A5063608586- Radiation Dose and Imaging
- Advanced X-ray and CT Imaging
- Advanced Radiotherapy Techniques
- Radiation Therapy and Dosimetry
- Advances in Oncology and Radiotherapy
- Radio Frequency Integrated Circuit Design
- Digital Radiography and Breast Imaging
- Microwave Engineering and Waveguides
- Radioactivity and Radon Measurements
- Radiology practices and education
- Radiation Detection and Scintillator Technologies
- Medical Imaging Techniques and Applications
- Electromagnetic Compatibility and Noise Suppression
- Radiation Shielding Materials Analysis
- Graphite, nuclear technology, radiation studies
- Nanoplatforms for cancer theranostics
- Nuclear Physics and Applications
- Boron Compounds in Chemistry
- Nuclear and radioactivity studies
- Full-Duplex Wireless Communications
- Effects of Radiation Exposure
- COVID-19 diagnosis using AI
- Parasitic infections in humans and animals
- Gastrointestinal disorders and treatments
- Mathematics, Computing, and Information Processing
Hamedan University of Medical Sciences
2018-2024
University of Minho
2019-2021
University of Birjand
2019-2020
Mashhad University of Medical Sciences
2020
Tarbiat Modares University
2009-2016
Institute of Atomic Energy
2015
McMaster University
2015
Atomic Energy Organization of Iran
2009-2014
Nuclear Science and Technology Research Institute
2010-2013
Tehran University of Medical Sciences
2009-2011
The article reports results from the largest international dose survey in paediatric computed tomography (CT) 32 countries and proposes diagnostic reference levels (DRLs) terms of index (CTDI vol) length product (DLP). It also assesses whether mean or median values individual facilities should be used. A total 6115 patient data were recorded among four age groups: <1 y, >1-5 >5-10 y >10-15 y. CTDIw, CTDI vol DLP CT console dedicated forms together with technical parameters. Statistical...
Background The increasing use of ionizing radiation in clinical environments, particularly during surgeries such as orthopedics and neurosurgery, has heightened concerns about the potential health risks associated with this type radiation. This issue is relevant for nursing students undergoing training operating room settings, where they are frequently exposed to various sources To effectively implement protection principles, it crucial evaluate knowledge attitudes toward Understanding their...
Various methods, such as those developed by the Medical Internal Radiation Dosimetry (MIRD) Committee of Society Nuclear Medicine or employing dose point kernels, have been applied to radiation dosimetry (131)I radionuclide therapy. However, studies not shown a strong relationship between tumour absorbed and its overall therapeutic response, probably due in part inaccuracies activity estimation. In current study, GATE Monte Carlo computer code was used facilitate voxel-level for organ...
ENWEndNote BIBJabRef, Mendeley RISPapers, Reference Manager, RefWorks, Zotero AMA Khosravi H, Hashemi B, Rahmani F, Ebadi A. Investigation of the gold nanoparticles effects on prostate dose distribution in brachytherapy: gel dosimetry and Monte Carlo method. Journal Contemporary Brachytherapy. 2016;8(5):422-428. doi:10.5114/jcb.2016.63453. APA Khosravi, H., Hashemi, B., Rahmani, F., & Ebadi, (2016). Brachytherapy, 8(5), 422-428. https://doi.org/10.5114/jcb.2016.63453 Chicago Hossein, Bijan...
This paper introduces a high gain and low power concurrent dual-band low-noise amplifier (LNA) operating in the 2.4/5.2-GHz which can be used for wireless local area network (WLAN) applications. The proposed LNA consists of wideband notch filters. employs current-reused technique to reduce consumption provide flat over wide bandwidth. By applying filters at first stage output second input LNA, frequency response is formed. has been designed simulated RF-TSMC 0.18μm CMOS technology by...
Background : In diagnosc radiology there are two reasons for measuring or esmang radiaon doses to paents. Firstly measure ments provide a means seng and checking standards of good pracce as an aid the opmizaon paent protecon. Secondly esmates o f absorbed dose ssue organs in Materials Methods: A total 2382 paents were studied calculate Entrance Surface Air Kerma (ESAK) following seven radiographic examinaons including: chest (PA, Lat), lumbar spines (AP, pelvis (AP), abdomen skull thoracic...
