نتایج جستجو برای: instantaneous dose rate

تعداد نتایج: 1241918  

A.K. Wadhwani Shweta Agarwal,

In this paper the main objective is to quantify and compare the instantaneous value of heart rate for normal breathing patterns during Meditation and Non Meditation conditions. This paper involves Analysis of Variance (ANOVA) technique for the analysis of the heart rate variability patterns during the meditative and non meditative states. The analysis is divided into three stages i.e. data acqu...

Journal: :iranian journal of nuclear medicine 2014
nosheen fatima maseeh zaman samreen iqbal maryam salahuddin unaiza zaman

introduction: to measure radiation exposures rate in low-risk patients having stress-only and stress-rest myocardial perfusion imaging. methods: this was a prospective study conducted from january 2012 till november 2012 upon patients with low pre-test probability for coronary artery disease (cad). a stress mpi (stress-only if mpi is normal and no resting study) followed by a resting mpi study...

Journal: :iranian journal of radiation research 0
k. kant department of physics, kl mehta dayanand college for women, faridabad (haryana)-121 001, india s.b. upadhyay department of physics, b.s.a. college, mathura (u.p.), india r.g. sonkawade inter university accelerator centre, new delhi - 110 067, india s.k. chakarvarti department of applied physics, nit, kurukshetra – 136 119, india

abstract background: the radiological impact of the use of phosphate fertilizers in soil is due to the internal irradiation of the lung by the alpha particles, short lived radon-thoron progeny and the external irradiation of the body by gamma rays emitted from radionuclides in situ. this paper describes the results of gamma spectrometric measurements of the concentration of the natural radionuc...

Journal: :iranian journal of medical physics 0
hossein salehi yazdi m.sc. student of medical radiation engineering , nuclear engineering and physics dept., amirkabir university of technology, tehran, iran mojtaba shamsaei assistant professor, nuclear engineering and physics dept., amirkabir university of technology, tehran, iran hamid reza shabani m.sc. student of medical physics, medical physics dept., tehran university of medical sciences, tehran, iran ramin jaberi radiotherapy physicist, cancer institute, imam khomeini hospital, tehran, iran saeed setayeshi associate professor, nuclear engineering and physics dept., amirkabir university of technology, tehran, iran

introduction: this study investigates to what extent the computed dose received by lung tissue in a commercially available treatment planning system (tps) for 192ir high-dose-rate breast brachytherapy is accurate in view of tissue inhomogeneities and presence of ribs. materials and methods: a ct scan of the breast was used to construct a patient-equivalent phantom in the clinical treatment plan...

Journal: :International Journal of Radiation Oncology*Biology*Physics 2017

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