Results 11 to 20 of about 503,560 (263)

Radiation Sterilization: Dose Is Dose [PDF]

open access: yesBiomedical Instrumentation & Technology, 2020
In the radiation sterilization arena, the question often arises as to whether radiation resistance of microorganisms might be affected by the energy level of the radiation source and the rate of the dose delivered (kGy/time). The basis for the question is if the microbial lethality is affected by the radiation energy level and/or the rate the dose is ...
Joyce M, Hansen   +4 more
openaire   +2 more sources

Radiation dose and protection [PDF]

open access: yesCanadian Medical Association Journal, 2011
All studies should involve the minimum amount of radiation required to provide the required information. Children have an increased risk from radiation exposure because of a longer expected lifespan and increased tissue radiosensitivity.
Mark O, Baerlocher   +3 more
openaire   +2 more sources

Radiation dose in vertebroplasty [PDF]

open access: yesNeuroradiology, 2004
We wished to measure the absorbed radiation dose during fluoroscopically controlled vertebroplasty and to assess the possibility of deterministic radiation effects to the operator. The dose was measured in 11 consecutive procedures using thermoluminescent ring dosimeters on the hand of the operator and electronic dosimeters inside and outside of the ...
Mehdizade A   +10 more
openaire   +3 more sources

Lymphocyte Depletion Rate as a Biomarker of Radiation Dose to Circulating Lymphocytes During Fractionated Partial-Body Radiation Therapy

open access: yes, 2022
PURPOSE: Radiation causes exponential depletion of circulating lymphocyte populations; in turn, radiation-induced lymphopenia is associated with worse survival for many solid tumors, possibly owing to attenuated antitumor immune responses.
Mohan, Radhe   +9 more
core   +1 more source

Enhanced Radiation-Induced Narrow Channel Effects in Commercial 0.18 μm Bulk Technology [PDF]

open access: yes, 2011
Total ionizing dose effects are investigated in input/output transistors that are fabricated by using a commercial 0.18 μm bulk process. An enhanced radiation-induced narrow channel effect is demonstrated in N-type metal-oxide semiconductor (NMOS) and P ...
Goiffon, Vincent   +14 more
core   +1 more source

Radiation Carcinogenesis at Low Doses [PDF]

open access: yesScience, 1972
An analysis of experimental findings indicates that the induction of a mammary neoplasm in the Sprague-Dawley rat is dependent on the action of radiation on more than one cell. Although a linear relation between incidence and x-ray dose might be consistent with available data, such a relation would be fortuitous and linear extrapolation to lower doses ...
Rossi, H. H., Kellerer, Albrecht M.
openaire   +3 more sources

CT radiation doses [PDF]

open access: yesArchives of Disease in Childhood, 2003
The hazards of computed tomography (CT), in terms of radiation, are being increasingly recognised. CT scanning, despite representing less than 5% of the total number of x ray procedures performed, contributes approximately 40% of the total collective radiation dose to the UK population from all medical x ray examinations.1 It is well known that ...
openaire   +2 more sources

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

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

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   +3 more
core   +1 more source

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