Nukleonika最新文献_第10页

Cost-effective approach to lung cancer risk for a radiological dispersal device (RDD) scenario 放射分散装置(RDD)情景下肺癌风险的成本效益方法

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2019-12-01 DOI: 10.2478/nuka-2019-0016

Karolina P. S. Costa, Sergio X. Lima, T. Brum, Z. R. Lima, J. Amorim, M. Healy, H. Vital, Matjaž Prah, E. Andrade

{"title":"Cost-effective approach to lung cancer risk for a radiological dispersal device (RDD) scenario","authors":"Karolina P. S. Costa, Sergio X. Lima, T. Brum, Z. R. Lima, J. Amorim, M. Healy, H. Vital, Matjaž Prah, E. Andrade","doi":"10.2478/nuka-2019-0016","DOIUrl":"https://doi.org/10.2478/nuka-2019-0016","url":null,"abstract":"Abstract A release of radioactive material into the environment can lead to hazardous exposure of the population and serious future concerns about health issues such as an increased incidence of cancer. In this context, a practical methodology capable of providing useful basic information from the scenario can be valuable for immediate decisions and future risk assessment. For this work, the simulation of a radiological dispersal device (RDD) filled with americium-241 was considered. The radiation dose simulated by the HotSpot code was used as an input to the epidemiological equations from BEIR V producing the data used to assess the risk of lung cancer development. The methodology could be useful in providing training for responders aimed to the initial support addressed to decision-making for emergency response at the early phase of an RDD scenario. The results from the simulation allow estimating (a) the size of the potentially affected population, (b) the type of protection action considering gender and location of the individuals, (c) the absorbed doses, (d) the matrix of lung cancer incidence predictions over a period of 5 years, and (e) the cost-effectiveness in the initial decision environment.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":"64 1","pages":"123 - 129"},"PeriodicalIF":0.7,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44720231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 3

Calculated neutron energy dependence of the dose-response of large recombination chamber 大型复合室剂量反应的中子能量依赖性计算

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2019-12-01 DOI: 10.2478/nuka-2019-0015

K. Tymińska, M. Gryziński, M. Maciak

引用次数: 0

Investigation of the level structure of 90Nb nucleus using the shell model 用壳层模型研究90Nb原子核的能级结构

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2019-12-01 DOI: 10.2478/nuka-2019-0014

Wu Yi-Heng, Yang Dong, Ma Ke-yan, Luo Peng-Wei

引用次数: 1

Clinical advantages of using unflattened 6-MV and 10-MV photon beams generated by the medical accelerator Elekta Versa HD based on their dosimetric parameters in comparison to conventional beams 医用加速器Elekta Versa HD产生的非扁平6 mv和10 mv光子束的剂量学参数与常规光束的临床优势

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2019-09-01 DOI: 10.2478/nuka-2019-0010

B. Baic, B. Kozłowska, R. Kwiatkowski, M. Dybek

{"title":"Clinical advantages of using unflattened 6-MV and 10-MV photon beams generated by the medical accelerator Elekta Versa HD based on their dosimetric parameters in comparison to conventional beams","authors":"B. Baic, B. Kozłowska, R. Kwiatkowski, M. Dybek","doi":"10.2478/nuka-2019-0010","DOIUrl":"https://doi.org/10.2478/nuka-2019-0010","url":null,"abstract":"Abstract Photon beams with wide energy ranges from 4 MV to 25 MV are commonly used in radiotherapy nowadays. In recent years, there has been a strong interest in a certain modification of a radiotherapeutic apparatus by the application of the so-called flattening filter-free (FFF) beam. Several advantages of FFF beams over standard flattening filter (FF) beams are noticed, and this technical solution has aroused great interest among radiotherapeutic facilities. The goal of the present study is to investigate the differences between the conventional FF and unflattened FFF 6-MV and 10-MV photon beams in some basic dosimetric parameters and their influence on the whole radiotherapeutic treatment. The data provided here include the detailed characteristics as follows: percent depth dose (PDD), beam profile, edge of a half-profile, total scatter correction factor (TSCF) and head scatter correction factor (HSCF) for FF and FFF 6-MV and 10-MV photon beams from the Elekta Versa HD accelerator in the Katowice Oncology Center in Poland.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":"64 1","pages":"77 - 86"},"PeriodicalIF":0.7,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42986382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 8

Ecological analysis of heavy metal and radioactivity potential of Holocene sediments in Iznik Lake 伊兹尼克湖全新世沉积物重金属生态分析及放射性潜势

