Atom Indonesia最新文献

Non-Dimensional Number Analysis on Natural Circulation Flow Changes Inside Straight-Pipe Heat Exchanger of Water Cooling Tank in FASSIP-02 Test Loop FASSIP-02 试验回路中水冷箱直管热交换器内自然循环流动变化的非量纲数分析

IF 0.6

Atom Indonesia Pub Date : 2024-08-09 DOI: 10.55981/aij.2024.1387

E. P. Arista, D. Deendarlianto, A. S. Al-amin, P. H. Setiawan, H. A. Gunawan, M. Juarsa

{"title":"Non-Dimensional Number Analysis on Natural Circulation Flow Changes Inside Straight-Pipe Heat Exchanger of Water Cooling Tank in FASSIP-02 Test Loop","authors":"E. P. Arista, D. Deendarlianto, A. S. Al-amin, P. H. Setiawan, H. A. Gunawan, M. Juarsa","doi":"10.55981/aij.2024.1387","DOIUrl":"https://doi.org/10.55981/aij.2024.1387","url":null,"abstract":"The FASSIP-02 test loop is a large-scale experimental facility that investigates natural circulation flow rate phenomena to improve passive safety systems of nuclear reactors. Heat transfer in the piping system will result in pattern and magnitude of the natural circulation flow being formed, so it is essential to investigate the heat dissipation capabilities, which will later be applied in nuclear passive cooling systems. The heat transfer behavior of passive cooling systems in large-scale facilities can be quantified with non-dimensional numbers. This research analyzes heat transfer in a straight heat exchanger by comparing non-dimensional numbers based on the Dittus-Boetler and McAdams correlation with the correlation generated from experimental data. The analysis results show that the predicted McAdams correlation with the experimental correlation is higher than 83 %. Meanwhile, Dittus Boetler's correlation prediction with the experimental correlation is smaller than 71 %. The dominance of momentum diffusivity in the cooling process shows the characteristics of thermal behavior with the Prandtl number. In addition, all-natural circulation flow variations occur in a turbulent flow regime that increases with increasing water temperature in the heating tank.","PeriodicalId":8647,"journal":{"name":"Atom Indonesia","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141924976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Tumor Control Probability and Normal Tissue Complication Probability of Breast Cancer Treatment Plan in Post Mastectomy Radiation Therapy 乳腺癌切除术后放射治疗方案的肿瘤控制概率和正常组织并发症概率评估

IF 0.6

Atom Indonesia Pub Date : 2024-08-08 DOI: 10.55981/aij.2024.1423

S. Herwiningsih, F. Yuana, R. Latifah, A. Hidayat, D. P. Rahmahtullah, I. Alviani, F. K. Hentihu

{"title":"Evaluation of Tumor Control Probability and Normal Tissue Complication Probability of Breast Cancer Treatment Plan in Post Mastectomy Radiation Therapy","authors":"S. Herwiningsih, F. Yuana, R. Latifah, A. Hidayat, D. P. Rahmahtullah, I. Alviani, F. K. Hentihu","doi":"10.55981/aij.2024.1423","DOIUrl":"https://doi.org/10.55981/aij.2024.1423","url":null,"abstract":"Radiotherapy has been widely used to treat cancer, including breast cancer treatment, which can be given after patients undergo mastectomy procedures. This study aims to evaluate tumor control probability (TCP) and normal tissue complication probability (NTCP) of three-dimensional conformal radiation therapy (3DCRT) and intensity modulated radiation therapy (IMRT) treatment planning in post-mastectomy breast cancer radiation therapy. Twenty clinical breast cancer treatment plans delivered using 3DCRT were evaluated retrospectively. The IMRT plans were created for the same patients. The dose-volume histograms of each plan were extracted from the Treatment Planning System (TPS) computer which were then used to compute the TCP and NTCP for each plan. The TCP was calculated using the Poisson model and the NTCP was calculated using the Lyman-Kutcher-Burman (LKB) model. The NTCP was calculated for normal lung tissue, heart, esophagus, and spinal cord. The results show that the TCP of the 3DCRT and IMRT plans are not significantly different, with a value of above 99 %. The NTCP of the left lung is lower in the IMRT plans while the NTCP of the esophagus is lower in the 3DCRT plans. The NTCP for the heart, spinal cord, and right normal lung are zero in all plans.","PeriodicalId":8647,"journal":{"name":"Atom Indonesia","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141925586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Atmospheric Nitrogen Plasma-Induced for Embedding NH2@Cubic-Bicontinuous Mesoporous Silica as Uranium (VI) Adsorbent Candidate in Seawater 大气氮等离子体诱导嵌入 NH2@ 立方双孔介孔二氧化硅作为海水中铀 (VI) 的候选吸附剂

