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All Journal Jurnal Kimia (Journal of Chemistry) Buletin Udayana Mengabdi BULETIN FISIKA Kappa Journal
Ida Bagus Made Suryatika
Program Studi Fisika, Fakultas Matematikadan Ilmu Pengetahuan Alam, Universitas Udayana, Jimbaran, Bali, 80361
Astronomy Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Environmental Science Materials Science & Nanotechnology Physics Other

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Identifikasi Kandungan Logam Pada Sampel Air Dari Sumber Air Panas Alam Di Ulumbu Desa Wewo Kecamatan Satar Mese Kabupaten Manggarai Tengah Helena Idah; Ida Bagus Made Suryatika; Ida Bagus Alit Paramarta; A.A. Ngurah Gunawan; Nyoman Wendri; Ni Nyoman Rupiasih
BULETIN FISIKA Vol 25 No 1 (2024): BULETIN FISIKA February Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2024.V25.i01.p13

Abstract

Tests have been conducted on the metal content of Calcium (Ca), Magnesium (Mg), Iron (Fe), Zinc (Zn), Copper (Cu), and Timbal (Pb), on samples of natural hot water Ulumbu Wewo Village Satar Mese Central Manggarai Regency. The research was conducted at the Joint Laboratory of the Faculty of MIPA Udayana University using Atomic Absorption Spectrometry (AAS). The data of the study showed samples of hot water from hot water bathing attractions in Ulumbu Village Wewo Satar Mese District of Central Manggarai Regency contain Ca, Mg, Fe, Zn, Cu, Pb which at each point was different. Calcium content at point 1: 1.6001 mg/L, point 2: 26.9995 mg/L. point 3: 22.3959 mg/L, point 4: 1.1805 mg/L, and point 5: 6.7990 mg/L; magnesium content at point 1: 9.8199 mg/L, point 2: 5.5111 mg/L, point 3: 3.2000 mg/L, point 4: 5.6998 mg/L, and point 5: 8.5598 mg/L; iron content at point 1: 71.8500 mg/L, point 2: 28.7231 mg/L, point 3: 14.3057 mg/L, point 4: 59.3206 mg/L, and point 5: 64.1108 mg/L; the zinc content was only found at point 1 of: 0.5423 mg/L; copper content at point 1: 1.9899 mg/L, point 2: 0.4967 mg/L, point 3: 0.5701 mg/L, point 4: 0.8975 mg/L, and point 5: 1.4201 mg/L and lead content at point 1: 2.7687 mg/L, point 2: 3.8499 mg/L, point 3: 4.4291 mg/L, point 4: 4.8486 mg/L, and point 5: 5.7186 mg/L.
Penentuan Dosis Efektif Pada Abdo Pelvis dan Organ Kritis dari Hasil Penyinaran Computed Tomography Scanner (CT Scan) I Gusi Putu Gede Oktar Mahardika; Ida Bagus Made Suryatika; I Ketut Putra; Rozi Irhas
Kappa Journal Vol 7 No 2 (2023): Agustus
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i2.7676

Abstract

Determination of the effective dose on the abdo pelvis and organs at risk has been carried out from the results of the CT Scan irradiation at Sanglah General Hospital.The study began by collecting secondary data from the results of an abdominal CT scan, namely the CTDIvol and DLP values. Then the data was grouped based on gender of 40 patients with an age range of 20-70 years. The value of the effective dose in the abdo pelvis is obtained by multiplying the DLP value and the conversion coefficient k. While the effective dose to organs at risk is obtained from the product of the CTDIvol and wt. The results of the effective dose in the abdo pelvis were obtained in the range of 4.596-6.738 mSv for male patients while for female patients it was 4.209-5.232 mSv. The results of the effective dose in the abdo pelvis are still at the threshold set by BAPETEN, which is 13.275 mSv, so the CT scan is still suitable for use. Average effective dose values for critical organs were 0.2882 mSv for the liver, 0.8646 mSv for the kidney, and 0.5764 mSv for the gonad. The highest dose was received by the gonads. This shows that the gonads are the organs that have the highest sensitivity in receiving radiation doses in the abdo pelvis
Analisis Peak Ground Accerelation (PGA) di Kabupaten Karangasem Menggunakan Pendekatan Empiris Masitah, Siti; Sukarasa, I Ketut; Dedy Pratama, I Putu; Yuliara, I Made; Suryatika, Ida Bagus Made; Kasmawan, I Gde Antha
Kappa Journal Vol 9 No 1 (2025): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v9i1.28647

