Radiation Physics and Chemistry最新文献

{"title":"EDXRF analysis of Gd-based Tumoral biomarker using a collimated 241Am source in a Bioequivalent phantom","authors":"J. Sagardia ,&nbsp;M. Valente ,&nbsp;F. Mattea ,&nbsp;N. Villar ,&nbsp;C. Toro ,&nbsp;F. Jerez ,&nbsp;M. Flores ,&nbsp;R. Figueroa","doi":"10.1016/j.radphyschem.2025.113017","DOIUrl":"10.1016/j.radphyschem.2025.113017","url":null,"abstract":"<div><div>A proof-of-concept is presented for an energy-dispersive X-ray fluorescence (EDXRF) system employing a 93 mCi ²⁴¹Am source (59.5 keV) to excite gadolinium (Gd) biomarkers embedded in water-equivalent phantoms. Monte Carlo simulations, based on adapted PENELOPE routines (10⁹ primary histories), were used to optimize both source and detector collimation and to predict absorbed-dose distributions. For a 1 cm-diameter target located at 5 cm depth, simulations showed that a conical collimation geometry applied to both source and detector yields a signal-to-noise ratio (SNR) of 6000 ± 381 % at 0.5 mmol mL⁻¹ Gd and 400 ± 95 % at 0.063 mmol mL⁻¹. These represent 2-fold and 3.4-fold improvements, respectively, compared to single-collimator and fully divergent setups. Experimental validation confirmed these trends and established detection limits below 0.031 mmol mL⁻¹ (approximately 0.5 % w/w, equivalent to one-sixteenth the commercial OMNISCAN concentration). Tumor-sized volumes (≥1 cm) infused with ≥1 % w/w Gd were reliably detected at 5 cm depth, while keeping the phantom-averaged absorbed dose below 1 mGy during a 15-min acquisition. These findings demonstrate that a compact, radioisotope-based confocal EDXRF system can achieve clinically meaningful Gd sensitivity with sub-centimeter spatial resolution, establishing a foundation for accelerated imaging using large-area detector arrays.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 113017"},"PeriodicalIF":2.8,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331108","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":"Application of Richardson-Lucy deconvolution to images obtained from GEM scintillation readout by a commercial Hamamatsu S13361-3050 SiPM unit","authors":"C.M.B. Monteiro,&nbsp;J.P.G. Neves,&nbsp;R.D.P. Mano","doi":"10.1016/j.radphyschem.2025.113061","DOIUrl":"10.1016/j.radphyschem.2025.113061","url":null,"abstract":"<div><div>The Richardson-Lucy deconvolution algorithm was applied to enhance image quality in gas scintillation-based imaging systems using a GEM amplification microstructure coupled with a Hamamatsu S13361-3050 SiPM array photosensor. This study addressed the challenges posed by image degradation due to electron diffusion and light spread, which result in blurring and reduced position resolution. Systematic evaluations of grid refinement, Gaussian filtering, and Richardson-Lucy deconvolution demonstrated significant improvements in position resolution, reducing the mean position resolution from 5.07 ± 0.07 mm to 2.54 ± 0.04 mm. The results highlight the effectiveness of Richardson-Lucy deconvolution in mitigating image blurring and enhancing resolution, leading to improved scintillation-based imaging systems across various applications.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 113061"},"PeriodicalIF":2.8,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331109","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":"Aluminium fast neutron leakage spectrum validation","authors":"Martin Schulc ,&nbsp;Tomáš Czakoj ,&nbsp;Evžen Novák ,&nbsp;Alena Krechlerová ,&nbsp;Adam Greš ,&nbsp;Jan Šimon ,&nbsp;Bohumil Jánský ,&nbsp;Jiří Rejchrt ,&nbsp;Zdeněk Matěj ,&nbsp;Michal Košťál","doi":"10.1016/j.radphyschem.2025.113063","DOIUrl":"10.1016/j.radphyschem.2025.113063","url":null,"abstract":"<div><div>Aluminium is a crucial material in the nuclear industry, valued for its reliability over long periods of irradiation. The manuscript focuses on validating aluminium neutron transport libraries. Validation experiments were performed on an aluminium block with a central hole. The block was assembled from smaller aluminium plates. The experiment involved activating samples at different positions and measuring the fast neutron spectrum in the energy range of 0.1 MeV–1.3 MeV by means of a hydrogen-filled proportional detector and in the energy range of 1 MeV–12 MeV using a stilbene scintillation detector. The dosimetric reactions studied for validation included ⁵⁸Ni(n,p)⁵⁸Co, ⁶³Cu(n,γ)⁶⁴Cu, ¹⁸¹Ta(n,γ)¹⁸²Ta, ⁹²Mo(n,p)^92mNb, ^natTi(n,X)⁴⁶Sc, and ^natTi(n,X)⁴⁷Sc. All experimental data were compared with MCNP6.2 simulations using the ENDF/B-VIII.0, JEFF-3.3, and JENDL-5 neutron transport libraries. Activation cross sections were taken from the IRDFF-II library. Regarding activation reactions, the results are in good agreement with simulations, independent on the library. The JEFF-3.3 and ENDF/B-VIII.0 fast neutron flux calculations are similar. All libraries provided results within two sigma uncertainty, except for JENDL-5 in the energy range of 1.8–3.4 MeV, and ENDF/B-VIII.0 (JEFF-3.3) in the region of 1.06–1.3 MeV.