JIF Jurnal Ilmu Fisika最新文献_第3页

egs++: Optimization of Simulation Transport Parameters egs++:模拟传输参数的优化

JIF Jurnal Ilmu Fisika Pub Date : 2023-03-07 DOI: 10.25077/jif.15.1.66-72.2023

S. Yani

{"title":"egs++: Optimization of Simulation Transport Parameters","authors":"S. Yani","doi":"10.25077/jif.15.1.66-72.2023","DOIUrl":"https://doi.org/10.25077/jif.15.1.66-72.2023","url":null,"abstract":"MC transport parameters used are common to all egs++ applications. The eﬀect of each transport parameter need to understand to optimize the simulation process. Therefore, the purpose of this study was to investigate the efficiency of egs++ simulation for different transport parameters in water phantom. This water phantom has built using slab. Collimated source defined 100 cm above the phantom. The simulation parameters such as the efficiency, statistical uncertainty, and accuracy of selecting transport parameters such as electron and photon cut-oﬀ energies, spin eﬀects, atomic relaxations, and bound Compton scattering was investigated. The selection of ECUT and PCUT greatly affects the simulation time. The simulation time, efficiency and energy fractions have same value for varied ECUT except for 0.521 MeV. The energy fraction have been shifted but the simulation time and efficiency were same. Turning on spin effects in this simulation increases simulation time by 25%. The simulation time increases by about 15% when relaxations are turned on. The more accurate result of deposited energy using EGSnrc algorithm is about 30% slower than the less accurate PRESTA-I algorithm. Therefore, The optimization of transport parameters is needed in the simulation of egs++ to provide the best efficiency.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46572301","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

Analysis of Skin Protection from the Dangers of Sun Exposure Using Color Variations and Types of Cotton Fabrics 使用颜色变化和棉织物类型对皮肤防晒的危害分析

JIF Jurnal Ilmu Fisika Pub Date : 2023-03-05 DOI: 10.20527/flux.v20i1.15172

Norliani Norliani, Mislan Mislan, Pratiwi Sri Wardani, E. Putri

{"title":"Analysis of Skin Protection from the Dangers of Sun Exposure Using Color Variations and Types of Cotton Fabrics","authors":"Norliani Norliani, Mislan Mislan, Pratiwi Sri Wardani, E. Putri","doi":"10.20527/flux.v20i1.15172","DOIUrl":"https://doi.org/10.20527/flux.v20i1.15172","url":null,"abstract":"Cotton fabric is a comfortable clothing material to wear in tropical climates. In addition to the comfort aspect, cotton cloth is expected to be able to protect the skin from the dangers of sun exposure. This research was conducted with the aim of knowing the optimum amount of protection produced by cotton cloth, determining the type and color of cotton cloth that is most effectively used as a protector, and knowing the SPF (sun protection factor) value category based on the type and color of cotton cloth. This study used three types of cotton cloth, each consisting of four colors, as well as a Digital Environment Multimeter which was used to measure the intensity of sunlight in units of lux. The protection value is obtained by comparing the intensity of sunlight without a cotton cloth protector (lux) with the intensity of sunlight using a cotton cloth protector (lux). The results obtained show that the most optimum protection value is found in black toyobo cotton cloth with an SPF value of 54.4 and a transmittance of 1.8%. The cotton fabrics that provided the most effective protection based on type and color were black and blue toyobo, medina and Japanese cotton fabrics. Based on the SPF value obtained, it can be seen that black and blue toyobo cotton fabrics, and black madinah cotton fabrics have a very good protection category. The black and blue Japanese cotton fabrics, as well as the blue medina type, have a good protection category, while the orange Toyobo cotton fabrics have a sufficient protection category.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78494458","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

Utilization of Solar Panels as a Source of Electrical Energy in Alternating Current (AC) Water Pump 太阳能电池板在交流水泵中作为电能来源的应用

JIF Jurnal Ilmu Fisika Pub Date : 2023-03-02 DOI: 10.20527/flux.v20i1.14421

Masthura Masthura, A. Armansyah

引用次数: 0

Analysis of Mechanical Properties of Bioplastics Based on Banana Peel Starch with Variations of Rice Straw Cellulose 香蕉皮淀粉基生物塑料力学性能分析及秸秆纤维素的变化

