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ITS » Non Degree » Teknik Bangunan Kapal
Posted by dee@its.ac.id at 03/10/2013 09:06:32  •  2157 Views


STUDI LAMA WAKTU PENYINARAN UNTUK PENGUJIAN RADIOGRAFI

STUDY THE EXPOSESURE TIME FOR RADIOGRAPHY TEST

Author :
FALEVI, BOGI ANDRE  ( 6208030006 )




ABSTRAK

Perhitungan lama waktu penyinaran untuk pengujian radiografi dilakukan untuk memperoleh waktu yang dibutuhkan dalam satu kali penembakan. Study ini dilakukan agar film yang dihasilkan sesuai dengan tingkat tebal kehitaman film pada densitas sekitar 2 untuk gamma ray. Untuk mencapai densitas tersebut salah satuhnya dibutuhkan ketepatan penyinaran. Pengujian radiografi adalah pengujian yang memanfaatkan radio isotop sebagai sumber radiasi. Pada pengujian ini menggunakan kamera gamma ray yang berisikan radioisotop langkah pertama adalah mengetahui aktifitas currie bentuk material dan tebal material serta jenis material untuk menentukan teknik penyinaran jarak source ke film SFD serta film yang digunakan. Setelah semua diketahui dan ditentukan maka proses penembakan dapat dilakukan dengan perhitungan waktu untuk mencapai densitas 2. Perbandingan waktu penyinaran menggunakan beberapa jenis film. Berdasarkan perhitungan dalam uji coba yang dilakukan pada pengujian radiografi ada beberapa faktor yang mempengaruhi perhitungan waktu penyinaran yakni tebal material jenis material teknik penyinaran jarak sumber radiasi ke film aktivitas currie film yang digunakan.pada perhitungan film sedang AGFA D7 dan KODAK AA didapatkan selisih rata-rata 4.5 detik setiap kali penembakan.


ABSTRACT

Coanting the exposesure time for radiography test done for reach the time that needed in one shot. This study is do in order to the film which made is equal with the bild-black lavel of the film in density about two for gamma ray. To reach that density the one way is needed is the accuration a flight link. The radiography test is a test which using isothop radio as the radiation source. In this test using gamma ray camera with radio isothop inside. The first way is knowing currie activity the character of material and the materials bold also the type of the material to decide the exposesure technique source gap to the film SFD and the film wich using. After all is known and decide than the shoot process could do with countingthe timeto the reach density level 2. Comparation the exposesure time use several film type. According the counting in the test which done to radiography test there are some factor influence the counting of exposesurethat is the materials bold the materials type the exposesures technique the gap between the source and te film and the currie activity which used. In the counting of middle film AGFA D7 and KODAK AA got diferrence around 4.5 second in each shoot.



KeywordsWaktu penyinaran; Radiography test; Gamma ray
 
Subject:  Radiografi;Mekanika fluida
Contributor
  1. Rasiawan, ST. MT
Date Create: 22/09/2011
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-NonDegree-62002130000440
Collection ID: 62002130000440
Call Number: 621.367 3 Fal s


Source
Non Degree of Ship Building Engineering, 621.367 3 Fal s, 2013

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Copyright @2013 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




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  1.  ITS-NonDegree-27304-6208030006-Abstract_id.pdf - 177 KB
  2.  ITS-NonDegree-27304-6208030006-Abstract_en.pdf - 177 KB




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