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Yuanzineng kexue jishu
Scopus
ISSN 1000-6931 · Editorial Board of Atomic Energy Science and Technology · 1.257 artikel di indeks
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Artikel Jurnal
Development of Cassette-type Automated Synthesis Module for Sodium [18F]fluorine Injection
Sodium [18F]fluoride injection is a radiopharmaceutical commonly used for positron emission tomography (PET), primarily for bone imaging and tumor diagnosis. It plays a crucial role in diagnosing bone metastases, monitoring bone metabolism disorders, and assessing various oncological and orthopedic…
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Artikel Jurnal
storage ring , closed-orbit distortion , closed-orbit correction , correction algorithm , beam orbit stability
The High Energy Photon Source (HEPS) storage ring, as a large-scale scientific research facility, requires precise control of its pre-alignment system, which is of utmost importance. The storage ring consists of 48 periods and 288 pre-alignment units, including 96 units each of the three-magnet…
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Artikel Jurnal
Simulation Study on Closed-orbit Correction for Storage Ring of Wuhan Advanced Light Source
As a fourth-generation synchrotron radiation source, the Wuhan Advanced Light Source (WALS) adopts a compact multi-bend achromat (MBA) lattice design, which brings significant performance improvements while imposing more stringent requirements on beam orbit stability. This paper systematically…
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Artikel Jurnal
Optimal Design of Proton Radiography Magnetic Lens
Due to its advantages such as high resolution, high detection efficiency, high signal-to-noise ratio, and strong penetrability, proton radiography technology has become a major research hotspot in the hydrodynamic diagnostic technology. To solve the problem of the radiography blurring caused by…
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Artikel Jurnal
Research on Neutralization Technology for 100 MeV Proton Cyclotron
The neutralization research using the 100 MeV proton cyclotron (CYCIAE-100) in China Institute of Atomic Energy was conducted, and a partial stripping technique with thin foils was proposed. Unlike conventional stripping extraction that completely converts negative hydrogen ions to proton beams, a…
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Artikel Jurnal
Preparation of Isotopic 150Sm and 147Sm Nuclear Reaction Targets
The 150Sm and 147Sm isotopic targets are needed in the Coulomb excitation experiments to study the nuclear structure of Sm isotopes in the rare-earth region. A novel reduction-distillation apparatus was designed and established to efficiently reduce 150Sm2O3 and 147Sm2O3 to 150Sm and 147Sm…
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Artikel Jurnal
Design of High Pulse Dose Ionization ChamberBased on Numerical Solution of One-dimensional Transport Model
In order to address the problem of reduced charge collection efficiency of existing commercial ionization chambers under high pulse dose conditions due to severe ion recombination effects, the ion transport process under high pulse dose conditions was studied in depth based on the numerical…
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Artikel Jurnal
Damage Effect of Single and Sequential Neutron/γ Irradiation on Bipolar Device
Bipolar transistors are widely used in electronic circuits and serve as core components in various devices. In the complex radiation environments, electronic circuits are exposed to more than one type of radiation particle. Research has found that the degradation of devices exposed to simultaneous…
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Artikel Jurnal
Experimental Study on Discharge Characteristic of Dielectric Material Induced by Space High-energy Proton Irradiation
Spacecraft are usually exposed to complex radiation environments during in-orbit flight and are prone to the accumulation of large amounts of electrical charges on the surface and inside the materials. Continuous charge accumulation can induce severe electrostatic discharge events, which can cause…
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Artikel Jurnal
Verification Study on Biological Effect of Ultra-high Dose Rate Proton at Spread-out Bragg Peak
Proton irradiation with an ultra-high dose rate, known as FLASH, is considered to have a protective effect on normal tissues in clinical practice. To better combine the advantageous technologies of spread-out Bragg peak (SOBP) and ultra-high dose rate irradiation, and to verify whether the proton…
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Artikel Jurnal
Research on Topology Optimization Design of Load-bearing Structure of Space Nuclear Reactor Power
The design of truss structures for space nuclear reactor power systems, a critical energy solution for deep-space exploration, faces two significant challenges under extreme launch loads (axial 6g, lateral 3g) while supporting critical components totaling ～9 850 kg, where the reactor core alone…
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Artikel Jurnal
Research on Structural Destructive Behavior of Space Nuclear Reactor Impact on Ground Surface
Space nuclear reactors have gained increasing importance in deep space exploration missions, with launch abort scenarios leading to ground surface impact representing a core consideration in reactor safety design. However, space nuclear reactors cannot incorporate the same degree of redundancy and…
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Artikel Jurnal
Size Effect on Charpy Impact Upper-shelf Energy of HT-9 Steel Based on Finite Element Method
The compact space inside a nuclear reactor greatly limits the arrangement of standard Charpy specimens for monitoring radiation embrittlement of reactor pressure vessels. The traditional standard specimens occupy a large amount of space in the irradiation supervision capsule, resulting in a…
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Artikel Jurnal
Study on SCC Propagation Behavior of a Dissimilar Metal Weld Joint of Nuclear Power Squib Valve in PWR Primary Water
This study aims to elucidate stress corrosion cracking (SCC) behavior in 316LN stainless steel (SS) and alloy 690 dissimilar metal weld joints of AP1000 pressurized water reactor (PWR) squib valves, critical for ensuring structural integrity in passive safety systems. It seeks to quantify crack…
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Artikel Jurnal
A Hybrid Physics-informed Surrogate Model Approach for Xenon-induced Power Oscillation in Nuclear Reactor
The prediction of xenon-induced power oscillations in nuclear reactors is crucial for operational safety and efficiency. However, existing methodologies are often constrained by limitations in model applicability across diverse conditions, high computational costs associated with high-fidelity…
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Artikel Jurnal
Target Production Calculation of SARAX Program and Validation Calculation of Target Loading Function
Isotope production is one of the main uses of research reactors, providing various types of radioisotopes for medical, industrial, scientific and other applications. In general, the higher the neutron flux level of a research reactor, the more favorable it is for radioisotope production. For the…
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Artikel Jurnal
Uncertainty Analysis Method of Physical-thermal Coupling Based on preCICE
In nuclear reactor systems, precise core modeling and uncertainty assessment are of critical importance for enhancing reactor safety, optimizing design margins, and advancing the development of next-generation reactor technologies. Existing multi-physics coupling platforms exhibit notable…
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Artikel Jurnal
Effect of Corrosion Product Deposition on Heat Transfer of Plate Fuel Assembly
Plate fuel assemblies are widely used in various small modular reactors and marine reactors due to its compact structural design and high heat transfer efficiency. The deposition of corrosion products on the surfaces of the fuel plates significantly increases the thermal resistance between the…
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Artikel Jurnal
Development of Non-rigid Model and Its Application in Performance Analysis of Dispersion Fuel
Fuel elements in nuclear reactors are subjected to complex thermomechanical conditions during service, especially under high burnup and high power operations. Traditional models, such as FuSPAC, adopt a rigid-body assumption for fuel pellets, which limit their ability to accurately describe the…
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Artikel Jurnal
Development and Application of System Analysis Code for Pebble-bed High-temperature Gas-cooled Reactor
The safety analysis of pebble-bed high-temperature gas-cooled reactor (PB-HTGR) relies heavily on high-fidelity system-level simulation tools. However, existing analysis codes face significant limitations in modeling the integrated transient response of the full primary circuit. Programs like…
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