JIF Jurnal Ilmu Fisika Pub Date : 2023-03-01 DOI: 10.20527/flux.v20i1.14067

Ety Jumiati, Miftahul Husnah, S. Lestari

引用次数: 0

Analysis of Mineral Characteristics of Leang Lonrong Cave Ornaments in The Pangkep Karst Area, South Sulawesi, Bantimurung Bulusaraung National Park Bantimurung buusaraung国家公园南苏拉威西邦克普喀斯特地区梁龙荣洞穴饰品矿物特征分析

JIF Jurnal Ilmu Fisika Pub Date : 2023-01-15 DOI: 10.20527/flux.v19i3.14329

N. Ms, M. Arsyad, Agus Susanto

引用次数: 0

Analysis of Tc99m MDP Radiopharmaceuticals in the Spinal Areas of Breast Cancer Patients 乳腺癌患者脊柱区Tc99m - MDP放射性药物含量分析

JIF Jurnal Ilmu Fisika Pub Date : 2023-01-15 DOI: 10.20527/flux.v19i3.12900

Desty Anggita Tunggadewi, Syefira Lupita Azmi, B. Santosa

引用次数: 0

Magnetic Resonance Imaging (MRI) Safety in Pregnant (A Literature Review) 妊娠期磁共振成像(MRI)安全性(文献综述)

JIF Jurnal Ilmu Fisika Pub Date : 2023-01-15 DOI: 10.20527/flux.v19i3.14796

Ramacos Fardela, Suci Ramda Rena, Atika Maulida, F. Diyona

{"title":"Magnetic Resonance Imaging (MRI) Safety in Pregnant (A Literature Review)","authors":"Ramacos Fardela, Suci Ramda Rena, Atika Maulida, F. Diyona","doi":"10.20527/flux.v19i3.14796","DOIUrl":"https://doi.org/10.20527/flux.v19i3.14796","url":null,"abstract":"Radiation is a beam of energy that comes from particles or photons. Based on the ability to ionize matter, radiation can be grouped into non-ionizing radiation and ionizing radiation. Ionizing radiation is radiation that can ionize the matter through which it passes. Ionizing radiation has proven useful in medicine. However, exposure to potential ionizing radiation can cause negative effects for health and heredity (genetic). Ionizing radiation also cannot be observed directly so a nuclear detector is needed as a radiation monitoring device. Medical imaging commonly used in pregnancy is Ultrasonography (USG) and Magnetic Resonance Imaging (MRI). MRI is one of the modalities in medical imaging that utilizes a magnetic field. The use of MRI during pregnancy is on the rise, because it has the ability to produce clear images of cross-sectional anatomy without ionizing radiation. Until now there has been no research that shows the dangers of using MRI for pregnancy. So that through this literature study it is hoped that the reader will be able to understand the available evidence regarding the safety of MRI during pregnancy. This literature study was carried out by the authors by collecting information or studies from previous researchers regarding the safety of using MRI in pregnancy and its effects on the fetus. In addition, the author also attaches some evidence stating that the use of MRI can be said to be safe for pregnancy, because it does not use ionizing radiation so there are minimal side effects.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":"89 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73726453","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

Development of Measuring Instruments for Lung Vital Capacity and Human Respiratory Rate Based on Fiber Optic Sensors 基于光纤传感器的肺肺活量和呼吸频率测量仪的研制

JIF Jurnal Ilmu Fisika Pub Date : 2022-12-30 DOI: 10.25077/jif.15.1.39-47.2023

Mega Roza Lia, Harmadi Harmadi, Afdhal Muttaqin

{"title":"Development of Measuring Instruments for Lung Vital Capacity and Human Respiratory Rate Based on Fiber Optic Sensors","authors":"Mega Roza Lia, Harmadi Harmadi, Afdhal Muttaqin","doi":"10.25077/jif.15.1.39-47.2023","DOIUrl":"https://doi.org/10.25077/jif.15.1.39-47.2023","url":null,"abstract":"The development of measuring instruments for vital lung capacity and human respiratory rate based on the fiber-optic sensor has a system consisting of a laser diode as a light source, optical fiber as a waveguide, and OPT101 as a photodetector. This research consists of three stages: hardware design, software design, and data analysis. Each component used is tested and then tested on the entire system to determine each component's performance when used together. In the software system, the analog signal in the form of voltage from OPT101 is converted into an ADC value by an analog-to-digital converter. Based on the ADC value obtained, the threshold value is determined as the threshold for reading the respiratory rate. The number of ADC values during the measurement of vital lung capacity is then converted to volume. Testing of measuring instruments is carried out by comparing the results of instruments developed with a standard medical measuring device. The results of the tests and analyses that have been carried out have obtained an accuracy value of 92.62% for the measurement of vital lung capacity, 95.14% for the measurement of respiratory rate, and 92.62% for the measurement of the respiratory rate of variations in activity.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44167694","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

