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Journal of Aceh Physics Society
Published by Universitas Syiah Kuala
ISSN : -     EISSN : 23558229     DOI : -
Core Subject : Science,
Physics
Focus of Journal of Aceh Physics Society (JAcPS) provides a forum for original paper works that enhances understanding of physics and their application. Scope of Journal of Aceh Physics Society (JAcPS) paper related to the development of new experimental methods, visualization techniques, material physics, optic, laser and instrumentation in physics is an important part of this journal. Experience gained and lessons learned in building test facilities and in measuring and reducing test data are important aspect of any experimental work. Authors are encouraged to report this experience and to summarize the original data. Archival review paper, short communication, invited papers, discussion of previously published papers, and book reviews are regular feature of the journal, in addition to full-length article.
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Articles 152 Documents
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Qualitative Interpretation of Total Magnetic Field Anomaly Data Reduction Transfprmation to The Poles in Weh Island Kendek Limbong; nazli ismail; Gunawati Gunawati
Journal of Aceh Physics Society Volume 7, Number 2, May 2018
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Telah dilakukan penelitian menggunakan metode magnetik di Pulau Weh, Provinsi Aceh. Data medan magnetik total diukur menggunakan instrumen Proton Precission Magnetometer (PPM). Titik pengukuran berjumlah 195 yang meliputi Pulau Weh. Data medan magnetik total selanjutnya dilakukan koreksi diurnal dan koreksi International Geomagnetic Reference Field (IGRF) untuk menghasilkan data intensitas anomali medan magnetik total. Data anomali medan magnetik total selanjutnya ditransformasi reduksi ke kutub. Pola kontur intensitas anomali medan magnetik total hasil transformasi reduksi ke kutub digunakan untuk mengidentifikasi struktur bawah permukaan Pulau Weh. Pola kontur intensitas anomali medan magnetik total hasil reduksi ke kutub memiliki kesesuaian dengan peta pola kelurusan Sesar Sumatera di Pulau Weh. Arah pola kontur intensitas anomali medan magnetik total hasil reduksi ke kutub juga memiliki kesesuaian dengan arah patahan-patahan yang ada di Pulau Weh.Survey of magnetic method has been done in Weh Island, Aceh Province. Total magnetic field data were acquired using Proton Precision Magnetometer instrument. 195 stations were measured on the Weh Island that cover about 156,3 km2. The total magnetic field data were corrected by diurnal and International Geomagnetic Reference Field corrections in order to obtain total magnetic field anomaly data. The total magnetic field anomaly data were transformed to the pole since the data were measured at low lattitude geomagnetic area. The contour patterns of the total magnetic field anomaly reduced to the pole were used to identify the Weh Island's subsurface structures. The contour patterns are in agreement with the map of the Sumatera Fault on Weh Island. Both maps show NW-SE structures dominated the area those are corresponded to the local faults. Keywords: magnetic method, field anomaly intensity, pole, contour patterns, Weh IslandDaftar Pustaka Blakely, Richard J. 1996. Potential Theory In Gravity and Magnetic Applications. Cambridge University Press, Cambridge.Dirasutisna, S dan Hasan A. R. 2005. Geologi Panas Bumi Jaboi, Sabang, Provinsi Aceh Nanggroe Darussalam. Pemaparan Hasil Kegiatan Lapangan Subdit Panas Bumi 2005. Indonesia, Volume. 1: 1-6.Fernandez-Blanco, David, Philippon, Melody, von Hagke, Christoph. 2016. Structure and kinematics of the Sumatran Fault System in North Sumatra (Indonesia), Tectonophysics, doi: 10.1016/j.tecto.2016.04.050.Howell, L. E. 2010. Characterizing shallow intrasedimentary faults using magnetic depth estimation methods: Preliminary results of a high-resolution aeromagnetic survey at the San Luis Basin, south-central Colorado. Thesis. Bachelor of Arts degree from Carleton College, Minnesota.Indratmoko, P., Nurwidyanto M. I., dan Yulianto T. 2009. Interpretasi Bawah Permukaan Daerah Manifestasi Panas Bumi Parang Tritis Kabupaten Bantul DIY dengan Metode Magnetik. Jurnal Berkala Fisika. Vol. 12, No. 4 (1410–9662): 153-160.Jain, Sudhir. 1988. Total Magnetic Field Reduction –The Pole or Equator? A Model Study. Canadian Journal of Exploration Geophysics, Vol. 24 No. 2: 185-192.Rahmad, B dan Ilahude, D. 2011. Pola Anomali Magnet dan Nilai Susceptibilitas dari Batuan Dasar Pada Pemetaan Geologi dan Geofisika di Perairan Teluk Bone Sulawesi Selatan. Jurnal Geologi Kelautan. Vol. 9. No. 13: 13-22.Telford, W. M., Geldart L. P. Dan Sheriff R. E. 1990. Applied Geophysics Second Edition. Cambridge University Press, Cambridge.