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2019-09-01 DOI: 10.2478/nuka-2019-0013

Z. U. Yumun, E. Kam

{"title":"Ecological analysis of heavy metal and radioactivity potential of Holocene sediments in Iznik Lake","authors":"Z. U. Yumun, E. Kam","doi":"10.2478/nuka-2019-0013","DOIUrl":"https://doi.org/10.2478/nuka-2019-0013","url":null,"abstract":"Abstract In this study, the heavy metal and radioactive properties of Iznik Lake were investigated. Concentration values of the first (Ag, Bi, Mo, Sn, Se, Zn, As, B, Cd, Co, Cr, Cu, Ni, Pb, Pt and Sb) and second (Na, Mg, K, Ca, P, S, Fe, Al and Mn) group of elements in borehole 1 (BH-1) drilling did not show much variation from the top to the bottom of the drilling. Concentration values of the first group of elements in borehole 2 (BH-2) drill samples decreased at higher levels of drilling. In addition, natural and anthropogenic radionuclides were measured by gamma spectrometry, and the results of environmental natural radioactivity of Iznik Lake and its surroundings were determined. In the measurement results, Ra-226 was found to be below the world average value at all locations. It is assumed that the determination of K-40 values above the average values was due to agricultural activities carried out intensively in the study area. Th-232 values were found to be below the world average value in drilling samples; Cs-137 values were below the background level in all samples. According to these results, the study area does not contain any unnatural radioactivity.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":"64 1","pages":"103 - 109"},"PeriodicalIF":0.7,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43067511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 5

A portable fast neutron radiography system for non-destructive analysis of composite materials 一种用于复合材料无损分析的便携式快中子射线照相系统

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2019-09-01 DOI: 10.2478/nuka-2019-0012

E. Kam, I. Reyhancan, R. Biyik

{"title":"A portable fast neutron radiography system for non-destructive analysis of composite materials","authors":"E. Kam, I. Reyhancan, R. Biyik","doi":"10.2478/nuka-2019-0012","DOIUrl":"https://doi.org/10.2478/nuka-2019-0012","url":null,"abstract":"Abstract Depending on the neutron energy used, neutron radiography can be generally categorized as fast and thermal neutron radiography. Fast neutron radiography (FNR) with neutron energy more than 1 MeV opens up a new range of possibilities for a non-destructive examination when the inspected object is thick or dense. Other traditional techniques, such as X-ray, gamma ray and thermal neutron radiography, do not meet penetration capabilities of FNR in this area. Because of these distinctive features, this technique is used in different industrial applications such as security (cargo investigation for contraband such as narcotics, explosives and illicit drugs), gas/liquid flow and mixing and radiography and tomography of encapsulated heavy shielded low Z compound materials. The FNR images are produced directly during exposure as neutrons create recoil protons, which activate a scintillator screen, allowing images to be collected with a computer-controlled charge-coupled device camera. Finally, the picture can be saved on a computer for image processing. The aim of this research was to set up a portable FN R system and to test it for use in non-destructive testing of different composite materials. Experiments were carried out by using a fast portative neutron generator Thermo Scientific MP 320.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":"64 1","pages":"101 - 97"},"PeriodicalIF":0.7,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47494482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 4

Analysis of the BEAVRS PWR benchmark using SCALE and PARCS 利用SCALE和PARCS分析BEAVRS压水堆基准

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2019-09-01 DOI: 10.2478/nuka-2019-0011

P. Darnowski, Michał Pawluczyk

{"title":"Analysis of the BEAVRS PWR benchmark using SCALE and PARCS","authors":"P. Darnowski, Michał Pawluczyk","doi":"10.2478/nuka-2019-0011","DOIUrl":"https://doi.org/10.2478/nuka-2019-0011","url":null,"abstract":"Abstract This paper presents an analysis of the Benchmark for Evaluation And Validation of Reactor Simulations (BEAVRS) performed using SCALE 6.1.2 and PARCS 3.2 computer codes. The benchmark specification contains a detailed design, operational data and measurements for a real 4-loop Westinghouse pressurized water reactor (PWR). The lattice physics simulations were prepared using TRITON depletion sequence and NEWT neutron transport solver (SCALE package). The 238-neutron group library based on evaluated nuclear data file – ENDF/B-VII nuclear data libraries was applied. A set of branch and burnup calculations was prepared, and group constants in the form of PMAXS files were generated with GenPMAXS. The full-core models were prepared using the PARCS nodal-diffusion core simulator. The PMAXS libraries were used with PARCS to investigate the core operation. The hot zero power measurement data, including control rod worths and critical boron concentrations, were compared using simulations, and satisfactory results were achieved. The first fuel cycle was simulated, and acceptable agreement with boron letdown curve and measurements were obtained. Finally, conclusions and recommendations for future research were presented.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":"64 1","pages":"87 - 96"},"PeriodicalIF":0.7,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41870953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 12

