نتایج جستجو برای: 39 dosimeter

تعداد نتایج: 99212  

Journal: :Journal of Instrumentation 2019

2017
Kazuta Yamashita Hisanori Ikuma Takuya Tokashiki Takashi Maehara Akihiro Nagamachi Yoichiro Takata Toshinori Sakai Kosaku Higashino Koichi Sairyo

STUDY DESIGN Prospective study. PURPOSE During fluoroscopically guided spinal procedure, the hands of spinal surgeons are placed close to the field of radiation and may be exposed to ionizing radiation. This study directly measured the radiation exposure to the hand of a spinal interventionalist during fluoroscopically guided procedures. OVERVIEW OF LITERATURE Fluoroscopically guided spinal...

2010
S. V. VADAWALE J. N. GOSWAMI T. P. DACHEV B. T. TOMOV

The Radiation Monitor (RADOM) payload is a miniature dosimeter-spectrometer onboard Chandrayaan-1 mission for monitoring the local radiation environment in nearEarth space and in lunar space. RADOM measured the total absorbed dose and spectrum of the deposited energy from high energy particles in near-Earth space, en-route and in lunar orbit. RADOM was the first experiment to be switched on soo...

Journal: :iranian journal of radiation research 0
k. adinehvand borujerd islamic azad university, borujerd, iran m.h. zahmatkesh novin radiation medicine institute, tehran, iran m.r aghamiri division of radiation medicine, shahid beheshti university, tehran, iran sh. akhlaghpour department of radiology, tehran university of medical sciences, tehran, iran s. bagheri novin radiation medicine institute, tehran, iran

background: the purpose of this study was to evaluate the dependency of magica polymer gel dosimeter response (r2) on different electron energies as well as on different mean dose rate for a standard clinically used linear accelerator. materials and methods: the sensitivity of the dosimeter was represented by the slope of calibration curve in the linear region measured for each modality. a cali...

Journal: :journal of medical signals and sensors 0
seyed salman zakariaee mikaeil molazadeh abbas takavar alireza shirazi asghar mesbahi ahad zeinali

in radiation cancer treatments, the most of the side effects could be minimized using a proper dosimeter. gel dosimeter is the only three‑dimensional dosimeter and magnetic resonance imaging (mri) is the gold standard method for gel dosimeter readout. because of hard accessibility and high cost of sample reading by mri systems, some other alternative methods were developed. the optical computed...

Journal: :international journal of pediatrics 0
a mohammadzadeh professor of neonatology, neonatal research center, imam reza hospital, faculty of medicine, mashhad university of medical sciences, mashhad, iran. ash farhat assistant professor of neonatology, neonatal research center, imam reza hospital, faculty of medicine, mashhad university of medical sciences, mashhad, iran.

introduction: congenital gastrointestinal (gi) malformation occurs due to mal development of gi organs. the diagnosis is based on clinical exam and radiography. the aim of this study was to determine prevalence of gastrointestinal anomalies in imam reza hospital deliveries mashhad, iran. materials and methods: in retrospective descriptive study for one year since 1.8.1391 all deliveries in our ...

Journal: :Japanese Journal of Radiological Technology 1976

Journal: :Review of Scientific Instruments 1966

A.A. Mahmoud, A.A. Rahman, I.S. Mustafa, N.N.A Razak, N.Z. Yahaya, S. Kandaiya,

Background: An effective polymer gel dosimeter can be fabricated by varying the composition of its chemical components. Materials and Methods: The MAGAT gel dosimeter formulations that used different compositions of Methacrylic acid (MAA) and gelatin were extensively investigated in the present study according to the R2–dose response and R2–dose sensitivity. The irradiation of M...

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