Study on Hydrogen Gas concentration to Voltage and Resistance using Semiconductor Hydrogen Gas Sensor Ahmad Arif Hasibuan; Elin Yusibani; M Syukri Surbakti
Journal of Aceh Physics Society Volume 5 Number 1, March 2016
Publisher : PSI-Aceh

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Study on hydrogen gas concentration to changes in voltage and resistance using semiconductor hydrogen gas sensor has been done. The system which has been designed will measure any changes in the voltage and resistance of the sensor automatically when the sensor is given a variation of concentration on hydrogen gas. On the condition of gas with low concentration, the sensor output voltage obtained worth 0:08 Volt and the sensor resistance value of 180 KΩ. On the increase in gas concentration causes an increase in sensor output voltage and a decrease in the value of resistanceStudi tentang pengaruh konsentrasi kadar gas hidrogen terhadap perubahan tegangan dan resistansi menggunakan sensor gas hidrogen berbasis semikonduktor telah berhasil dilakukan. Sistem yang telah dirancang akan mengukur setiap perubahan tegangan dan resistansi secara digital pada sensor saat diberikan variasi terhadap konsentrasi kadar gas hidrogen. Pada kondisi gas dengan konsentrasi rendah diperoleh tegangan output sensor senilai 0.08 Volt dan nilai resistansi sensor sebesar 180 KΩ. Pada peningkatan konsentrasi gas menyebabkan peningkatan tegangan output sensor dan sebaliknya terjadi penurunan pada nilai resistansi
Effect of Rolling Process on Critical Temperature (Tc) in Ag/Bi1,6Pb0,4Sr2Ca2Cu3O10 Superconducting Wire with Addition of CNT Manufacture Hilda Ayu Marlina; Agung Imaduddin; Kerista Sebayang; Pius Sebleku
Journal of Aceh Physics Society Volume 7 Number 1, January 2018
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Analisa pengaruh proses penarikan (rolling) terhadap suhu kritis (Tc) dalam pembuatan kawat superkonduktor Ag/Bi1,6Pb0,4Sr2Ca2Cu3O10 dengan penambahan CNT (carbonnanotube) telah dilakukakan. Kawat superkonduktor Ag/Bi1,6Pb0,4Sr2Ca2Cu3O10 dengan penambahan CNT merupakan kawat superkonduktor berbasis bismuth dengan penambahan CNT yang diselubungi Ag (Argentum), dalam penelitian ini Ag yang digunakan berdiameter awal 8 mm. Pembuatan kawat Ag/Bi1,6Pb0,4Sr2Ca2Cu3O10 dengan penambahan CNT tersebut dilakukan menggunakan metode PIT (Powder in Tube). Salah satu proses dalam metode PIT yang mempengaruhi suhu kritis (Tc) kawat Ag/Bi1,6Pb0,4Sr2Ca2Cu3O10 dengan penambahan CNT adalah proses penarikan (rolling). Dalam penelitian ini, Tc optimum didapatkan pada penarikan pertama dengan diameter kawat menjadi 5 mm dengan nilai Tconset 109,17 K dan nilai Tczero 71 K. Namun, pada penarikan kedua (penarikan berulang) hingga kawat berdiameter 2,6 mm diperoleh nilai Tconset sebesar 90 K, tetapi Tczero tidak dihasilkan. The analysis of rolling process to critical temperature (Tc) in the manufacture of Ag/Bi1,6Pb0,4Sr2Ca2Cu3O10 superconducting wire with additional CNT (carbonnanotube) has been done. The Ag/Bi1,6Pb0,4Sr2Ca2Cu3O10 superconducting wire with additional CNT is a superconducting wire based on bismuth by adding CNT shrouded by Ag (Argentum), in this study Ag used an initial diameter of 8 mm. This wire manufacture is done by using PIT (Powder in Tube) method. One of processes in the PIT method wich affect on Tc value is the process of withdrawal (rolling). In this study, the optimum Tc obtained at the first rolling with wire diameter to 5 mm with Tconset 109.17 K and Tczero 71 K. However, in the second rolling (rolling repeatedly) until the 2.6 mm diameter wire