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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 5 Documents
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Search results for , issue "Volume 5 Number 2, September 2016" : 5 Documents clear
Minerals Identification of Bio-Solar Gemstone from Aceh Akmal Nizar; Mursal Mursal; Ismail Ismail
Journal of Aceh Physics Society Volume 5 Number 2, September 2016
Publisher : PSI-Aceh

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Abstract

Salah satu batu mulia yang terkenal di Aceh disebut Bio-Solar. Batu permata ini banyak ditemukan di Aceh, namun, informasi detail tentang batu permata ini masih sangat terbatas. Dalam penelitian ini telah dilakukan karakterisasi batu permata Bio-Solar yang berasal dari Aceh dengan menggunakan X-Ray Florescent (XRF). Hasil penelitian menunjukkan bahwa batu permata Bio-Solar mengandung mineral-mineral CaO (59,8%), SiO2 (19,7%), Fe2O3 (11,1%), Al2O3 (7,5%), dan NiO (1,3%). Dengan membandingkan hasil ini dengan data-data penelitian sebelumnya, telah ditemukan bahwa batu permata Bio-Solar dapat diklasifikasikan sebagai jenis batu giok Vesuvianite. One of well-known gemstones in Aceh is called Bio-Solar. This gemstone is found a lot in Aceh. Nonetheless, the detail information of this gemstone is still limited. None knows if this gemstone can be classified as jade. This study has characterized this gemstone (Bio Solar) from Aceh using X-Ray Florescent (XRF). The results show that the Bio-Solar gemstone contains minerals of CaO (59.8%), SiO2 (19.7%), Fe2O3 (11.1%), Al2O3 (7.5%), and NiO (1.3%). By comparing this results to the available mineral data, we found that the Bio-Solar gemstone from Aceh can be classified as Vesuvianite jade. Keywords: Batu Giok, Bio Solar, Vesuvianite, XRF
Synthesis of Natural Hydroxyapatite from Aceh’s Bovine Bone Nurul Fadhilah; Irhamni Irhamni; Zulkarnain Jalil
Journal of Aceh Physics Society Volume 5 Number 2, September 2016
Publisher : PSI-Aceh

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Abstract

Telah dilakukan penelitian yang mengkaji tentang sintesis hidroksiapatit berbasis tulang sapi lokal Aceh. Kandungan kalsium (CaO) di dalam tulang sapi dapat dimanfaatkan untuk mensintesis hidroksiapatit. Pada penelitian ini, hidroksiapatit disintesis dari tulang sapi yang telah dicuci bersih dan dihilangkan dari lemak  dengan menggunakan NaOH. Tulang sapi dikeringkan dan dikalsinasi terlebih dahulu pada temperatur 1000oC selama 2 jam. Tulang sapi kering kemudian ditumbuk hingga dihasilkan serbuk. Untuk mendapatkan ukuran partikel yang seragam, serbuk tulang sapi dimilling dengan kecepatan putaran 250 rpm selama 5 jam sehingga dihasilkan serbuk tulang sapi murni yang berukuran nano. Kemudian serbuk dikarakterisasi menggunakan XRD (X-Ray Diffraction) untuk membuktikan terbentuknya fasa CaO. Serbuk CaO yang telah terbentuk disintesa menjadi hidroksiapatit menggunakan metode solid statereaction dengan cara menambah asam posfat. Selanjutnya, serbuk CaO dan asam posfat disintering pada temperatur 900oC selama 2 jam. Penentuan fasa hidroksiapatit ini dilakukan dengan melakukan pengujian XRD. Berdasarkan hasil pengujian XRD, fasa CaO dan hidroksiapatit telah berhasil terbentuk sempurna. The research that examines the synthesis hydroxyapatite of Aceh’s bovine bone has been done. Calcium oxide (CaO) in bovine bone can be used to synthesized hydroxyapatite. In this research, hydroxyapatite synthesized from bovine bone that washed clearly and removed from the fat with adding NaOH. Bovine bone dried and calcined first at temperature of 1000oC for 2 hours. Then, dried-bovine bone is granulated become a powder. For uniformity particle size, bovine bone powder was milled with a 250 rpm rotation speed for 5 hours to produce pure bovine bone powder in nano-sized. Then, the bovine bone powder was characterized using X-Ray Diffraction (XRD) to evidence that CaO phase has been formed. CaO powder will be syntehesized become hydroxyapatite using solid state reactiod method with adding phosphoric acid. Finally, powder CaO and phosphoric acid sintering at temperature of 900oC for 2 hours. Determination of hydroxyapatite phase is done by testing the XRD. Based on test results of XRD, CaO and hydroxyapatite phase has been successfully formed.
Study on Amount of Radiation Intensity of Sr-90 and Am-241 for some Commercial Cigarette Filters using Geiger-Muller Detector Sitti Hadaina; Elin Yusibani; Gunawati Gunawati
Journal of Aceh Physics Society Volume 5 Number 2, September 2016
Publisher : PSI-Aceh

