Results 21 to 30 of about 100,161 (232)

Research on the relationship between the scattering contribution and physical factors of the reference radiation regulated by ISO 4037-1.

open access: yesPLoS ONE, 2022
In the latest version of ISO 4037-1:2019 standard, the minimum dimension of a gamma radiation reference field was not clearly specified, which makes the construction of a minitype gamma reference radiation field lack of scientific basis.
Yi-Kun Qian   +5 more
doaj   +2 more sources

A STUDY ON GAMMA RADIATION RESPONSE OF CERIC SULFATE DOSIMETER [PDF]

open access: yesActa Scientifica Malaysia, 2019
Nuclear radiation is highly beneficial in controlled way. On the other hand, it has shown severe damaging effects on human health when our body is directly exposed to it. To prevent its exposure or overdose several dosimeters have been synthesized with
Shamoon Al Islam   +4 more
doaj   +1 more source

Pulse-shape discrimination between electron and nuclear recoils in a NaI(Tl) crystal [PDF]

open access: yes, 2015
We report on the response of a high light-output NaI(Tl) crystal to nuclear recoils induced by neutrons from an Am-Be source and compare the results with the response to electron recoils produced by Compton scattered 662 keV $\gamma$-rays from a $^{137 ...
Adhikari, G.   +26 more
core   +2 more sources

A microfabricated steel and glass radiation detector with inherent wireless signaling [PDF]

open access: yes, 2011
This paper describes an investigation of the performance compromises imposed by a manufacturing approach that utilizes lithographic micromachining processes to fabricate a wireless beta/gamma radiation detector.
Eun, Christine K.   +1 more
core   +1 more source

Structural and microstructural study of gamma ray-irradiated co-doped barium titanate (Ba0.88Ca0.12Ti0.975Sn0.025O3) [PDF]

open access: yesProcessing and Application of Ceramics, 2016
Barium calcium stannate titanate (Ba0.88Ca0.12Ti0.975Sn0.025O3) ceramics, synthesized by solid state reaction method and sintered at 1100 °C/3 h, were exposed to gamma radiation dose of up to 1 kGy using a Cs-137 irradiation source at a dose rate of 100 ...
Umaru Ahmadu   +4 more
doaj   +1 more source

The design of a source to simulate the gamma-ray spectrum emitted by a radioisotope thermoelectric generator [PDF]

open access: yes, 1972
A simulated source was designed to duplicate the gamma spectrum of a uniform cylindrical 2200-watt Pu02 radioisotope thermoelectric generator containing 81% Pu-238 and 1.2 ppm Pu-236.
Reier, M.
core   +2 more sources

Tests of multigap RPCs for high-eta triggers in CMS [PDF]

open access: yes, 2012
In this paper, we report a systematic study of multigap Resistive Plate Chambers (RPCs) for high-eta triggers in CMS. Prototype RPC modules with four- and six-gap structures have been constructed with phenolic high-pressure-laminated (HPL) plates and ...
Aleksandrov, A.   +19 more
core   +2 more sources

Study the Shielding Properties against Gamma-rays for Epoxy Resin Reinforced by Different materials

open access: yesمجلة بغداد للعلوم, 2016
In the present work the Buildup factor for gamma rays were studied in shields from epoxy reinforced by lead powder and by aluminum powder, for NaI(Tl) scintillation detector size ( ×? ), using two radioactive sources (Co-60 and Cs-137).
Baghdad Science Journal
doaj   +1 more source

Ground Radioactivity Distribution Reconstruction and Dose Rate Estimation Based on Spectrum Deconvolution

open access: yesSensors, 2023
Estimating the gamma dose rate at one meter above ground level and determining the distribution of radioactive pollution from aerial radiation monitoring data are the core technical issues of unmanned aerial vehicle nuclear radiation monitoring.
Hang Xu   +8 more
doaj   +1 more source

137CS gamma-ray detection at Summit, Greenland [PDF]

open access: yes, 1994
Global fall-out from atmospheric testing of thermonuclear weapons produced horizon markers corresponding to the initiation of testing in 1953 and the maximum fall-out in 1963.
Dibb, Jack E., Dunphy, P. P.
core   +2 more sources

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