produced a value of Tconset of 90 K, but Tczero not produced. Keywords: Ag/Bi1,6Pb0,4Sr2Ca2Cu3O10, CNT, PIT method, RollingFERERENCESAbbas, M.M. et.al. 2015. “Superconducting Properties of Bi2-xSbxPb0,3Sr1,9Ba0,1Ca2Cu3O10+δ”. Journal of Applied Sciences Research. No. 22. Hal 164-172. Dadras, Y. Liu, Y.S. Chai, V. Daadmehr, K.H. Kim, Physica C 469 (2009) 55.De Bruyn Ouboter, R., Van Delft, D., Kes, P. H. 2012. “Discovery and Early History of Superconductivity”. In H. Rogalla, P. H. Kes (Eds.), 100 years of superconductivity (pp.1-29). Boca Raton, FL: CRC Press.Galvan, A. Durán, F.F. Castillón, E. Adem, R. Escudero, D. Ferrer, A. Torres, M. José-Yacamán, J. Supercond. Nov. Magn. 21 (2008) 271.Galvan, D.H., J.H.Kim., M.B. Maple, Hirata, G.A., dan E. Adem. 2000. Flux Pinning Effect of Embedded Carbon Nanotubes in Bi2Sr2CaCu2O8. Physica C, Vol : 341-348 : 1269-1270.Galvan, Shi Li, W.M. Yuhasz, J.H. Kim, M.B. Maple, E. Adem, Physica C 403 (2004) 145.Jabur, Akram R. 2012. “B2223 High Temperature Superconductor Wires in Silver Sheath, Filament Diameter Effect on Critical Temperature and Current Density”. Energy Procedia. 18. Hal 254-264.Joshua, dkk. 2016. Pembuatan Kawat Superkonduktor BSCCO-2223. Laporan Kerja Praktik.Lusiana. 2013. “Proses Pembuatan Material Superkonduktor BSCCO dengan Metoda Padatan”. Majalah Metalurgi. V 28.2.2013. Hal 73-82.Nurmalita. 2011. “The Effect of Pb Dopant On The Volume Fraction Of BSCCO-2212 Superconduntucting Crystal”. Jurnal Natural Vol. 11, No. 2.Rey, Christopher. 2015. “Superconductors in The Power Grid”. Woodhead Publishing.  pp : 86.Z.Q. Yang, X.D. Su, G.W. Qiao, Y.C. Guo, S.X. Dou, F.R. de Boer, Physica C 325 (1999)
Mineral Identification of Adhesive Material using XRD for Ancient Fortress Located at Aceh Besar Nurul Fitri; Elin Yusibani; Evi Yufita
Journal of Aceh Physics Society Volume 6 Number 2, September 2017
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Studi lanjut kandungan material perekat pada tiga benteng purba di kawasan Aceh Besar, yaitu Benteng Indrapatra (BIP), Benteng Inong Balee (BIB), dan Benteng Kuta Lubok (BKL) telah dilakukan menggunakan X-Ray Diffraction (XRD). Tujuan dari penelitian ini adalah untuk mengetahui jenis mineral yang terkandung di dalam material perekat pada benteng purba tersebut. Identifikasi awal menggunakan XRF menunjukkan bahwa unsur yang paling dominan yang terkandung dalam material perekat benteng purba di kawasan Aceh Besar adalah unsur kalsium dan diduga sebagai unsur penyusun dari senyawa batu kapur. Hal ini didapatkan berdasarkan pencocokan dengan komponen penyusun batu kapur dari lima daerah yang berbeda di Sumatra. Hasil uji XRD diperoleh mendukung hasil XRF sebelumnya bahwa benteng purba di kawasan Aceh Besar menggunakan material perekat dari batu kapur yang berjenis Kalsit (CaCO3). Study about adhesive material in the three ancient fortress at Aceh Besar, namely Fortress Indra patra (BIP), Inong Balee (BIB), and Kuta Lubok (BKL) has been done using X-Ray Diffraction (XRD). Preliminary study has been done by investigating the compound material on adhesive material use XRF indicate that the major elements in the adhesive material forts in Aceh Besar is Calcium. This element of Calcium suspected as the composer of limestone, it is based on matching with the composition of limestone from five different areas in Sumatra. The result of XRD in consistent with the result of XRF that ancient fort in Aceh Besar district uses an adhesive material of Calcite (CaCO3). Keywords: Benteng purba, material perekat, X-Ray Diffraction (XRD), batu kapur Kalsit (CaCO3).
