Gotowe bibliografie tematyczne / Energy of 6 MV and 18 MV

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  1. Artykuły w czasopismach
  2. Rozprawy doktorskie
  3. Części książek
  4. Streszczenia konferencji

Gotowa bibliografia na temat „Energy of 6 MV and 18 MV”

Autor: Grafiati
Data publikacji: 3 czerwca 2025
Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Energy of 6 MV and 18 MV"

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Sharma, Anil K., Sanjay S. Supe, and K. Subbarangaiah. "Physical Characteristics Of 6 MV And 18 MV Photons From A Dual Energy Linear Accelerator." Journal of Medical Physics 18, no. 2 (1993): 1. http://dx.doi.org/10.4103/0971-6203.50095.

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Bencheikh, Mohamed, Abdelmajid Maghnouj, and Jaouad Tajmouati. "Percentage depth dose fragmentation for investigating and assessing the photon beam dosimetry quality." Journal of Radiotherapy in Practice 18, no. 03 (2018): 280–84. http://dx.doi.org/10.1017/s1460396918000687.

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AbstractAimThe purpose of this study is to introduce a new approach to assess the dosimetry quality of photon beam with energy and irradiation field size. This approach is based on percentage depth dose (PDD) fragmentation for investigating the dosimetry quality.Materials and methodsFor the investigation of the dosimetry quality of 6 and 18 MV photon beams, we have proceeded to fragment the PDD at different field sizes. This approach checks the overall PDD and is not restricted to the exponential decay regions, as per the International Atomic Energy Agency Technical Reports Series No 398 and t
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Ould, Mohamed Yeslem Ahmed El Mouna, Cheibetta Moussa Ould, Abdelmajid Choukri, Jilali Ghassoun, Oum Keltoum Hakam, and Slimane Semghouli. "Preliminary Results of Quality Control for Linear Accelerator at Oncology Center in Nouakchott." British Journal of Medicine & Medical Research 22, no. 2 (2017): 1–8. https://doi.org/10.9734/BJMMR/2017/33918.

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The National Center of Oncology in Nouakchott is equipped with a linear accelerator which provides two energies in photon regime 6 MV and 18 MV. The basic dosimetric data required for quality of operation, in the clinical routine of the accelerator for photon beams are percentage depth dose (PDD) curves and beam profile (BP) curves. The aim of this work is to measure the percentage depth dose (PDD) and beam/dose profile (BP) for 6 MV and 18 MV photon beams for different field sizes and for different Skin-Source-Distance (SSD), and to compare the measured results with the results calculated by
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Weiss, Elisabeth, Jeffrey V. Siebers, and Paul J. Keall. "An analysis of 6-MV versus 18-MV photon energy plans for intensity-modulated radiation therapy (IMRT) of lung cancer." Radiotherapy and Oncology 82, no. 1 (2007): 55–62. http://dx.doi.org/10.1016/j.radonc.2006.10.021.

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Edwards, C. R., and P. J. Mountford. "Near surface photon energy spectra outside a 6 MV field edge." Physics in Medicine and Biology 49, no. 18 (2004): N293—N301. http://dx.doi.org/10.1088/0031-9155/49/18/n01.

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Frentzel, Katharina, and Harun Badakhshi. "Irradiation with x-rays of the energy 18 MV induces radioactivity in transfusion blood: Proposal of a safe method using 6 MV." Medical Physics 43, no. 12 (2016): 6517–24. http://dx.doi.org/10.1118/1.4967482.

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Alvionita, Vinny, and Dian Milvita. "Analisis Hasil Pengukuran Tissue Maximum Ratio (TMR) terhadap Variasi Kedalaman Target dan Luas Lapangan Penyinaran Menggunakan Pesawat LINAC Tipe Clinac-CX." Jurnal Fisika Unand 7, no. 2 (2018): 97–101. http://dx.doi.org/10.25077/jfu.7.2.97-101.2018.

