cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Indonesian Physical Review
Contact Email
ipr.journal@unram.ac.id
Phone
-
Journal Mail Official
lilyangraini@unram.ac.id
Editorial Address
-
Location
Kota mataram,
Nusa tenggara barat
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.
Arjuna Subject : -
Articles 221 Documents
 2   3   4   5   6 
ANALISA KURVA PDD DAN PROFILE DOSE BERKAS ELEKTRON PESAWAT LINAC VARIAN CLINAC CX Huswatun Hasanah; Nurul Qomariyah; I Wayan Ari Makmur; Rinarto Subroto; Rahadi Wirawan
Indonesian Physical Review Vol. 3 No. 2 (2020)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (716.877 KB) | DOI: 10.29303/ipr.v3i2.43

Abstract

Linac (linear Accelerator) is a radiotherapy device that utilizes radiation to kill cancer cells. Every radioterap equipment such as Linac aircraft must be calibrated periodically. One of them is monthly quality control which aims to test the performance of Linac so that the quality of the output of the radiation beam can be guaranteed. Quality control conducted is the measurement of Percentage Depth Dose (PDD) and Profile Dose. In PDD measurements, the Linac Variant Clinac CX electron beam (4, 6, 9, 12, and 15) MeV planes are used with a radiation field of 15 × 15 cm2. While the profile dose is measured in the radiation field 10 × 10 cm2 and 25 × 25 cm2 and using blue phantom, (referenc and field) detectors are equipped with computer control units (CCU) and carried out for crossline and inline directions at Dmax depth and certain depth with SSD 100 cm. The measurement results show the greater the electron energy used, the maximum dose (Dmax) obtained is getting smaller, conversely the greater the electron energy used, the greater the depth for the maximum dose. And the measurement results still meet the tolerance measurement that is ± 0.2. While the results of the Dose Profile measurements show a field area of 25 × 25 cm2 more flatness and symmetry than a 10 × 10 cm2 field area both inline and crosline directions and still meet measurement tolerances of ± 4.5% - ± 7% for flatness and ± 2 % for symmetry.
PARTICLES SIZE AND LATTICE STRAIN EFFECT ON THE OPTICAL CONSTANTS OF Fe3O4 NANOPARTICLES Indrayana, I Putu Tedy; Tuny, Margaretha Tabita
Indonesian Physical Review Vol. 4 No. 1 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i1.71

Abstract

In the case of optical sensors such as the Surface Plasmon Resonance (SPR) sensor, the Fe3O4 nanoparticles play a role to boost the signal however they can increase the detection sensitivity of the biosensor. For this application, the optical properties of Fe3O4 nanoparticles need to be studied. The optical properties are described in terms of their optical constants. Therefore, this work was purposed to study the effect of the particle size and lattice strain on the optical constants of Fe3O4 nanoparticles. Samples were synthesized by using the coprecipitation technique. Two calcination temperatures, i.e., 150oC and 250oC for 4 hours were applied to the samples. Samples were characterized for their diffraction pattern and optical properties by using XRD and Specular UV-Vis Spectroscopy technique, consecutively. The particle size and lattice strain were estimated by using the Williamson-Hall (W-H) method. The effect of the particle size and their optical constants on the reflectance curve in the SPR sensor application was also performed toward a simulation by using Winspall 3.02 software. The results show that calcination temperature causes an increase in particle size and a decrease in lattice strain. The optical constants, such as absorbance (A), absorption coefficient (α), extinction coefficient (k), refractive index (n), dielectric constants (ε), optical conductivity (σ), and the Urbach energy (Eu) significantly depended on particles size and lattice strain. However, the particle size and optical constant were significantly influent the SPR angle in the reflectance curve of Fe3O4
APLIKASI METODE SELF-POTENTIAL UNTUK PEMETAAN BAWAH PERMUKAAN DI AREA KAMPUS ITK Arisalwadi, Meidi; Cahyani, Rori Shanaz; Septiana, Atut Reni; Rahmania, Rahmania; Sastrawan, Febrian Dedi
Indonesian Physical Review Vol. 3 No. 3 (2020)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v3i3.65

