajtag, and A. Pautz. "DOSIMETRY MODELING AND EXPERIMENTAL VALIDATION FOR THE PETALE PROGRAM IN THE CROCUS REACTOR." EPJ Web of Conferences 247 (2021): 08015. http://dx.doi.org/10.1051/epjconf/202124708015.

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The PETALE experimental program in the CROCUS reactor intends to provide integral measurements on reactivity worth and dosimetry measurement to constrain nuclear data relative to stainless steel heavy reflectors. The experimental setup consists in eight successive plates of pure iron, pure nickel, pure chromium, or nuclear-grade stainless steel set at the close periphery of the core. The plates are interleaved with up to nine dosimeters that consist of thin activation foils with different possible materials to be sensitive to different ranges of the neutron spectrum. A precise measurement with

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5

Wolfel, A., D. Chacón, M. R. Romero, M. Valente, and F. Mattea. "DEVELOPMENT OF POLYMERIC MATERIALS FOR X-RAY DOSIMETRY WITH ENHANCED OPTICAL SENSIBILITY." Anales AFA 31, no. 3 (2020): 101–6. http://dx.doi.org/10.31527/analesafa.2020.31.3.101.

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The use of a new reagent with the capacity of forming colored organo-metallic complexes with metal ions is herein studied for its application in X-Ray dosimetry, aiming to assess its effect on the dose-sensitivity of polymer gel dosimetry. The improvement of the sensitivity of polymeric dosimeters, commonly used to quantitatively register dose distribution in radiotherapy, requires considering both the intrinsic mechanism involved in the irradiation of the dosimetry system (polymerization) and the selected readout technique (e.g. spectroscopy techniques). One of the most used readout methods i

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Chacón, D., M. Romero, F. Mattea, and M. Valente. "DEVELOPMENT OF A LASER SCANNER FOR POLYMER GEL DOSIMETRY." AnalesAFA Vol.31 N.2 31, no. 2 (2020): 55–61. http://dx.doi.org/10.31527/analesafa.2020.31.2.55.

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Advances of the medical application of ionizing radiation, and specifically in cancer treatment, are continuously evolving and gaining higher degrees of complexity. Therefore, the ability to determine and ensure the safety and precision of these techniques must be accompanied by novel dosimetry systems. Polymer gel dosimetry is one of the new and re-markable dosimetry systems that can quantitatively record the absorbed dose and register 3D dose distributions with high resolution while maintaining tissue-equivalent properties. Typical methods used to read the recorded signal in a polymer gel do

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Abdulmalek Rajkhan, Abdulmalek Rajkhan. "GAMOS DICOM Simulation on Occupational EL Dose due to 99mTc and 131I Exposures in Nuclear Medicine Departments." journal of King Abdulaziz University Engineering Sciences 30, no. 1 (2019): 65–78. http://dx.doi.org/10.4197/eng.30-1.5.

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Radiation induced cataracts is a disease that is common amongst radiation exposed staff. About 30 percent of retired occupational radiation workers developed eye lens (EL) cataracts. Epidemiological studies on radiation therapy patients, occupational workers, and atomic bomb survivors show that 0.5 Gy of acute or fractioned radiation dose to EL causes one or both lens to cloud. The annual EL dose limit drawn by the International Commission for Radiation Protection (ICRP) was 150 mSv and was changed in 2012 to 20 mSv averaged over 5 years, with no single year exceeding 50 mSv. The limited numbe

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Landmann, M., A. Wunderlich, T. Kull, F. M. Mottaghy, S. N. Reske, and G. Glatting. "Internal radionuclide therapy." Nuklearmedizin 45, no. 06 (2006): 269–72. http://dx.doi.org/10.1055/s-0038-1625119.

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SummaryAim: Accurate dosimetry must be performed for each patient before therapy with unsealed radionuclides. Recently, the software tool ULMDOS was developed to facilitate planar dosimetric calculations and to support traceability and documentation as a prerequisite for good clinical practice. Here, the extended version of ULMDOS for processing of tomographic data is presented. Methods: ULMDOS is developed in IDL 6.1 (Interactive Data Language) under Windows XP/2000. Serial tomographic data can be loaded in an ECAT7 or DICOM format, and presented as maximum intensity projection. The definitio

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9

Лисин, В., and V. Lisin. "On Some Methodological Issues of Studying Cytogenetic Effects in Cancer Patients Treated with Neutron Therapy Using U-120 Cyclotron." Medical Radiology and radiation safety 63, no. 2 (2018): 47–54. http://dx.doi.org/10.12737/article_5ac620f416a449.50054749.

