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All Journal MEDIA MEDIKA INDONESIANA BERKALA FISIKA SAINS DAN MATEMATIKA YOUNGSTER PHYSICS JOURNAL Jurnal Teknik Sipil dan Perencanaan Jurnal Fisika Unand The Indonesian Biomedical Journal Arsitektura : Jurnal Ilmiah Arsitektur dan Lingkungan Binaan Jurnal Arsitektur ARCADE Jurnal Arsir Journal of Physics and Its Applications Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Jurnal Arsitektur ZONASI Cendekia Journal of Pharmacy Physics Communication Jurnal Arsitektur ARCADE Jurnal Pengabdian Masyarakat Inovasi Indonesia
Wahyu Setia Budi
Department Of Physics, Faculty Of Science And Mathematics, Diponegoro University
Arts Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : YOUNGSTER PHYSICS JOURNAL

 1   2 
PERBANDINGAN NILAI DENSITAS CITRA MENGGUNAKAN GRID BERGERAK (MOVING GRID) POSISI HORISONTAL DAN VERTIKAL Supriyati Supriyati; Wahyu Setia Budi; Heri Sutanto
Youngster Physics Journal Vol 2, No 3 (2013): Youngster Physics Journal Juli 2013
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

In making radiographs  often differences exposure  factors used when using  moving  of horizontal and vertical. This study aims to determine the comparative value of the density of the resulting image when using a moving grid of horizontal and vertical position. So that research results can be applied in an effort to improve the quality of the radiograph. The study begins with the initial  test  without the grid to determine   density value, the second initial test using a moving grid both  horizontally  and vertically without  the  use  of material / objects.  Research   continued with three  aluminum thickness variation are  1 mm, 3 mm and 5 mm. Then using acrylic  material three thickness   variation are 1 cm,  2 cm and 3 cm. Results of image density measured using a densitometer.Results are then analyzed the data.  The  results  of research  show   value  of   the   image   using  horizontal    grid  density has    smaller  values  than    the  vertical    but   still within the   range  of  values density using   vertical   grid.  Thus   it can    be  said    that    the   image  density  values using  moving    grid   horizontal   position   is  not different with    density  of  the image using a vertical grid at the same exposure factors.Keywords: radiograph,  moving grid,  density,  comparison value
Laju paparan dan dosis radiasi dari pasien terapi kelainan kelenjar tiroid dengan pemberian radiofarmaka Iodium-131 Ahmad Mutohar; Wahyu Setiabudi; Rini Shintawati
Youngster Physics Journal Vol 6, No 1 (2017): Youngster Physics Journal Januari 2017
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

Research about exposure and dose rate from patients with thyroid gland disorders therapy who received radiopharmaceutical Iodine-131 is done by direct measurement using a survey meter. In this study, the exposure rate collected from 37 patients who received doses of radiopharmaceutical therapy with activity ≤ 30 mCi and 13 patients who received doses of radiopharmaceutical therapy with activity> 30 mCi. Exposure rate of each patient was subsequently changed in the form of the dose rate. The results obtained that all patients who received a dose of a radiopharmaceutical with activity ≤ 30 mCi, produce dose rate below the maximum extent permitted to leave the hospital.  While patients who received doses with activity > 30 mCi, produce a dose rate above generate maximum extent permitted to leave the hospital. Besides that, the research also analyzed the reduction of dose rate from each patient. A decrease of dose rate (within 1 hour after administration of radiopharmaceutical) is affected by the excretion rate and rate of uptake of iodine in the blood.  Specially, patient who received a dose with activity > 30 mCi, efective half-life value is determined from a decrease of the dose rate each patient. The results obtained that effective half-life of I-131 in the body of every patient in the range of 6 to 14 hours. Patient H had the shortest effective half-life and patient M has longest effective half-life. The difference of effective half-life of I-131 affected by  biological elimination/ biological half-life of each patients.Keywords: Exposure rate, dose rate, Iodine-13 therapy patients, effective half-life
EVALUASI METODE PERHITUNGAN KETEBALAN PERISAI PADA RUANG DIGITAL RADIOGRAFI Wulandhari Wulandhari; Wahyu Setia Budi; Agung Dwiyanto
Youngster Physics Journal Vol 4, No 1 (2015): Youngster Physics Journal Januari 2015
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

