Radiation Physics and Chemistry最新文献

{"title":"Dosimetric saturation effect study and correction calculation method of ionization chamber at ultra-high dose rate (FLASH)","authors":"Xinle Lang ,&nbsp;Zhenguo Hu ,&nbsp;Min Li ,&nbsp;Kai Tang ,&nbsp;Juan Li ,&nbsp;Faming Luo ,&nbsp;Zhiguo Xu ,&nbsp;Ruishi Mao ,&nbsp;Chuan Huang ,&nbsp;Jiali Fu ,&nbsp;Zulong Zhao ,&nbsp;Guoqing Xiao","doi":"10.1016/j.radphyschem.2024.112344","DOIUrl":"10.1016/j.radphyschem.2024.112344","url":null,"abstract":"<div><h3>Background</h3><div>and Purpose: FLASH radiotherapy has aroused strong interest among researchers, but how to monitor dose in real time and lack of generally accepted ion correction model are one of the challenges. This study is based on previous research work, the dosimetric verification of FLASH ionization chamber was performed using a 200 keV electron beam irradiation platform at an ultra-high dose rate. At the same time, the finite element program is written to analyze and calculate the ion correction factor. In addition, the results are compared with the calculation results of Boag model.</div></div><div><h3>Methods</h3><div>In this study, the pressure of the sensitive volume in the detector was adjusted to 16 mbar for the purpose of dosimetry of dose rates in excess of 100 Gy/s. In order to monitor the response of the detector, the beam frequency and pulse width were adjusted accordingly. However, due to the saturation effect of the ionization chamber, the processes of electron ion pair drift, attachment, recombination and diffusion in the sensitive volume were modelled on the basis of the relevant physical principles. Finally, the correction factor was calculated by the finite element analysis.</div></div><div><h3>Results</h3><div>The experimental results demonstrate that the FLASH ionization chamber is capable of meeting the requirements of dose measurement and beam monitoring of the electron beam at ultra-high dose rates. Furthermore, the analytical model is able to more accurately describe the saturation effect and calculate the correction factor.</div></div><div><h3>Conclusion</h3><div>In this paper, the method of reducing air pressure is employed for the purpose of monitoring the dose of ultra-high dose rate. Simultaneously, the finite element method was employed to analyze the physical process of electron–ion pairs within the chamber and to calculate the ion correction factor analytically. A comparison with the Boag model indicates that the proposed approach is effective. However, the results exhibit a certain degree of divergence from experimental outcomes. This discrepancy may be attributed to the influence of the input parameters, which require further calibration to enhance the accuracy and the robustness of the model.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112344"},"PeriodicalIF":2.8,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the shielding potential: Exploring photon and neutron attenuation in a novel lead-free XCr2Se4 chalcogenide Spinals alloys with MCNP 4C code","authors":"Emad A.M. Farrag ,&nbsp;M. Kh. Hamad ,&nbsp;A.M. Ali ,&nbsp;A.M. Abdelmonem ,&nbsp;Hussein Al-Taani","doi":"10.1016/j.radphyschem.2024.112337","DOIUrl":"10.1016/j.radphyschem.2024.112337","url":null,"abstract":"<div><div>The study covers shielding properties of three promising lead-free XCr₂Se₄ alloys, where X represents Mn, Cu, or Ag, across a spectrum of energies between 0.02 MeV and 15 MeV. MCNP4C was employed to simulate the mass attenuation coefficient (MAC) for the three selected alloys. After being prepared using the conventional solid-state reaction method, the samples displayed densities ranging from 5.45 g cm⁻³to 6.22 g cm⁻³. The simulated results obtained from the MCNP4C are then benchmarked with data obtained using different software such as Phy-X, Py-MLBUF, EPIXS, and GRASP. Upon comparing the acquired results with the Phy-X data, a notable correlation was observed with a relative difference ranging from 0.11% to 8.57%. The accuracy of the simulated data was additionally validated through the Kolmogorov-Smirnov test. From the simulated MAC, different ionizing radiation shielding properties including linear attenuation coefficient (LAC), half-value layer (HVL), mean-free path (MFP), transmission factor (TF), radiation protection efficiency (RPE), and fast neutron removal cross section (FNRCS) were calculated to provide a comprehensive analysis of the samples' efficacy in dealing with different types of radiation. The LAC for neutrons at different energies is also examined. HVL analysis indicates the radiation-blocking capacity of the samples. The TF shows the alloys’ ability to either permit or restrain the transfer of radiation. Additionally, RPE and FNRCS give indication of the shielding potential of the studied samples. This study is important for nuclear physicians and researchers and serves as useful data for the development of superior shielding materials.