Buletin Fisika最新文献_第3页

Pengaruh Meja Pasien Terhadap Dosis Serap Pesawat Co-60 Di Instalasi Radioterapi RSUP Sanglah 在RSUP Sanglah放射治疗装置面对Co-60合适剂量的患者台经理

Buletin Fisika Pub Date : 2022-05-04 DOI: 10.24843/bf.2023.v24.i02.p08

Ni Wayan Diana Ekayani, G. N. Sutapa, I. W. Balik Sudarsana

{"title":"Pengaruh Meja Pasien Terhadap Dosis Serap Pesawat Co-60 Di Instalasi Radioterapi RSUP Sanglah","authors":"Ni Wayan Diana Ekayani, G. N. Sutapa, I. W. Balik Sudarsana","doi":"10.24843/bf.2023.v24.i02.p08","DOIUrl":"https://doi.org/10.24843/bf.2023.v24.i02.p08","url":null,"abstract":"Telah dilakukan penelitian untuk mengetahui pengaruh pemasangan meja pasien terhadap dosis serap pada pesawat Co-60 merk NPIC-GWXJ80 di Instalasi Radioterapi RSUP Sanglah Denpasar. Pengukuran dosis radiasi merupakan salah satu bagian dari Quality Control (QC) pesawat radioterapi. Pengukuran dilakukan sesuai dengan protokol TRS 398 IAEA, menggunakan phantom slab dengan tebal 10 cm, dosis 200 cGy, source to surface distance (SSD) 80 cm dengan sudut penyinaran 00 (posisi anteroposterior/AP) dan 1800 (posisi posteroanterior/PA). Perhitungan dosis serap radiasi dilakukan menggunakan worksheet Microsoft Excel TRS 398. Hasil pengukuran menunjukkan bahwa dosis serap dengan pemasangan meja pasien lebih kecil dibandingkan dengan tanpa pemasangan meja pasien. Deviasi dosis serap pada pengukuran AP, PA tanpa meja dan PA dengan meja secara berurutan yaitu 1,24%, 1,48% dan 5,04%. Deviasi dosis serap pada pengukuran PA dengan meja melebihi batas toleransi yang ditetapkan oleh IAEA yaitu ±5%, sehingga perlu dilakukan perhitungan faktor koreksi untuk meja pasien. Nilai faktor koreksi meja pasien adalah 0,97 dengan waktu penyinaran terkoreksi yaitu 1,56 menit. Deviasi dosis serap berdasarkan hasil pengukuran dan perhitungan menggunakan waktu penyinaran terkoreksi yaitu 2,35%, sehingga keluaran pesawat Co-60 telah sesuai dengan standar TRS 398 IAEA dan layak digunakan.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47908424","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 Smoke Distribution in the Nusa Tenggara Islands Due to Forest and Land Fires 努沙登加拉群岛森林和陆地火灾引起的烟雾分布分析

