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All Journal Jurnal Teras Kesehatan Jurnal Kesehatan Saintika Meditory
Oktavia Puspita Sari
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Health Professions Languange, Linguistic, Communication & Media Medicine & Pharmacology Nursing Physics Public Health

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Analisa Ketebalan Kayu Bulian Terhadap Densitas Film Sebagai Kemampuan Serapan Kayu Bulian Terhadap Radiasi Analisa Ketebalan Kayu Bulian Terhadap Densitas Film Sebagai Kemampuan Serapan Kayu Bulian Terhadap Radiasi Oktavia Puspita Sari
JURNAL TERAS KESEHATAN Vol 8 No 2 (2025): Jurnal Teras Kesehatan
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Politeknik Al Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38215/2kss8m23

Abstract

  In Indonesia, various types of wood show potential as radiation shielding materials, particularly those with sufficient hardness to substitute for lead (Pb). Bulian wood (Eusideroxylon zwageri), commonly known as ironwood, is one of the strongest species from the Sumatran forest. It is highly durable, resistant to termites, insect attacks, environmental fluctuations, and even seawater. Given these properties, studying its radiation absorption capacity is essential to assess its feasibility as a lead substitute in radiation shielding. This research investigates the absorption capacity of Bulian wood at varying thicknesses and analyzes its density equivalence on film compared to lead sheets. The study employed a quantitative, experimental method conducted in the Radiography Laboratory of the Faculty of Vocational Studies, Baiturrahmah University. Film density was measured at each thickness variation of Bulian wood, corresponding to levels on the step wedge. Data were processed using bivariate analysis to determine correlations between Bulian wood thickness and lead sheet equivalence. The results revealed a p-value of 0.00 (p < 0.05), indicating rejection of the null hypothesis and acceptance of the alternative. A significant relationship was observed between 25 cm thick Bulian wood and 2 mm thick lead, suggesting their film density values are equivalent.   
UJI KESAMAAN BERKAS KOLIMATOR DENGAN VARIASI JARAK FFD (FOCUS FILM DISTANCE) PADA PESAWAT SINAR-X Cicillia Artitin; Chairun Nisa; Oktavia Puspita Sari; Neneng Anjarwati
Jurnal Kesehatan Saintika Meditory Vol 7, No 2 (2024): November 2024
Publisher : STIKES Syedza Saintika Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30633/jsm.v7i2.2849

Abstract

The collimator is a part of the x-ray device that has the function of regulating the size of the field. If this field is not aligned, the anatomy that should enter the irradiation field is not exposed to radiation. The large number of exposures performed can result in a mismatch between the area of the irradiation field and the X-ray beam produced. Distance variations are used to determine the suitability or value of the shift in the collimator field area tested. This study aims to determine the feasibility of a collimator on an X-ray plane by determining the similarity of the collimated beam with the X-ray beam.The type of research used is quantitative with experimental methods in the radiology installation of Andalas University Hospital Padang in August 2023 with variations of FFD 90 cm, 100 cm, 110 cm, and 120 cm. The measuring instrument used collimator test tool with collimation size 14x18 cm using small focal spot and large focal sp-axis (horizontal) and Y-axis (vertical) values by not exceeding 3% of FFD (ΔX + ΔY ≤ 3% of FFD).The test results of the collimator beam similarity test with FFD distance variations that comply with the tolerance limit ≤ 2% FFD are at FFD 100 cm, 110 cm, and 120 cm when using a small focal spot. While those that do not match or exceed the tolerance limit ≤ 2% FFD are FFD 90 cm small focal spot, FFD 90 cm, 100 cm, 110 cm, and 120 cm when using a large focal spot. Collimation that is feasible to use in the radiographic imaging process on a small focal spot with a distance (FFD) starting from 100 cm. The large focal spot is not feasible to use and needs to be improved.Keywords: Conformity test, Beam collimation, FFD distance variation
Co-Authors Chairun Nisa cicillia artitin Neneng Anjarwati