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Purpose: To study dosimetric characteristics of neutron radiation field, to determine their role in the formation of the total cytogenetic effect in the patient’s body and to assess the cytogenetic dosimetry capabilities in improving the quality of NT. Material and methods: A therapeutic beam with the average neutron energy of ~6.3 MeV was obtained from the V-120 cyclotron. The radiation field of the beam was investigated with the help of two ionization chambers with different sensitivity to neutrons. Chamber with high and low sensitivities were made of polyethylene and graphite, respectively.

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10

Zivanovic, Milos, Djordje Lazarevic, Olivera Ciraj-Bjelac, Srboljub Stankovic, Sandra Ceklic, and Katarina Karadzic. "Intercomparisons as an important element of quality assurance in metrology of ionising radiation." Nuclear Technology and Radiation Protection 30, no. 3 (2015): 225–31. http://dx.doi.org/10.2298/ntrp1503225z.

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Intercomparisons are important activities performed to ensure that the services provided by calibration laboratories to end-users follow internationally accepted standards. Ionizing radiation dosimetry intercomparisons are usually of two types - postal thermoluminescent dosimeter intercomparisons and ionization chamber calibration intercomparisons. In this paper, both types of intercomparisons are analysed together with the results of seven years of participation in such intercomparisons. Several discrepancies were discovered as a result of intercomparisons analysis and the resolution of the d

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11

Isa Khan, Muhammad, Muhammad Bilal Tahir, Muhammad Rafique, et al. "Commissioning and evaluation of a radiochromic EBT3 film dosimetry system." Journal of Radiotherapy in Practice 18, no. 1 (2018): 55–62. http://dx.doi.org/10.1017/s1460396918000444.

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AbstractPurposeThis work reports our study to commission a radiochromic film dosimetry system using the timely EBT3 film. We carried out dosimetric evaluations on different characteristics of photon beams (e.g., flatness, symmetry and penumbra) in radiation dose delivery.Materials and MethodsA Varian linear accelerator producing 6 and 15 MV photon beams with 120 multi-leaf collimator was used in this study. PTW ionisation chamber was used to measure the beam characteristics such as symmetry, flatness and penumbra and these measurements were used to commission the radiochormic EBT3 film dosimet

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Amer, Hany, Mostafa Elashmawy, Huda Alazab, and El-Din Ezz. "Suitability of pure nano crystalline LiF as a TLD dosimeter for high dose gamma radiation." Nuclear Technology and Radiation Protection 33, no. 1 (2018): 93–99. http://dx.doi.org/10.2298/ntrp1801093a.

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LiF is an alkali halide that is commonly used in radiation dosimetry utilizing its well-known thermoluminescence property. Pure LiF has very limited use in radiation dosimetry since the density and types of the internal traps are limited. For that reason, LiF is usually doped with different elements such as Mg and Ti in (TLD-100) to enhance its thermoluminescence properties and to be suitable for dosimetry applications. In this work we used ball milling as an alternative to dopants (impurities) to induce structure defects (e.g. dislocation) that will play the major role in thermoluminescence p

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13

Williams, Grant V. M., Sebastiampillai G. Raymond, Nick Denton, and Christn Gaedtke. "Development and Characterization of a Portable Fibre Optic Dosimeter." Materials Science Forum 700 (September 2011): 174–77. http://dx.doi.org/10.4028/www.scientific.net/msf.700.174.