Application of Resistivity Methods for Agriculture in Jaboi-Sabang Geothermal Area Marwan Abubakar; Didik Sugianto; Muzakir Zainal; Media Hanum
Journal of Aceh Physics Society Volume 7, Number 2, May 2018
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Telah dilakukan pengukuran resistivitas tanah konfigurasi Wenner-Schlumberger pada lahan pertanian di kawasan panas bumi Jaboi, Sabang. Penelitian ini bertujuan untuk melihat struktur bawah permukaan agar jenis tumbuhan yang cocok pada lokasi tersebut dapat diidentifikasikan. Akuisisi data dilakukan pada 2 lintasan dengan panjang 300 dan 165 m dan jarak antar elektroda 15 m. Pengolahan data diproses menggunakan software RES2DINV dengan nilai RMS error sebesar 23,9% dan 14,8%. Hasil pemodelan 2D kedua lintasan tersebut diperoleh nilai resistivitas yang berkisar antara 1 - 250 Ωm. Nilai resistivitas ini dapat diintepretasikan sebagai tanah lempung berpasir (Sandy Clay), zona pelapukan (weathering zone) dan batuan andesit gunung api. Berdasarkan observasi lapangan, topografi lokasi penelitian didominasi oleh daerah rendah dengan suhu yang relatif panas. Secara keseluruhan baik itu dari jenis tanah, topografi maupun suhu, maka lokasi ini mempunyai prospek untuk dilakukan pengolahan lahan pertanian dengan jenis tanaman berupa tumbuhan pokok seperti padi dan tebu, serta tumbuhan palawija seperti jagung dan kacang hijau.Resistivity method on geothermal agricultural area in Jaboi-Sabang has been measured. This study is aimed to identify the suitable plant species in the area. The measurement was conducted in two profiles with 300 and 195 m and the spacing between electrodes is 15 m. The method measured apparent resistivity data along the profiles. The 2D resistivity models were inverted from the apparent resistivity data using Res2Div program with both of RMS error are 23.9% and 14.8%. The data shown the resistivity values range from 1-250 Ωm that can be interpreted as sandy clay, weathering zone, and volcanic andesitic rocks. Based on the soil type, topography and temperature we can conclude that the prospective plant in the area are rice, sugar, and all of palawija i.e. corn and green beans.Keywords: Resistivity, Agricultural, Geothermal, sandy clay, weathering zone 
Measurement of Internal Friction for Tungsten by the Curve Vibrating Method with Variation of Voltage and Temperature Elin Yusibani; Kosuke Yoshimura; Kanei Shinzato
Journal of Aceh Physics Society Volume 2 Number 1, March 2013
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Application of a curved vibrating wire method (CVM) to measure gas viscosity has been widely used. A fine Tungsten wire with 50 mm of diameter is bent into a semi-circular shape and arranged symmetrically in a magnetic field of about 0.2 T. The frequency domain is used for calculating the viscosity as a response for forced oscillation of the wire. Internal friction is one of the parameter in the CVM which is has to be measured beforeahead. Internal friction coefficien for the wire material which is the inverse of the quality factor has to be measured in a vacuum condition. The term involving internal friction actually represents the effective resistance of motion due to all non-viscous damping phenomena including internal friction and magnetic damping. The testing of internal friction measurement shows that at different induced voltage and elevated temperature at a vacuum condition, it gives the value of internal friction for Tungsten is around 1 to 4 10-4.
Monitoring and Evaluation Quality of Drinking Water Industry (PDAM) at Aceh Besar in April and July Nurul Zamaruddin
Journal of Aceh Physics Society Volume 7 Number 1, January 2018