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 113063"},"PeriodicalIF":2.8,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253944","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":"Deep learning-based segmentation of Jaszczak ACR phantom images for optimized Radium-223 dosimetry","authors":"Cristian Felipe Griebler ,&nbsp;Leanderson Pereira Cordeiro ,&nbsp;Luis Felipe Lima ,&nbsp;Vagner Bolzan ,&nbsp;Vitor Dutra ,&nbsp;Lidia Vasconcellos De Sá ,&nbsp;Daniel Alexandre Baptista Bonifacio","doi":"10.1016/j.radphyschem.2025.113028","DOIUrl":"10.1016/j.radphyschem.2025.113028","url":null,"abstract":"<div><div>Precise and personalized absorbed dose estimation in radionuclide therapy is crucial for optimizing treatment efficiency while minimizing harm to healthy tissues. Radium-223 dichloride (Ra-223), an alpha emitter used in treating metastatic castration-resistant prostate cancer, has shown positive results in extending patient survival. However, the current practice of uniform Ra-223 activity administration based solely on patient weight can lead to suboptimal treatment outcomes. Treatment efficacy evaluation involves quantifying activity and absorbed dose through image quality analysis, revealing potential areas for optimization. This work introduces an innovative approach that integrates a deep learning-based model for automated segmentation of the Jaszczak ACR phantom—a tool for image quality analysis in nuclear medicine—with Monte Carlo simulation for dosimetry. The model exhibits efficient segmentation, surpassing 83.7 % in class-wise Dice coefficients, offering a time-efficient alternative to manual segmentation. The study highlights the superior performance of the 89 keV energy window in image quality parameters, emphasizing its role in lesion detection. Additionally, it addresses challenges in achieving accurate quantitative outcomes in nuclear medicine applications, particularly in Ra-223 therapy. These insights contribute to refining dosimetry protocols for Ra-223, enhancing the precision of quantitative outcomes in nuclear medicine. The practical implications extend to improving daily routines for clinical professionals in nuclear medicine applications, showcasing the potential of advanced imaging techniques and computational tools in optimizing Ra-223 therapy.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 113028"},"PeriodicalIF":2.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263664","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":"Utilization of bio-modified concrete composites for gamma radiation attenuation through recycled bone integration","authors":"Esraa Al-Sarray","doi":"10.1016/j.radphyschem.2025.112996","DOIUrl":"10.1016/j.radphyschem.2025.112996","url":null,"abstract":"<div><div>The potential of recycled bone ash as a sustainable additive for gamma radiation shielding concrete was explored. Concrete specimens were formulated with varying bone ash concentrations, and their efficacy in radiation mitigation properties were assessed “using Phy-X/PSD software”. A control mix (A) was prepared with a cement:sand:granite ratio of, (1 kg) and (0.5 kg), and (1 kg). Bone ash was introduced in experimental mixes (B, C, and D) at levels of (0.05 kg) and ' (0.1 kg), and (0.15 kg)', In sequence, while adjusting cement content to maintain a constant total aggregate mass. If the ratio of water to cement is fixed at 0.5 consistently applied. Density measurements indicated a reduction in density from ' (2.33 g/cm³ (A), until Sample (2.22 g/cm³ (D)', with increasing bone ash. The linear attenuation coefficient in this study (LAC) was found to be 0.662 MeV showed a corresponding decrease, with values ranging from ' (0.181 cm⁻¹ (A)' The sample' (0.171 cm⁻¹ (D)'. This study contributes to the investigation of waste valorization for radiation shielding applications and underscores the need for continued research into locally sourced materials to achieve sustainable waste management goals.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 112996"},"PeriodicalIF":2.