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112337"},"PeriodicalIF":2.8,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Computational assessment of occupational exposure during hepatic chemoembolization","authors":"Thays Maria P. Machado ,&nbsp;Monique F. Silva ,&nbsp;Evelyn L. de Oliveira ,&nbsp;Isabella P. Tobias ,&nbsp;William S. Santos ,&nbsp;Lucio P. Neves ,&nbsp;Ana P. Perini","doi":"10.1016/j.radphyschem.2024.112296","DOIUrl":"10.1016/j.radphyschem.2024.112296","url":null,"abstract":"<div><div>One of the treatment alternatives for hepatocellular carcinoma (HCC) is transarterial chemoembolization (TACE). During this procedure, occupationally exposed individuals (OEIs) remain in the room and, therefore, are exposed to radiation. The objective of this work was to evaluate the equivalent and effective doses that OEIs received from TACE procedure of HCC. The evaluation was carried out by means of conversion coefficients for equivalent (<em>CC</em>[<em>H</em>_<em>T</em>]) and effective (<em>CC</em>[<em>E</em>]) doses. The study was conducted based on computer simulation, using the Monte Carlo N-Particle code, version 6.2. An interventional radiology (IR) room was built containing 3 male virtual phantoms (MASH3) to represent the main physician, the assistant, and the patient. The scenarios varied according to the posteroanterior (PA), cranial, 12° (CRA12), caudal, 12° (CAU12) and left anterior oblique, 26° (LAO26) projections and different tube voltage values (70 and 80 kV) with the field size fixed at 35 × 35 cm². Furthermore, personal protective equipment (PPE) and collective protective equipment (CPE) were incorporated into the scenarios to evaluate the dose reduction on the OIEs. It was observed that the highest dose values received by the OEIs were for the LAO26 projection when an 80 kV tube voltage was applied. The <em>CC</em>[<em>E</em>] values were reduced by up to 95%, while the <em>CC</em>[<em>H</em>_<em>T</em>] values saw a reduction of up to 99% with the use of PPEs, for the main physician. Considering the scenario without the use of PPEs, the absolute effective dose received by the main physician was 266.71 μSv and by the assistant 30.29 μSv. When all PPEs and CPEs were used, the effective doses for these professionals were reduced to 24.12 μSv (main physician) and 1.16 μSv (assistant). The significant dose reduction achieved with protective equipment underscores the critical importance of consistently using these devices.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112296"},"PeriodicalIF":2.8,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dosimetric evaluation of a chilled X-ray irradiator for high throughput insect sterilization","authors":"Andrew G. Parker ,&nbsp;Jiaqi Lyu ,&nbsp;William McLaughlin","doi":"10.1016/j.radphyschem.2024.112289","DOIUrl":"10.1016/j.radphyschem.2024.112289","url":null,"abstract":"<div><div>The current trend away from isotopic irradiators for the Sterile Insect Technique (SIT) means that alternative systems are required. This paper describes the dosimetric assessment of a Precision X-Ray X-Rad 320 system with an integrated chilling system (SIT Module) suitable for the irradiation of chill immobilized adult mosquitoes. This system is capable of irradiating a load volume of approximately 4 L whilst maintaining a suitable temperature to maintain the insects immobile. Dose rates, dose uniformity ratios and estimated weekly throughput are presented for various configurations and energies. The throughput for chilled adult mosquitoes is sufficient for currently operational or planned mosquito sterile insect programs.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112289"},"PeriodicalIF":2.8,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of excitation functions of 127I(p,xn) 121,122, 123, 125,127Xe reactions, with particular reference to the production of 127Xe and 123I for medical use","authors":"M. Eman ,&nbsp;N. Amjed ,&nbsp;A. Naz ,&nbsp;A.M. Wajid ,&nbsp;Samar ,&nbsp;M. Hussain ,&nbsp;S.M. Qaim","doi":"10.1016/j.radphyschem.2024.112331","DOIUrl":"10.1016/j.radphyschem.2024.112331","url":null,"abstract":"<div><div>Cross section data for the formation of ^{121,122,123,125,127}Xe via proton induced reactions on ¹²⁷I were critically analyzed. Three nuclear model codes (TALYS 1.9, ALICE-IPPE, and EMPIRE 3.2) were used to ensure the consistency and reliability of the experimental data. Utilizing a well-developed evaluation methodology, a recommended fit for each excitation function was obtained, based on theoretical predictions of nuclear models and experimental cross sections. By using the recommended/reference results, thick target yields were calculated for each production route and its associated impurity reactions. The indirect production of the radionuclides ^{121,122,123,125}I was explored. Special attention was paid to standardization of cross section data for the production of the medically important radionuclides ¹²⁷Xe and ¹²³I via the routes ¹²⁷I(p,n)¹²⁷Xe and ¹²⁷I(p,5n)¹²³Xe(EC, β+)¹²³I, respectively.