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Telah dilakukan penelitian untuk mengetahui pengaruh variasi kedalaman target dan luas lapangan penyinaran terhadap penerimaan dosis radiasi pada fantom menggunakan pesawat terapi Linear Accelerator (LINAC) tipe Clinac CX. Penelitian dilakukan dengan variasi kedalaman (0-30) cm dengan interval 1 cm dan 18 variasi luas lapangan penyinaran dimulai dari (5x5) cm2 hingga (39x39) cm2 dengan interval 2 cm. Variasi kedalaman dan luas lapangan dilakukan untuk mendapatkan nilai Tissue Maximum Ratio (TMR). TMR merupakan rasio dosis radiasi di kedalaman tertentu terhadap dosis radiasi di kedalaman maksim
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Tahberer, Emre, Mehmet Adigul, Ahmet Ergin Capar, Ahmet Cinkaya, Yasin Coban, and Serdar Surenkok. "Comparison of the effects of two different dose algorithms in cardiac dose parameters for hodgkin lymphoma patients receiving mediastinal radiotheraphy." Medical Science and Discovery 3, no. 8 (2016): 301–4. https://doi.org/10.36472/msd.v3i8.163.

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Objective: This study aimed to compare pencil beam (PB) and convolution superposition (CS) dose calculation algorithms with respect to cardiac dose-volume parameters V5, V25, V30 and MHD (median heart dose) in Hodgkin lymphoma (HL) patients who received mediastinal radiotherapy (RT). Material and Methods: Ten eligible cases with the diagnosis of HL who completed mediastinal RT at Dokuz Eylül University Department of Radiation Oncology before 01.01.2011 formed the study population. Related 3D conformal RT treatment plans were obtained from the Treatment Planning System (TPS) (Nucletron Oncentra
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Li, Xiao-Jun, Yan-Cheng Ye, Yan-Shan Zhang, and Jia-Ming Wu. "Empirical modeling of the percent depth dose for megavoltage photon beams." PLOS ONE 17, no. 1 (2022): e0261042. http://dx.doi.org/10.1371/journal.pone.0261042.

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Introduction This study presents an empirical method to model the high-energy photon beam percent depth dose (PDD) curve by using the home-generated buildup function and tail function (buildup-tail function) in radiation therapy. The modeling parameters n and μ of buildup-tail function can be used to characterize the Collimator Scatter Factor (Sc) either in a square field or in the different individual upper jaw and lower jaw setting separately for individual monitor unit check. Methods and materials The PDD curves for four high-energy photon beams were modeled by the buildup and tail function
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Azraai, Meor, Daisuke Miura, Yuan-Hong Lin, Thalys Sampaio Rodrigues, and Voltaire Nadurata. "Incidence and Predictors of Cardiac Implantable Electronic Devices Malfunction with Radiotherapy Treatment." Journal of Clinical Medicine 11, no. 21 (2022): 6329. http://dx.doi.org/10.3390/jcm11216329.

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Aims: To investigate the incidence of cardiac implantable electronic devices (CIED) malfunction with radiotherapy (RT) treatment and assess predictors of CIED malfunction. Methods: A 6-year retrospective analysis of patients who underwent RT with CIED identified through the radiation oncology electronic database. Clinical, RT (cumulative dose, dose per fraction, beam energy, beam energy dose, and anatomical area of RT) and CIED details (type, manufacturer, and device malfunction) were collected from electronic medical records. Results: We identified 441 patients with CIED who underwent RT. CIE
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Rozprawy doktorskie na temat "Energy of 6 MV and 18 MV"

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Abdel-Rahman, Wamied. "Scatter factors and peak scatter factors for cobalt-60, 6 MV, 10 MV, and 18 MV photon beams." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ64311.pdf.

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Chung, Eunah. "Comparison of measured and Monte Carlo-calculated peak scatter factors for 10X10 cm2 field size in 6 MV and 18 MV photon beams." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32261.