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A portable fibre optic dosimeter has been developed that uses transparent fluroperovskite dosimeters at the end of a multimode polymer fibre. It uses two stimulation sources that take advantage of the bimodal trap distribution so that the dose rate and cumulative dose can be monitored. Photoluminescence (PL), optically stimulated luminescence (OSL) and radioluminescence (RL) measurements were made on nearly tissue equivalent NaMgF3:Eu2+, NaMgF3:Mn2+, and high sensitivity RbMgF3:Eu2+ and CsCdF3:Mn2+. Initial dose rate and dose measurements were made using our fibre dosimeter during and after ex

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14

Adolfsson, E., P. Wesolowska, J. Izewska, E. Lund, M. Olsson, and A. Carlsson Tedgren. "EP-1933: End-to-end dosimetric audit - comparison of TLD and lithium formate EPR dosimetry." Radiotherapy and Oncology 119 (April 2016): S917. http://dx.doi.org/10.1016/s0167-8140(16)33184-x.

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15

Carlino, A., H. Palmans, G. Kragl, et al. "PO-0806: Dosimetric end-to-end test procedures using alanine dosimetry in scanned proton beam therapy." Radiotherapy and Oncology 123 (May 2017): S430. http://dx.doi.org/10.1016/s0167-8140(17)31243-4.

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16

Kreutzer, Sebastian, Loïc Martin, Guillaume Guérin, Chantal Tribolo, Pierre Selva та Norbert Mercier. "Environmental dose rate determination using a passive dosimeter: Techniques and workflow for α-Al2O3:C chips". Geochronometria 45, № 1 (2018): 56–67. http://dx.doi.org/10.1515/geochr-2015-0086.

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Abstract In situ dosimetry (active, passive dosimeters) provides high accuracy by determining environmental dose rates directly in the field. Passive dosimeters, such as α-Al2O3:C, are of particular interest for sites with desired minimum disturbance (e.g., archaeological sites). Here, we present a comprehensive approach obtaining the environmental cosmic and γ-dose rate using α-Al2O3:C chips. Our procedure consists of (1) homemade field containers, (2) a homemade bleaching box, (3) a rapid measurement sequence and (4) software based on R to process the measurement results. Our validation step

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17

Ibbott, G. "MO-B-BRB-04: 3D Dosimetry in End-To-End Dosimetry QA." Medical Physics 43, no. 6Part29 (2016): 3695. http://dx.doi.org/10.1118/1.4957186.

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18

Baldock, Clive, Christian P. Karger, and Habib Zaidi. "Gel dosimetry provides the optimal end‐to‐end quality assurance dosimetry for MR‐linacs." Medical Physics 47, no. 8 (2020): 3259–62. http://dx.doi.org/10.1002/mp.14239.

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19

Hilts, M., J. Carrick, H. Johnston, and A. Jirasek. "SU-E-T-93: A CT Polymer Gel Dosimetry System for End-To-End Dosimetry." Medical Physics 38, no. 6Part11 (2011): 3507. http://dx.doi.org/10.1118/1.3612044.

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20

Bassi, Sarah, Leanne Berrigan, Anysja Zuchora, Louise Fahy, and Margaret Moore. "‘End to end’ dosimetry audit for HDR brachytherapy." Physica Medica 84 (April 2021): 291. http://dx.doi.org/10.1016/j.ejmp.2021.01.017.

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21

D’Avino, Vittoria, Leopoldo Angrisani, Giuseppe La Verde, et al. "New Eye Lens Dose Limit: Status of Knowledge in Campania Hospitals." International Journal of Environmental Research and Public Health 16, no. 18 (2019): 3450. http://dx.doi.org/10.3390/ijerph16183450.

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The International Commission on Radiation Protection (ICRP) in 2011 recommended the lowering of the annual eye lens dose limit from 150 mSv/year to 20 mSv/year in order to reduce the risk of X-ray-induced lens opacity in medical staff. The purpose of this study was to assess the status of knowledge of the new eye lens dose limit and of the radioprotection culture among operators. To this end, a questionnaire was administered to physicians, X-ray technicians, and nurses working in five hospitals of the Campania region, Italy. A total of 64 questionnaires were collected in the hospital departmen

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22

Regulla, D. F., H. Y. Göksu, A. Vogenauer, and A. Wieser. "Retrospective dosimetry based on egg shells." Applied Radiation and Isotopes 45, no. 3 (1994): 371–73. http://dx.doi.org/10.1016/0969-8043(94)90052-3.

