Results 21 to 30 of about 2,553,170 (258)

Radiation Effects in Pinned Photodiode CMOS Image Sensors: Pixel Performance Degradation Due to Total Ionizing Dose [PDF]

open access: yes, 2012
Several Pinned Photodiode (PPD) CMOS Image Sensors (CIS) are designed, manufactured, characterized and exposed biased to ionizing radiation up to 10 kGy(SiO2 ).
Goiffon, Vincent   +20 more
core   +1 more source

Analysis of simultaneous time series of indoor, outdoor and soil air radon concentrations, meteorological and seismic data

open access: yesNukleonika, 2016
It is well known that the temporal dynamic of indoor and outdoor radon concentrations show complex patterns, which are partly not easy to interpret. Clearly, for physical reasons, they must be related to possibly variable conditions of radon generation ...
Janik Mirosław, Bossew Peter
doaj   +1 more source

A STUDY OF STUDENT AWARENESS OF RADIATION PROTECTION SKILLS AT J AZAN UNIVERSITY

open access: yesKing Khalid University Journal of Health Sciences, 2019
Objectives: To evaluate radiology students’ awareness of ionising radiation exposure and its related risks during common diagnostic imaging procedures, to evaluate students’ radiation protection knowledge for assessment of educational processes and ...
Nouf H. Abuhadi
doaj   +1 more source

Measurement of the Radiation Dose Rates of Patients Receiving Treatment with I-131 Using Telescopic Radiation Survey Meter [PDF]

open access: yesIranian Journal of Medical Physics, 2016
Introduction In order to discharge the patients receiving treatment with large radiation doses of 131I for thyroid cancer, it is necessary to measure and evaluate the external dose rates of these patients.
Yehia Lahfi, Osama Anjak
doaj   +1 more source

Radiation damages in CMOS image sensors: testing and hardening challenges brought by deep sub-micrometer CIS processes [PDF]

open access: yes, 2010
This paper presents a summary of the main results we observed after several years of study on irradiated custom imagers manufactured using 0,18 µm CMOS processes dedicated to imaging.
Goiffon, Vincent   +13 more
core   +1 more source

Radiation Dose Evaluation for Radiotherapy Workers at Unand Hospital Using Four-Element Thermoluminescence Dosimetry

open access: yesJurnal Ilmiah Pendidikan Fisika Al-Biruni, 2023
Radiotherapy is a non-surgery therapy that employs ionizing radiation like X-ray or even radiation to cure cancer as a curative activity. Radiation dose rate analysis is required for the person who worked on radiotherapy to strengthen safety precautions ...
Ramacos Fardela   +5 more
doaj   +1 more source

The variance-covariance method: Microdosimetry in time-varying low dose-rate radiation fields [PDF]

open access: yes, 1988
The variance-covariance method is employed at low doses and in radiation fields of low dose rates from an241Am (4 nGy/s) and a90Sr (300 nGy/s) source. The preliminary applications and results illustrate some of the potential of the method, and show that ...
Breckow, Joachim   +7 more
core   +1 more source

The Effect of High-Dose-Rate Pulsed Radiation on the Survival of Clinically Relevant Radioresistant Cells

open access: yesLife, 2021
We demonstrated that low dose pulsed radiation (0.25 Gy) at a high-dose-rate, even for very short intervals (10 s), decreases cell survival to a greater extent than single exposure to a similar total dose and dose rate. The objective of this study was to
Shingo Terashima   +4 more
doaj   +1 more source

Assessment of Occupational Exposure to External Radiation among Workers at the Institute of Radiotherapy and Nuclear Medicine, Pakistan (2009-2016) [PDF]

open access: yesIranian Journal of Medical Physics, 2017
Introduction: Assessment of occupational exposure to external radiation and the analysis of associated trends are imperative to observe changes that have taken place over time due to regulatory operations or technological advancements.
Misbah Ahmad   +6 more
doaj   +1 more source

Radiation dose estimates for radiopharmaceuticals

open access: yes, 1996
Tables of radiation dose estimates based on the Cristy-Eckerman adult male phantom are provided for a number of radiopharmaceuticals commonly used in nuclear medicine.
Stubbs, J. B.   +2 more
core   +1 more source

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