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Enggel Fransiska
Universitas Jambi
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UJI KESESUAIAN BERKAS SINAR-X DENGAN BERKAS KOLIMATOR PADA PESAWAT SINAR-X DI INSTALASI RADIOLOGI RSUD RADEN MATTAHER JAMBI Enggel Fransiska; Nehru Nehru; Muhammad Ficky Afrianto
Komunikasi Fisika Indonesia Vol 15, No 1 (2018)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (148.38 KB) | DOI: 10.31258/jkfi.15.1.77-83

Abstract

The collimator test is one of the X-ray Quality Control (QC) program, one of the central point beam testing and the area of the collimator beam using the RMI unit. The purpose of the collimator test is to find out the suitability of the broad field of collimator with the area of X-ray beam in tolerance of ≤ 2% Focus Film Distance (FFD) and the correspondence of the X-ray center point in tolerance Ɵ = 3˚ as determined by the Minister of Health Decree No . 1250 / SK / XII / 2009. The study was conducted using variations of FFD at 100 Cm, 90 Cm, 80 Cm, on three X-ray radiation radiology radiation RSUD Raden Matther Jambi. In this study using digital radiograph unit (DR) or computed radiographaphy, no longer using conventional radiographs such as previous studies. Irregularities or wide discrepancies in the area of the X-ray beam are evaluated by evaluating the firm boundary of the line formed by the X-axis and Y-axis, then determining the midpoint between the line boundary and the radiation boundary of the scatter. The deviation results concluded that there was no deviation at the central point of X-ray beam for all X-ray aircraft tested by all aircraft still within the tolerance threshold Ɵ = 3˚. But for the value of the collimator area all the X-ray macine tested has deviations exceeding the predefined 2% FFD threshold where the radiologie france plane occurs deviation on the Y axis with FFD 90 Cm and 80 Cm, hyundai medicaly X- ray on X axis with FFD 100 Cm and 80 Cm, Y axis with FFD 80 Cm, and on villa sistei medicali SpA plane on X axis with FFD 80 Cm, Y axis at FFD 80 Cm.
Pengaruh Faktor Eksposi dengan Ketebalan Objek pada Pemeriksaan Foto Thorax Terhadap Gambaran Radiografi Ayu Wita Sari; Enggel Fransiska
Journal of Health (JoH) Vol 5 No 1 (2018): Journal of Health - Januari 2018
Publisher : LPPM STIKES Guna Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (752.541 KB) | DOI: 10.30590/vol5-no1-p17-21

Abstract

Telah dilakukan penelitian tentang hubungan faktor exspos dengan ketebalan objek pada pemeriksaan foto thorax terhadap hasil gambaran radiografi menggunakan pesawat sinar-X. Pemberian faktor ekspos yang tidak sesuai dapat menyebabkan radiograf tidak dapat memberikan informasi secara optimal, faktor ekspos yang terlalu tinggi dapat menyebabkan hasil radiografi hitam (gelap) begitu juga pemberian faktor ekspos yang terlalu rendah akan mengakibatkan hasil menjadi putih (terang). Perbedaan pemberian faktor ekspos pada setiap pengambilan foto radiografi dipengaruhi oleh ketebalan yang dimiliki tiap objek. Semakin tebal objek yang akan difoto maka faktor ekspos yang digunakan akan semakin tinggi. Untuk mendapatkan hasil radiografi yang bagus diperlukan faktor ekspos yang tepat sehingga dapat membantu dalam mendiagnosa untuk tahap selanjutnya. Dari hasil pengamatan di lapangan didapatkan nilai untuk faktor eksposipada ketebalan objek 14cm; kV:47, mAs:7,1, t:35 ,16cm; kV:48, mAs:8, t:39 ,18cm; kV:49, mAs:9, t:45.
Co-Authors Afrianto, Muhammad Ficky Nehru Nehru Sari, Ayu Wita