Article Per Year (5 Year)
p-Index From 2019 - 2024
4.799
P-Index
This Author published in this journals
All Journal Buletin Udayana Mengabdi Jurnal Biologi Udayana Bumi Lestari BERKALA FISIKA BULETIN FISIKA Jurnal Keselamatan Radiasi dan Lingkungan Kappa Journal
Gusti Ngurah Sutapa
Program Studi Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Udayana
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Materials Science & Nanotechnology Physics Other

Published : 39 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 39 Documents
Search

 1   2   3   4 
X-ray Beam Quality Conformity Test Using Half Value Layer (HVL) Aluminium Filter in Stationary X-ray Device at Academy Teknik Radiodiagnostik and Radioterapi Bali Ni Putu Pande Anita Yulianti; Gusti Ngurah Sutapa; Kadek Yuda Astina
BULETIN FISIKA Vol 24 No 1 (2023): BULETIN FISIKA February Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2023.v24.i01.p04

Abstract

A study was conducted to determine the quality of the X-ray beam using a half value layer (HVL) aluminum filter on a stationary X-ray device at the Akademi Teknik Radiodiagnostik dan Radiotherapi (ATRO) Bali. This study aims to determine the quality of the X-ray beam on a stationary X-ray device at ATRO Bali by looking at the magnitude of the HVL value produced. The tools used are aluminum filters with thicknes of 0.5, 1.0, and 2.0 mm which are varied for each current used, a constant tube voltage of 80 kV, tube currents of 100, 125, 160, and 200 mA, exposure time of 0.1 s and an X-ray multimeter. The value of HVL was determined by linear regression test using SPSS. On each tube current used, the average HVL value was 2.77 mmAl. The t-test indicated that the HVL value is not in accordance with the KMK standard number 1250 in 2009 which is in the range of ? 2.3 mmAl to < 2.5 mmAl. Abstrak Telah dilakukan penelitian untuk mengetahui kualitas berkas sinar-X menggunakan half value layer (HVL) filter aluminium pada pesawat sinar-X stationary di Akademi Teknik Radiodiagnostik dan Radioterapi (ATRO) Bali. Penelitian ini bertujuan untuk mengetahui kualitas berkas sinar-X pada pesawat sinar-X stationary di ATRO Bali dengan melihat besarnya nilai HVL yang dihasilkan. Alat bantu yang digunakan berupa filter aluminium dengan tebal 0,5, 1,0, dan 2,0 mm, yang divariasi pada setiap besarnya arus yang digunakan, tegangan tabung konstan sebesar 80 kV, arus tabung 100, 125, 160, dan 200 mA, waktu eksposi sebesar 0,1 detik dan multimeter sinar-X. Untuk mengetahui besar nilai HVL digunakan uji regresi linier menggunakan SPSS. Pada masing-masing arus tabung yang digunakan diperoleh nilai HVL rata-rata 2,77 mmAl. Hasil uji-t menunjukkan bahwa nilai HVL tersebut kurang sesuai dengan standar KMK nomor 1250 tahun 2009 yaitu dalam rentang ? 2,3 mmAl sampai < 2,5 mmAl.
UJI KELAYAKAN PESAWAT SINAR-X TERHADAP PROYEKSI PA (POSTERO-ANTERIOR) DAN LAT (LATERAL) PADA TEKNIK PEMERIKSAAN FOTO THORAX Kadek Miniati; Gusti Ngurah Sutapa; I Wayan Balik Sudarsana