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The purpose of this thesis is to measure the peak scatter factors (PSFs) for a 10X10 cm2 field size in 6 MV and 18 MV photon beams using a Solid WaterTM phantom and build-up caps made of LuciteTM, aluminum, brass, and copper. The PSF for the 10X10 cm2 field size was first determined by extrapolating the measured normalized peak scatter factor (NPSF) to 0X0 cm2 field size. The extrapolated NPSF was the reciprocal of the PSF(10, hv). The measured PSF(10, hv) was then compared to the PSF determined with Monte C
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Frentzel, Katharina [Verfasser]. "Die Bedeutung des Unterschiedes zwischen den angewandten Photonenenergien 6 MV und 18 MV bei der Bestrahlung von Blut am Linearbeschleuniger : Entwicklung einer klinisch praktikablen Lösung / Katharina Frentzel." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2017. http://d-nb.info/1133074391/34.

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Kildea, John. "An evaluation of NCRP Report No. 151 - radiation shielding design for radiotherapy facilities, and a feasibility study for 6 MV open-door treatments in an existing high-energy radiation therapy bunker." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:8881/R/?func=dbin-jump-full&object_id=92271.

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Τσιαμάς, Παναγιώτης. "Out of field spectra determination of Electa’s SL-18 Linac with MLC, for 6 and 15 MV, with Monte Carlo simulation." Thesis, 2008. http://nemertes.lis.upatras.gr/jspui/handle/10889/1317.

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Σκοπός της παρούσας εργασίας είναι η μελέτη με την βοήθεια της τεχνικής Monte Carlo των φασμάτων εκτός πεδίου του γραμμικού επιταχυντή SL- 18 της ELEKTA. Η μελέτη έδειξε συσχέτιση μεταξύ δόσης και απόστασης από των άξονα της δέσμης.<br>The aim of this study was to investigate the energy spectrum outside the field limits of therapeutic high energy photon beams. Monte Carlo simulations were used in order to determine the dose and to confirm or to try to re-estimate the Energy correction factors used in off-field in-vivo dosimetry. The ELEKTA-SL18 medical accelerator was simulated for 6MV an
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Kureba, Chamunorwa Oscar. "Energy calibration of the 6 MV EN Tandem accelerator of iThemba labs (Gauteng) and measurement of 16O + 16O elastic scattering." Thesis, 2011. http://hdl.handle.net/10539/9247.

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The beam energy stability and reproducibility of the newly refurbished 6 MV EN tandem accelerator of iThemba LABS (Gauteng) (formerly the Schonland Research Institute) has been investigated, followed by an angular distribution measurement of 16O + 16O elastic scattering at ELab = 30 MeV. The 90˚ beam momentum-analysing magnet system was calibrated using two methods. In one method, the 27Al(p,n)27Si reaction was used to determine the proton beam energy from the known neutron emission sharp-threshold of 5.802 ± 0.001 MeV protons. In the other method, the energy of alpha-particles measured at a l
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Części książek na temat "Energy of 6 MV and 18 MV"

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Chibani, Omar, Belal Moftah, and Charlie Ma. "Updated Beam Parameters for Monte Carlo Simulation of Five Varian Megavoltage Photon Beams (4, 6, 10, 15 and 18 MV)." In IFMBE Proceedings. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03474-9_300.

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"Investigation of the effect of different silver concentrations on dose distribution in radiotherapy: A Monte Carlo Study." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.19.8.