Abstract

Identified subsurface composition remains one of the important things in development, such as finds out potential that is below the surface, this research in Institut Teknologi Kalimantan Campus (ITK). This study aims to identify distribute potential values and finds out the source of anomalies in the ITK Campus area. This study uses the Self-Potential method with a fixed-base technique. The data obtained in the form of potential difference (delta V) data, base potential data and measurement point coordinates. The data was corrected by daily base variation, daily correction and reference correction. After obtaining a potential value from the correction at each measurement point, the data processing was done using surfer 11 software. The results of data processing were obtained isopotential contour map and qualitative interpretation which could be seen distribution of potential different values. On the isopotential contour map, slicing of two cross sections selected indicates the source of anomaly. Anomalous potential values of 45 mV to -55 mV indicated anomalous sources namely electrolyte potential in groundwater with positive anomaly values negative up to hundreds of mV. And, there was a potential for a liquid flowwith a positive and negative anomaly ≤ 100 mV
RANCANG BANGUN SISTEM PENDETEKSI PENYERAPAN GAS KARBONDIOKSIDA (CO2) OLEH TUMBUHAN MENGGUNAKAN SENSOR MH-Z19 Permana, Lalu Teguh; Wirawan, Rahadi; Qomariyah, Nurul
Indonesian Physical Review Vol. 4 No. 2 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i2.81

Abstract

Pengukuran serapan CO2 pada tumbuhan sangat penting, untuk mengetahui tumbuhan-tumbuhan yang memiliki kemampuan menyerap CO2 dalam jumlah besar. Kemampuan serapan CO2 suatu tumbuhan dapat diukur dengan memanfaatkan suatu jenis sensor yang dapat mendeteksi atau mengukur konsenstrasi CO2. Pada penelitian ini dirancang dan dibuat suatu perangkat sistem pendeteksi serapan CO2 pada tumbuhan. Perangkat ini terdiri dari sensor MH-Z19, modul Arduino Uno, modul data logger dan chamber daun. Untuk pengujian sistem pengukuran serapan CO2 digunakan beberapa sampel uji yaitu udara bebas,  oksigen dengan kadar 95% dan CO2 buatan. Pengambilan data serapan CO2 dilakukan selama satu jam pada pukul 08.00, 10.00, 12.00, 14.00 dan 16.00 WITA dengan pengulangan sebanyak lima hari. Hasil pengukuran menunjukkan pola yang sama. Hal ini ditunjukkan dengan terlihatnya nilai konsentrasi CO2 mengalami penurunan selama satu jam pengukuran. Walaupun tren data menunjukkan kecenderungan yang sama, namun penyerapan yang paling baik terjadi pada hari pertama, ketiga, keempat dan kelima. Untuk hari pertama, ketiga dan kelima kondisi cuaca sangat cerah sehingga penyerapan CO2 yang terukur mencapai 500 ppm - 650 ppm, sedangkan pada hari keempat kondisi cuaca sedikit berawan sehingga penyerapan CO2 hanya mencapai 700 ppm. Sistem yang telah dibuat memiliki presisi pengukuran rata-rata dalam rentang waktu lima hari diatas 80%. Presisi dari sistem pendeteksi dalam rentang 88,67%-94,14%.
PEMETAAN DAN ANALISIS GEOMETRI SESAR MENGGUNAKAN METODE GEOLISTRIK DI SELENGEN LOMBOK UTARA Saputra, Putrawan; Yasin, Syamsuddin; Hiden, Hiden
Indonesian Physical Review Vol. 4 No. 1 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i1.76