Abstract

Kabupaten Karangasem merupakan bagian dari busur kepulauan Sunda Kecil yang terbentuk akibat proses subduksi lempeng Indo-Australia kebawah lempeng Eurasia sehingga menyebabkan daerah tersebut rawan bencana gempabumi. Penelitian ini bertujuan untuk menentukan nilai peak ground acceleration (PGA) di Kabupaten Karangasem menggunakan rumus empiris terpilih. Data yang digunakan adalah data skunder yang diperoleh dari alat accelerograph tahun 2019-2023 dan data dari katalog BMKG tahun 1972-2022. Dalam menentukan nilai PGA digunakan metode empiris Donovan (1973), Esteva (1970), Mc.Guirre (1963), Fukushima Tanaka (1990), Setiawan (2012). Pada hasil penelitian menunjukkan bahwa rumus empiris Donovan cocok untuk diterapkan di Kabupaten Karangasem. Kabupaten Karangasem bagian timur memiliki tingkat bahaya bencana gempabumi paling besar dengan skala Intensitas VI MMI mencakup Kecamatan Karangasem dan Kecamatan Abang dengan nilai PGA tertinggi yaitu 96 gals.
Analisis Distribusi Dosis Radiasi terhadap Perencanaan Radioterapi Menggunakan Metode Segmentasi Citra pada Kasus Tumor Otak dengan Teknik Intensity Modulated Radiation Therapy (IMRT) Saputri, Izza Wahyu Saputri; Suryatika, Ida Bagus Made; Amelia, Cory; Sandi, I Nengah; Sumadiyasa, Made; Widagda, I Gusti Agung; Irhas, Rozi
Kappa Journal Vol 9 No 1 (2025): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v9i1.29562

Abstract

A study has been conducted on the effect of the number of segments on the radiation dose distribution of photon beams in brain tumor cases using the Intensity Modulated Radiation Therapy (IMRT) technique. This study used 20 primary data and 10 secondary data from brain tumor patients with 6 MV photon beams and a total dose of 6000 cGy. Calculations were performed by analyzing the Homogeneity Index (HI) and Conformity Index (CI) values as well as the radiation dose to the Organs at Risk (OAR), followed by statistical testing. Based on the conducted research, the results showed that HI and CI values for 5, 10, and 15 segments were different. For example, the HI value for 5 segments was more homogeneous, approaching 0, and the CI value for 10 segments was closer to 1, which indicates a better match with the PTV shape. The average maximum dose distribution for OARs with 5 segments in the brainstem, chiasma, left eye, right eye, left lens, and right lens were 4541.9 cGy, 3893.8 cGy, 2754.2 cGy, 2516.1 cGy, 740.8 cGy, and 628.0 cGy, respectively. With 10 segments, the doses for these OARs were 4104.2 cGy, 3633.9 cGy, 2583.9 cGy, 3124.2 cGy, 710.5 cGy, and 625.5 cGy, respectively. With 15 segments, the doses for the same OARs were 4123.0 cGy, 3956.2 cGy, 2753.3 cGy, 2433.7 cGy, 667.7 cGy, and 547.8 cGy, respectively. All maximum dose distributions for the OARs received by the patients were still within the tolerance limits stated in the Radiation Oncology A Question-Based Review 2nd Edition.
Co-Authors A.A. Ngurah Gunawan Adnyana, I Gusti Agung Putra Anak Agung Intan Rahmasari Asni Mulyati Jeni Cory Amelia Dedy Pratama, I Putu Gusti Ngurah Sutapa Helena Idah I Gde Antha Kasmawan I Gusi Putu Gede Oktar Mahardika I Ketut Putra I M. S. Wibawa I Made Sutha Negara I Nengah Sandi I Nengah Simpen I Nyoman Sumerta Miwada I Wayan Balik Sudarsana I Wayan Putu Sutirta Yasa I Wayan Supardi I.D.M.B.A. Darmawan I.K.A. Mogi I.W. Sumarjaya Ida Bagus Alit Paramarta Ida Bagus Putra Manuaba Irhas, Rozi Karel Yesaya Mbaba Lailatul Nuzzulul Safitri Made Sumadiyasa Ni Kadek Nova Anggarani Ni Nyoman Rupiasih Ni Nyoman, Ratini Nyoman Wendri Nyoman Wendri Poniman, S. Poppy Intan Tjahaja R. Dalem Rio Saputra Rozi Irhas Saputri, Izza Wahyu Saputri Selvi Marcellia Shatriani Wulandary Sipul Sukarasa, I Ketut Widagda, I Gusti Agung Yuliara, I Made