HNPS Advances in Nuclear Physics最新文献_第5页

Experimental Study of the Nuclear Structure of 180Hf: Preliminary results 180Hf核结构的实验研究:初步结果

HNPS Advances in Nuclear Physics Pub Date : 2022-10-17 DOI: 10.12681/hnps.3612

P. Vasileiou, T. Mertzimekis, A. Chalil, A. Zyriliou, S. Pelonis, V. Lagaki, G. Siltzovalis, M. Efstathiou, Pavlos Koseoglu, D. Bonatsos, A. Martinou, N. Minkov, N. Mărginean, Constantinescu Mihai, N. Florea, S. Ujeniuc, Andrei Tuturica, C. Costache, R. Mihai, L. Stan, D. Filipescu, S. Toma, I. Gheorghe, I. Dinescu, A. Ionescu, L. Stoica, S. Calinescu, A. Oprea, A. Stoica, C. Sotty, C. Clisu, C. Nita, C. Neascu

引用次数: 0

Measurement of elastic backscattering differential cross sections for protons on natO in the energy range E= 4-6 MeV, suitable for EBS 适合于EBS的能量范围E= 4-6 MeV的北约上质子弹性后向散射微分截面的测量

HNPS Advances in Nuclear Physics Pub Date : 2022-10-17 DOI: 10.12681/hnps.3714

K. Bosmpotinis, M. Kokkoris, A. Lagoyannis, E. Taimpiri, A. Ziagkova

引用次数: 0

Nuclear Structure Investigations in Yb isotopes Yb同位素的核结构研究

HNPS Advances in Nuclear Physics Pub Date : 2022-10-17 DOI: 10.12681/hnps.3609

A. Zyriliou, T. Mertzimekis, A. Chalil, P. Vasileiou, S. Pelonis, M. Efstathiou, L. Stan, A. Turturica, C. Costache, R. Mihai, R. Borcea, S. Ujeniuc, S. Toma, C. Clisu, A. Oprea, A. Ionescu, I. Gheorghe, M. Boromiza, Constantinescu Mihai, C. Sotty, C. Nita, N. Mărginean, R. Mărginean, N. Florea, I. Dinescu, D. Bucurescu, D. Filipescu, R. Lica, L. Stroe, R. Șuvăilă

引用次数: 0

Impact of nuclear mass measurements in the vicinity of 132Sn on the r-process nucleosynthesis 132Sn附近核质量测量对r-过程核合成的影响

HNPS Advances in Nuclear Physics Pub Date : 2022-10-17 DOI: 10.12681/hnps.3605

S. Nikas, A. Kankainen, O. Beliuskina, D. Nesterenko

引用次数: 0

Advances in Cosmic Ray Muon Computed Tomography and Fieldable Spectroscopy 宇宙射线介子计算机断层扫描和可场光谱学研究进展

HNPS Advances in Nuclear Physics Pub Date : 2022-10-17 DOI: 10.12681/hnps.3584

S. Chatzidakis, Junghyun Bae

{"title":"Advances in Cosmic Ray Muon Computed Tomography and Fieldable Spectroscopy","authors":"S. Chatzidakis, Junghyun Bae","doi":"10.12681/hnps.3584","DOIUrl":"https://doi.org/10.12681/hnps.3584","url":null,"abstract":"A recent example of successful technology transition from high energy physics to practical engineering applications is cosmic ray muon tomography. Cosmic ray muon tomography, is a promising non-destructive technique that has been recently utilized to monitor or image the contents of dense or well shielded objects, typically not feasible with conventional radiography techniques, e.g., x-ray or neutron. Cosmic ray muon tomography has been used with various levels of success in spent nuclear fuel monitoring, volcano imaging, and cargo container imaging. Further, knowledge of cosmic ray muon momentum spectrum has the potential to significantly improve and expand the use of a variety of recently developed muon-based radiographic techniques. However, existing muon tomography systems rely only on muon tracking and have no momentum measurement capabilities which reduces the image resolution and requires longer measurement times. A fieldable cosmic ray muon spectrometer with momentum measurement capabilities for use in muon tomography is currently missing. In this paper, we will discuss and explore recent advances in cosmic ray muon computed tomography and spectroscopy and their applications to engineering including a new concept for measuring muon momentum using multiple gaseous Cherenkov radiators. By varying the pressure of multiple gas Cherenkov radiators, a set of muon momentum threshold levels can be selected that are triggered only when the incoming muon momentum exceeds that level. As a result, depending on the incoming muon momentum, none to all Cherenkov radiators can be triggered. By analyzing the signals from each radiator, we can estimate the actual muon momentum.","PeriodicalId":262803,"journal":{"name":"HNPS Advances in Nuclear Physics","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125253752","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