BULETIN FISIKA Vol 18 No 1 (2017): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Research has been conducted to determine feasibility test of the X-ray planePA and LAT projections on chest x-ray techniques. The study using a water phantom object as a substitute for patients with variations in interval distance ofthe 100-180 cm. Measurement of radiation dose X-rays performed five repetitions , measurable doses had be read on the device electrometer. Exposition factors to the PA projection using a tube voltage of 75 kV, current and time of 3,2 mAs, the irradiation field areaof (30 x 30) cm2.For the LAT projection tube voltage of 80 kV, current and time of 6,3 mAs, and the irradiation field area of (20 x 30) cm2. It the study of the radiation dose X-ray plane projection PA and LAT is optimal is below the limit value at the level of dosage guidelines BAPETEN No 08 of 2011. Obtained PA projections are below the value of 0,4 mGy while LAT projection is below the value of 1,5 mGy. The radiation dose X-rays plane using a variation of 100-180 cm distance is still below the dose limit values ??, thus meeting the objectives anssurance quality and quality control.
UJI RADIONUKLIDA GIPSUM DENGAN METODE LASER INDUCED BREAKDOWN SPECTROSCOPY (LIBS) DAN PROTEKSI RADIASI DENGAN METODE JARAK Mega Wahyu; Ngurah Sutapa; I Wayan Balik Sudarsana
BULETIN FISIKA Vol 17 No 2 (2016): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Research has been done to identify radionuklid which contain in gypsum with LIBS method and radiation protection with distance method. Test of gypsum radionuklid with LIBS method using 1 cm × 3 cm of gypsum and radiation protection with distance method using surveymeter with object gypsum board outside of room, plafond with gypsum matter inside of room and plafond with concrete matter inside of room. Test of radionuklid with LIBS method indicate radionuklid elemen which contain in gypsum is Th (Thorium) with rate intensity 456,5555 a.u and K (Kalium) with rate intensity 198,5555 a.u. From treshold decide for public people is 1 µSv/year can obtain save distance at midle of measurement position is 80 cm from gypsum board outside of room, 100 cm from plafond with gypsum matter inside of room and save for all distance from plafond with concrete matter inside of room. While, at corner of measurment save for all distance from gypsum board outside of room, plafond with gypsum matter inside of room and plafond with concrete matter inside of room.
Utilization of Gamma Co-60 Radiation for Chili Plant (Capsicum annuum L.) Breeding by Using a Physical Mutagen Method Ni Made Purmita Sari; Gusti Ngurah Sutapa; A.A. Ngurah Gunawan
BULETIN FISIKA Vol 21 No 2 (2020): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Chili is one type of vegetable that has many benefits and is favored in Indonesia and aboard. The benefits of chili are used as a kitchen spice and are used in the health sector as a mixture of herbal medicines and even as anti-cancer. Based on data from the Ministry of Agriculture of the Republic of Indonesia, chili productivity per plant is still relatively low (0.20-0.33 kg/tree or 6.84 tons/ha, so there needs an effort for improvement of productivity. Increased chili productivity can be done by plant breeding. In this study has been carried out Co-60 gamma radiation in plant breeding of chili (Capsicum annuum L.) by physical mutagen method. The chili used is red chili (hot chili F1). The purpose of this study is to find out the right Co-60 radiation dose for chili plant breeding. The gamma radiation dose used is 0 Gy as a control, 50, 75, 100, 125 and 150 Gy. The results showed that the right radiation dose for chili plant breeding was 75 Gy.
ANALISIS JAM MAKAN PADA DAUN TANAMAN SAWI HIJAU (Brassica rapa var. parachinensis L.) DENGAN TEKNIK PERUNUT RADIOAKTIF 32P Nurfaizah Nurfaizah; I Gst. Ngurah Sutapa; I Made Yuliara
BULETIN FISIKA Vol 17 No 2 (2016): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