Buletin Fisika Pub Date : 2022-03-06 DOI: 10.24843/bf.2023.v24.i02.p07

Ryan Juliston Pangihutan Simanjuntak, K. N. Suarbawa, I. K. Putra

引用次数: 0

Analysis of Cervical Cancer Tissue Using Raman Spectroscopy 宫颈癌症组织的拉曼光谱分析

Buletin Fisika Pub Date : 2022-02-20 DOI: 10.24843/bf.2023.v24.i02.p06

Rio Saputra, Ida Bagus Made Suryatika, N. Wendri

{"title":"Analysis of Cervical Cancer Tissue Using Raman Spectroscopy","authors":"Rio Saputra, Ida Bagus Made Suryatika, N. Wendri","doi":"10.24843/bf.2023.v24.i02.p06","DOIUrl":"https://doi.org/10.24843/bf.2023.v24.i02.p06","url":null,"abstract":"Cervical cancer tissue analysis has been carried out using Raman Spectroscopy. The purpose of this study was to determine the effect of differences in power level and exposure time on the Raman spectrum pattern and to determine the power level and exposure time that can be used as a standard to distinguish normal and cancer cervical tissue spectrum patterns. This study used histological preparations of cancerous and normal cervical tissue. The preparations were made in the Anatomical Pathology Laboratory of Sanglah Hospital and the Bali Branch of the Indonesian Cancer Foundation. Samples were treated with power levels of 300 and 400 mW, with exposure times of 3000 and 4000 ms at a wavelength of 1064 nm. The resulting spectrum is then analyzed to be used as a standard in differentiating the spectrum pattern of normal and cancerous cervical tissue. Raman spectroscopy analysis with power levels of 300 and 400 mW on cervical tissue resulted in differences in intensity and shift in wave number. The maximum intensity difference is 0.211 au and the wavenumber shift is 7.257 cm-1. Analysis of cervical tissue using Raman Spectroscopy with exposure times of 3000 and 4000 ms resulted in a difference in intensity of 0.022 au and a wave number of 1432.834 cm-1. The scanning parameters that can be used as standards are 300 mW and 3000 ms with a maximum intensity of 760.392 and 1220.221 au at wave numbers of 1425.577 and 1432.834 cm-1, respectively.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43038947","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

Comparison of Cervical Cancer Radiation in Bladder Organs with 10 MV LINAC Energy Radiotherapy Using 3DCRT and IMRT Techniques at Sanglah Hospital Denpasar 登巴萨Sanglah医院3DCRT和IMRT技术10毫伏LINAC能量放疗宫颈癌膀胱器官放射的比较

Buletin Fisika Pub Date : 2022-02-09 DOI: 10.24843/bf.2023.v24.i02.p05

Yuli Asri, G. N. Sutapa, I. W. Sudarsana, R. Irhas

{"title":"Comparison of Cervical Cancer Radiation in Bladder Organs with 10 MV LINAC Energy Radiotherapy Using 3DCRT and IMRT Techniques at Sanglah Hospital Denpasar","authors":"Yuli Asri, G. N. Sutapa, I. W. Sudarsana, R. Irhas","doi":"10.24843/bf.2023.v24.i02.p05","DOIUrl":"https://doi.org/10.24843/bf.2023.v24.i02.p05","url":null,"abstract":"A study has been conducted on comparative analysis of cervical cancer radiation to the bladder organ with 10 MV energy LINAC (Linear Accelerator) radiotherapy using the 3DCRT (Three Dimension Conformal Radiotherapy) technique and the IMRT (Intensity Modulated Radiation Therapy) technique at Sanglah Hospital, Denpasar. The 3DCRT and IMRT techniques were compared by analyzing the values ??of the HI (Homogeneity Index), CI (Conformity Index) and radiation dose distribution in the OAR (Organ At Risk), namely the bladder. The data used are 30 cervical cancer patient data with 10 MV photon beam radiotherapy planning and a total radiation dose of 5000 cGy. In calculating the HI and CI values, the data used were radiation dose of 98%, 50%, 2% of target volume and 95% volume on PTV and the average dose on Bladder organs. The data was obtained from the DVH (Dose Volume Histogram) statistics contained in the TPS (Treatment Planning System). The results of the HI value of 0.0818 for the 3DCRT technique and 0.0899 for the IMRT technique with statistical test results obtained the Asimp.Sig (2-tailed) value of 0.056> 0.05 which means it is not significant, while for the results of the CI value of 0.9500 for the 3DCRT technique and 0.9499 for the IMRT technique with statistical test results obtained the Asimp.Sig (2-tailed) value of 0.970> 0.05 which means it is not significant, meanwhile the percentage of the average dose in the bladder organ obtained an average result from the 3DCRT and IMRT irradiation techniques, 96% and 88%, respectively, with statistical test results, the Asimp.Sig (2-tailed) value was 0.000 <0.05, which was significant. Cervical cancer radiation using the IMRT technique is better than the 3DCRT technique because the IMRT technique minimizes the absorbed dose in OAR, it can be seen from the percentage of the average dose in the bladder organ with the IMRT technique getting a smaller dose percentage.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44145039","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

Identifikasi Intrusi Air Laut dengan Metode Geolistrik Konfigurasi Wenner di Daerah Pantai Mertasari Sanur Denpasar 在Mertasari Sanur Denpasar海滩上，用温彻斯特利排媒体方法识别海水入侵

Buletin Fisika Pub Date : 2022-01-26 DOI: 10.24843/bf.2023.v24.i02.p04

Bayu Kurniawan, I. K. Sukrasa, I. Putra

引用次数: 0

Effect of Madden Julian Oscillation (MJO) on Rainfall Anomalies in Bali Province 1991-2020 麦登-朱利安振荡（MJO）对1991-2020年巴厘岛降水异常的影响