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242738","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":"A fast image recognition method of mobile point radioactive source based on sequential bayesian analysis","authors":"Meng Huang,&nbsp;Jianyu Zhu","doi":"10.1016/j.radphyschem.2025.113060","DOIUrl":"10.1016/j.radphyschem.2025.113060","url":null,"abstract":"<div><div>In the fields of astronomical observation, homeland security, medical diagnosis and arms control verification, the monitoring and imaging of mobile point radioactive sources is common. In many cases, the number of its rays entering the detector is small and may be even smaller than that of the background signals. Traditional radiation image recognition requires accumulating a certain number of detection events before recognition, which is not suitable to the fast recognition of the above mobile point radioactive sources. In this paper, a fast image recognition method of the mobile point radioactive source based on the sequential Bayesian analysis is proposed. The method can analyze the positions of the ray particles in the radiation image one by one according to the time sequence, and fast determine the existence of the mobile point radioactive source. First, the theoretical framework of the method is built. Second, the feasibility of the method is analyzed by means of numerical simulation. The simulation results show that, the method is suitable to the image recognition of the mobile point radioactive sources with different motion states. At last, the practical application scenarios of the method are analyzed. The calculation results show that, the method is suitable to the image recognition of the mobile point radioactive sources under the conditions of extremely low signal-to-noise ratios and waiting for the ray signals of the radioactive sources for a long time.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 113060"},"PeriodicalIF":2.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263661","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":"Effects of barium concentration on the gamma ray and neutron shielding properties of Sm3+ doped (barium) phosphate glass ((100 − y)[(50P2O5)–(50-xNa2O)–(xBaO)]–ySm2O3)","authors":"Auwalu Baballe ,&nbsp;Yahaya Saadu Itas ,&nbsp;Mayeen Uddin Khandaker ,&nbsp;Ali El-Rayyes ,&nbsp;Faiza Benabdallah","doi":"10.1016/j.radphyschem.2025.113055","DOIUrl":"10.1016/j.radphyschem.2025.113055","url":null,"abstract":"<div><div>This work investigated the effects of barium ions on radiation shielding properties of samarium-doped barium phosphate (SBPS) glasses with the chemical composition of (100 − y)[(50P₂O₅)–(50-xNa₂O)–(xBaO)]–ySm₂O₃, where x = 20, 25, 30, 35 and 40 mol %. The corresponding samples coded SBPS-1, SBPS-2, SBPS-3, SBPS-4 and SBPS-5, respectively were prepared using the melt quenching technique. Radiation shielding parameters such as mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), half value layer (HVL), effective atomic number (Z_eff) and fast neutron removal cross section (ΣR) were computed using Phy-X/PSD and Monte Carlo simulation tools, in the energy range between 0.015 MeV and 15 MeV. The results revealed that mass attenuation coefficient increased significantly from 22.088 cm²/g (SBPS-1) to 43.262 cm²/g (SBPS-5) at 0.015 MeV. Based on these, SBPS-5 glass having the greatest BaO content, exhibited the highest values of MAC, LAC, Z_eff, leading to improved gamma-ray shielding performance. Furthermore, the capacity of the glasses in shielding of fast neutrons was assessed using the fast neutron removal cross-section (Σ_R) parameter. Results showed that BaO incorporation substantially improved neutron shielding efficiency of (100 − y)[(50P₂O₅)–(50-xNa₂O)–(xBaO)]–ySm₂O₃)). Notably, SBPS-5 glass revealed higher potential for gamma ray shielding, while SBPS-1 sample exhibits superior neutron shielding features. Therefore, the current glass systems can be utilized in radiation shielding applications. This research recommends further validation works to specifically examine the thermal stabilities of the current glasses, using high radiation doses. Extensive validation of the results using other sophisticated methods is also recommended.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 113055"},"PeriodicalIF":2.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263655","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":"Effect of Ni doping on the structural, magnetic, and electrochemical properties of BiMnFe2O6 for energy storage applications","authors":"Jessada Khajonrit ,&nbsp;Thongsuk Sichumsaeng ,&nbsp;Wittawat Saenrang ,&nbsp;Suchunya Wongprasert ,&nbsp;Nantawat Tanapongpisit ,&nbsp;Supree Pinitsoontorn ,&nbsp;Pinit Kidkhunthod ,&nbsp;Narong Chanlek ,&nbsp;Poramed Wongjom ,&nbsp;Santi Phumying ,&nbsp;Santi Maensiri","doi":"10.1016/j.radphyschem.2025.113050","DOIUrl":"10.1016/j.radphyschem.2025.113050","url":null,"abstract":"<div><div>In this work, novel BiMn_1-xNi_xFe₂O₆ electrode materials with x = 0, 0.05, 0.1, 0.2, and 0.3 were successfully prepared by the solid-state reaction method and characterized by XRD, SEM, BET, and VSM techniques. The influences of Ni doping on the structural, magnetic, and electrochemical properties of BiMnFe₂O₆ materials were studied for the first time, representing a new approach to develop multifunctional properties of this material. The evidence of Mn⁺³, Ni⁺² and Fe⁺³, and Bi³⁺ in the structure was confirmed by advanced synchrotron-based