Abstract

Aktivitas sesar merupakan faktor utama terjadinya gempa bumi seperti yang terjadi di Pulau Lombok. Sesar diduga banyak terdapat di Wilayah Lombok, baik sesar skala mayor maupun sesar minor. Oleh karena itu perlu dilakukan pemetaan keberadaan sesar dan analisis geometrinya, sehingga resiko bahaya dapat dimitigasi sebelum gempa khususnya di Kayangan Lombok Utara. Tujuan penelitian ini adalah untuk mengetahui keberadaan sesar dan menganalisis geometrinya di Desa Selengen Kayangan Lombok Utara. Metode yang digunakan adalah metode Geolistrik 2D. Hasil penelitian menunjukkan bahwa sesar yang terdapat di Desa Selengan adalah sesar mikro membentuk garis melalui rekahan yang tersingkap memanjang ke arah Timur Laut. Geometri rata-rata sesar: lebar 15,8 m, kedalaman 16,8 m dan Strike  Dip  Timur Laut (N37E/77). Penelitian selanjutnya akan dikaji tingkat kerawanan dan potensi likuifaksi dengan wilayah yang lebih luas menggunakan metode lain.
ALTERNATIVE FORMULATION OF PHYSICAL LAWS OF MOTION Sudiarta, I Wayan
Indonesian Physical Review Vol. 3 No. 3 (2020)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v3i3.66

Abstract

The purpose of this paper is to present a logical, consistent and understandable alternative formulation of physical laws of motion. This paper gives also a different view and understanding of physical laws of motion. This new point of view gives a deeper understanding about our universe. The central idea of this formulation is the concept of momentum and its conservation. This idea is emphasized in this paper. It is shown that Newton's laws of motion are given as a consequence of the law of conservation of momentum.
Detection of Mercury Ions in Water using a Plastic Optical Fiber Sensor Hardiantho, Willy; Arminah, Bidayatul; Arifin, Arifin
Indonesian Physical Review Vol. 4 No. 2 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i2.82

Abstract

Research has been carried out on the detection of mercury ions in water using plastic optical fibers. Detection of mercury ions is done by immersing the optical fiber sensor in the HgCl2 solution, where both ends of the sensor are connected to an LED and a phototransistor. LED as a light source will emit light along with the optical fiber which will be received by the phototransistor. The optical light received by the phototransistor is converted into an electric voltage and given a gain in the differential amplifier. The output voltage in the form of an analog signal is converted into a digital signal on the Arduino UNO so that it can be read on a computer. The optical fiber as a sensor is made in two configurations, namely U configuration and spiral spring configuration. The jacket and the fiber optic cladding are peeled off and then covered with chitosan. Each configuration will be given a variation of the curve to analyze the characteristics of the sensor. The curvature can cause a large power loss resulting in attenuation of the light intensity of the LED received by the phototransistor. Apart from the effect of indentation on optical fibers, the output voltage measurement results are also influenced by the level of HgCl2 concentration. The best measurement results for mercury ion sensors in water using plastic optical fibers are obtained in a spiral spring configuration with a chitosan cladding with a variation of 6 coils which has a sensitivity of 104.065 mV/ppm.
IDENTIFIKASI SIFAT FISIS KANDIDAT WAFER DARI LIMBAH TAHU SEBAGAI ALTERNATIF PAKAN TERNAK Rahayu, Susi; Nurhidayati, Nurhidayati; Kurniawidi, Dian Wijaya; Alaa, Siti
Indonesian Physical Review Vol. 4 No. 1 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i1.72

Abstract

Inovasi pembuatan pakan ternak dalam sediaan wafer perlu dilakukan untuk menjadi alternatif pakan saat musim kemarau. Limbah tahu merupakan salah satu bahan dasar yang dimanfaatkan sebagai bahan pembuatan wafer. Tujuan penelitian ini untuk mengidentifikasi perlakuan yang direkomendasikan dalam pembuatan kandidat wafer berdasarkan karakteristik fisis wafer. Kandidat wafer ditinjau berdasarkan warna, kadar air, densitas wafer, densitas partikel, dan porositas.  Proses pembuatan wafer dilakukan dengan proses pemadatan dan pemanasan. Sebelum serbuk limbah tahu dicetak, dipastikan dahulu kadar air pada serbuk limbah tahu sesuai dengan stadar SNI 3148:2:200. Suhu pemanasan serbuk limbah tahu yang direkomendasikan menggunakan suhu 100oC. Karakteristik serbuk limbah tahu yang dihasilkan yaitu serbuk berwarna putih, kadar air sebesar 14,1% dengan nilai densitas partikel serbuk limbah tahu(𝜌sa ) 0,189g/cm3 serta porositas (𝜙sa ) 0,216%. Sedangkan untuk proses pencetakan wafer, suhu pemanasan yang direkomendasikan yaitu 70oC. Kandidat wafer yang diperoleh menghasilkan warna putih, tahan hingga 4 minggu, kadar air 7,19%, densitas partikel (𝜌p ) 0,254 g/cm3, densitas wafer 1,10 g/cm3 dan porositas 𝜙w sebesar 3,47±0,0118%. 
GRAVITASI: GAYA vs. GEOMETRI Yasmini, Luh Putu Budi
Indonesian Physical Review Vol. 4 No. 1 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i1.69