Buletin Fisika Pub Date : 2022-01-06 DOI: 10.24843/bf.2023.v24.i02.p03

Oktaviana Nurhayati Murni, I. K. Sukarasa, R. Prasetia, I. M. D. Wiratmaja, Heppy Febrian Abdi Bintari

{"title":"Effect of Madden Julian Oscillation (MJO) on Rainfall Anomalies in Bali Province 1991-2020","authors":"Oktaviana Nurhayati Murni, I. K. Sukarasa, R. Prasetia, I. M. D. Wiratmaja, Heppy Febrian Abdi Bintari","doi":"10.24843/bf.2023.v24.i02.p03","DOIUrl":"https://doi.org/10.24843/bf.2023.v24.i02.p03","url":null,"abstract":"Research has been conducted on the influence of the Madden Julian Oscillation (MJO) phenomenon of rainfall anomalies in Bali Province since 1991-2020. Research aims to figure out the conditions, anomalies, and frequency distributions rainfall in Bali Province during the existence of MJO’s 4 and 5 phase for 1991-2020 a descriptive statistical methods. The data used is daily rainfall data for 1991-2020. The results of observations from the Jembrana Class II Climatology Station and MJO data for phases 4 and 5 which monitor the presence of the MJO. The result of this study is a graph of the average rainfall calculated to inform rainfall conditions during MJO and compared to normal. Based on the results of calculations and data analysis shows Pos Candi Kuning is the post that has the most impact, this is because it has the highest increase in the amount of rainfall than normal with the highest increase of 72 mm/month occurring in March. Then for rainfall anomalies in the form of a positive anomalous percentage graph that causes increased precipitation in Bali Province. The anomaly of positive rainfall is 65% at Pos Candi Kuning. Based on the trend of the distribution of the frequency of rain events on the graph of the distribution of rainfall in the Province of Bali, generally there is an increase, but the period 2001-2005 and 2011-2015 has decreased.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48103383","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

Pengaruh Luas Bidang Penyinaran dan Delay Time Processing Terhadap Exposure dan Deviation Index Computed Radiography AGFA Seri CR10-X AGFA CR10-X系列计算机射线照相曝光和偏差指数的延迟时间处理

Buletin Fisika Pub Date : 2021-12-22 DOI: 10.24843/bf.2023.v24.i02.p02

I. G. E. K. A. Pramartha, N. N. Ratini, Putu Irma Wulandari

{"title":"Pengaruh Luas Bidang Penyinaran dan Delay Time Processing Terhadap Exposure dan Deviation Index Computed Radiography AGFA Seri CR10-X","authors":"I. G. E. K. A. Pramartha, N. N. Ratini, Putu Irma Wulandari","doi":"10.24843/bf.2023.v24.i02.p02","DOIUrl":"https://doi.org/10.24843/bf.2023.v24.i02.p02","url":null,"abstract":"Abstrak – Telah dilakukan penelitian untuk mengetahui pengaruh luas bidang penyinaran dan delay time processing terhadap exposure index (EI) dan deviation index (DI) computer radiografi (CR). Alat bantu yang digunakan berupa phantom skull, imaging plate, grid, dan CR. Faktor eksposi yang digunakan diatur konstan. Untuk mengetahui besar nilai EI dilakukan ekspose dengan variasi luas bidang penyinaran berikut, 25 cm x 25 cm, 25 cm x 28 cm, 28 cm x 30 cm, 30 cm x 36 cm dan 30 cm x 43 cm. Kemudian dilakukan ekspose dengan menggunakan luas bidang penyinaran konstan yaitu 25 cm x 25 cm, namun dilakukan variasi delay time processing sebagai berikut, 5, 10, 15, 20, 25 menit. Nilai EI digunakan untuk mencari nilai DI. Selanjutnya dibuatkan grafik dan dilakukan pengujian berupa uji regresi untuk mengetahui hubungan luas bidang penyinaran terhadap EI dan delay time processing terhadap EI. Dilakukan juga uji analisis jalur untuk mengetahui hubungan luas bidang penyinaran terhadap DI dan delay time processing terhadap DI. Hasil uji regresi menunjukkan luas bidang penyinaran dan delay time processing memiliki pengaruh signifikan terhadap EI. Hasil uji analisis jalur menunjukkan luas bidang penyinaran tidak memiliki pengaruh signifikan terhadap DI, sementara delay time processing dan EI memiliki pengaruh signifikan terhadap DI. \u0000Kata kunci: Exposure index, deviation index, delay time processing, luas bidang penyinaran, computer radiografi","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41551703","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

