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Parus, J.; Kierzek, J.; Raab, W; Donohue, D. L.

doi:10.1023/a:1026270428392

Cited by 21 publications

(4 citation statements)

References 26 publications

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“…The maximum energy transferred to the outgoing electron is Considering the cross section for the Compton recoil electron [37], for the two incoming 60 Co gamma ray photons with E in (1) = 1.3325 MeV and E (2) = 1.1732 MeV [38], the corresponding maximum {average} energies transferred to the outgoing electrons were calculated as E max (1) = 1.1181 MeV {E avg (1) = 0.6384 MeV} and E max (2) = 0.9634 MeV {E avg (2) = 0.5420 MeV}, respectively. Energetic recoil electrons may then collide with the nuclei in the lattice and displace a chain of atoms, creating interstitials and vacancies.…”

Section: Resultsmentioning

confidence: 99%

High dose gamma irradiation effects on properties of active layers in ZnO thin film transistors

Mirkhani

Wang

Yapabandara

et al. 2021

Semicond. Sci. Technol.

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Solution-based bottom-gate zinc oxide thin film transistors (TFTs) were fabricated, remaining functional and demonstrating stability under extreme gamma irradiation conditions. Unpassivated TFTs were fabricated on samples with different number of ZnO layers grown via sol-gel spin coating technique. The devices were characterized before and after exposure to a cumulative dose of 220 MRad (air) of gamma irradiation. Atomic force microscopy (AFM), x-ray diffraction (XRD), and photoluminescence (PL) were employed to characterize the TFT active layers. Thickness measurements and optical images suggest the removal of the channel surface, conceivably due to cumulative effect of displacement damage near the ZnO surface. Device electrical characteristics were extracted from current-voltage measurements. The impact of displacement damage on the degradation/enhancement of device characteristics as a consequence of surface/bulk effects is discussed.

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Section: Resultsmentioning

confidence: 99%

High dose gamma irradiation effects on properties of active layers in ZnO thin film transistors

Mirkhani

Wang

Yapabandara

et al. 2021

Semicond. Sci. Technol.

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“…3), agreeing with the variability observed by other authors. 3,14 It should be emphasized that the variation of the suppression factor with energy is strongly influenced by the configuration of the CSS regarding the position of the secondary detectors relative to the main detector and source. 3 Such behavior can be observed by comparing the shape of the lines plotted for the different distances, with and without the plug detector.…”

Section: Suppression Factormentioning

confidence: 99%

INAA with Compton suppression: How much can the analysis of plant materials be improved?

Bacchi

Santos

Fernandes

et al. 2007

J Radioanal Nucl Chem

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The effectiveness of a Compton suppression system (CSS) for instrumental neutron activation analysis of plant materials was evaluated. Suppression factors were measured with 137 Cs sources. Five certified reference materials were analyzed and the detection limits calculated from both suppressed and unsuppressed spectra were compared. The CSS demonstrated to be useful for lowering the detection limits of ten out of sixteen elements tested, showing a maximum improvement factor of 3.9. The system performance was strongly influenced by the sample composition and also by the measurement conditions, indicating the importance of testing each individual sample type and analytical protocol.

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“…The secondary detectors are most often NaI(Tl) or bismuth germinate (BGO) (See references in Ref. [8]). Ultralow-background gamma-ray spectrometers can benefit from Compton suppression, if no radioactivity is introduced in the construction.…”

Section: Introductionmentioning

confidence: 99%

Operation of a high-purity germanium crystal in liquid argon as a Compton-suppressed radiation spectrometer

Orrell

Aalseth

Amsbaugh

et al. 2007

Nuclear Instruments and Methods in Physics Research Section A:

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A high purity germanium crystal was operated in liquid argon as a Compton suppressed radiation spectrometer. Spectroscopic quality resolution of less than 1% of the full-width half maximum of full energy deposition peaks was demonstrated. The construction of the small apparatus used to obtain these results is reported. The design concept is to use the liquid argon bath to both cool the germanium crystal to operating temperatures and act as a scintillating veto. The scintillation light from the liquid argon can veto cosmic-rays, external primordial radiation, and gamma radiation that does not fully deposit within the germanium crystal. This technique was investigated for its potential impact on ultra-low background gamma-ray spectroscopy. This work is based on a concept initially developed for future germanium-based neutrinoless double-beta decay experiments.

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Untitled

Cited by 21 publications

References 26 publications

High dose gamma irradiation effects on properties of active layers in ZnO thin film transistors

High dose gamma irradiation effects on properties of active layers in ZnO thin film transistors

INAA with Compton suppression: How much can the analysis of plant materials be improved?

Operation of a high-purity germanium crystal in liquid argon as a Compton-suppressed radiation spectrometer

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