Pembuatan detektor sintilasi dengan bahan organik Naphtalen

Abstract

The organic scintillator detectors made of naphtalene (C101-10) had been fabricated and tested. For this purpose the naphtalen powder are pressed at 150 kN/cm . The diameter of pressed powder is 5 cm and the density thickRess of the scintillator are variated from 107.14 mg/cm to 801.50 mg/cm . From test result, it's found that the efficiency is (6.7 ± 0.2)%. This efficiency achieved at the density thickness of scintillator 687.00 mg/cm for Cs-137. While for Sr-90 the efficiency is (59.3 ±20.3)% at the density thickness of scintillator 286.25 mg/cm , for Co-60 the efficiency is (2.5 ± 2.1)% at the density thickness of scintillator 157.56 mg/cm and for Eu-152 the efficiency is (7.4 ± 0.7)%2 at the density thickness of scintillator 138.44 mg/cm . For point sources of Cs-137, Sr-90, Co-90 and Eu-152, the optimum thickness density is 286.25 mg/cm iv This document is Undip Institutional Repository Collection. The author(s) or copyright owner(s) agree that UNDIP-IR may, without changing the content, translate tiFe sublission to any medium or.format for the purpose of preservation. The author(s) or copyright owner(s) also agree that UNDIP-IR may keep more thri one copy of this subrriission for purposes of security, back-up and preservation. ( http://eprints.undip.ac.id) Telah dibuat detektor sintilasi dengan sintilator organik naphtalen (C10H8). Sintilator dibuat dengan cap menekan bubuk organik naphtalen bertekanan 150 kN/cm , diameter 5 cm dan iemvariasi ketebalan sintilator mulai dari 107,14 mg/cm sampai 801,50 mg/cm . Dari hasil pengujian didapat efis.ensi detektor (6,7 ± 0,2)% pada ketebalan 687,-00 mg/cm untuk Cs-137, efiiiensi detektor (59,3 ± 0,3)% pada ketebalan 286,25 mg/cm untuk Sr-90, efisi2nsi detektor (2,5 ± 0,1)% pada ketebalan 157,56 mg/cm untuk Co-60 danzefisiensi detektor (7,4 ± 0,7)% pada ketebalan 13,44 mg/cm untuk Eu-152. Dan ketebalan optimum 286,25 mg/cm untuk somber radiasi Cs-137, Sr-90, Co-60 dan Eu-152. iii Itiay, without changing the content, translate the submission to any medium or format for the purpose of preservation. The author(s) or copyright owner(s) also agree that UNDIP-IR may keep more than one copy of this submission for purposes of security, back-up and preservation. ( http://eprints.undip.ac.id)