It has been conducted research on the analysis feeding hours of green cabbage leaves (Brassica rapa var. parachinensis L.) with a radioactive tracer technique 32P . The feeding hour treatment plants conducted were at 07.00, 09:00, 11:00, 13:00 , 15:00 and 17:00 . The amount activity of Isotpe 32P applied to 483 µCi/150 ml (168,542 x 103 Bq/ 150 ml) / plant, counting values activity of green cabbage leaves using Radiation Alert Inspector . Data activity was analyzed by ANOVA statistical analysis using SPSS 17.0 version, and Tukey's test with 95% significance result. Results of the analysis show that feeding hours (fertilization) of green cabbage leaves was the most effective at 09.00. Radioactive concentration at 09.00 was different to other hours treatments significantly.
Validation of Daily Rainfall Based on Global Satellite Mapping of Precipitation (GSMAP) Data of Bali and Nusa Tenggara Region Sanjaya Natadiredja; I Ketut Sukarasa; Gusti Ngurah Sutapa
BULETIN FISIKA Vol 19 No 1 (2018): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Limitations of observation data cause analysis and prediction of precipitation is difficult. One way to overcome such limitations is the use of satellite data such as GSMaP, but satellite data needs to be validated before use. This study aims to validate GSMaP rainfall data on observation data in Bali and Nusa Tenggara. Through monthly time series analysis, GSMaP rainfall data tend to have smaller value than observation data, but it has similar data pattern in each region with rain pattern that occurs in November to March (NDJFM). While validation between GSMaP satellite rainfall data and observation using Pearson and RMSE correlation and MBE at each location showed strong positive correlation value (> 0.5), correlation value obtained from each location from 0.82 to 0.93 with RMSE value from 2.08 to 5.51 and MBE values ??from 0.23 to 0.89, this indicates that GSMaP satellite data is valid and can be used to fill in empty data especially in 5 observation areas ie Denpasar, Ampenan, Sumbawa Besar, Bima and Kupang.
Analisis Dosis Efektif Pada Pemeriksaan Computer Tomography (CT) Scan Kepala Di RSUD Sanjiwani Gianyar Putu Gede Agus Krisna Yogantara; Gusti Ngurah Sutapa; I Made Yuliara
BULETIN FISIKA Vol 22 No 2 (2021): BULETIN FISIKA August Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2021.v22.i02.p01

Abstract

Effective dose analysis research has been carried out on head CT scan. The research was conducted at RSUD Sanjiwani Gianyar using secondary data from head CT scan, namely the value of CTDIvol, DLP, current, voltage and scan length. Data are grouped according to age and gender, namely ages 0-4 years, 5-14 years, and over 14 years. The effective dose value is obtained from the product of the DLP value with the conversion factor k. Effective dose analysis was performed using standard DRL values ??for Bapeten Head regulation and ICRP 102. The effective dose of each group was obtained, namely male patients aged 0-4 years were 2.34±0.04 mSv and female patients were 2.4±0.28 mSv; age 5-14 years, male patients were 1.96±0.45 mSv and female patients were 1.89±0.32 mSv; age over 14 years, male patients were 1.88±0.35 mSv and female patients were 1.8±0.35 mSv. The values are still in accordance with the standard determined by Bapeten and ICRP and the CT Scan plane is still suitable for use for a CT scan of the head.
Studi Standarisasi Radioterapi Cobalt-60 Terhadap Kuantitas Sel Darah Pada Penderita Kanker Serviks (Cancer Cervics) Di Rsup Sanglah Denpasar Retianingsih Oeta Ulan; Gusti Ngurah Sutapa; Wayan Balik Sudarsana
BULETIN FISIKA Vol 18 No 2 (2017): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

After doing research with Title Study of Cobalt-60 radiotherapy Standards Against Quantity Blood Cells In Patients with Cervical Cancer (Cancer Cervics) at Sanglah Hospital in Denpasar. This study uses secondary data such as a complete blood from each patient with cervical cancer in 2015 that radiotherapy with fractionation method. The amount of patient data used in this study is 5 pieces. The quantity of blood cells that are analyzed include RBC, HGB, WBC and WBC Components (LY, EO, EO, BA, NE, MO). Fractionation dose is 800-5800cGy. The results of data analysis showed that each blood cell components are still within the range of 2-50%, so a method of radiotherapy is still fit for use.
Analisis Dosis Radiasi Pasien Pada Pemeriksaan CT Scan Menggunakan Aplikasi Si-INTAN Elshaday S.B Siregar; Gusti Ngurah Sutapa; I Wayan Balik Sudarsana
BULETIN FISIKA Vol 21 No 2 (2020): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