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Purpose: Silver nanoparticles (AgNPs) have been intensively investigated in recent years to increase the sensitivity of tumour cells in radiotherapy. These nanoparticles may potentiate therapeutic efficacy by increasing sensitivity to radiation, especially in cancer cells. In this study, the effect of different concentrations of AgNPs in the radiotherapy beam field on the percentage depth dose (PDD) was investigated using Geant4-based GATE Monte Carlo (MC) modelling technique. Material and Methods: Values were obtained using spectrum photon energies of 6 and 18 MV in the GATE simulation progra
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Zhai, Yanan, and Shuo Lu. "Study on Structure and Properties of CrAlN Film Deposited by Plasma Enhanced Magnetron Sputtering." In Advances in Transdisciplinary Engineering. IOS Press, 2024. http://dx.doi.org/10.3233/atde240623.

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CrAlN film was deposited via plasma enhanced magnetron sputtering (PEMS) by sputtering Al-Cr alloy target. The microstructure of CrAlN film was observe using scanning electron microscope and high resolution transmission electron microscopy, meanwhile, the chemical composition was analyzed through energy dispersive spectrometer and the thickness was measured. The phase structure was characterized by X-ray diffractometer. The mechanical properties, corrosion resistance performance, friction and wear property were evaluated through Micro-Nano Indentation Tester, Revetest Scratch Tester, electroch
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"Investigating total ionizing dose effects on LVDS receivers with impedance spectroscopy." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.34.1.

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Low-Voltage Differential Signaling (LVDS) receivers are widely used in high-speed serial links in several environments with radiation, including nuclear and high-energy physics experiments, spacecraft and satellites, and medical physics. In this work, we studied Total Ionizing Dose (TID) effects induced by 60Co gamma rays on LVDS receivers (part number DS90LV048A, from Texas Instruments) exposed to a high dose of 15.4 kGy at a dose rate of 364 Gy/h. TID tests have been performed at the CERN CC60 facility, that hosts a ~ 3 TBq 60Co radioactive source. Radiation effects were studied using both c
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Streszczenia konferencji na temat "Energy of 6 MV and 18 MV"

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de Romero, Matilde F., Junire Parra, Rosemary Ruiz, et al. "Cathodic Polarization Effect on Sessile SRB Growth and Iron Protection." In CORROSION 2006. NACE International, 2006. https://doi.org/10.5006/c2006-06526.

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Abstract Cathodic polarization of a metallic surface in contact with sulfate-reducing bacteria (SRB) has been reported as a technique for corrosion control when the potential reaches values above -950 mV vs CSE1; nevertheless, it has been determined that in populations where this type of bacteria prevails the problem of microbiologically influenced corrosion (MIC) is not controlled adequately2. The objective of this study was to evaluate the severity of the attack of a pure SRB strain on a cathodically polarized iron surface using diverse electrochemical techniques and attack morphology. To do
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Hernández Bojórquez, M., A. Martínez-Dávalos, M. Rodríguez-Villafuerte, J. M. Lárraga, A. García, and M. A. Celis. "Characterization of the Photon Energy Spectrum of a 6 MV Linac." In MEDICAL PHYSICS: Ninth Mexican Symposium on Medical Physics. AIP, 2006. http://dx.doi.org/10.1063/1.2356457.

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Castillo, R. "Estimate of Photoneutrons Generated by 6-18 MV X-Ray Beams for Radiotherapy Techniques." In 10th Latin American Symposium on Nuclear Physics and Applications. Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.194.0067.

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Shakoor, Abdul, Kengo Nozaki, Eiichi Kuramochi, Katsuhiko Nishiguchi, Akihiko Shinya, and Masaya Notomi. "Ultra-Low Energy 1D Silicon Photonic Crystal Electro-Optic Modulator with Sub-100- mV Switching Voltage." In Integrated Photonics Research, Silicon and Nanophotonics. OSA, 2014. http://dx.doi.org/10.1364/iprsn.2014.iw3a.6.

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Bendame, Mohamed, Eihab Abdel-Rahman, and Mostafa Soliman. "Test and Validation of a Nonlinear Electromagnetic Energy Harvester." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-35093.