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112331"},"PeriodicalIF":2.8,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shielding characteristics of a new epoxy resin reinforced by PbO nanoparticles and PbO micro for protection against X-ray and investigation of their cytotoxicity effects and photocatalytic activity","authors":"Atefeh Omidtorshiz ,&nbsp;Mohammad Reza Benam ,&nbsp;Mehdi Momennezhad ,&nbsp;Zahra Sabouri ,&nbsp;Majid Darroudi","doi":"10.1016/j.radphyschem.2024.112324","DOIUrl":"10.1016/j.radphyschem.2024.112324","url":null,"abstract":"<div><div>In this work, for the first time, lead oxide nanoparticles (PbO-NPs) were synthesized using <em>Trigonella feonumgraecum</em> plant seeds as a stabilizer and Pb(NO₃)₂ salt as a lead precursor. The results of the XRD pattern displayed the synthesized NPs have an orthorhombic crystalline structure. According to FESEM images, the NPs had a mean size of about 18.62 nm with a spherical morphology. Also, the cytotoxicity of NPs was evaluated on the Hep G2 cancer cell line, and the IC₅₀ value was reported as 267.07 μg/mL. Next, the photocatalytic performance of the synthesized PbO-NPs was investigated for removing methylene orange (MO) pigment under UVA light, which led to the destruction of about 94% after 120 min. Finally, to investigate the protective properties of PbO-NPs against X-ray, a polymer nanocomposite of epoxy resin/PbO-NPs was prepared with different weight percentages. In the same way, other samples were also prepared, and then their ability to attenuate X-ray was studied with an X-ray tube with a voltage of 52 kV for the palm and 80 kV for the thigh of an average person, respectively. The measurement results show that with the increasing weight percentage of the fillers, the samples' linear and mass attenuation coefficient increases, which means an increase in the efficiency of the samples in X-ray attenuation. Generally, epoxy resin/PbO-NPs samples show a better effect than other samples. Therefore, these types of shields can attract more attention due to their lightness, cost-effectiveness, and far fewer environmental hazards than common lead shields.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112324"},"PeriodicalIF":2.8,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shape memory characteristics of injection molded, cross-linked all-polyethylene composites","authors":"Balázs Tatár ,&nbsp;Eszter Tóth ,&nbsp;Kolos Molnár ,&nbsp;László Mészáros","doi":"10.1016/j.radphyschem.2024.112290","DOIUrl":"10.1016/j.radphyschem.2024.112290","url":null,"abstract":"<div><div>In this study, we investigated the shape memory properties of a novel self-reinforced polymer composite (SRPC). Chopped Dyneema® SK76 fibers were mixed with high-density polyethylene (HDPE) resin, and samples were produced by injection molding. To allow the fibers to keep their shape and reinforce effectively, we cross-linked them with gamma irradiation (100, 200, and 300 kGy absorbed doses). In the second step of irradiation, we irradiated the composites with doses of 50, 100, 150, and 200 kGy to give them shape memory properties. Soxhlet extractions, differential scanning calorimetry, and scanning electron microscopy revealed that the fibers cross-linked and kept their structural integrity through processing. We confirmed the reinforcing effect of the fibers with flexural tests and by dynamic mechanical analysis. In free recovery experiments, samples had recovery and fixity ratios above 79%. With the highest dose, recovery stress increased by 26%. We showed the viability of this novel method of self-reinforcement in the production of shape memory polymers (SMPs) with improved characteristics.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112290"},"PeriodicalIF":2.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examination of radiation shielding features of Bi2O3 modified Lithium Zinc Silicate glass system","authors":"Jaber Alyami ,&nbsp;M.I. Sayyed ,&nbsp;Yas Al-Hadeethi ,&nbsp;Othman A. Fallatah ,&nbsp;Mohammad Bahmaid","doi":"10.1016/j.radphyschem.2024.112291","DOIUrl":"10.1016/j.radphyschem.2024.112291","url":null,"abstract":"<div><div>In this study, several radiation shielding characteristics of Bi₂O₃ modified Lithium Zinc Silicate glass systems were reported using the Phy-X program. The mass attenuation coefficient (MAC) demonstrates a substantial energy dependency only at low energy range (0.284 MeV &lt; E &lt; 0.662 MeV), however it exhibits a slight energy dependency at high energies. It was shown that the transmission factor (TF) increases with energy, suggesting that at higher energies, more gamma rays can pass through the lithium zinc Silicate glasses. We