Alkan, Türkan
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Alkan T.
Özbay, Türkan Alkan
Alkan, Turkan
Özbay, Türkan Alkan
Alkan, Turkan
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Email Address
turkan.alkan@ieu.edu.tr
Main Affiliation
15.07. Optician
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Current Staff
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Documents
4
Citations
23
h-index
2
Documents
0
Citations
0
Scholarly Output
6
Articles
6
Views / Downloads
40/53
Supervised MSc Theses
0
Supervised PhD Theses
0
WoS Citation Count
12
Scopus Citation Count
12
WoS h-index
2
Scopus h-index
2
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0
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0
WoS Citations per Publication
2.00
Scopus Citations per Publication
2.00
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2
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0
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| Journal | Count |
|---|---|
| Journal of Basic and Clinical Health Sciences | 2 |
| Applied Radiation and Isotopes | 1 |
| Journal of Environmental Radioactivity | 1 |
| Journal of Instrumentation | 1 |
| Radıoprotectıon | 1 |
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6 results
Scholarly Output Search Results
Now showing 1 - 6 of 6
Article The Responses of Radiology Professionals To the Covid-19 Pandemic(Dokuz Eylul Univ Inst Health Sciences, 2022) Alkan, Turkan; Çilengiroğlu, Özgül VupaPurpose: This study aimed to investigate radiology professionals’ response to the impact of COVID-19 on professional practice. In addition, the fear and anxiety levels experienced by this workforce during the pandemic process were investigated. Methods: A quantitative cross-sectional study was conducted. The questionnaire covered information on demographic characteristics, the Coronavirus Overviews and Impacts, the Coronavirus Anxiety Scale (CAS), and the Fear of COVID-19 Scale. Logistic regression was used to model the relationship between \"CAS\" and \"Fear\" scores and variables. Data collected was analysed using the Statistical Package for Social Sciences (v.24). Results: A total of 290 responses were received, comprising 21.7% radiologists and 78.3% technicians. The key contributor factors to work-related stress were found to be the fear of COVID-19 infection, with 63.8%, the increase in workload, with 17.6% and inadequate personal protective equipment (PPE), with 11%. The percentages of anxiety were 75.6% for technician and 24.4% for radiologist. It was found that there was a significant association between \"CAS\" score and the gender variable (p=0.030<0.05), and similarly, between \"Fear\" score and gender (p-value=0.003) and age (p-value=0.080) variables. The women are 2.205 times more likely to be anxious than men (p=0.033) and 2.106 times more likely to be fear (p=0.003). Conclusion: Almost half of the participants reported adequate PPE availability during the study period. Despite this, most feared being infected with COVID-19. Therefore, it is important to provide timely and adequate personnel training, adequate availability of PPE and regular psychosocial support for radiology professinals, during future pandemics.Article Citation - WoS: 1Citation - Scopus: 1Characterization of the Chemical and Structural Modifications Induced by X Rays on the Hema Based Polymer Gel(Institute of Physics, 2024) Alkan T.; Seki Y.; Yurt A.The use of polymer gels in the radiation dosimetry field is rapidly increasing due to the possibility of 3 dimensional (3D) dosimetry. The aim of this study is to produce a new polymer gel with high dose sensitivity. This involved the production of polymer gel compositions containing different percentages of 2-hydroxyethyl methacrylate (HEMA) monomer and Di(ethylene glycol) dimethacrylate (DEGDMA) and 1-Vinyl-2-pyrrolidinone (VP) crosslinkers and these gels were irradiated with radiation dose between 0.5 Gy to 11 Gy, using 6 MV X-ray energy of the medical linear accelerator. The degree of polymerization was assessed by using magnetic resonance imaging (MRI) based on the R2-dose response. Then, Fourier Transform Infrared Spectroscopy (FTIR) analysis and Scanning Electron Microscope (SEM) images of the gels were taken. Polymer gels consisting of DEGDMA as crosslinker and Tetrakis (Hydroxymethyl) phosphonium chloride (THPC) as antioxidant were found to have a potential for use in radiation therapy dosimeter. The concentration of HEMA showing the most effective dose response was identified as 12 wt%. It was found that HEMA polymer gels containing DEGDMA crosslinker provide a better dose response than HEMA and HEMA-VP normoxic polymer gels. © 2024 The Author(s)Article Investigation of Glass Ceiling Syndrome Among Radiation Professionals: a Comparative Analysis(Dokuz Eylul Univ inst Health Sciences, 2025) Şişman, Gizem; Çilengiroğlu, Özgül Vupa; Alkan, TurkanBackground and Purpose: This study investigates the perception of the glass ceiling syndrome among radiology, nuclear medicine, and radiation oncology technicians in healthcare institutions in Turkey. Methods: A comparative approach was used to examine the prevalence and impact of the glass ceiling on female workers. Data was collected via questionnaires from 311 participants in Turkey, and analyzed using descriptive statistics, chi-square analysis, and independent sample tests. Results: The results indicate that 78.1% of the participants were women, 64% were medical imaging technicians and 65.3% were employed in private institutions. A significant difference was found in the total and subscale scores of the glass ceiling scale (excluding mentoring) based on gender (p<0.05). Conclusion: This study enhances understanding of gender dynamics among radiation workers and highlights the need for targeted interventions to address