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Air merupakan salah satu elemen penting yang menunjang kehidupan manusia. Air bersih digunakan untuk minum, mandi dan mencuci. Air bersih yang baik adalah yang memenuhi persyaratan yang dikeluarkan Pemerintah sesuai dengan PPRI nomor 82 tahun 2001 dan Menteri Kesehatan RI No. 492/Menkes/Per/IV/2010 tanggal 20 April, 2010 untuk syarat air minum yaitu meliputi parameter fisika (rasa, bau, suhu, TDS dan kekeruhan) dan parameter kimia (kesadahan, pH, klorida, Fe, Cu dan Pb). Penelitian ini dilakukan dengan mengambil beberapa titik sampling (4 titik) di kawasan Aceh Besar untuk dimonitor kualitas air bersihnya. Hasil rata-rata yang diperoleh adalah 28,5oC untuk Temperatur, tidak berbau, tidak berasa, TDS 305,7 mg/L, Kekeruhan 1,71 NTU, Kesadahan total 168,17 mg/L, pH 8,28, Klorida 97,65 mg/L, Fe 0,0009 mg/L, Cu 0,002 mg/L, Pb 0,001 mg/L. Dari analisa disimpulkan bahwa air bersih tersebut memenuhi standar baku mutu dan layak dikonsumsi. Water is one of the important elements that support human life. Clean water is used for drinking, bathing and washing. Good clean water shall fulfill the requirements issued by the Government in accordance with PPRI number 82 of 2001 and the Minister of Health of the Republic of Indonesia number 492/Menkes/Per/IV/2010 dated April 20, 2010 for drinking water requirements including physical parameters (taste, smell, TDS and turbidity) and chemical parameters (hardness, pH, chloride, Fe, Cu and Pb). This study was conducted by taking some sampling point (4 points) in Aceh Besar area to monitor the quality of clean water. The average results obtained are 28.5oC for Temperature, odorless, tasteless, TDS 305.7 mg/L, Turbidity 1.71 NTU, Total hardness 168.17 mg/L, pH 8.28, Chloride 97,65 mg/ L, Fe 0.0009 mg/L, Cu 0.002 mg/L, Pb 0.001 m/L. From the analysis it is concluded that the water fill up the standard of quality and feasible to consumed.Keywords: kesadahan, pH, klorida, Fe, Cu, PbReferensi Mulyani, Marwan, Nazli Ismail, 2012, River Water Quality Spatial Analysis Based On Physical Parameter Throughout Krueng Daroy In Banda Aceh, Journal of Aceh Physics Society, SS, Vol. 1, No. 1 pp. 1-2, 2012Suripin, 2001, Pelestarian Sumber Daya Tanah dan Air, Andi Yogyakarta, Yogyakarta
Measurement and Analysis of Output Radiation Dose on X-Ray Device over 10 Years at Hospitals in Medan City Herty Afrina Sianturi; Martha Rianna; Timbangen Sembiring; Marhaposan Situmorang
Journal of Aceh Physics Society Volume 7 Number 1, January 2018
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Telah dilakukan pengukuran dosis radiasi keluaran pada empat pesawat sinar-X yang sudah berusia lebih dari 10 tahun di unit radiologi rumah sakit di kota Medan dengan spesifikasi yang berbeda. Badan Tenaga Atom Internasional (IAEA), telah merekomendasikan penggunaan tingkat panduan agar dosis radiasi yang diterima pasien dengan tetap mempertahankan kualitas citra film yang dihasilkan untuk kepentingan keselamatan pasien. Untuk melihat kualitas dari pesawat sinar-X ini dapat dilakukan uji akurasi tegangan dan uji akurasi lamanya penyinaran dosis sebagai proses quality control. Tujuan dari penelitian ini untuk mengetahui nilai penyimpangan tegangan tabung (kVp) dan arus waktu tabung (mAs) dalam batas toleransi yang ditetapkan oleh PERKA BAPETEN No 9 Tahun 2011. Metode yang dilakukan adalah dengan mengukur tegangan keluaran tabung menggunakan detektor Piranha CB2-10090128 dan mengukur jarak antara tabung X-Ray ke detektor Piranha CB2-10090128 sejauh 100 cm seperti pada acuan pada PERKA BAPETEN No. 9 Tahun 2011. Hasil pengujian kemudian dianalisa sehingga didapatkan kesimpulan performa dari alat tersebut apakah masih dalam kondisi baik atau tidak. Dari empat pesawat sinar-X pada rumah sakit di kota Medan didapatkan hanya satu pesawat yang tidak melebihi ambang batas yang diperbolehkan oleh PERKA BAPETEN No. 9 Tahun 2011. Kata Kunci: Dosis Radiasi, Pesawat sinar-X, PERKA BAPETEN No. 9 Tahun 2011, Akurasi Tegangan  There have been measurements of output radiation dose for four X-Ray device over ten years of radiology units some hospitals in Medan