Suffering in the Name of Protecting: The Case of the Fukushima Population 以保护为名的苦难:福岛居民的案例

HNPS Advances in Nuclear Physics Pub Date : 2022-10-17 DOI: 10.12681/hnps.4795

J. Kalef-Ezra

{"title":"Suffering in the Name of Protecting: The Case of the Fukushima Population","authors":"J. Kalef-Ezra","doi":"10.12681/hnps.4795","DOIUrl":"https://doi.org/10.12681/hnps.4795","url":null,"abstract":"Major nuclear accidents are rare events causing large and long-lasting medical, environmental, economic, and societal consequences. Urgent mass evacuation and long-term displacement of about 165.000 persons and their long-term resettlement after the 2011 Fukushima-1 accident destabilized Japan. As of March 2020, the official number of displaced persons from their home in Fukushima Prefecture was reduced to 40.335, an action that averted a collective effective dose of about 3,000 man.Sv. Most of the causalities were elderely volunarable pesons, such as patients with chronic diseases, instititionalized individuals, and very poor persons. However, no early radiation-induced somatic effects to public were reported. This article seeks to compare the benefit of the evacuation/resettlement procedure with its cost. The accident-related death toll in Fukushima Prefecture has to be differantiated from that due to the earthquaque and the tsunami that trigered the foressen and prevenatble nuclear 2011 accident. Taking into acount the ratio of the direct and the indirect deaths at the Miyagi and Iwate Prefectures, can be assumed that out the 2.313 indirect life losses in Fukushima registered up at to 2020, only about 165 could be attributed to the eartquake and the tsuami, and few tens due to the radiation induced cancer among the dispaced persons. The mass dispacement resulted in increased incidence of severe somatic effects, mental and psychic disorders, social isolation, insecurity, unemployment, poverty, urbanization, and exploitation. Therefore, the mitigation actions, as designed and implemented, led in a secondary tragedy larger than that due the accident itself, resulting among other things to the death of about 2.100 persons in the name of sparing, in theory, about 150 lives with a latency time of decades","PeriodicalId":262803,"journal":{"name":"HNPS Advances in Nuclear Physics","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115166636","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: 1

In Depth Analysis of a Sediment Core from North Aegean Sea 北爱琴海沉积物岩心的深度分析

HNPS Advances in Nuclear Physics Pub Date : 2022-10-17 DOI: 10.12681/hnps.3608

Iason Mitsios, F. Pappa, D. Patiris, P. Rouni, M. Anagnostakis, C. Tsabaris

{"title":"In Depth Analysis of a Sediment Core from North Aegean Sea","authors":"Iason Mitsios, F. Pappa, D. Patiris, P. Rouni, M. Anagnostakis, C. Tsabaris","doi":"10.12681/hnps.3608","DOIUrl":"https://doi.org/10.12681/hnps.3608","url":null,"abstract":"In this work a thorough analysis of the vertical distribution of natural and artificial radionuclides and trace elements in a sediment core sample was conducted. A sediment core of 39 cm length was grabbed from the deep-sea trench (1540 m depth) southern of Samothrace Island, Aegean Sea. The sediment core was then treated at the Hellenic Centre for Marine Research, separated at 1cm increment samples, ranging from 0cm to 39 cm, dried, and milled. A first analysis of the samples was also conducted at HCMR using gamma spectroscopic techniques. Further spectroscopic analysis continued at Nuclear Engineering Department of the National Technical University of Athens (NED-NTUA) using an Extended Range Germanium Detector. The following radionuclides were determined 210Pb, 234Th, 226Ra, 228Ra, 228Th, 137Cs and 40K. Additionally, Instrumental Neutron Activation Analysis was used and the following major and trace elements were identified and quantified: Al, V, La, Sc, Mn, As, Ga, Cr, Zn, Co, Rb, Fe, K, Na and Ce. Based on the analysis of each sample, the vertical distribution of most natural radionuclides showed no significant variation. The vertical distribution of anthropogenic 137Cs was very low and almost constant. Unsupported 210Pb activity was about six times higher than 226Ra, indicating high radon fluxes. Furthermore, neutron activation analysis results indicate that almost all elements are within the expected range based on literature, while K and Na show a slightly increased concentration. For the area, these findings indicate steady and calm sedimentation processes.","PeriodicalId":262803,"journal":{"name":"HNPS Advances in Nuclear Physics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127610238","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

