Results 1 to 10 of about 27,496 (250)

Measurement of ambient dose equivalent in compact proton therapy using in-house neutron moderator-based poly allyl diglycol carbonate [PDF]

open access: yesJournal of Medical Physics, 2023
Purpose: The high-energy proton produces the unwanted dose contribution from the secondary neutron. The main purpose of this study is to report the validation results of in-house neutron moderator based on poly allyl diglycol carbonate (CR-39) detector ...
Tanawat Tawonwong   +5 more
doaj   +2 more sources

An analytic model of neutron ambient dose equivalent and equivalent dose for proton radiotherapy. [PDF]

open access: yesPhys Med Biol, 2010
Stray neutrons generated in passively scattered proton therapy are of concern because they increase the risk that a patient will develop a second cancer. Several investigations characterized stray neutrons in proton therapy using experimental measurements and Monte Carlo simulations, but capabilities of analytical methods to predict neutron exposures ...
Zhang R   +4 more
europepmc   +4 more sources

Influence of solar activity on ambient dose equivalent H*(10) measured with thermoluminescent dosimeters in Slovenia [PDF]

open access: yesArhiv za Higijenu Rada i Toksikologiju, 2021
Ambient dose equivalent H *(10) is measured to assess general population exposure to ionising radiation. From its spatial and time variations it is possible to identify sources of exposure.
Zorko Benjamin   +4 more
doaj   +2 more sources

Monte Carlo Simulations of Neutron Ambient Dose Equivalent in a Novel Proton Therapy Facility Design [PDF]

open access: yesInternational Journal of Particle Therapy, 2020
Purpose: The neutron shielding properties of the concrete structures of a proposed proton therapy facility were evaluated with help of the Monte Carlo technique.
Uwe Titt, Enzo Pera, Michael T. Gillin
doaj   +2 more sources

Numerical model for computation of effective and ambient dose equivalent at flight altitudes [PDF]

open access: yesJournal of Space Weather and Space Climate, 2015
A numerical model for assessment of the effective dose and ambient dose equivalent produced by secondary cosmic ray particles of galactic and solar origin at commercial aircraft altitudes is presented.
Mishev Alexander, Usoskin Ilya
doaj   +2 more sources

Ambient dose equivalent measurement with a CsI(Tl) based electronic personal dosimeter

open access: yesNuclear Engineering and Technology, 2019
In this manuscript, we present a method for the direct calculation of an ambient dose equivalent (H*(10)) for the external gamma-ray exposure with an energy range of 40 keV to 2 MeV in an electronic personal dosimeter (EPD).
Kyeongjin Park   +7 more
doaj   +3 more sources

Investigating the soil surface properties behind elevated natural radiation in Mamuju, Indonesia [PDF]

open access: yesScientific Reports
Mamuju Regency, Indonesia, is among the world’s notable high natural background radiation areas (HBNRAs). This study examines the environmental and geochemical processes responsible for the accumulation of uranium (U), thorium (Th), and potassium (K) in ...
Adi Rahmansyah Amir Abdullah   +14 more
doaj   +2 more sources

Estimation of Ambient Dose Equivalent Rate Distribution Map Using Walking Survey Technique in Hirosaki City, Aomori, Japan [PDF]

open access: yesInternational Journal of Environmental Research and Public Health, 2023
Masahiro Hosoda   +2 more
exaly   +2 more sources

Nationwide mapping of terrestrial gamma radiation in South Korea using a car-borne survey system [PDF]

open access: yesScientific Reports
This study conducted a nationwide car-borne radiation survey to assess background radiation levels originating from naturally occurring radionuclides across South Korea.
Jaeho Jang   +3 more
doaj   +2 more sources

Seasonal variations of ambient dose equivalent rate on the streets of Saint Petersburg

open access: yesРадиационная гигиена
The gamma dose rate in air at any given outdoor location is not constant throughout the year. These fluctuations of the dose rate should be taking into account when assessing external radiation dose to humans.
V. P. Ramzaev, A. N. Barkovsky
doaj   +2 more sources

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