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All Journal BERKALA FISIKA Pedagogi: Jurnal Ilmu Pendidikan PRISMA FISIKA Jurnal Visi Ilmu Pendidikan YOUNGSTER PHYSICS JOURNAL Jurnal Mahasiswa Teknologi Pendidikan (JMTP) Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Fisika Unand Lentera Pustaka Jurnal Ilmiah Arena Tekstil QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) ELSE (Elementary School Education Journal) : Jurnal Pendidikan dan Pembelajaran Sekolah Dasar JMM (Jurnal Masyarakat Mandiri) Journal of Physics and Its Applications International Journal of Community Service Learning EduReligia : Jurnal Pendidikan Agama Islam Jurnal Ilmu Fisika International Journal for Educational and Vocational Studies Jurnal Studi Guru dan Pembelajaran Jurnal Ilmiah Profesi Pendidikan Jurnal Teras Fisika : Teori, Modeling, dan Aplikasi Fisika Physics Communication Indonesian Journal of Instructional Media and Model Journal of Computer Networks, Architecture and High Performance Computing Transformasi dan Inovasi : Jurnal Pengabdian Masyarakat Flight Attendant Kedirgantaraan: Jurnal Public Relation, Pelayanan, Pariwisata Jurnal Pendidikan MIPA
Fajar Arianto
Laboratorium Fisika Radiasi Dan Fisika Medik, Departemen Fisika Universitas Diponegoro, Jl. Prof. Soedarto SH Tembalang Semarang
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Journal : Journal of Physics and Its Applications

 1 
Improving water absorption time and the natural silk strength (Bombyx Mori) using atmospheric dielectric barrier discharge plasma Zaenul Muhlisin; Muhammad Adrian Lathif; Fajar Arianto; Pandji Triadyaksa
Journal of Physics and Its Applications Vol 3, No 2 (2021): May 2021
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v3i2.10658

Abstract

This researchaimed to obtain Dielectric Barrier Discharge plasma discharge characteristics with and without the placement of natural silkBombyx Mori on one of the electrodes. Furthermore, the strength and the water absorption time of the irradiated silk samples will be analyzed.  Plasma discharge is generated by connecting electrodes of point-to-plane configuration with a sheet of glass inserted on the plane electrode at atmospheric conditions. The characterization of plasma discharge, either with or without the natural silk samples' placement on the plane electrode, was performed by increasing A.C.'s high voltage power source to reach arch discharge. Theelectrode spacing varied from 0.7 cm to 2.5 cm with a 0.3 cm increment. Sample irradiation was performed using cold plasma for 5, 15, and 30 minutes respectively. Placing or not placing the natural silk samples on the plane electrode will increase the plasma's discharge current and increase the high voltage. Moreover, increasing the distance between the electrodes and placing the sample on the plane electrode decreases the discharge current. Using Scanning Electron Microscopy, it was found that increasing plasma irradiation time on samples decreases the silk thread'sdiameterand shortening its water absorption time. The strength of irradiated fabric was reduceduntil 15 minutes of irradiation. However, at 30 minutes of irradiation, there was an increase in sample thickness compared to control samples.
Optimization of Energy for Proton Therapy with Pencil Beam Collimator Model in Craniopharyngioma Tumor Using MCNP6 Code Putri, Weni Antari; Riyatun, Riyatun; Darmanto, Darmanto; Suharyana, Suharyana; Arianto, Fajar
Journal of Physics and Its Applications Vol 6, No 1 (2023): November 2023
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v6i1.18100

Abstract

Computational simulations of proton therapy with a pencil beam collimator for craniopharyngioma have been done using MCNP6. A pencil beam was radiated towards cube shaped tumor cells in size 1.2 cm, located at a 5.4 cm depth from the surface of the scalp. A 0.1 cm pencil beam was radiated from the left 19.6 cm from the scalp. The cube of tumor cell is divided into the front layer, middle layer, and back layer. Each layer of the tumor cell is divided into 9 cubicles, thus there are 27 cubicles. Using various energy from 108 MeV to 115 MeV and various intensity of energy for each irradiation, it produces the dose for each cubicle in unit MeV/gram per proton. The best isodoses occurred in 5 variations of energy which is 108.2; 111.2; 113.4; 114.7 and 115 MeV. The healthy organ that received the largest dose of the proton is the brain, it is (7.38±0.01)×10-2 MeV/gram per proton, or only 0.412% compared to the tumor cell dose.
Analysis of Total Proton Therapy Dose Distribution with Pencil Beam Collimator Model and Varied Beam Directions in Craniopharyngioma Tumor using MCNP6 Software Hayati, Widia; Utari, Utari; Anwar, Fuad; Suharyana, Suharyana; Arianto, Fajar; Khakim, Azizul
Journal of Physics and Its Applications Vol 7, No 1 (2024): November 2024
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v7i1.23977