CT scan is widely used to diagnose the inside of the human body, so supervision is needed to ensure the health and safety of workers, patients and the public. One surveillance that can be done is to analyze the radiation dose of the patient on CT scan with the application of Si-INTAN. Data processing of the results of CT scan of the head, thorax and abdomen for ages 0-4 years, 5-14 years and ? 15 years using the Si-INTAN application. From the results of the data processing, the highest DRL DLP value and CTDIVOL values were obtained, for CT scan heads were 1732,8 mGycm and 31,92 mGy, the CT scan of the thorax was 2450,78 mGycm and 19,36 mGy, and for CT Abdominal Scans were 3968,85 mGycm and 19,35 mGy.
MENENTUKAN KUANTITAS DAN KOMPONEN LEUKOSIT MENCIT (Mus musculus) PADA TITIK TERENDAH PASCA RADIASI GAMMA CO-60 Ni Kadek Ayu Asari Dewi; Gusti Ngurah Sutapa; I Wayan Balik Sudarsana
BULETIN FISIKA Vol 14 No 2 (2013): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Research has been conducted to determine the lowest point of the quantity and types leukocytes of mice after Co-60 gamma radiation. Number of male mice were used as much as 20 at 35 days of age were using panoramic batch irradiators (IRPASENA) gamma radiation facility at the Centre for Isotope and Radiation Applications (BATAN) by a dose of 1 Gy, 2 Gy, 3 Gy and then observed quantity and types leukocytes of mice every 10 days for 2 months. Obtained from this study the lowest point of the quantity and leukocytes component occured on day 30 approaching day 50. After the 30th day which is day 40 and 50 there was an increase although not significant, 60th day of observation while showed a significant increase.
Co-Authors A. A. Ngurah Gunawan Aulia Nur Aisah Balik Sudarsana Choirul Anam AM Diponegoro Djarwani Soejoko Eka Saputra Elshaday S.B Siregar Farah Sukmana I Gde Antha Asmawan I Gde Antha Asmawan I Gde Antha Kasmawan I Gusti Agung Ayu Ratnawati I Gusti Agung Ngurah Ari Kusuma Putra I Ketut Putra I Komang Widiana I Made Hendra Hadinata I Made Yuliara I Nyoman Paranditayana I Nyoman Pranditayana I Wayan Balik Sudarsana I Wayan Balik Sudarsana I Wayan Balik Sudarsana I Wayan Balik Sudarsana I Wayan Balik Sudarsana I Wayan Balik Sudarsana I Wayan Putu Sutirta Yasa I. M. Yuliara I. M. Yuliara I.M. Yuliara Ida Ayu Putu Aristia Hutami Ida Bagus Alit Paramarta Ida Bagus Alit Paramartha Ida Bagus Made Suryatika Ida Bagus Made Suryatika Ida Bagus Putra Manuaba Kadek Miniati Kadek Sumaja Kadek Yuda Astina Komang Ngurah Suarbawa M. Zully Amrul Hadi Maghfirottul Iffah Mega Wahyu Muhammad Mada Ramadan Purnama N. L. P. Trisnawati Neviaty P Zamani Ni Kadek Ayu Asari Dewi Ni Kadek Nova Anggarani Ni Komang Tri Suandayani Ni Komang Tri Suandayani Ni Luh Putu Trisnawati Ni Luh Putu Trisnawati NI LUH WIDYASARI Ni Made Purmita Sari Ni Nyoman, Ratini Ni Putu Pande Anita Yulianti Ni Putu Winiayu Veramika Ni Wayan Ekayani Nurfaizah Nurfaizah Nyoman Wendri Pascalia Agno Marina Huki Poniman, S. Putu Gede Agus Krisna Yogantara Retianingsih Oeta Ulan Romadhon Ilham Imani Rozi Irhas Rozi Irhas Rozi Irhas Rozy Irhaz Sanjaya Natadiredja Setiono, Made Budi Suandayani, Ni Komang Tri Sudarsan, I Wayan Balik Sukarasa, I Ketut Sylvia Ariska Susanti Titik Purwanti Venesia Sesilia Br Ginting Wayan Balik Sudarsana Widya Karulina Imanda Muhamad Winardi Tjahyo Baskoro Yohana Dian Savitri Yuli Asri Yuliara, I Made