This research would discuss about the methods to determine shielding thickness for X-Ray of digital radiography room published by BIR (British Institute of Radiology), NCRP (National Council on Radiation Protection), KEMENKES No.1014/Menkes/SK/XI/2008 and Perka BAPETEN No. 4 (2013). Each method assume different considerations so evaluation is needed in terms of it’s ability to control external radiation exposure.                Shielding thickness based on NCRP and BIR need data such as space map area of the other side operation X-Ray, shift workers, total number of patient, and distance of primary and secondary radiation to the point of occupation, all of data collected based on survey before experiment. Then shielding thickness calculated  based on the dose rate inside and outside room be used as a comparation.                 The result  of primary Pb shielding thickness by NCRP 49 is 1,00  mm, NCRP 147 is 0,469 mm and BIR is amount of 0,650 mm. The secondary Pb thickness shielding by NCRP 49 is 0,500 mm, NCRP 147 is 0,170 mm and BIR is amount of 0,00980 mm. Shielding thickenss based on dose rate, for primary Pb shielding thickness is  0,898 mm and secondary Pb shielding thickness is 0,987 mm respectivelly. The result of shielding thickness based on NCRP 49 method is closer with the result by shielding thickness was based on dose rate. Keywords: NCRP 49, NCRP 147, BIR, Shielding Thickness, Dose Rate.
Penentuan karakteristik cacahan pada counter dengan menggunakan sumber standar 152Eu, 60Co dan 137Cs Hendrika Liana Sari; Wahyu Setia Budi
Youngster Physics Journal Vol 6, No 2 (2017): Youngster Physics Journal April 2017
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

The determination count of caracteristics on a counter using the standard source 152Eu, 60Co and 137Cs. The calibration in Counter A due measurement activity source of  Europium-152 (152Eu), Cobalt-60 (60Co) and Cesium-137 (137Cs), because Cesium has one peak of energy. From the calculation on obtained efficiency the average of a sistem when using counter DIN711 is 0,0237±0,0028 and efficiency the average for each Counter A is 0,0243±0,0029. Of the value of activity between the two source measurable by both counter can be seen that counter DIN711 having results activity that were more accessible activity on certificates. To deviation of 19,71 % in counter DIN711 and 19,92 % in counter a.But counter a has deviation of 0.45 % of the measurement result of counter DIN711.Keywords: Spektrometer Nuklir, Counter, Calibration Spektrometer, Uji Banding, Calibration Linierityes, Stabilitas Test
DISTRIBUSI FLUKS NEUTRON SEBAGAI FUNGSI BURN-UP BAHAN BAKAR PADA REAKTOR KARTINI Fatkhiyatul Athiqoh; Wahyu Setia Budi; Choirul Anam; Tri Wulan Tjiptono
Youngster Physics Journal Vol 3, No 2 (2014): Youngster Physics Journal April 2014
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

The effective multiplication factor (keff) and the flux distribution in the Kartini reactor which used Uranium Zirconium Hydride (UZrH) as fuel, pure water (H2O) as moderators and cooland has been analyzed using Monte Carlo simulation. The flux distribution analyzed by splitting core reactor become 5 rings (B, C, D, E and F). The effective multiplication factor (keff) and flux distribution calculated by MCNP 4C with burn-up variation 0%, 2,5%, 5%, 7,5%, 10%, 12,5%, 15%. The result shows that the critical condition obtained from burn-up rate 0% up to 5%. The highest value of flux distribution in the middle, at ring B and the value gets smaller towards to edge of reactor core.Keywords : flux distribution, keff, MCNP, Kartini reactor
ANALISIS PERBANDINGAN PARAMETER DAN PROFIL DOSIS MENGGUNAKAN PHANTOM STANDAR DAN TIDAK STANDAR Nora Fajria; Wahyu Setia Budi; Zaenal Arifin
Youngster Physics Journal Vol 3, No 4 (2014): Youngster Physics Journal Oktober 2014
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

A study has been conducted to analyze the dose parameters are CTDI100, CTDIw, CTDIvol, DLP and dose profiles by using standard phantom (150 mm) and non-standard phantom (300 mm). This research utilized an abdomen phantom, CT Dose Profiler and software Ocean. Exposure factors in this study in accordance with the conditions of the abdomen routinely performed at the Hospital of the tube voltage 120 kV, current 350 mA, collimation 40 mm, and pitch 1.375. The detector is placed in the center of the phantom and scanning with variation of scan-length 150 mm and 200 mm in the standard phantom (150 mm) and the variation of the scan-length 150 mm, 200 mm, 300 mm in non-standard phantom (300 mm). The result obtained is the parameter dose values in the non-standard phantom (300 mm) are higher than standard phantom (150 mm). At a scan length of 150 mm, the difference in value is 4.825% CTDI100, CTDIw 4.858%, 4.823% CTDIvol, and DLP 4.820%. Meanwhile, the difference in the value of the parameter dose at the scan length of 200 mm is CTDI100 3.477%, 3.494% CTDIw, CTDIvol 3.510%, and DLP 3.512%. The resulting dose profile has similar peak-dose value but have a different width so that the dose profile in non- standard phantom (300 mm) is wider and having higher FWHM value than the standard phantom (150 mm) because non-standard phantom has longer scan length that lead to excessively scattered radiation.Keywords: CT Dose Profiler, dose profiles, scan length, standard phantom, non- standard phantom, CTDI100, CTDIw, CTDIvol, DLP, FWHM.
PERBANDINGAN KUALITAS CITRA CT SCAN PADA PROTOKOL DOSIS TINGGI DAN DOSIS RENDAH UNTUK PEMERIKSAAN KEPALA PASIEN DEWASA DAN ANAK Rozanah Rozanah; Wahyu Setia Budi; Zaenal Arifin
Youngster Physics Journal Vol 4, No 1 (2015): Youngster Physics Journal Januari 2015
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