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23

Madruga, Maria Regina, Carlos Alberto de Pereira, and M. Nazareth Rabello-Gay. "Bayesian dosimetry: Radiation dose versus frequencies of cells with aberrations." Environmetrics 5, no. 1 (1994): 47–56. http://dx.doi.org/10.1002/env.3170050105.

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24

Tokhy, Hatem Hussny, Elsayed K. Elmaghraby, AbdelWahab M. Abdelhady, et al. "The influence of gamma radiation on organic compounds having carbon ring and its application in dosimetry." Radiochimica Acta 109, no. 5 (2021): 407–18. http://dx.doi.org/10.1515/ract-2020-0024.

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Abstract The formation of highly oxidizing radicals in multifunctional-solid compounds upon irradiation with gamma-ray had been investigated. Five organic compounds having a single carbon ring had been used in the present investigation; these materials are 1-chloro-4-nitrobenzene, 4′-aminoacetophenone, 3′-hydroxyacetophenone, n-anthranilic acid, and triphenylmethane. These material were irradiated using 60Co radiation with different doses between 20 and 100 kGy. Electron spin resonance spectroscopy spotted increases of the resonance absorption having landé factor around 2.0113 ± 0.003 upon irr

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25

Saenz, D., K. Rasmussen, E. Pappas, et al. "QA for SBRT of Spine Lesions: Introducing a Novel 3D Gel Dosimeter for Spatial and Dosimetric End-to-End Testing." International Journal of Radiation Oncology*Biology*Physics 102, no. 3 (2018): e517. http://dx.doi.org/10.1016/j.ijrobp.2018.07.1459.

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Pappas, E., D. Makris, E. Zoros, et al. "Personalized End-to-End QA in Cranial SRS: Evaluation of the Phantom-to-Patient Dosimetric Equivalency of a 3D Printed Phantom using Film Dosimetry." International Journal of Radiation Oncology*Biology*Physics 102, no. 3 (2018): e485-e486. http://dx.doi.org/10.1016/j.ijrobp.2018.07.1384.

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27

Shaw, M., A. Alves, C. Davey, et al. "EP-2116 End-to-end dosimetry audits of Stereotactic Ablative Radiotherapy." Radiotherapy and Oncology 133 (April 2019): S1171—S1172. http://dx.doi.org/10.1016/s0167-8140(19)32536-8.

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28

Carlino, A., C. Gouldstone, G. Kragl, et al. "End-to-end tests using alanine dosimetry in scanned proton beams." Physics in Medicine & Biology 63, no. 5 (2018): 055001. http://dx.doi.org/10.1088/1361-6560/aaac23.

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29

Breustedt, B., E. Blanchardon, C.-M. Castellani, et al. "EURADOS work on internal dosimetry." Annals of the ICRP 47, no. 3-4 (2018): 75–82. http://dx.doi.org/10.1177/0146645318756232.

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European Radiation Dosimetry Group (EURADOS) Working Group 7 is a network on internal dosimetry that brings together researchers from more than 60 institutions in 21 countries. The work of the group is organised into task groups that focus on different aspects, such as development and implementation of biokinetic models (e.g. for diethylenetriamine penta-acetic acid decorporation therapy), individual monitoring and the dose assessment process, Monte Carlo simulations for internal dosimetry, uncertainties in internal dosimetry, and internal microdosimetry. Several intercomparison exercises and

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Behinaein, Sepideh, Ernest Osei, Johnson Darko, Paule Charland, and Dylan Bassi. "Evaluating small field dosimetry with the Acuros XB (AXB) and analytical anisotropic algorithm (AAA) dose calculation algorithms in the eclipse treatment planning system." Journal of Radiotherapy in Practice 18, no. 4 (2019): 353–64. http://dx.doi.org/10.1017/s1460396919000104.

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AbstractBackground:An increasing number of external beam treatment modalities including intensity modulated radiation therapy, volumetric modulated arc therapy (VMAT) and stereotactic radiosurgery uses very small fields for treatment planning and delivery. However, there are major challenges in small photon field dosimetry, due to the partial occlusion of the direct photon beam source’s view from the measurement point, lack of lateral charged particle equilibrium, steep dose-rate gradient and volume averaging effect of the detector response and variation of the energy fluence in the lateral di

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Marrale, Maurizio, and Francesco d’Errico. "Hydrogels for Three-Dimensional Ionizing-Radiation Dosimetry." Gels 7, no. 2 (2021): 74. http://dx.doi.org/10.3390/gels7020074.