Background: Normoxic type MAGICA gel dosimeters are established for dose quantification in three dimensions radiotherapy. Objective(s): The ability of polymer was assessed by experimental measurements method studying the effect gold nanoparticles (GNPs) enhancement under external 18MV radiotherapy practices. Methods: different GNPs concentrations were studied: 0.02mM, 0.05 mM and 0.1 mM. Then, a new formulation synthesized. fabricated poured tubes (with without GNPs) located at water...
The general population, everywhere in the world is exposed to a small dose of ionising radiation from natural sources. Stochastic effects such as cancer and genetic disorders are caused when living creatures low doses. In Iran, it measured some cities, especially high-background areas Ramsar, but so far there no measurement Hamadan province. located west Iran. Measurements were performed using RDS-110 survey meter, CaSO4:Dy thermoluminecense dosimetries (TLDs) Harshaw 4000 TLD reader. To...
In this paper, an ultra-wideband (UWB) 3-10 GHz low noise amplifier (LNA) designed in a 0.18 μm RF-CMOS technology is presented. A cancelling technique has been used to improve the performance of proposed UWB LNA. Moreover, LNA uses current reuse and inductive peaking techniques provide power dissipation high flat gain. An input impedance matching 50 Ω provided by new network over band. addition, method for multiobjective optimization UWB-LNA using multi-objective inclined planes system...
A low power concurrent dual-band noise amplifier (LNA) which can operate at the 2.4/5.2 GHz WLAN applications has been designed in RF-TSMC 0.18μm CMOS process technology. The proposed design provides a LNA with consumption, high gain and suitable figure it consume 2.49 mW 1.5 V voltage supply. common source stage current-reused technique is used to create flat over wide bandwidth reduce consumption. By applying notch filters input output networks of LNA, frequency response shaped. (S <sub...
Objective(s): In this study we evaluate the impact of different aspects Gold Nano-Particles (GNPs) on target absorptive Dose Enhancement Factor (DEF) during external targeted radiotherapy with photon beams ranging from kilovolt to megavolt energies using Monte Carlo simulation. Methods: We have simulated interaction various radiation water solution containing GNPs be located in a tumor region and used MCNP5 code for Initially, phantom which dimensions 1 × cm3 was defined as target, contained...
Aim. This study aimed to investigate the frequency of unnecessary tests requested in Be’sat Hospital Hamadan. Materials and Methods. descriptive research was conducted order requests for CT scan radiography patients referring imaging department Hamadan a 4- 6-month period. Patient information, including gender, age, type test, reason requesting expertise physician, result radiologist’s report on each extracted collected. Results. A total 1000 scans were evaluated. The mean age these about 36...
Purpose: To reduce entrance surface air Kerma (ESAK) of routine radiological examinations in some heavy loaded radiology departments using proper equipments and training.Methods: ESAK for 12 radiographic has been measured 10 high belonging to country main health insurance organization after quality control x_ray units training all radiographers each use technical charts room, mainly according EUR 16260 optimized exposure factors. The were X‐ray tube output, parameters including...
Journal Article Criteria for patient release according to external dose rate and residual activity in patients treated with131 I-sodium iodide Iran Get access N. Ahmadi Jeshvaghane, Jeshvaghane * 1National Radiation Protection Department, Iranian Nuclear Regulatory Authority, PO Box 14155-4494, Tehran, *Corresponding author: nahmadi_j@yahoo.com Search other works by this author on: Oxford Academic PubMed Google Scholar R. Paydar, Paydar B. Fasaei, Fasaei A. Pakneyat, Pakneyat Karamloo,...
The X-ray body scanner (BS) is going to find common use as a body-checking equipment at the entrance borders of countries, illicit drugs or forbidden items which have been hidden inside cavities, attached parts passengers. Considering tissue weighting factors sensitive organs, total effective dose due scanning by system was estimated be 3.8 µSv per scan. ambient equivalent rates within distance range 300-40 cm from generator were measured 4.5 up 50 h(-1). It concluded that, in general, BS...
In this paper, a novel 10T SRAM bit-cell with high read/write static noise margin and low power dissipation is presented to be utilized in binary in-memory computing. The proposed employs conventional 6T along four extra transistors decouple read write operation paths improve the stability of bit-cell. two M7 M8 structure act as switches enable dot product IMC mode. To conduct comparative analysis, various designs were simulated using Cadence design framework 65 nm technology. not only...