Abstract

Perdebatan mengenai hakekat gravitasi masih banyak dibahas oleh para fisikawan hingga saat ini. Apakah gravitasi merupakan suatu medan gaya yang eksis dalam ruangwaktu atau suatu manifestasi geometri ruangwaktu. Di satu pihak, gravitasi dipandang sebagai suatu medan gaya yang dihasilkan oleh distribusi materi dan energi dalam ruang sebagai sumber medan tersebut. Di pihak lain, gravitasi dipandang sebagai manifestasi geometri ruangwaktu yang dibentuk oleh distribusi materi dan energi, dan sebaliknya, distribusi materi dan energi di dalam ruangwaktu dipengaruhi oleh geometri ruangwaktu itu.  Salah dua dari banyak teori gravitasi yang ada, yakni: gravitasi Einstein dan gravitasi teleparallel. Dalam teori gravitasi Einstein, gravitasi dan inersia digabungkan menjadi satu entitas tunggal yang secara geometrik diidentifikasi dengan koneksi Levi-Civita. Sedangkan, dalam gravitasi teleparallel, gravitasi dan inersia terpisah dengan dua entitas yang berbeda dengan makna yang berbeda. Gravitasi dipandang sebagai medan gaya (interaksi) pada ruangwaktu, sedangkan inersia dipandang sebagai geometri ruangwaktu.
STRUCTURAL AND MORPHOLOGICAL INVESTIGATION OF FUNCTIONALIZED REDUCED GRAPHENE OXIDE-MULTI WALLED CARBON NANOTUBES NANOCOMPOSITE Upadhyay, Chandramani; Shahzad, Hanzala; Javid, Mehreen; Soni, Bhumika; Ahmad, Tameem; Azmi, Kashif; Ali, Md Arshad; Ali, Firdaus
Indonesian Physical Review Vol. 3 No. 3 (2020)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v3i3.61

Abstract

2D materials like Graphene and its composite has emerged as most valuable and major concern because of their peculiar properties in field of nanotechnology in past few decades. Herein, we report the effective technique for the synthesis of functionalized r-GO/MWCNTs nanocomposite using probe sonication. The synthesized samples were tested via XRD, FESEM, FTIR and Raman Spectroscopy. X-ray diffraction technique was used for the structural analysis of the samples which revealed that most prominent peak was observed around 2θ~26°. Surface morphology of the samples were studied via FESEM, which revealed that r-GO layers were wrapped around the MWCNTs. Raman spectra were recorded for the determination of quality of r-Go and MWCNT via the position and intensity of D and G band. The various functionalities present on the samples were identified via FTIR spectra.

Page 4 of 23 | Total Record : 221

 2   3   4   5   6 

Filter by Year

2018 2026


Reset
Filter By Issues
All Issue Vol. 9 No. 1 (2026) Vol. 8 No. 3 (2025) Vol. 8 No. 2 (2025) Vol. 8 No. 1 (2025) Vol. 7 No. 3 (2024) Vol. 7 No. 2 (2024) Vol. 7 No. 1 (2024) Vol. 6 No. 3 (2023) Vol. 6 No. 2 (2023) Vol. 6 No. 1 (2023) Vol. 5 No. 3 (2022) Vol. 5 No. 2 (2022) Vol. 5 No. 1 (2022) Vol. 4 No. 3 (2021) Vol. 4 No. 2 (2021) Vol. 4 No. 1 (2021) Vol. 3 No. 3 (2020) Vol. 3 No. 2 (2020) Vol. 3 No. 1 (2020) Vol. 2 No. 3 (2019) Vol. 2 No. 2 (2019) Vol 2, No 1 (2019) Vol. 1 No. 1 (2018) More Issue