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INDONESIA
Indonesian Physical Review
Published by Universitas Mataram
ISSN : 26151278     EISSN : 26147904     DOI : -
Core Subject : Science, Education,
Education Physics
Indonesian Physical Review is a peer review journal which is managed and published by Physics Departement, Faculty of Mathematics and Natural Sciences, Universitas Mataram. This journal is published periodically three times a year, in January, May and September. IPR is Open Accsess for all readers and includes research developments in physics both experimentally and analytically. Focus and scope include Theoritical Physics, Computation, Material sciences, Instrumentation, Biophysics, Geophysics, and Optics.
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Articles 6 Documents
 1 
Search results for , issue "Vol. 5 No. 1 (2022)" : 6 Documents clear
SINTESIS DAN KARAKTERISASI KARBON AKTIF DARI PREKURSOR BATUBARA Septiana, Atut Reni; Teluma, Yosef Christian Riki; Rifani, Agus
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.121

Abstract

In this work, coal derived activated carbon has been synthesized successfully. The activated carbon was prepared by soaking coal powder in KOH solution and continued by activation at varied temperature, i.e. 400, 500, and 600ËšC. The performance of the activated carbon was examined by X-Ray Diffraction (XRD), Fourier Transform Infrared spectroscopy (FTIR), moisture content, and iodine adsorption. The XRD data analysis results indicated the amorphous structure of carbon and revealed the more amorphous carbon as the higher of the activation temperature. The characterization using FTIR exhibited the presence of functional groups such as hydroxyl, carboxylic acid, ketone, amino, and so on. The lowest moisture content was achieved by activated carbon which was activated at 400ËšC, namely 3.77%, while the moisture content for activation temperature at 500 and 600ËšC were 5.3 and 7.74 % respectively. Moreover, the adsorption of iodine increased by the increase of the activation temperature due to high pore surfaces of the activated carbon
THE MEASUREMENT OF ENVIRONMENTAL RADIATION EXPOSURE AROUND THE LINAC RADIOTHERAPY BUNKER Kurniasari, Septiana; Hentihu, Fatimah K; Anto, Alfian K; Prasetyo, Henry
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.129

Abstract

Radiotherapy is cancer therapy using radiation. One of the tools used for radiotherapy is the Linac. Using Linac also can have a detrimental effect on radiation workers, patients, and the public. The reaction can cause activation around the room to become radioactive. Therefore, radiation protection is needed. This research aimed to measure environmental radiation exposure as a radiation protection effort around the Linac bunker. This research uses a quantitative method by collecting data directly on the area around the Linac bunker, with a distance of ± 30 cm from the bunker wall, using the STEP OD-02 Detector. The average Linac operation is 2000 hours/year, while the safe dose limit used is 1/2 dose Limit from Nuclear Power Monitoring Agency. Based on measurements of environmental radiation exposure, there are eight areas classified as safe and four other regions experiencing radiation leakage, including Doors with a radiation exposure difference of 0.078 Sv/hour; West Field (0.074 Sv/hour); TPS Room (0.302 Sv/hour); and Meeting Rooms (0.199 Sv/hour), but still within the safe limit of radiation dose. The environmental radiation exposure around the Linac Radiotherapy bunker is safe.
REVIEW OF CHARACTERISTICS AND PROPERTIES OF FE2O3/SIO2 AS WATER POLLUTION PREVENTION Soerya, Balada; Edianta, Jaya; Lailaturofi'ah, Siti; Ningtyas, Aniendita; Arsyad, Fitri Suryani; Setiabudidaya, Dedi; Sailah, Siti
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.131

Abstract

The existence of water on earth is very abundant and has a vital role in the source of life for every living creature. In managing water resources, pollution is one of the issues world researchers face. This article reviews the characteristics and methods of synthesizing Fe2O3 and SiO2 materials to prevent water pollution. The strategies administrated antecedently square measure vapor deposition, microemulsion, solvothermal, coprecipitation, sol-gel, and hydrothermal. The formation of fine quality nanoparticles with controlled size associate degreed size distribution square measure typically achieved by selecting an applicable solvent mixture and varied parameters like temperature, pressure, and time interval.
INTERNET OF MEDICAL THINGS (IoMT)-BASED HEART RATE AND BODY TEMPERATURE MONITORING SYSTEM Laila, Ida; Arifin, A; Armynah, Bidayatul
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.134