Simulated nuclear contamination scenario, solid cancer risk assessment, and support to decision 模拟核污染情景，实体癌风险评估，并支持决策

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2019-06-01 DOI: 10.2478/nuka-2019-0005

Sergio X. Lima, Karolina P. S. Costa, Z. R. Lima, Fagner C. Rother, O. Araújo, H. Vital, T. Brum, W. F. R. Júnior, J. Amorim, M. Healy, E. Andrade

{"title":"Simulated nuclear contamination scenario, solid cancer risk assessment, and support to decision","authors":"Sergio X. Lima, Karolina P. S. Costa, Z. R. Lima, Fagner C. Rother, O. Araújo, H. Vital, T. Brum, W. F. R. Júnior, J. Amorim, M. Healy, E. Andrade","doi":"10.2478/nuka-2019-0005","DOIUrl":"https://doi.org/10.2478/nuka-2019-0005","url":null,"abstract":"Abstract The detonation of an (hypothetical) improvised nuclear device (IND) can generate atmospheric release of radioactive material in the form of particles and dust that ultimately contaminate the soil. In this study, the detonation of an IND in an urban area was simulated, and its effects on humans were determined. The risk of solid cancer development due to radiation was calculated by taking into account prompt radiation and whole-body exposure of individuals near the detonation site up to 10 km. The excess relative risk (ERR) of developing solid cancer was evaluated by using the mathematical relationships from the Radiation Effects Research Foundation (RERF) studies and those from the HotSpot code. The methodology consists of using output data obtained from simulations performed with the HotSpot health physics code plugging in such numbers into a specific given equation used by RERF to evaluate the resulting impact. Such a preliminary procedure is expected to facilitate the decision-making process significantly.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":"64 1","pages":"41 - 48"},"PeriodicalIF":0.7,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44564189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 6

Suitability of rocks and sediments from Brzeszcze and Silesia coal mines as building materials in terms of radiological hazard 就放射性危害而言，布热什采和西里西亚煤矿的岩石和沉积物作为建筑材料的适用性

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2019-06-01 DOI: 10.2478/nuka-2019-0008

M. Śleziak, M. Duliński

引用次数: 2

Radiation induced degradation of Congo red dye: a mechanistic study 辐射诱导刚果红染料降解的机理研究

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2019-06-01 DOI: 10.2478/nuka-2019-0006

M. Muneer, M. Saeed, I. Bhatti, A. Haq, M. K. Khosa, M. Jamal, Saddaqat Ali

{"title":"Radiation induced degradation of Congo red dye: a mechanistic study","authors":"M. Muneer, M. Saeed, I. Bhatti, A. Haq, M. K. Khosa, M. Jamal, Saddaqat Ali","doi":"10.2478/nuka-2019-0006","DOIUrl":"https://doi.org/10.2478/nuka-2019-0006","url":null,"abstract":"Abstract Synthetic dyes are persistent pollutants with poor biodegradability. The present study is about the degradation of direct Congo red dye in aqueous media using the Co-60 gamma radiation source. The experimental conditions such as gamma-ray absorbed doses, amount of oxidant (H2O2) and pH conditions were evaluated. The λmax of dye solution was noted as 498 nm, and then, decrease in absorbance and reduction in chemical oxygen demand (COD) were examined. The complete colour removal of dye was observed at 5 kGy, while a significant COD removal was observed at 15 kGy gamma-ray absorbed dose in conjunction with oxidant for 50 mg/L concentration. It was found that pH has no influence on degradation efficiency. A possible degradation pathway was proposed. The radiolytic end products were monitored by Fourier transform infrared (FTIR) and gas chromatography coupled with mass spectrometry (GC-MS) to explore the degradation mechanism. It was imperative to study the oxidative degradation pathway to provide directions for potential applicability of advanced oxidation process (AOP) in industrial wastewater treatment.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":"64 1","pages":"49 - 53"},"PeriodicalIF":0.7,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2478/nuka-2019-0006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47587384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 13