Dosimetry Verification of Anisotropic Analytical Algorithm (AAA) In Eclipse Treatment Planning System (TPS) Based on Multileaf Collimator Variations 基于多叶准直变化的食相治疗计划系统(TPS)中各向异性分析算法(AAA)的剂量学验证

JIF Jurnal Ilmu Fisika Pub Date : 2022-12-30 DOI: 10.25077/jif.15.1.48-55.2023

Fadillah Ahmad, Afdhal Muttaqin, D. Fitriyani, Ridwan Ridwan

{"title":"Dosimetry Verification of Anisotropic Analytical Algorithm (AAA) In Eclipse Treatment Planning System (TPS) Based on Multileaf Collimator Variations","authors":"Fadillah Ahmad, Afdhal Muttaqin, D. Fitriyani, Ridwan Ridwan","doi":"10.25077/jif.15.1.48-55.2023","DOIUrl":"https://doi.org/10.25077/jif.15.1.48-55.2023","url":null,"abstract":"Dosimetry verification of anisotropic analytical (AAA) algorithms based on variations of the multileaf collimator has been investigated using the Eclipse Treatment Planning System. This study used a 0.6cc ionization chamber farmer detector and Linac Clinical CX variant equipped with TPS Eclipse with AAA. This study used 6 MV energy and 2 Gy dose. The multileaf collimator was varied into six groups with the size (A, B, C, D, E, F) of the irradiation field used 20 cm x 20 cm. The measurement results were a dose deviation value or a dose ratio presentation in each irradiation area. The dose deviation of the multileaf collimator variation was A 0.86% for each group. Group B had 6.8%, Group C had -0.43%, Group D had 0.73%, Group E had 1.11%, and Group F had 0.84%. The mean dose deviation value for all multileaf collimator forms was 1.67%, where this value is within the tolerance value recommended by ICRU, namely 3-5%. The p-value in the Analysis of variance (ANOVA) for the entire group was 0.00. This data shows that there is no effect of variation in the multileaf collimator on the dose given.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48820445","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 Corrosion Inhibition through the Adsorption of Cacao (Theobroma cacao) Peels Extract on Steel Surfaces: Experimental and DFT Results 通过吸附可可(可可)皮提取物在钢表面的缓蚀:实验和DFT结果

JIF Jurnal Ilmu Fisika Pub Date : 2022-12-30 DOI: 10.25077/jif.15.1.56-65.2023

Apriska Prameswari, D. Dahlan, Y. Yetri, Imelda

{"title":"A Corrosion Inhibition through the Adsorption of Cacao (Theobroma cacao) Peels Extract on Steel Surfaces: Experimental and DFT Results","authors":"Apriska Prameswari, D. Dahlan, Y. Yetri, Imelda","doi":"10.25077/jif.15.1.56-65.2023","DOIUrl":"https://doi.org/10.25077/jif.15.1.56-65.2023","url":null,"abstract":"Steel surface coating has been carried out using the immersion method in an inhibitor of cacao (Theobroma cacao) peel extract for 24, 72, 120, and 168 hours. The corrosion treatment was performed using HCl with different immersion time of 48, 96, and 144 hours after coating process with the inhibitor. Corrosion testing with the weight loss method gave the best results with the lowest corrosion rate of 0.2972 mg.cm2/hour and inhibition efficiency of 74.7128% for steel samples with the longest immersion time in inhibitor. Optical microscopy and SEM images indicated that the longer the immersion time in the inhibitor, the better (i.e., fewer holes and cracks) the surface morphology of the steel. The appearance of four sharp peaks in the XRD diffractogram indicated that the samples with the lowest corrosion rate produced Fe and C crystalline phases due to the reaction between the steel surface and the inhibitor. A quantum chemical analysis using the DFT (Density Functional Theory) method also produced a fairly high inhibition efficiency and was close to the experimental results of 80.2098%.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43243645","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