city with different specifications. The International Atomic Energy Agency (IAEA) has recommended the use of guidance levels for the optimum patient-received radiation dose while maintaining the quality of film imagery generated for the patient safety. To see the quality of this X-ray device can be tested the accuracy of voltage and duration of dose irradiation as a quality control process. The purpose of this research is to know the value of tube voltage deviation (kVp) and tube time (mAs) to meet the tolerance limit specified by PERKA BAPETEN No 9, 2011. The method is to measure the output voltage of tube using Piranha CB2-10090128 detector and measure the distance between the X-Ray tubes to the Piranha CB2-10090128 detector as far as 100 cm as in reference to the PERKA BAPETEN no. 9, 2011. The results give the conclusion that the performance of the device is still in good condition or not. For the four X-ray devices in hospitals at Medan give only onedevice does not exceed the limited permitted by PERKA BAPETEN No. 9,2011.Keywords: Radiation Dose, General Radiography, PERKA BAPETEN No. 9 Tahun 2011 accurate of voltage, accurated radiationReferensiAdhikari, Suraj Raj. 2012. Effect And Application      Of Ionization Radiation (X-Ray) In Living  Organism. Kaski: Volume 3.The Himalaya  Physics.Badan Pengawas Tenaga Nuklir, Peraturan Kepala BAPETEN No. 8 Tahun 2011  tentang Keselamatan Radiasi dalam Penggunaan Pesawat Sinar-X Radiologi Diagnostik dan Intervensional, 2011.BAPETEN, 1999, Surat Keputusan Kepala Bapeten nomor 01/Ka-Bapeten/V-99 tentang Kesehatan terhadap radiasi pengion, JakartaBATAN, 2005, Disain Penahan Ruang Sinar –X, Pusdiklat, BATAN, JakartaBushong, Steward C. 2013. Radologic Science for Technologists. 10th edition.United State of  America : CV. Mosby Company.Kramer, H. M., dan Selbach, H. J. 2008. Extension of the Range of Definition of the Practical Peak Voltage up to 300 kV. The British Journal of  Radiologhy (81):693-698.Rassad, S. dkk, Radiologi Diagnostik, Fakultas Kedokteran Universitas Indonesia Rumah Sakit Dr Cipto Mangunkusumo, Jakarta (2000).Suryanto, Sigit Bachtiar. 2011. Analisis Pembentukan Gambar Dan Batas Toleransi Uji Kesesuaian Pada Pesawat Sinar-X Diagnostik. Prosiding Seminar Penelitian Dan Pengelolaan Perangkat Nuklir.Trikasjono, T. dkk. 2009. Analisis Keselamatan Pesawat Sinar-X di Instalasi Radiologi Rumah Sakit Umum daerah Sleman Yogyakarta. Prosiding Seminar Nasional Sains dan Teknologi Nuklir PTNBR – BATAN.Vassileva, J. 2004. A Phantom for Dose Image Quality Optimization in Chest Radiography. The British Journal of Radiologhy 75:837-842.Wadianto, Azis Muslim. 2017. Uji Akurasi Tegangan Tinggi Alat Rontgen Radiography Mobile. INOVASI, Volume XIX Nomor 1,Januari 2017 
Heat Energy of Candlenut Shell and Tamarind Skin Briquet with Variation on Particle Size and Pressure Pressing Cut Dewi Afriani; Evi Yufita; Nurmalita Nurmalita
Journal of Aceh Physics Society Volume 6 Number 1, March 2017
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Pemanfaatan limbah dari hasil perkebunan dapat digunakankan untuk pembuatan briket bioarang yang energinya dapat diperoleh sebagi energi alternatif. Pada penelitian ini dilakukan pembuatan briket bioarang campuran antara limbah tempurung kemiri dan kulit asam jawa dengan memvariasikan tekanan pengepresan (4 ton, 5 ton, 6 ton) dan ukuran partikel dari cangkang kemiri (20 mesh, 40 mesh, 60 mesh) untuk mengetahui kualitas briket yang dihasilkan. Hasil penelitian menunjukkan bawa nilai kalor briket bioarang tertinggi berada pada tekanan pengepresan 6 ton dengan ukuran butir 60 mesh sebesar 3350 kal dengan porositas sebesar 5,58 % dan kadar air sebesar 7,6 %. Farm waste utilization can be done by making a briquet as an alternative energy. In this research mixture of waste candlenut shell and tamarind skin as a briquet is studied by varying the pressure pressing (4 tons, 5 tons, 6 tons) and grain size of the candlenut shell (20 mesh, 40 mesh, 60 mesh) to determine the quality of briquettes resulting from. The results show that the highest heat energy of briquet currently on the pressing pressure of 6 tons with a grain size of 60 mesh at 3350 cal with a porosity of 5.58% and a water content of 7.6%. Keywords: briket bioarang, tempurung kemiri, kulit asam jawa, tekanan pengepresan, ukuran butir