IF 0.6

Atom Indonesia Pub Date : 2024-08-08 DOI: 10.55981/aij.2024.1301

N. S. Pamungkas, D. Wongsawaeng, D. Swantomo, K. Kamonsuangkasem, S. Chio-Srichan

{"title":"Atmospheric Nitrogen Plasma-Induced for Embedding NH2@Cubic-Bicontinuous Mesoporous Silica as Uranium (VI) Adsorbent Candidate in Seawater","authors":"N. S. Pamungkas, D. Wongsawaeng, D. Swantomo, K. Kamonsuangkasem, S. Chio-Srichan","doi":"10.55981/aij.2024.1301","DOIUrl":"https://doi.org/10.55981/aij.2024.1301","url":null,"abstract":"This work aims to achieve interesting progress in uranium extraction by introducing a promising strategy that utilizes atmospheric nitrogen plasma-induced amine modification of CBC (Cubic Bi-continuous) material, providing a compelling pathway to enhance CBC's adsorption properties specifically for uranium harvesting. CBCs mesoporous silica samples were prepared by mixing the Pluronic F-127 as a template and TEOS (Tetraethyl Orthosilicate) as silica sources in the sol-gel process under acidic conditions. The obtained CBCs were treated using nitrogen plasma at room temperature (RT) under atmospheric pressure in a customized-borosilicate plasma reactor. Subsequently, the treated CBSs were grafted with amine groups. The final samples were characterized using SAXS (Small Angle Synchrotron X-ray Scattering) to determine the phase and structure, SEM-EDS (Scanning Electron Microscopy-Energy Dispersive Spectroscopy) analysis to quantify the presence of silica, oxygen, and embedded nitrogen, and Specific Surface Area (SSA) Analyzer using Brunauer-Emmett-Teller (BET) method to determine the specific surface area and pore size distribution. The SAXS profiles indicate that the obtained samples can be classified as CBCs Im3m mesoporous silica. The presence of silica, oxygen, and nitrogen was verified through SEM-EDS analysis, with approximate compositions of 36-37 %, 51-62 %, and 0.7-1.0 %, respectively. The use of SSA analysis further supported the findings, confirming the typical adsorption isotherm IV model. The specific surface areas were measured to be 371 m2/g for pure CBC, 573 m2/g for P1-CBC, and 607 m2/g for P2-CBC. The pore size distribution analysis revealed mesoporous characteristics within the material, with pore sizes ranging from 4 to 6.5 nm. On a batch laboratory scale, the material achieved the highest adsorption capacity of 15.68 mg-U(VI)/g-NH2@P1-CBC from natural seawater after 1 hour of contact time.","PeriodicalId":8647,"journal":{"name":"Atom Indonesia","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbone or Oxygen Therapy: A Comparative Dosimetric Study Using PHITS Code 卡波尼或氧气疗法：使用 PHITS 代码进行的剂量测定比较研究

IF 0.6

Atom Indonesia Pub Date : 2024-08-08 DOI: 10.55981/aij.2024.1352

H. El Bekkouri, E. A. Al Ibrahmi, M. El-Asery, A. Bardane, C. El Mahjoub, A. Didi, Z. Sadoune

引用次数: 0

A Neutronic Study of A Low-Enriched Uranium-Fueled Microreactor Cooled with A Sodium Heat Pipe System Using The OpenMC Code 利用 OpenMC 代码对使用钠热管系统冷却的低浓铀燃料微反应器进行中子研究

IF 0.6

Atom Indonesia Pub Date : 2024-08-08 DOI: 10.55981/aij.2024.1318

A. Bourenane, L. Hamidatou, M. Dougdag, M. L. Yahiaoui

{"title":"A Neutronic Study of A Low-Enriched Uranium-Fueled Microreactor Cooled with A Sodium Heat Pipe System Using The OpenMC Code","authors":"A. Bourenane, L. Hamidatou, M. Dougdag, M. L. Yahiaoui","doi":"10.55981/aij.2024.1318","DOIUrl":"https://doi.org/10.55981/aij.2024.1318","url":null,"abstract":"The development of Small Modular Reactors (SMRs) represents a pivotal shift in nuclear technology, emphasizing enhanced safety, efficiency, and adaptability. This study examines Toshiba's MoveluX, an innovative micro-reactor, exemplifying advancements in reactor miniaturization suitable for limited spatial environments and hybridization with other energy sources. In this paper, the performance and safety of the MoveluX are rigorously evaluated using the OpenMC code, with an emphasis on critical parameters such as the effective multiplication coefficient and the reactivity worth of control devices. A 3D model of the given microreactor was built based on Toshiba's designs and features a solid core and a heat pipe cooling system. Preliminary results affirm the model's accuracy, and analysis of the neutron spectrum and flux indicates significant fission occurring in the U-238 isotope. Furthermore, the investigation extends to the thermal aspect within the fuel elements, uncovering a significant power density at the interfaces between fuel and moderator. Overall, this research makes a substantial contribution to the field of microreactor design and optimization.","PeriodicalId":8647,"journal":{"name":"Atom Indonesia","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141927092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bibliometric Analysis of the Literature on Carbon Ion Therapy Using VOSviewer Software and Dimensions Database 使用 VOSviewer 软件和维度数据库对碳离子疗法文献进行文献计量分析