The use of scaning protocol with high dose and low dose in CT scan would affect the quality of the images obtained. Because of the importance of good radiographic images in the enforcement of proper patient diagnosis, then performed an analysis of the image quality obtained from both protocols.Image quality assessment of high-dose protocols and low doses for routine head examinations carried out through performance analysis using the AAPM CT phantom performance, comparison of the value of GM conspicuity and Contrast to Noise Ratio (CNR) of the image of the patient as well as comparison of gray scale images through image histogram comparison phantom homogeneous and patient image histogram.Results of analysis of the performance of the two protocols by assessing the accuracy of the CT number, noise, low contrast resolution and spatial resolution showed that high-dose protocol has better performance than low-dose protocol. Image with high-dose protocol has an average GM conspicuity of 0.3863 and CNR 7.0105, while the image with a low dose of 0.4144 and 6.2725 at CNR. Comparison of gray scale image of the protocol through the image histogram comparison homogeneous phantom and patient image shows that the image of a low-dose protocol has variation of intensity gray value that is wider than high-dose protocol.Keywords: Computed Tomography, scaning protocol, image quality, GM conspicuity, CNR
Biodistribusi radiofarmaka Tc99m DTPA pada pemeriksaan renografi Dini Desita; Wahyu Setia Budi; Gani Gunawan
Youngster Physics Journal Vol 6, No 2 (2017): Youngster Physics Journal April 2017
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

Reasearch about biodistribution on 25 patients with renography examination using the technique of in-vivo and in-vitro in nuclear medicine has conducted. The purpose of this reasearch is to determinate the value of activity on examination of kidney and bladder, determine biodistribution Tc99m DTPA on examination of the kidney and bladder, futhermore to determine biological half-life time in the kidney. Reasearch carried out by using radioisotope Tc99m with DTPA which carrier substances for examination of the kidney. Renography examination is done by injecting Tc99m DTPA intravenously into the patient’s arm as much as 4 to 8 mCi conjuction with posterior imaging in the kidney area in 10 to 15 minutes by using a gamma camera. Based on percentage of activity in getting from both kidneys, the left kidney is higher in compared to the right kidney. As for the bladder in second patients increased very significant due to illness in patients with chronic renal failure so that the kidney function is not functioning properly and radiopharmaceutical absorbed more in the bladder. The results of biodistribution activity Tc99m DTPA percentage is high on the bladder. The results obtained from the average half-life time (0,235 ± 0,001) hours. While the results of Tc99m DTPA effective half-life time in the body of each patient in the range of 0,5 to 2 hours. First patients has a longest biological half-life time. Differences in the effective half-life time of each patient is affected by the elimination of biological or biological half-life time of each patient is different too.Keywords: Tc99m, DTPA, renography, biodistribution, effective half-life time.
Studi Metode Spektroskopi Plasma Laser Tekanan Rendah untuk Identifikasi Unsur Tembaga Ainul Ibnu Khotob; Wahyu Setia Budi; Ali Khumaeni
Youngster Physics Journal Vol 5, No 4 (2016): Youngster Physics Journal Oktober 2016
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

The study on laser plasma spectroscopy has been conducted in Optoelectronics and Laser Laboratory, Physics Department, Diponegoro University, to identify the copper spectrums in samples of pure copper and copper alloys. In this study, some of the tested parameters are the comparison of ambient pressure, laser energy and types of sample. In comparative study on ambient pressure, the researcher compared the plasma laser and the spectrum that is constructed of pure copper at the pressure of 1 atm and 3 Torr with PFN 85%. The study on varieties of laser energy was conducted with the PFN values used on pure copper sampel which is at 3 Torr condition, between the range of 75%, 80%, 85%, 90% and 95%. In the test on sample types, the samples used are pure copper, commercial copper, brass key (Cu-Zn) and bronze coin (Cu-Al), at the pressur of 3 Torr and PFN 85%.. As the result, the plasma on ambient pressure of 3 Torr were formed bigger than at 1 atm and it has more clear and better colored spectrum. The higher value of laser’s PFN also lead to greater formed plasma. The dominant and consistent spectrums formed are Cu I 521,82 nm, Cu I 515,32 nm, Cu I 510,56 nm and Cu I 406,26 nm. Based on the calculation conducted by using the Boltzmann plot method, the value f plasma’s temperature that has been formed is rangen in value of 9503,37 – 10906,54 Kelvin.
Penentuan persentase uptake radiofarmaka Tc99m Sulfur Colloid pada sidik hati (Liver scan) Istifadatun Ni’amah; Wahyu Setiabudi; Fadil Nazir
Youngster Physics Journal Vol 6, No 1 (2017): Youngster Physics Journal Januari 2017
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