Analisis Awal Musim Hujan Untuk Penentuan Waktu Tanam Padi Di Kabupaten Jembrana 用于确定Jembrana海角植物生长时间的早期降雨分析

Buletin Fisika Pub Date : 2021-11-25 DOI: 10.24843/bf.2023.v24.i02.p01

Septina Widya Lestari, I. Simpen, A. Setiyoko

引用次数: 0

Pengaruh Konsentrasi Ekstrak Daun Hokianti Mikro (Carmona Retusa) Terhadap Dye Sensitized Solar Cell (DSSC) 面对染料敏化太阳能电池（DSSC）的Micro-hocking leaves（Carmona Retusa）提取物浓度管理器

Buletin Fisika Pub Date : 2021-11-16 DOI: 10.24843/bf.2023.v24.i01.p09

Kadek Ayu Rahmanuca Sabathiningsih, I. B. Adnyana, Nita Trisnawati

{"title":"Pengaruh Konsentrasi Ekstrak Daun Hokianti Mikro (Carmona Retusa) Terhadap Dye Sensitized Solar Cell (DSSC)","authors":"Kadek Ayu Rahmanuca Sabathiningsih, I. B. Adnyana, Nita Trisnawati","doi":"10.24843/bf.2023.v24.i01.p09","DOIUrl":"https://doi.org/10.24843/bf.2023.v24.i01.p09","url":null,"abstract":"Telah dilakukan penelitian tentang fabrikasi DSSC menggunakan daun Hokianti mikro (carmona retusa) sebagai dye alami berbasis antosian. DSSC dibuat dengan menggunakan semikonduktor TiO2 yang dilapiskan pada kaca konduktif Indium Tin Oxide (ITO) dengan variasi konsentrasi dye daun Hokianti mikro sebesar 60, 75 dan 90 mg/mL dan variasi warna lampu penyinaran pada DSSC yaitu merah, orange, hijau, biru dan putih. Pada penelitian ini, hasil karakterisasi dengan spektofotometer FTIR menunjukkan bahwa sampel mengandung gugus fungsi cincin aromatik yang berperan sebagai antosianin. Analisis dengan SEM memperlihatkan morfologi permukaan sampel terdapat tumpukan butiran-butiran dengan batas-batas yang jelas sehingga dapat diperoleh ukuran diameter butiran sekitar (54,13±0,62)?m. Karakterisasi dye sampel dengan menggunakan spektrofotometer UV-Vis pada tiga konsentrasi 60, 75 dan 90 mg/mL menyerap cahaya pada daerah UV yaitu pada rentang panjang gelombang 200-400 nm dengan nilai absorbansi berturut-turut sebesar 0,4271, 0,4275 dan 0,5449. Nilai absorbansi maksimum terjadi pada konsentrasi 90 mg/mL yaitu sebesar 0,5449. Hasil karakterisasi I-V menunjukkan bahwa variasi konsentrasi dye sampel sebesar 60, 75 dan 90 mg/mL berpengaruh terhadap nilai efisiensi DSSC dengan nilai efisiensi tertinggi pada warna lampu merah, orange, hijau, biru dan putih berturut-turut 0,272%, 1,008%, 1,536%, 1,632% dan 2,080%. Nilai efisiensi maksimum terjadi pada konsentrasi 90 mg/mL yang disinari warna lampu putih sebesar 2,080%.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42456316","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

Laju Paparan Radiasi Sinar-X pada Dinding Laboratorium Diagnostik ATRO Bali ATRO巴厘岛诊断实验室墙上的X射线显示层

Buletin Fisika Pub Date : 2021-11-12 DOI: 10.24843/bf.2023.v24.i01.p07

Nunung Purwati Dewi, N. Trisnawati, Maghfirotul Iffah

引用次数: 0