IF 0.6

Atom Indonesia Pub Date : 2024-08-08 DOI: 10.55981/aij.2024.1392

H. El Bekkouri, E. A. Al Ibrahmi, M. El-Asery, A. Bardane, A. Didi, C. El Mahjoub, Z. Sadoune

{"title":"Bibliometric Analysis of the Literature on Carbon Ion Therapy Using VOSviewer Software and Dimensions Database","authors":"H. El Bekkouri, E. A. Al Ibrahmi, M. El-Asery, A. Bardane, A. Didi, C. El Mahjoub, Z. Sadoune","doi":"10.55981/aij.2024.1392","DOIUrl":"https://doi.org/10.55981/aij.2024.1392","url":null,"abstract":"This study aims to carry out a bibliometric assessment of the worldwide research literature and historical research results on carbon ion therapy for cancer treatment. To carry out this work, we used the VOSviewer software and the Dimensions database. The VOSviewer software tool examined 2,500 publications exported from the Dimensions database. The results show a notable upward trajectory in academic research on carbon ion therapy since 1994, with 2020 showing the highest volume of publications. “Biomedical and Clinical Sciences”, “Physical Sciences”, “Oncology and Carcinogenesis”, and “Medical and Biological Physics” are the most important research categories. “Physics in Medicine and Biology” and “Medical Physics” are the leading journals for research publications on carbon ion therapy. Scrutiny based on term occurrences demonstrates the shift in research interest towards carbon ion radiation therapy. The analysis of bibliographic couplings concerning different countries revealed that Japan is the most dynamic and prolific country based on the number of publications (659) and citations (13734), followed by Germany with 590 publications and 19679 citations. These analytical studies provide a thorough overview of academic publications dedicated to using carbon ions for tumor treatment. This data is anticipated to be highly valuable for researchers seeking to pinpoint the most recent developments and emerging trends in this field of research.","PeriodicalId":8647,"journal":{"name":"Atom Indonesia","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141927739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radiological and Toxicity Hazards Estimate of Drinking Water in Al-Diwaniyah, Iraq 伊拉克迪瓦尼耶饮用水的放射性和毒性危害评估

IF 0.6

Atom Indonesia Pub Date : 2024-08-08 DOI: 10.55981/aij.2024.1419

M. A. Abbas, H. A. Hammood, D. J. Salman

{"title":"Radiological and Toxicity Hazards Estimate of Drinking Water in Al-Diwaniyah, Iraq","authors":"M. A. Abbas, H. A. Hammood, D. J. Salman","doi":"10.55981/aij.2024.1419","DOIUrl":"https://doi.org/10.55981/aij.2024.1419","url":null,"abstract":"In this work, analyses of 222Rn concentration and effective 226Ra content in all available types of drinking water in Al-Diwaniyah city, Iraq, were achieved by using CR-39 detectors technique. The annual effective dose from 222Rn and 226Ra distribution by three age groups were calculated. Radiological and chemical hazards were also calculated in drinking water samples. Drinking water samples were taken from tap water, water treatment plants, reverse osmosis water, and bottled drinking water in Al-Diwaniyah city. Effective 226Ra content level in some tap water samples were bigger than recommended value WHO for drinking water (1 Bq/L), but far below maximum acceptable limit of 370 Bq/L according to IAEA. All other values of 222Rn concentration and effective 226Ra content, annual effective dose, cancer morbidity and mortality hazards, and the lifetime average daily dose caused by consumption 226Ra in drinking water were less than recommended limits. Therefore, 222Rn concentration and effective 226Ra content in drinking water obtained in this work cannot give rise to radiological and chemical threats to population. However, for greater safety, we advise not to use tap water directly as drinking water. This work will provide important new data on the possible health effects of drinking water in Al-Diwaniya city.","PeriodicalId":8647,"journal":{"name":"Atom Indonesia","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141926193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preliminary Study of Micronucleus Frequencies and Responses in Thyroid Cancer Patients After Treatment with 131I Therapy 甲状腺癌患者接受 131I 治疗后微核频率和反应的初步研究

IF 0.6

Atom Indonesia Pub Date : 2024-08-08 DOI: 10.55981/aij.2024.1409

I. K. H. Basri, Y. Lusiyanti, D. Ramadhani, D. Tetriana, A. R. Dewi, S. Purnami, V. A. Suvivan, M. R. A. Gani, T. Kisnanto