MgTiO3 Thin Films Synthesis by Sol Gel Method widya Angreni; Mursal Mursal; Elin Yusibani
Journal of Aceh Physics Society Volume 7, Number 2, May 2018
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Telah dilakukan sintesa lapisan tipis MgTiO3 dengan menggunakan metode Sol Gel. Lapisan tipis MgTiO3 dibuat dengan mencampurkan TiO dan MgSO4 sebagai prekursor. Larutan ini kemudian diaduk selama 1 jam agar campuran menjadi homogen dengan menggunakan magnetic stirrer. Lapisan tipis MgTiO3 dipanaskan dengan variasi suhu mulai dari 300, 400, 500 dan 60oC selama 1 jam. Berdasarkan hasil pengujian XRD menunjukkan bahwa pada suhu 300 - 500oC nilai ukuran butir kristal semakin besar, sementara pada suhu 600oC ukuran butir kristal mengecil. Struktur kristal yang terbentuk dari lapisan tipis MgTiO3 adalah rutil. Hasil SEM menunjukkan lapisan MgTiO3 terdeposisi dengan baik yang ditunjukkan dengan tidak munculnya retakan pada permukaan lapisan serta terdapat adanya pori yang terbentuk dan ketebalan lapisan tipis MgTiO3 berkisar antara 1,67 – 1,79 µm. Hasil pengujian UV-Vis menunjukkan suhu pemanasan mempengaruhi turunnya nilai band gap. Semakin tinggi suhu pemanasan semakin kecil band gap yang dihasilkan, yaitu pada suhu 300oC bernilai 3,22 eV dan pada suhu 600oC bernilai 3,02 eV.MgTiO3 thin films synthesis has been done using Sol Gel method. The MgTiO3 thin films is made by mixing TiO and MgSO4 as precursors. This solution is then stirred for 1 h to have homogeneous mixture by using a magnetic stirrer. The MgTiO3 thin films is heated with temperature variations range of 300, 400, 500 and 600°C for 1 h. Based on XRD test showed that at 300 - 500 oC value of crystalline grain size was increased, while at 600oC the size of crystal grains decreased. The crystalline structure formed from a thin films of MgTiO3 is rutile. The SEM results show a well-deposited MgTiO3 films which is indicated by the absence of cracks on the surface of the coating and there is a pore formed and the thickness of the MgTiO3 thin films range of 1.67 to 1.79 μm. UV-Vis test show that the heating temperature affects the decrease in band gap value. The higher the heating temperature give the smallerof band gap, ie at a temperature of 300oC worth 3.22 eV and at a temperature of 600oC worth 3.02 eV, respectively.Keywords: MgTiO3 thin films, Sol Gel, XRD, SEM, UV-Vis.DAFTAR PUSTAKAAngela, R., dan Pratapa, S. 2012. Sintesis MgTiO3 dengan Variasi Temperatur Kalsinasi Menggunakan Metode Pencampuran Larutan. Jurnal Sains dan Seni ITS Vol. 1, ISSN: 2301-928XBasitoh D., Is Fatimah., and Tatang S. J. Penggunaan Ekstrak Pigmen Kulit Buah Manggis (Garnicia mangostana) Sebagai Zat Peka Cahaya TiO2-Montmorillonit Dalam Dye-Sensitized Solar Cell (DSSC). FMIPA. Universitas Islam Indonesia. Yogyakarta.Badawy M.I., Souaya E.M.R., Gad-Alah T.A., Abdel-Wahde M.S., Ulbricht M. 2013. Fabrication of Ag/TiO2 Photocatalytic for the treatment of simulated hospital wastewater under sunlight. Enviromental Progress and Sustainable Energy.33 (3), 886-894.Chao W-S., Ting C-C., 2010. Experimental Study On Reversal Structure Of Photoelectrode In Dsscs. Proceedings of the ASME 2010 International Mechanical Engineering Congress Exposition IMECE2010 Vancouver, British Columbia, Canada IMECE2010-38497Dadi, R., 2014. Pembuatan Sel Surya TiO2 Nanokristal Berbahan Dasar Anthocyanin Sebagai Material Dye, Prosiding Pertemuan Ilmiah XXVIII HFI Jateng DIY, Yogyakarta, ISSN : 0853-0823.Gratzel, M. (2003). “Review: Dye Sensitized