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Radiation-sensitive gels are among the most recent and promising developments for radiation therapy (RT) dosimetry. RT dosimetry has the twofold goal of ensuring the quality of the treatment and the radiation protection of the patient. Benchmark dosimetry for acceptance testing and commissioning of RT systems is still based on ionization chambers. However, even the smallest chambers cannot resolve the steep dose gradients of up to 30–50% per mm generated with the most advanced techniques. While a multitude of systems based, e.g., on luminescence, silicon diodes and radiochromic materials have

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Fox, David R. "A simple protocol for radiation dosimetry based on the order statistics from a poisson process." Environmetrics 3, no. 3 (1992): 301–18. http://dx.doi.org/10.1002/env.3170030304.

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33

Shin, Richard H., Fernando J. Cabrera, Giao Nguyen, et al. "Radiation Dosimetry for Ureteroscopy Patients: A Phantom Study Comparing the Standard and Obese Patient Models." Journal of Endourology 30, no. 1 (2016): 57–62. http://dx.doi.org/10.1089/end.2015.0419.

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Dimitriadis, A., R. A. S. Thomas, A. L. Palmer, et al. "OC-0540: A national cranial stereotactic radiosurgery end-to-end dosimetry audit." Radiotherapy and Oncology 123 (May 2017): S287. http://dx.doi.org/10.1016/s0167-8140(17)30980-5.

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35

Palmer, Antony L., Patricia Diez, Laura Gandon, et al. "A multicentre ‘end to end’ dosimetry audit for cervix HDR brachytherapy treatment." Radiotherapy and Oncology 114, no. 2 (2015): 264–71. http://dx.doi.org/10.1016/j.radonc.2014.12.006.

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Haworth, Annette, Lisa Wilfert, Duncan Butler, et al. "Australasian brachytherapy audit: Results of the ‘end-to-end’ dosimetry pilot study." Journal of Medical Imaging and Radiation Oncology 57, no. 4 (2013): 490–98. http://dx.doi.org/10.1111/1754-9485.12042.

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Horsburgh, Ben A., and Mike Higgins. "A Study of Occupational Radiation Dosimetry During Fluoroscopically Guided Simulated Urological Surgery in the Lithotomy Position." Journal of Endourology 30, no. 12 (2016): 1312–20. http://dx.doi.org/10.1089/end.2016.0596.

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Dorato, Michael A., and Ronald K. Wolff. "Inhalation Exposure Technology, Dosimetry, and Regulatory Issues." Toxicologic Pathology 19, no. 4_part_1 (1991): 373–83. http://dx.doi.org/10.1177/0192623391019004-106.

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Inhalation toxicology technology has provided the scientific community with important advances in studies of inhaled toxicants. These advances include new and more efficient exposure systems (e.g., flow-past nose-only exposure systems), and improved approaches to inhalation chamber environmental control (e.g., temperature, humidity, air quality). Practical problems and approaches to testing and operating inhalation exposure systems and the advantages and disadvantages of the major inhalation exposure types (e.g., whole-body, nose-only) are discussed. Important aspects of study design, such as

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Wu, Yu-Hsiang, and Ruth A. Bentler. "Do Older Adults Have Social Lifestyles That Place Fewer Demands on Hearing?" Journal of the American Academy of Audiology 23, no. 09 (2012): 697–711. http://dx.doi.org/10.3766/jaaa.23.9.4.

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Background: Listening demand, or auditory lifestyle, is an important factor that needs to be considered when selecting a hearing aid and specific amplification features. Although elderly adults often report having fewer listening demands, auditory lifestyles of people in different age groups have not been objectively quantified and compared. Although it is assumed that the social lifestyles of older adults, e.g., retirement, place fewer demands on hearing, this assumption has not been examined empirically. Purpose: The purposes of the current study were to (1) objectively characterize and comp

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C.D. Tibambre-Heredia, H. Olaya-Dávila, A.C. Sevilla, et al. "Radon Progeny Recoil Effect in Retrospective Indoor Glass Dosimetry." Journal of Nuclear Physics, Material Sciences, Radiation and Applications 7, no. 1 (2020): 35–41. http://dx.doi.org/10.15415/jnp.2019.71004.