techniques, including X-ray absorption spectroscopy (XAS) and X-ray photoelectron spectroscopy (XPS), respectively. Increasing Ni content resulted in improved paramagnetic behavior, with a maximum magnetization value of 6.77 emu/g at x = 0.3. The specific surface area of the prepared samples reached 1.89 m²/g at x = 0.3, resulting in a maximum specific capacitance of 209.3 F/g at a current density of 1 A/g. In addition, an asymmetric supercapacitor using AC//BiMn_0·7Ni_0·3Fe₂O₆ was developed, which achieved an energy density of 8.02 Wh/kg and a power density of 752.7 W/kg with a high charge–discharge stability of 88.7 % after 1000 cycles at 10 A/g. The results indicated that Ni-doped BiMnFe₂O₆ was a promising high-performance electrode material for practical application energy storage devices.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 113050"},"PeriodicalIF":2.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253942","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":"Microdosimetric characteristics and effective RBE value evaluation of the beam of Taiwan's first heavy ion therapy facility","authors":"Li-Ya Lin ,&nbsp;Chih-Chien Nieh ,&nbsp;Keng-Li Lan ,&nbsp;Ching-Sheng Liu ,&nbsp;Ching-Han Hsu ,&nbsp;Rong-Jiun Sheu ,&nbsp;Fang-Yuh Hsu","doi":"10.1016/j.radphyschem.2025.113058","DOIUrl":"10.1016/j.radphyschem.2025.113058","url":null,"abstract":"<div><div>The effectiveness of heavy ion therapy has attracted global attention. Taiwan's first heavy ion therapy center, which has started clinical treatments in May 2023, is the 14th operational heavy ion therapy center in the world. This study used a tissue-equivalent proportional counter (TEPC) to assess the microdosimetric parameters of three different energy beams at the heavy ion facility, in order to evaluate representative beam quality indicators such as the relative RBE (Radiation Biological Effectiveness) of the heavy ion radiation field. The maximum absorbed dose for the three energy beams were found to occur at the d_max (Bragg peak) position. After the d_max, secondary particles continue to deposit energy at deeper depths, but clinical treatment planning systems may overlook the dose contribution from these secondary particles. The effective RBE values of all three energy beams at their respective d_max positions were found to be not necessarily the highest. The effective RBE values for the evaluated heavy ion therapy facility ranged from approximately 3.1 to 3.4. The evaluation methods and related results of this study can serve as a reference for dose assessment in clinical heavy ion therapy centers.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 113058"},"PeriodicalIF":2.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253946","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":"Comparison of benchtop devices for X-ray fluorescence imaging based on scanning and full-field techniques","authors":"T. Trojek,&nbsp;P. Novotný","doi":"10.1016/j.radphyschem.2025.113062","DOIUrl":"10.1016/j.radphyschem.2025.113062","url":null,"abstract":"<div><div>In this paper, several benchtop XRF imaging techniques and setups were compared, most of which are found in laboratories for rapid, preliminary composition determination and elemental distributions. The advantages and disadvantages of individual XRF techniques are introduced. The techniques tested in the comparison include macro-XRF scanning with a miniature X-ray tube, micro-XRF scanning with a focused X-ray beam of an X-ray tube with polycapillary optics, and full-field XRF with a spectrometric pixel detector. Nevertheless, synchrotron-based XRF techniques are not considered. The experiments were performed on glass samples which correspond to materials with an intermediate effective atomic number, along with, containing an abundance of elements whose X-ray lines span nearly the whole energy range of XRF. The standard reference material NIST 1412 was used to determine the sensitivities of the XRF setups. A glass pendant with an enameled decoration served as a representative artifact for the demonstration of the individual XRF imaging techniques. A simple Monte Carlo simulation was introduced for calculating expected XRF images for short acquisition times. This method was applied to obtain simulated on-the-fly XRF images. Macro-XRF scanning with small X-ray tubes is efficient with collimators down to approximately 0.5 mm. In order to achieve sufficient sensitivity even for narrower beams, X-ray tubes with polycapillary optics must be used. The sensitivities for micro-XRF scanning and full-field XRF imaging with parallel optics are quite similar when the X-ray sources have the same power.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 113062"},"PeriodicalIF":2.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144272502","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}