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Abstract

Pengukuran intensitas radiasi pada beberapa filter rokok komersial menggunakan detektor Geiger-Muller dengan sumber radiasi Sr-90 dan Am-241 telah dilakukan. Pengukuran ini dilakukan untuk menghitung besarnya koefisien atenuasi dari filter rokok tersebut. Dalam penelitian ini, jarak dari filter rokok dengan sumber radiasi divariasikan yakni sebesar 6 cm, 7 cm dan 8 cm. Terdapat dua jenis perlakuan sampel yakni sampel filter yang mendapatkan gaya tekan sebesar 5 ton selama 10 menit dan non-tekan (kondisi normal). Hasil penelitian menunjukkan bahwa semakin jauh sumber radiasi terhadap detektor, maka semakin kecil intensitas radiasi yang diperoleh. Daya tembus radiasi dengan sumber Sr-90 lebih besar dibandingkan dengan radiasi Am-241. Oleh karena itu, unsur radioaktif Sr-90 memiliki intensitas yang lebih besar dibandingkan dengan unsur radioaktif Am-241. Study on amount of radiation intensity for some commercial cigarette filters using detector Geiger-Muller with radiation source of Sr-90 and Am-241 has been done. The purpose of the measurement is to measure a mass attenuation of the filter. In this research, the distance of the cigarette filters with the source of radiation was varied i.e 6 cm, 7 cm and 8 cm. The sample cigarette filters was treated, i.e press and non-press (normal condition). The cigarette filters are pressed with a force of 5 tons for 10 minutes using hydraulic press. It was founded that the radiation intensity will decrease with the distance. The amount of radiation intensity of Sr-90 is more higher than Am-241.
Wind Speed Analysis using Weibull Distribution in the Region Blang Bintang Aceh Besar Khairiaton Khairiaton; Elin Yusibani; Gunawati Gunawati
Journal of Aceh Physics Society Volume 5 Number 2, September 2016
Publisher : PSI-Aceh

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Abstract

Telah dilakukanan penelitian terhadap kecepatan angin di kawasan Blang Bintang kabupaten Aceh Besar untuk melihat bagaimana potensi pembangunan Pembangkit Listrik Tenaga Bayu (PLTB) di daerah tersebut. Penelitian ini dilakukan dengan cara menganalisa kecepatan angin berdasarkan data dari pengukuran anemometer menggunakan distribusi Weibull untuk tahun 2012 sampai 2015. Berdasarkan distribusi Weibull didapatkan bahwa parameter bentuk (k) yang diperoleh di kawasan Blang Bintang bernilai kecil yang bernilai sekitar 1.4 dan parameter skala (c) yang cenderung stabil bernilai sekitar 4. Dari nilai k dan c diperoleh bahwa kecepatan angin pada tahun 2012 yaitu sebesar 1 m/s dengan probabilitas 15%, tahun 2013 dan 2014 bernilai sebesar 0.5 m/s dengan probabilitas sebanyak 21% dan 19%, sedangkan untuk tahun 2015 sebesar 1 m/s sebanyak 17%. Study of the wind speeds in the region Blang Bintang, Aceh Besar district has been done to asses the potential of wind power instalation. The wind speed data was obtained from anemometer which has been instaling in that area. The datas were analyze by the Weibull distribution within the range for the years of  2012 to 2015. The results show that the shape parameter (k) is small, the value is around 1.4 and the scale parameter (c) tends to be stable, within the value of 4. Based on the value of k and c give that the wind speed in 2012 is equal to 1 ms-1 with a probability of 15%, in 2013 and 2014give the same value at 0.5 ms-1 with a probability of 21% and 19%, respectively while for 2015 is 1 ms-1 as much as 17%.
Identification of Adhesive Material Substance in Ancient Fortress Located at Aceh Besar using XRF Nurul Fitri; Elin Yusibani; Evi Yufita
Journal of Aceh Physics Society Volume 5 Number 2, September 2016
Publisher : PSI-Aceh

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Abstract

Penelitian ini bertujuan untuk menganalisa kandungan material perekat yang digunakan pada tiga benteng purba di kawasan Aceh Besar, yaitu Benteng Indrapatra (BIP), Benteng Inong Balee (BIB), dan Benteng Kuta Lubok (BKL). Analisa dilakukan menggunakan X-Ray Flourescence (XRF) dengan metode Fusion Beads. Hasil uji XRF menunjukkan bahwa ketiga benteng tersebut memiliki kandungan senyawa oksida yang sama, dengan persentase CaO sebanyak 46,16-51,37%, SiO2 sebanyak 2,56-6,68%, MgO sebanyak 1,01-2,16%, Al2O3sebanyak 0,73-1,18%, dan Fe2O3 sebanyak 0,53-0,70%. Senyawa-senyawa tersebut merupakan komposisi penyusun dari batu kapur jenis Kalsit. Hasil tersebut dibandingkan dengan material perekat yang digunakan saat ini (Semen) didapatkan memiliki komposisi yang berbeda. Semen mengandung komposisi oksida SiO2 dan SO3yang lebih besar daripada material perekat pada benteng purba yaitu sebesar 18% dan 3% untuk sampel sebanyak 1 gr. Preliminary study about adhesive material content in ancient fortress at Aceh Besar has been done. The fortress are Indrapatra, Inong Balee and Kuta Lubok. The sample is analyzed using X-Ray Flourescence (XRF) with Fusion Beads method. The result of XRF shows that all of the fortress have the same oxide compound which is CaO, with percentage of (46,16-51,37)%, SiO2 around (2,56-6,68)%, MgO around (1,01-2,16)%, Al2O3 around (0,73-1,18)%, and Fe2O3 around (0,53-0,70)%. The compounds are constituent of limestone of calcite. The results have been compared with the modern adhesive material (cement). It was found that cement has a different oxide composition with the adhesive material used in ancient fortress. Cement contains SiO2 and SO3 more than ancient adhesive material, the values are 18% and 3%, respectively, in one gram sample.

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