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Radon gas diffusion and progeny transport in air, are mechanisms to be considered in retrospective glass dosimetry. With the aim to contribute to the understanding of the Rn progeny recoil energy role in this dosimetry methodology, we carried out a simulation employing GEANT4 code. In that, we assumed the chemical compound of the glass that is used commonly in households. Results are compared to experimentally measured 210Bi concentration to show that the recoil energy helps the progenies incrustation, mainly for the 218,214Po alpha emitters but do not influence bismuth-210 diffusion directly.

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Shahin, Ali, Wesam Bachir, and Moustafa Sayem El-Daher. "Optical characterization of tissue-simulating phantom components at 405nm." Photonics Letters of Poland 11, no. 4 (2019): 106. http://dx.doi.org/10.4302/plp.v11i4.948.

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Optical properties of India ink (1950375, Parker, Quink, England) and 1-µm polystyrene microsphere (07310-15, Polysciences, USA) have been predicted at 405nm. For this purpose, a single integrating sphere system and spectrophotometric transmission spectroscopy have been used to estimate the radiometric characteristics. Radiometric measurements utilized to retrieve optical coefficients based on two different methods. Extinction coefficient has been estimated using collimated transmittance. To reconstruct absorption and scattering coefficients, total transmittance, diffuse reflectance and transm

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Wu, Yu-Hsiang, Elizabeth Stangl, Xuyang Zhang, and Ruth A. Bentler. "Construct Validity of the Ecological Momentary Assessment in Audiology Research." Journal of the American Academy of Audiology 26, no. 10 (2015): 872–84. http://dx.doi.org/10.3766/jaaa.15034.

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Background: Ecological momentary assessment (EMA) is a methodology involving repeated assessments/surveys to collect data describing respondents’ current or very recent experiences and related contexts in their natural environments. The use of EMA in audiology research is growing. Purpose: This study examined the construct validity (i.e., the degree to which a measurement reflects what it is intended to measure) of EMA in terms of measuring speech understanding and related listening context. Experiment 1 investigated the extent to which individuals can accurately report their speech recognitio

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Gossman, Michael S., and Erik J. L. Courter. "Stereotactic radiosurgery delivery verification using tetrazolium salt-based gel as a dosimeter." Canadian Journal of Physics 95, no. 8 (2017): 725–30. http://dx.doi.org/10.1139/cjp-2017-0067.

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The recently made available ClearView® tetrazolium salt-based gel dosimeter, encapsulated in a vial, was tested to determine feasibility in use as an end-to-end dosimeter for stereotactic radiosurgery commissioning and quality assurance. A fabricated adaptor enabled direct attachment of the gel vial lid to a rod extension. The rod was inserted into a water-filled head phantom at the open neck location and locked into position. Once quality assurance testing of the linear accelerator was completed, a stereotactic plan was deployed. Optical scanning software enabled a direct comparison of the me

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Holdman, Y. I., and E. V. Titovich. "HUMAN BODY ANTHROPOMORPHIC PHANTOM UTILISATION FOR THE COMPLEX TESTING OF RADIATION THERAPY TECHNOLOGICAL PROCESS." Doklady BGUIR, no. 7-8 (December 29, 2019): 133–40. http://dx.doi.org/10.35596/1729-7648-2019-126-8-133-140.

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The rapid development of technologies in the field of radiation therapy allows us nowadays to implement precision and most clinically effective radiotherapy techniques for oncological patient’s treatment to minimize the irradiation of normal tissues and improve local tumor control. An important condition for the implementation of the justification principle is strict compliance with the requirements for the accuracy of the dose delivered. High standards of radiation treatments performed are guaranteed by the development and strict compliance with the quality assurance (QA) program in the radio

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Jones, S. C., J. A. Sweet, P. Braunlich, J. M. Hoffman, and J. E. Hegland. "A Remote Fibre Optic Laser TLD System." Radiation Protection Dosimetry 47, no. 1-4 (1993): 525–28. http://dx.doi.org/10.1093/oxfordjournals.rpd.a081800.