Abstract

Research has been carried out on a heart rate and body temperature monitoring system based on the Internet of Medical Things (IoMT). This study aims to create a system for monitoring heart rate and body temperature remotely in real-time with measurement results displayed on a web server. This research includes several methods such as developing research concepts based on literature studies, system design consisting of hardware and software design, sensor calibration, web server creation, system testing, and direct data retrieval. The hardware manufacturing stage uses several components such as a pulse heart sensor to detect heart rate, DS18B20 sensor to detect body temperature, Arduino Uno microcontroller, Xbee end device, Xbee coordinator, and raspberry pi as a server computer. Then for the use of software on this system, it consists of Arduino Integrated Development Environment (IDE) to run Arduino Uno hardware, XCTU to provide configuration on Xbee, Python to run Raspberry Pi and Django as a framework for building web servers and MySQL as data storage center measurement results. Heart rate monitoring is done by placing a sensor on one of the fingers, and body temperature is done by placing the sensor in the axilla. The output from the sensor in the form of analog data is converted by the Arduino Uno microcontroller into digital data and then sent to the Raspberry Pi module via Xbee. The raspberry pi has processed data is then stored in the database and then displayed on the webserver. The sensor calibration results show that the pulse heart sensor's error rate is 0.41%, and the DS18B20 temperature sensor is 1.09%. After calibration of the sensor, data was collected on the three respondents' heart rate and body temperature. The measurement results show that the system can store each respondent's heart rate and body temperature data in the database and display the measurement results on the webserver in real-time. Based on these results indicate that the system that has been made can work well.
QUALITY CONTROL OF MULTI-SLICE CT-SCAN AIRCRAFT USING PHANTOM CHART MODEL 610 AT MAKASSAR HAJI HOSPITAL Fira, Nurul Magfirawati; Dewang, Syamsir; Astuty, Sri Dewi; Muliadin, Muliadin
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.136

Abstract

This study aims to determine and analyze the quality control phantom chart of a CT-scan plane from the CT number's accuracy, the CT number's uniformity, and the uniformity of noise against the phantom. The AAPM CT Performance Phantom with the model 610 offers a single object to measure several different CT performance parameters. The Phantom design is based on the guidelines presented in the AAPM. From the measurement results, the accuracy of the CT number is still following the tolerance standard; namely, the value of passing the test ± 4 for the accuracy of the CT number, and the value of passing the test 2 is the uniformity of the CT number. Based on the Standard Regulations of the Head of the Nuclear Energy Supervisory Agency, stating that the value of accuracy and uniformity of the CT number from the CT scan image obtained in research conducted on a multi-slice CT scan plane at the Radiology Installation of the Makassar Haji Regional General Hospital shows the value of passing the test or still within PERKA BAPETEN standard.
THE VALUE OF VISCOSITY COEFFICIENT OF COOKING OIL RESULTED BY PURIFICATION BASED ON ACTIVE CHARCOAL TEMPERATURE WITH THE FALLING BALL METHOD Rachmawati, Dewi Oktofa; Suswandi, Iwan; Risha, Nurfa
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.140

Abstract

A change in viscosity indicates the damage to cooking oil. The value of the viscosity coefficient indicates the level of viscosity. This value describes the drag caused by friction between the cooking oil molecules to block the flow. The adhesive property of used cooking oil with a high viscosity value is that it is easy to stick to foodstuffs processed with this oil. Used cooking oil is cooking oil with a high viscosity coefficient value. This oil contains free fatty acids that are harmful to the body. Reuse of used cooking oil for frying foodstuffs is not recommended. Purifying used cooking oil is one way to make cooking oil safe to consume again. The surface adsorption capacity of activated charcoal is increased by heating. Activated charcoal activation temperatures are 27oC, 40oC, 50oC, 70oC, and 90oC.The value of the viscosity coefficient of the purified cooking oil is interesting to study for the activation temperature of the activated charcoal used. The falling ball method was chosen to determine the value of the viscosity coefficient. This method measured the time the ball fell in the oil. Data were analyzed quantitatively descriptively and presented in graphical form. The results show that the value of the viscosity coefficient of the purified cooking oil decreases with the increase in the activated charcoal temperature. The value of the viscosity coefficient of cooking oil as a result of purification using activated charcoal at  90oC is (0.854 ±0.004)  Pa. s

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