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We investigate a new type of nonlinear vibration energy harvester that uses a double impact oscillator as its harvesting element. A prototype of the harvester is analyzed numerically and experimentally when aligned vertically. Results show that the new architecture enhanced the output power as well as the frequency bandwidth in comparison with linear harvesters. The new harvester is capable of generating up to 250 mV and has a harvesting bandwidth of about 6 Hz. The optimal load for 0.7 g input acceleration is found to be 5.5 Ω and the corresponding optimal power is determined to be 8 mWatts.
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Miyahara, Y., K. Ishikawa, and T. Kuroda. "A 400-mV Bluetooth Low-Energy Transmitter Using a Capacitor Switch across a Transformer for achieving a Wide Tuning Range Voltage-Controlled Oscillator." In 2016 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2016. http://dx.doi.org/10.7567/ssdm.2016.j-6-02.

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Chen, Xi, Shiyou Xu, and Yong Shi. "Electro-Mechanical Coupling of Piezoelectric Nanocomposites." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-29144.

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Energy harvesting technology that can increase the operation time and decrease the device size is urgently needed in wireless electronics, portable devices, and implantable biosensors. This paper reports the experimental study of electromechanical coupling of PZT (piezoelectric) nanofiber composites which have the potential to be used for energy harvesting. The recorded voltage output was about 6 mV in the experiments. In this paper, we will describe the fabrication of the piezoelectric nanocomposites and demonstrate the characteristics of electro-mechanical coupling using a dynamic mechanical
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Ivić, Dejan, Marinko Simišić, Ranka Kovačević, Predrag Mršić, and Željko Ivanović. "SMART GRID KONCEPT ZASNOVAN NA AUTOMATIZACIJI SREDNJENAPONSKE MREŽE." In 36. Savetovanja CIGRE Srbija 2023 Fleksibilnost elektroenergetskog sistema. Srpski nacionalni komitet Međunarodnog saveta za velike električne mreže CIGRE Srbija, 2023. http://dx.doi.org/10.46793/cigre36.2033i.

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Modern distribution networks are facing a series of challenges in terms of improving reliability parameters, utilization of existing capacities and integration of renewable energy sources, i.e. distributed generation. Consequently, the management of the distribution network, especially at the medium voltage level, gains additional importance. This paper describes the path from the idea to the realization of the medium voltage network automation and control system. The paper presents a brief description of the Smart Grid concept applied to the test case of the 6 kV Donja Ljubija distribution ov
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Colic, M. "Synergistic Application of Superhydrophilic Silanes Coating and Nanobubbles Turbulence to Mitigate Ceramic Nanofiltration Membrane Fouling." In SPE Water Lifecycle Management Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/219015-ms.

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Abstract Produced water and wastewater in the petroleum industry often have very high salinity. This incapacitates polymeric flocculants and flotation oil separation. Ceramic nanofiltration (NF) membranes seem like a natural solution for dispersed oils and macromolecules separations at high salinity and temperature. However, membrane fouling limits their application. We showed that by modifying wettability and surface charge and hydration of such membranes and promoting local turbulence one can mitigate membrane fouling. Based on our past work, we coated ceramic particles with nonionic silane
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Živković Radojević, Marija, Neda Milosavljević, Slađana Aćimović Talijan, Tatjana B. Miladinović, Aleksandar Miladinović, and Miloš Grujić. "Challenges in radiotherapy planning in patients with synchronous rectal and prostate cancer and hip prosthesis." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.209zr.

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Background. Prostate and rectal carcinomas, although among the most common malignancies in males, rarely exhibit synchronous diagnosis and treatment of both malignancies. This paper presents a case of a patient with synchronous prostate and rectal carcinoma and an artificial right hip, which complicates the creation of a radiotherapy plan. Case Report. A 76-year-old male was diagnosed with synchronous mucinous infiltrating adenocarcinoma of the rectum (T3N0M0) and adenocarcinoma of the prostate (T3aN0M0), confirmed by immunohistochemistry. He had a history of testicular carcinoma previously tr
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