Based on data from the World Health Organization, showed that liver disease in Indonesia is in endemic high ranks. Early diagnosis of liver disease is very necessary for prevention and minimize the risk of liver disease. Research has been conducted on 28 patients on the biodistribution test of the liver scan using in vivo nuclear medicine technique that aims to determine the accumulation of counts Tc99m Sulfur Colloid in the body's metabolism, the percentage uptake activity in the heart, spleen, kidney, bladder, and liver as the target organ. The study was conducted using Tc99m obtained from elution of Mo99 generator and mixed with sulfur colloid. Tc99m allows a radiopharmaceutical can be detected and known location and sulfur colloid to determine where the target of radiopharmaceutical is accumulated. Liver scan is performed by injecting Tc99m Sulfur Colloid intravenously into the patient's arm as much as 2- 6mCi. Furthermore, the anterior posterior planar imaging in abdominal cavity at 5 minutes and 1 hour after injection of the patient by using a gamma camera. Determining the state of liver function can be seen from the percentage uptake activity at 5 minutes and 1 hour, the shape and size of the heart which can be evaluated from the image obtained. Biodistribution of  Tc99m Sulfur Colloid showed a high percentage of the liver after 5 minutes and 1 hour. Based on the value percentage uptake activity obtained, there were 18 patients with a normal liver and 10 patients with abnormal liver. Keywords: Tc99m Sulfur Colloid, liver scan, nuclear medicine, gamma camera
Co-Authors Ade Ika Susan Afgani, Jundi Jundullah Agung Dwiyanto Ahmad Mutohar Ainul Ibnu Khotob Alan Tanjung Aji Prastowo Alfian Rizani Ali Khumaeni Anis Nila Kusuma Anugrah Ariyani S. Arif Fahmi Arifah, Dwi Intan Asep Yoyo Wardaya Astrihasna Shafa Bambang Haris Suhartono, Bambang Haris Choirul Anam Choirul Anam AM Diponegoro Chorirul Anam Dewandaru, Ardian Dewantoro, Fajar Dewantoro, Fajar Dhahryan Dhahryan Dini Desita Dwi Siwi Retnoningsih Eddy Prianto Eko Hidayanto Erni Setyowati Fadil Nazir Fajar Arianto Fatkhiyatul Athiqoh G. B. Suparta Gagoek Hardiman Gagoek Hardiman Gani Gunawan Gani Gunawan Hamdani, Muhammad Alif Iza Handayani, Liska Tri Harianja, Bernard Hendrika Liana Sari Heri Sugito Heri Sutanto Hidayatullah, Aydymas Davansyah I Wayan Ari Makmur Ismail Ismail Istifadatun Ni’amah Juhroh, Aminatul Jundi Jundullah Afgani K Sofjan Firdausi K. Sofjan Firdausi Kaka, Susanti Radi Kesawa Sudarsih Ketut Sofjan Firdausi, Ketut Sofjan Khomilia, Crysant Ayu Sufi Kusminarto Kusminarto Kusminarto Kusminarto Kusminarto Kusminarto Kusworo Adi Liska Tri Handayani Maesadji Tjokro Nagoro Maesadji Tjokro Nagoro Maliki Maliki Maria Carizza Pandora Raharjo Masrokan Masrokan Masrokan, Masrokan Michelson Fahrurazi Much Azam Muhamad Adi Muharam Budi Laksono, Muharam Budi Nora Fajria Nur Dwi Prasetyo Pandora Raharjo, Maria Carizza Prasetyo Basuki Pratama, Arthana Setia Priyono, Setyo Purwanto Purwanto Qalby, Luthfia Rahmawati, Fatimah Dwi Rini Shintawati Rozanah Rozanah Rusmaharani, Diyah Sihotang, Pandapotan Sugiarto, Oki Suhardi Suhardi Sunarsih Sunarsih Supriyati Supriyati Suryono Suryono Susanti, Audry Nadifa Susila Wardaya, Susila Susilo Susilo Susilo Susilo Susilo Susilo Sutiah Sutiah Sutiyowati Sutiyowati, Sutiyowati Sutrati Melissa Malik Syamsiar, Syamsiar Taqwim S, M Ainut Titi Purwati Tri Wulan Tjiptono Tri Wulan Tjiptono Very Richardina Vitria, Yati Weirna Yusanti Wibowo, Danang Rujito Widiastuti, Ratih Wulandhari Wulandhari Zaenal Arifin