reported the transmission factor (TF) at different thicknesses and we found that the TF at 0.347 MeV for Li25Bi0 varies between 0.92 and 0.77 for thicknesses of 0.3 and 0.9 cm respectively. Also, Li5Bi20's TF is lower than Li25Bi0's, which means that the effectiveness of the samples as shields will increase with the quantity of Bi₂O₃ present. The TVL is decreased by the introduction of Bi₂O₃, with Li5Bi20 possessing the smallest TVL and being regarded as the superior absorber. The lowest TVL recorded for selected glasses are 7.608, 3.189, 2.188, 1.677 and 1.427 cm for Li25Bi0 to Li5Bi20 respectively. The TVL results showed that at 0.284 MeV, the TVL for the Li25Bi0 is 5.33 times the TVL of Li5Bi20. At 0.347 MeV, the TVL of Li25Bi0 is 4.08 times the TVL of Li5Bi20, while at 0.662 MeV the TVL of Li25Bi0 is 2.36 times the TVL of Li5Bi20. We compared the effective atomic number (Z_eff) for the selected glasses with other materials and we found that all these glasses have higher Z_eff than ordinary concrete, and RS-253-G18, except Li25Bi0 sample which shows lower Z_eff than RS-253-G18.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112291"},"PeriodicalIF":2.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of mechanical and radiation shielding properties of Sm–Sm2O3 reinforced Al–B4C composite","authors":"Yasin Gaylan ,&nbsp;Ilker Emin Dag ,&nbsp;Seyit Caglar ,&nbsp;Baris Avar","doi":"10.1016/j.radphyschem.2024.112325","DOIUrl":"10.1016/j.radphyschem.2024.112325","url":null,"abstract":"<div><div>In this study, Al–20%B₄C-x%(Sm, Sm₂O₃) (x = 1, 3, and 5) composites were prepared using mechanical alloying to investigate their neutron shielding and mechanical properties. After pelletizing and sintering the prepared powder composites, their microstructures were characterized using X-ray diffraction, energy-dispersive X-ray spectroscopy, and scanning electron microscopy. Hardness, density, and corrosion tests were performed on the composites. Thermal and fast neutron shielding properties were calculated using the MCNP simulation code. Experimental measurements of neutron shielding were carried out using an Am–Be neutron source. Experimental results showed that 5% Sm-reinforced composites exhibited better neutron shielding than Sm₂O₃-reinforced composites at all doping ratios. Simulation calculations indicated that the highest thermal neutron shielding rate was observed in Sm-reinforced composites, while the highest fast neutron shielding rate was observed in 5% Sm₂O₃-reinforced composites. This research provides important data for researchers interested in developing thermal and fast neutron shielding materials.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112325"},"PeriodicalIF":2.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlation of proton conductivity and free volume in sulfonated polyether ether ketone electrolytes: A positron annihilation lifetime spectroscopy study","authors":"Muhammet Lahmuni ,&nbsp;Mesut Yılmazoğlu ,&nbsp;Ufuk Abaci ,&nbsp;Ozan Coban ,&nbsp;Ayse Yumak Yahsi ,&nbsp;Cumali Tav ,&nbsp;Ugur Yahsi","doi":"10.1016/j.radphyschem.2024.112327","DOIUrl":"10.1016/j.radphyschem.2024.112327","url":null,"abstract":"<div><div>Proton-conducting polymers play a pivotal role in clean energy technologies and various industrial applications, with a significant emphasis on enhancing energy efficiency and minimizing environmental impact. Sulfonated polyether ether ketone (SPEEK), which is renowned for its proton conductivity, has emerged as a key material in electrochemical processes, notably in proton exchange membrane (PEM) fuel cells. This study investigated the proton conductivity and dielectric behavior of SPEEK electrolytes at varying degree of sulfonation (DS) of 65% and 80%, correlating these properties with free volume profiles determined by positron annihilation lifetime spectroscopy (PALS). The SPEEK-65 and SPEEK-80 electrolytes were prepared via a controlled sulfonation process and characterized by FTIR, TGA, and SEM analyses. Proton conductivity and dielectric measurements were conducted at temperatures ranging from 300 to 370 K and frequencies ranging from 20 Hz to 1 MHz. The results revealed that SPEEK-80 exhibited a maximum proton conductivity of 3.4 × 10⁻² S/m at 300 K and 1 MHz, which was significantly greater than the 4.38 × 10⁻³ S/m observed for SPEEK-65 under the same conditions. PALS analysis demonstrated a notable increase in free volume with increasing DS, with SPEEK-80 showing a higher o-Ps lifetime and intensity, indicating larger free volume sizes and fractions. These findings underscore the critical interplay between DS, free volume, and proton conductivity, offering insights into optimizing SPEEK-based electrolytes for advanced electrochemical applications.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112327"},"PeriodicalIF":2.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}