Analisis Sebaran Radiasi Hambur Di Sekitar Pesawat Sinar-X Pada Pemeriksaan Tomografi Ginjal
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Abstract
titik pengukuran terhadap sebaran radiasi hambur pada pesawat sinar-X pada saat
pemeriksaan tomografi ginjaldi Rumah Sakit Pusat Angkatan Darat Gatot Soebroto
sehingga dihasilkan kontur sebaran radiasi hambur dengan menggunakan perangkat lunak
surfer.Penelitian ini menggunakan phantom abdomen dengan kondisi penyinaran faktor
eksposi tetap meliputi tegangan tabung 70 kV, arus tabung dan waktu penyinaran 50 mAs.
Sampel dalam penelitian adalah jarak 50 cm, 100 cm, dan 150 cm dari titik tengah pusat
pemeriksaan ke titik pengukuran. Pengukuran ini dilakukan dengan alat ukur
termoluminesensi dosimeter (TLD-100 LiF). Hasil penelitian menunjukkan bahwa jumlah
paparan radiasi akan semakin menurun terhadap penambahan jarak, sehingga dapat
mengetahui titik-titik / tempat yang aman terhadap paparan radiasi.
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