Abstract

Proton therapy modeling for treating craniopharyngioma tumors was conducted using a pencil beam collimator, and variations in beam directions were performed using MCNP6 software. The simulation was carried out on a head and neck phantom with the tumor cells modeled within a cubic irradiation area geometry with a 1.2 cm side length, divided into 27 small cubic voxels with a small voxel side length of 0.4 cm. The radiation source from the irradiation area's right, left, and top directions, with a diameter of 0.4 cm, was directed at each cubic voxel. Variation in radiation source directions indicated that irradiation from the right direction of the irradiation area is the most recommended approach, with a dose uniformity level of 83.47%. Healthy organs surrounding the irradiation area received lower doses than those obtained by tumor cells, and the majority remained below the Organ At Risk (OAR) threshold. Healthy organs received the highest dose, particularly in the brain region, at a relative 0.46% compared to the total dose received by tumor cells.
Co-Authors Abror, Sirojuddin Achmad Sjaifudin Tayibnapis Ade Ika Susan Agusti, Fiqrie Restia ALFINA RAHMAWATI, DIAN Ali Khumaeni AMALIA WAHYUNINGTYAS, ISTI Anas Ahmadi Andi Kristanto Andi Mariono Andi Wibowo Kinandana Anitasari, Emi Anwar Usman Armilah, Mila Siti Asep Yoyo Wardaya Auliyani, Chaeriyatun Nissa Azizul Khakim, Azizul Bambang Yulianto Binar Kurnia Prahani Chrisdian, Viddo Citra Fitri Kholidya Dahurandi, Keristian Darliawati, Herli Darmanto Darmanto Dewantari, Aditya Dhyan Prastiwi Emi Anitasari Erma Prihastanti Fatah Yasin FAUZI ADHIM, MUHAMMAD Febry Fitriani Fuad Anwar, Fuad Gunawan Gunawan Hadi Prasetyo Utomo Handayani, Liska Tri Handayani, Nita Hariyati, Mutty Harmanto Harmanto HASAN SUBEKTI Hasan, Siti Nurjannah Hasnawati, Lina Hayati, Widia Herli Darliawati Husni Mubarok Iis Nurhasanah Isa Ansori Islami, Jundu Muhammad Mufakkirul Istiqomah Istiqomah K Sofjan Firdausi khusnul khotimah Layli Hidayah Liska Tri Handayani M.A. Muazar Habibi Maharani, Rosy Puspa Martadi, Martadi Medina, Alfiarani Meisa Diningrat, Syaiputra Wahyuda Muhammad Adrian Lathif Muhammad Nur Muhammad Nur Muhammad Nur Muhammad Nur Mustaji Mustaji, Mustaji Ngurah Ayu Ketut Umiati Novan Prawira, Dyon Nur, Muhammad Nuryati, Dwi Wahyu Nurzanah, Salsabilla Choerunnisa Pandji Triadyaksa Prasetyo Basuki Prastiwi, Dhyan Pratama Jujur Wibawa PUSPITA WIRASARI, ENGGAL Putri, Weni Antari Rayhani, Fauziah Rety, Dahniarti Cahyani Riyatun, Riyatun RR. Ella Evrita Hestiandari Saraslifah Saraslifah Setyaedhi, Hari Sugiharto Shofiana, Fahlulia Rahma Sholehah Aisyah Siti Khodijah Siti Masitoh Sueb Suharyana Suharyana Sumariyah Sumariyah SYAIPUTRA WAHYUDA MEISA DINING Tayibnapis, Achmad Sjaifudin Terananda, Nabila Zuhroh Ukhti Nurohma Rizki Utari Dewi Utari Utari Very Richardina Wahyu Setia Budi Waode Hamsia, Waode Wasilatul Murtafiah Wienda Intan Permatasari YATIM RIYANTO Zaenul Muhlisin