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Abstract A fibre optic laser heated TLD system has been developed for use in remote in vivo, in situ dosimetry. A high power, near infrared CW semiconductor laser is used to heat TL elements at the distal end of standard optical fibres. Lengths of up to 200 m are feasible, with overall diameter as small as 1 mm. The system is multiplexed, with current capability of evaluating up to five dosemeter probes in under 30 s. with extension to larger numbers a trivial matter. The system is inherently immune to electromagnetic interference. The small mass of the TLD element ("100 µg) provides for highl

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Dupont, E., M. Bossant, R. Capote, et al. "HPRL – International cooperation to identify and monitor priority nuclear data needs for nuclear applications." EPJ Web of Conferences 239 (2020): 15005. http://dx.doi.org/10.1051/epjconf/202023915005.

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The OECD-NEA High Priority Request List (HPRL) is a point of reference to guide and stimulate the improvement of nuclear data for nuclear energy and other applications, and a tool to bridge the gap between data users and producers. The HPRL is application-driven and the requests are submitted by nuclear data users or representatives of the user’s communities. A panel of international experts reviews and monitors the requests in the framework of an Expert Group mandated by the NEA Nuclear Science Committee Working Party on International Nuclear Data Evaluation Cooperation (WPEC). After approval

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Shahin, Ali, Moustafa Sayem El-Daher, and Wesam Bachir. "Determination of the optical properties of Intralipid 20% over a broadband spectrum." Photonics Letters of Poland 10, no. 4 (2018): 124. http://dx.doi.org/10.4302/plp.v10i4.843.

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The aim of this study is to characterize the optical properties of Intralipid20% using two methods modified Kubelka-Munk model and Mie theory and to test the applicability of a modified Kubelka-Munk model with a single integrating sphere system over a wide wavelength range 470 – 725nm. Scattering coefficients which estimated by these two methods were matched and the absorption effect was observed and quantified. Finally, the imaginary part of the refractive index was estimated besides scattering, absorption and anisotropy coefficients. Full Text: PDF ReferencesB.W. Pogue, and M.S. Patterson, "

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Lye, J., M. Shaw, A. Alves, et al. "OC-016: Results from ACDS end-to-end dosimetry audit of spine and lung SBRT." Radiotherapy and Oncology 141 (December 2019): S5—S6. http://dx.doi.org/10.1016/s0167-8140(20)30422-9.

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Patyal, Baldev. "Dosimetry Aspects of Proton Therapy." Technology in Cancer Research & Treatment 6, no. 4_suppl (2007): 17–23. http://dx.doi.org/10.1177/15330346070060s403.

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High-energy photons and high-energy protons are very different in the ways they interact with matter. These differences lead to distinct advantages of protons over photons for treatment of cancer. Some aspects of proton interactions with tissue that make this modality superior for treating cancer are: (i) Initially, the protons lose energy very slowly as they enter the body; this results in a low entrance dose and low doses to the normal tissues proximal to the tumor. (ii) Near the end of range, protons lose energy very rapidly and deposit all their energy over a very small volume before they

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d’Abadie, Philippe, Michel Hesse, Amandine Louppe, Renaud Lhommel, Stephan Walrand, and Francois Jamar. "Microspheres Used in Liver Radioembolization: From Conception to Clinical Effects." Molecules 26, no. 13 (2021): 3966. http://dx.doi.org/10.3390/molecules26133966.

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Inert microspheres, labeled with several radionuclides, have been developed during the last two decades for the intra-arterial treatment of liver tumors, generally called Selective Intrahepatic radiotherapy (SIRT). The aim is to embolize microspheres into the hepatic capillaries, accessible through the hepatic artery, to deliver high levels of local radiation to primary (such as hepatocarcinoma, HCC) or secondary (metastases from several primary cancers, e.g., colorectal, melanoma, neuro-endocrine tumors) liver tumors. Several types of microspheres were designed as medical devices, using diffe

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