引用次数: 0

Radon Concentration in Biological Samples of Smokers and Non-smokers Using Lexan Detector 使用 Lexan 探测器检测吸烟者和非吸烟者生物样本中的氡浓度

IF 0.6

Atom Indonesia Pub Date : 2024-08-08 DOI: 10.55981/aij.2024.1402

A. A. Alkufi, A. Abojassim, M. H. Oleiwi

{"title":"Radon Concentration in Biological Samples of Smokers and Non-smokers Using Lexan Detector","authors":"A. A. Alkufi, A. Abojassim, M. H. Oleiwi","doi":"10.55981/aij.2024.1402","DOIUrl":"https://doi.org/10.55981/aij.2024.1402","url":null,"abstract":"This study was conducted in the Najaf Governorate, Iraq, to analyze radon concentration in biological samples from smokers and non-smokers. The samples, including blood serum, urine, hair, and nails, were used as biomarkers to determine the presence or absence of radon (222Rn). Using a natural exposure method, the nuclear track detector (Lexan, Belgium) was utilized to measure these radon concentrations in the samples. Seventy-five samples of blood serum, urine, hair, and nails were collected for smokers of healthy people and fifty samples for non-smokers of healthy people in five age groups. This study was based on age and smoking to compare the results and determine their effects on radon concentrations. The results show that the average values of radon concentrations (in Bq/m3) in blood serum, urine, hair, and nails for smokers were 54.7 ± 22.1, 62.9 ± 23.1, 34.7 ± 11.2, and 41.7 ± 15.2, respectively. Meanwhile, the average values of radon concentrations (in Bq/m3) in blood serum, urine, hair, and nails for non-smokers were 24.2 ± 6.0, 30.0 ± 6.3, 18.7 ± 5.2, and 21.6 ± 6.9 respectively. The results and comparisons indicate that radon concentrations depend on the variables on which this study was based (age and smoking). Smokers and non-smokers had different levels of radon in all biological samples. The P-value was","PeriodicalId":8647,"journal":{"name":"Atom Indonesia","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141925895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Patient Dose Reduction Efforts on Image Quality for Thoracic CT in A Moroccan Hospital 摩洛哥一家医院减少患者剂量的努力对胸部 CT 图像质量的影响

IF 0.6

Atom Indonesia Pub Date : 2024-08-08 DOI: 10.55981/aij.2024.1411

Z. Saga, A. Rahmouni, L. Belaroussi, M. Talbi, M. El Mansouri, A. Rezzouk

{"title":"Effects of Patient Dose Reduction Efforts on Image Quality for Thoracic CT in A Moroccan Hospital","authors":"Z. Saga, A. Rahmouni, L. Belaroussi, M. Talbi, M. El Mansouri, A. Rezzouk","doi":"10.55981/aij.2024.1411","DOIUrl":"https://doi.org/10.55981/aij.2024.1411","url":null,"abstract":"Thoracic CT imaging is a strongly recommended means of medical imaging. It is accompanied by a high exposure to radiation due to the number of examinations carried out, which requires efforts to reduce the CT dose index (CTDI) while trying to preserve image quality. To this end, this study proposed the possibility of introducing two new imaging protocols for chest tomography. A 16-slice HITACHI SUPIA CT scanner and two phantoms were used to investigate CTDIvol and image quality; the first phantom was made of PMMA and the other of AAPM model 610. Three tube voltages were studied by varying the intensity of the tube current (mA): 120 kVp (120-160-210-230) mA, 100 kVp (160-200-240-290) mA, and 80 kVp (230-260-300-350) mA. The values for noise uniformity and accuracy, contrast-to-noise ratio (CNR), and spatial resolution (SR) were determined using IndoQCT c22a. 92 software. The first thoracic protocol proposed with 100 kVp compared to 120 kVp resulted in a 27.51 % reduction in CTDIvol, a 20 % increase in mA, and a 19.50 % increase in noise. The CNR showed a slight regression of 23.08 %. For the second scan procedure at 80 kVp, the CTDIvol was reduced by 53.32 %, while noise was increased by 53.95 %. There was no statistically significant difference in CNR and SR (p > 0.05) when kVp and mA were reduced compared to the routine protocol. It is suggested that it is possible to adopt two new acquisition protocols at 100 kVp and 80 kVp while reducing the patient exposure dose (CTDIvol) by 28 % and 54 % and taking into account the effect of varying these parameters on image quality. Their choices must be made by integrating and considering clinical issues and a good understanding of the pathophysiology and imaging results of the suspected condition. Consequently, radiologists and technicians should always take a part in improving imaging practices in such a way as to make more effective use of radiation.","PeriodicalId":8647,"journal":{"name":"Atom Indonesia","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0