the glass ceiling syndrome. The findings provide key insights for promoting workforce equity and organizational development in healthcare institutions.Article Citation - WoS: 6Citation - Scopus: 6Geological and Geostatistical Modeling of Indoor Radon Concentration in • Buildings of Izmir Province (Western Turkey)(Elsevier Science Ltd, 2024) Zeybek, Mutlu; Alkan, TuerkanRadon is a carcinogenic gas that cannot be detected by the five senses and poses a significant health threat, particularly in the form of lung cancer, to individuals living in all enclosed buildings worldwide. The aims of this study are to (1) measure Indoor Radon Concentrations (IRCs) in 117 buildings in I(center dot)zmir, Turkey, (2) investigate and model the relationship between the IRCs and Geological Units (GUs) and Active Faults (AFs), and (3) compare the IRC values with the European Indoor Radon Reference Level (EIRRL) (200 Bq/ m3) to identify areas that pose a potential health risk for lung cancer due to elevated Indoor Radon Levels (IRLs). The IRCs were measured using Solid State Nuclear Track Detectors (SSNTDs) in 117 buildings. These measurements were conducted between February 2013 and March 2013. The IRCs were visualized on a map along with the GUs and AFs, and a geological cross-section was generated from the data represented on this map. The IRCs in 117 buildings were geostatistically modeled in conjunction with AFs. Generally, the highest IRCs were found in locations proximal to AFs, with an increase in IRLs observed parallel to the AFs's directions. The highest IRC (487 Bq/m3) was recorded in a building located on alluvium derived primarily from volcanic rocks, whereas the lowest concentration (28 Bq/m3) was observed in a building situated on alluvium predominantly derived from sedimentary rocks. The statistical parameters (minimum: 28 Bq/m3, maximum: 487 Bq/m3, arithmetic mean: 210 Bq/m3) of the IRCs were established. In I(center dot)zmir, IRCs in 59 out of 117 buildings, representing approximately 50% of the sampled structures, were found to exceed the recommended EIRRL of 200 Bq/m3. It is imperative that IRCs in all enclosed buildings be regularly and periodically monitored by relevant authorities, and mitigation measures should be implemented in locations where IRLs exceed the threshold value of 200 Bq/m3.Article Citation - WoS: 5Citation - Scopus: 5Probabilistic Risk Assessment of Radiotherapy Application(Edp Sciences S A, 2022) Ozbay, C.; Alkan, Türkan; Yigitoglu, A. Guler; Bayburt, M.The recent rapid development and increasing complexity of radiotherapy devices and applications has increased the importance of correct and safe treatment. Risk management is very important in radiotherapy (RT), because incorrect treatment can have serious consequences in terms of mortality or morbidity. However, there are currently few studies on risk analysis in RT. This quantitative and qualitative study of the radiotherapy system (all radiotherapy process) uses the fault tree method, one of the probabilistic risk assessment methods in radiotherapy applications, which is used to devise accident preventive actions. First of all, RT applications were divided into simulation, treatment planning and treatment delivery. For each, work flow charts were determined, and fault trees were created in SAPHIRE (Systems Analysis Programs for Hands-on Integrated Reliability Evaluations) software. Fault probabilities were determined using the expert judgment method. This analysis allowed the identification of the weak points of the system, both qualitatively and quantitatively. The analyzes also revealed that there was a 0.5% occurrence probability of a top event, determined as an incorrect dose or dose distribution in RT. It was determined that the greatest contribution to this probability value was matching error with image guidance, 7.88%. Fault tree analysis (FTA) was found to facilitate a detailed examination of the radiotherapy system. After the risk analysis, the appropriate quality control method for weak points should be determined and implemented for safety management in radiotherapy.Article Geogenic Determinants of Indoor Radon Exposure in İzmir (West Türkiye)(Pergamon-Elsevier Science Ltd, 2026) Alkan, Turkan; Simsek, Celalettin; Sac, Murat; Uzelli, Taygun; Taskin, NurcihanRadon, a naturally occurring product of uranium decay, is the second leading cause of lung cancer. I(center dot)zmir Province in western T & uuml;rkiye, situated within the Aegean extensional regime, comprises complex fault-bounded basins that favor indoor radon accumulation. This study evaluates the spatial variability and geogenic controls of indoor radon to delineate radon-prone zones with public-health relevance. Indoor radon was measured in 79 dwellings distributed across major lithologies and structural settings; detectors were deployed in basements to capture soil-gas infiltration. Concentrations ranged from 12 to 366.5 Bq/m3 (mean 118 Bq/m3), exceeding the national average of 81 Bq/m3; 32 % of sites surpassed the EPA action level of 148 Bq/m3. Highest values cluster in Bornova, Buca, and Kemalpas, a, coincident with fault-controlled sedimentary basins and permeable units. Spatial mapping highlights the dominant influence of lithology and fault proximity on radon distribution and underscores the limitations of uniform, national-scale mitigation policies. We advocate targeted, geology-aware health policies and urban-planning measures for monitoring and mitigation in geogenically vulnerable districts. These findings contribute to medical geology by providing region-specific evidence of radon risk in one of T & uuml;rkiye's most seismically active metropolitan areas. These outputs provide decision-ready evidence for monitoring, mitigation, and building-code updates in seismically active metropolitan settings.