Solar Cells”, Journal of Photochemistry and Photobiology C: Photochemistry Reviews, Vol. 4, hal. 145– 153.Green, Martin A.1982. Solar Cell Operating Principles Technology And System Application”prenticell Hall, IncEvylewood Cliffs N,J. Hardeli, Suwardani, Riky, Fernando, T., Maulidis, dan Ridwan, S. 2013. Dye Sensitized Solar Cell (DSSC) Berbasis Nanopori TiO2 Menggunakan antosianin dari Berbagai Sumber Alami. Prosiding Semirata FMIPA Universitas Lampung.Helga, D. F., Samsidar, Faizar, F., Heriyanti, Sampe Napitupulu, dan Sarina, P, 2015. Disain Prototipe Sel Surya DSSC (Dye Sensitized Solar Cell) Lapisan Grafit/TiO2 Berbasis Dye Alami, Prodi Fisika dan Prodi Kimia, FST, Universitas Jambi.Heriyanti, S., 2006, Kajian Sensitisasi Lapis Tipis TiO2 oleh Zat Warna Alami untuk Sel Surya Berbasis Sensitiser Zat Warna, Skripsi, FMIPA UGM, Jogjakarta. Ludin, N.A., dkk. 2014. Review on The Development of Nature Dye Photosensitizer for Dye Sensitized Solar Cell. Renewable and Suinable Energy, 386-396.Linsebigler, A.L., Lu, G. Dan Yates, J.T., 1995, Photocatalysis on TiO2 Surface:Principles, Mechanism and Selected Results, Chem. Rev., 95, 735-758.Maya, S., Widya, K., Drs. Gontjang, P, M.Si.,2012. Studi Awal Fabrikasi Dye Sensitized Solar Cell (DSSC) Dengan Menggunakan Ekstraksi Daun Bayam Amaranthus Hybridus l.) Sebagai Dye Sensitizer Dengan Variasi Jarak Sumber Cahaya Pada DSSC, Jurusan Fisika, FMIPA Institut Teknologi Sepuluh NopemberMulyadi, T. 2015. Pengertian, Ciri, dan Sifat magnesium. http://budisma.net/2015/02/pengertian-ciridan-sifat-magnesium.html (Tanggal akses, 26 Februari 2015)Nam, T. V., Trang, N. T., and Cong, B. T. 2012. Mg-Doped TiO2 for Dye-Sensitized Solar Cell: An Elektronic Structure Study. Proc. Natl. Conf. Theor. Phys. 37, pp. 233-234.O’Regan dan Gratzel, 1991, A Low Cost, High Eficiency Solar Cell Based On Dye Sensitized Coloidal TiO2 film, Nature, 737740.Ratnasari, D., Hermanihadi, S., Indriyanto, W., Fathony, A., Devi WH. F., Agung R, P. dan Amin Rais, Y. 2009. Tugas Kimia Fisika X-Ray Diffraction (XRD), Surakarta: FT UNS.Slamet, Syakur R dan Danumulyo W. 2003. Pengolahan Limbah Logam Berat Chromium (VI) Dengan Fotokatalis TiO2. Makara, Teknologi, 7 (1): 27-32.Smestad and Gratzel M. 1998. Demonstrating Electron Tranfer and Nanotechnology; A Natural Dye-Sensitized Nanocristallin Energy Converter. J, Chem.Educ. 75,752756.Suhartatik, N., Karyantina, M., Mustofa, A., Cahyanto, M. N., Raharjo, S., Rahayu, E. S. 2013. Stabilitas Ekstrak Antosianin Beras Ketan Hitam (Oryza sativa glutinosa) selama Proses Pemanasan dan Penyimpanan. Jurnal Agritech Vol. 33, No. 4, Yogyakarta.Septina, W., Fajarisandi, D., Aditia, M. Pembuatan prototip solar cell dengan bahan organik-inorganik (dye sensitized solar cell). Laporan Akhir Penelitian Bidang Energi, Penghargaan PT. Rekayasa Industri (2007)Vlanck, V, Lawrence. 2004. Elemen-elemen Ilmu dan Rekayasa Material Edisi Ke-6. Jakarta: Erlangga. Wulandari, H., 2008. Performa Sel Surya Tersensitasi Zat Pewarna (DSSC) Berbasis ZnO Dengan Variasi Tingkat Pengisian dan Besar Kristalit TiO2, Skripsi, Jurusan Teknik Metalurgi dan Material, Fakultas Teknik Universitas Indonesia.Xu, Shi, Fan, Dong, Shi, dan Hu. 1999. Effects of Particle Size of TiO2 on Photocatalytic Degradation of Methylene Blue in Aqueous Suspensions. Chemical Reviews, (38): 373379.Yuwono, A. H., Munir, B., Ferdiansyah, A., Rahman, A., dan Handini, W. 2010. Dye Sensitized Solar Cell with Conventionally Annealed and Post- Hydrothermally Treated Nanocrystalline semiconductor Oxide TiO2 Derived from Sol-gel Process. Jurnal Makara Teknologi, Vol. 14, No. 2Zamrani R.A., dan Gontjang P., 2013. Pembuatan Dan Karakterisasi Prototipe Dye Sensitized Solar Cell (DSSC) Menggunakan Ekstraksi Kulit Buah Manggis Sebagai Dye Sensitizer Dengan Metode Doctor Blade, Jurnal Sains Dan Seni Pomits Vol. 1, No.2, 2301-928X.

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