A study of shape transition and bubbleness in Ne isotopes Ne同位素的形状转变和气泡研究

HNPS Advances in Nuclear Physics Pub Date : 2022-10-17 DOI: 10.12681/hnps.3540

Pankaj Kumar, V. Thakur, S. K. Dhiman

引用次数: 0

Study of the 176Hf(n,2n)175Hf cross section at 18.9 MeV 18.9 MeV下176Hf(n,2n)175Hf截面的研究

HNPS Advances in Nuclear Physics Pub Date : 2022-10-17 DOI: 10.12681/hnps.3710

E. Tsivouraki, S. Chasapoglou, Michalis Serris, M. Axiotis, Georgios Gkatis, S. Harissopulos, M. Kokkoris, A. Lagoyannis, Stavros Patas, R. Vlastou

{"title":"Study of the 176Hf(n,2n)175Hf cross section at 18.9 MeV","authors":"E. Tsivouraki, S. Chasapoglou, Michalis Serris, M. Axiotis, Georgios Gkatis, S. Harissopulos, M. Kokkoris, A. Lagoyannis, Stavros Patas, R. Vlastou","doi":"10.12681/hnps.3710","DOIUrl":"https://doi.org/10.12681/hnps.3710","url":null,"abstract":"Neutron nuclear reactions can provide significant information in the field of nuclear physics and applications. Hafnium (Hf) is one of the rare-earth isotopes with a relative large neutron total cross-section in the thermal neutron energy region and neutron induced reactions in reactor materials could lead to the production of long-lived isomeric states of Hf isotopes. Thus, the knowledge of neutron cross-sections on Hf isotopes is of great importance for basic research in Nuclear Physics as well as for applications concerning the interaction of neutrons with matter. In this study measurements of experimental cross section for the 176Hf(n,2n)175Hf and 180Hf(n,n΄γ)180mHf reactions were carried out, using the activation technique. The neutron beam energy at 18.9 MeV was produced via the 3H(d,n)4He reaction at the 5.5 MeV Tandem Van de Graaf accelerator laboratory of NCSR “Demokritos”. A thin metallic foil of natural Hf was used, while for the determination of the neutron flux at the target position a reference foil of Al was placed at the back of the Hf target. The irradiation was continuous for 28 hours leading to a total neutron fluence of 1010 n/cm2 and a BF3 detector was used for monitoring the neutron flux during the irradiation. After the end of irradiation, the activity of the Hf target and the Al foil were measured off-line by two HPGe detectors. Both detector efficiencies were obtained using a calibrated 152Eu source, placed in the same distance as the target and the reference foil. The 176Hf(n,2n)175Hf reaction has been corrected from the contribution of 177Hf(n,3n)175Hf and the 174Hf(n,γ)175Hf reactions and the 180Hf(n,n΄γ)180mHf reaction from the 179Hf(n,γ)180mHf. Theoretical calculations of the 174Hf(n,2n)175Hf, 176Hf(n,2n)175Hf and 180Hf(n,n΄γ)180mHf reaction cross-sections have also been performed using the nuclear statistical code “EMPIRE 3.2.3” and they have been compared with the data.","PeriodicalId":262803,"journal":{"name":"HNPS Advances in Nuclear Physics","volume":"251 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123326298","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

Preparing Phase 4 of the n_TOF/CERN facility 准备n_TOF/CERN设施的第4阶段

HNPS Advances in Nuclear Physics Pub Date : 2022-10-17 DOI: 10.12681/hnps.3610

M. Stamati, N. Patronis, M. Bacak, S. Amaducci, Adrià Casanovas Hoste, Francisco Garcia Infantes, A. Manna, A. Mengoni, Jose Antonio Pavon Rodriguez, Antonio Javier Praena Rodriguez, M. Spelta

引用次数: 0