Transmuted isotopes doped in neutron-irradiated ZnO thin films

Kim, Hyunsuk; Park, Kwangsue; Min, Byungdon; Lee, Jong Soo; Cho, Kyoungah; Kim, Sangsig; Han, Hye‐Jung; Hong, Soon–Ku; Yao, Takafumi

doi:10.1016/j.nimb.2003.11.085

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…When the ZnO crystal absorbs a photon and an exciton is formed, the excitonic state can interact with the nearby Ga dopant level and emit a photon at a slightly different energy or wavelength compared to the undoped ZnO. This results in the appearance of an additional excitonic peak in the PL spectrum at the energy level corresponding to the Ga dopant level [32,[36][37][38]. Table 3 shows that transmutation into gallium will be achieved when 68 Zn, 70 Zn nucleus capture a neutron and form 69 Zn, 71 Zn, which then decay to 69 Ga and 71 Ga, respectively.…”

Section: Minmentioning

confidence: 99%

Neutron Irradiation to Transmute Zinc into Gallium

Zeidan

Abedrabbo

2023

Nanomaterials

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Modified 241Am-Be neutron beams showed an ability to change the optical properties of zinc oxide (ZnO) photoluminescence (PL) spectra by transmuting zinc (Zn) into gallium (Ga) after irradiation. This study investigates the time required by slow neutron irradiation to register the transmutation of the Zn into Ga. Two series of samples from different suppliers hydrothermally (HT) grown by TEW Tokyo Denpa Co. Ltd., Tokyo, Japan, and MTI corporation, China, are irradiated for 6, 12, 18, and 24 days on the Zn-polar face of each sample to specify the relationship between the irradiation intensity and transmutation.

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Section: Minmentioning

confidence: 99%

Neutron Irradiation to Transmute Zinc into Gallium

Zeidan

Abedrabbo

2023

Nanomaterials

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“…However, it is not clear if depleted ZnO can be made into a form suitable for use as a transducer. 105 In addition to the materials for which there are data reporting the effects of radiation, there are also a number of newer materials, many developed to support SONAR or other transduction needs, that have yet to be evaluated in terms of their response to ionizing radiation.…”

Section: New In-pile Instrumentation To Support Fuel Cycle Research Amentioning

confidence: 99%

New In-pile Instrumentation to Support Fuel Cycle Research and Development

Rempe¹,

MacLean²,

Schley³

et al. 2011

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SUMMARYNew and enhanced nuclear fuels are a key enabler for new and improved reactor technologies. For example, the goals of the next generation nuclear plant (NGNP) will not be met without irradiations successfully demonstrating the safety and reliability of new fuels. Likewise, fuel reliability has become paramount in ensuring the competitiveness of nuclear power plants. Recently, the Office of Nuclear Energy in the Department of Energy (DOE-NE) launched a new direction in fuel research and development that emphasizes an approach relying on first principle models to develop optimized fuel designs that offer significant improvements over current fuels. To facilitate this approach, high fidelity, real-time, data are essential for characterizing the performance of new fuels during irradiation testing. A three-year strategic research program has been initiated for developing the required test vehicles with sensors of unprecedented accuracy and resolution for obtaining the data needed to characterize three-dimensional changes in fuel microstructure during irradiation testing. When implemented, this strategy will yield test capsule designs that are instrumented with new sensor technologies for irradiations at facilities primarily relied upon by the Fuel Cycle Research and Development (FCR&D) program, the Advanced Test Reactor (ATR) and the High Flux Isotope Reactor (HFIR). Prior laboratory testing, and as needed, irradiation testing of sensors in these capsules will have been completed to give sufficient confidence that the irradiation tests will yield the required data.From the onset of this instrumentation development effort, it was recognized that obtaining these sensors must draw upon the expertise of a wide-range of organizations not currently supporting nuclear fuels research. Hence, a draft version of this document was developed to provide necessary background information related to fuel irradiation testing, desired parameters for detection, and an overview of currently available in-pile instrumentation. Then, a workshop was held in which U.S. and foreign experts from fuels, irradiation, and instrumentation fields participated. Prior to this workshop, copies of a draft version of this document were distributed to participants to stimulate expert interactions at this meeting. During the workshop, candidate sensor technologies identified in this document were discussed and ranked by the experts using agreed upon criteria. The final version of this document describes the consensus reached during the workshop with respect to recommendations for the path forward for accomplishing the goals of this research program.Based on the activities completed to develop this strategic plan, it is recommended that the FCR&D instrumentation development program be initiated as a three year program that includes the following three tasks:• Ultrasonics-Based Evaluations -In this task, laboratory evaluations and necessary irradiations will be completed to demonstrate the viability of this technology for in-pile applications. Specif...

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