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All Journal PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
Nanang Triagung Edi Hermawan
Direktorat Pengaturan Pengawasan Fasilitas Radiasi dan Zat Radioaktif BADAN PENGAWAS TENAGA NUKLIR Jln. Gajah Mada No.8 Jakarta Pusat 10120
Electrical & Electronics Engineering Energy Physics Other

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PENGGUNAAN PERALATAN RADIATION PORTAL MONITOR DALAM RANGKA MENDUKUNG KEAMANAN NUKLIR NASIONAL Nanang Triagung Edi Hermawan
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 3 (2014): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2014
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

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Abstract

The issue of security is a very serious concern of the world community after the bombing of the World Trade Center in the United States on September 11, 2001. Threat of terrorism will be more dangerous if they use radioactive or nuclear material in the form of radiological dispersal devices (RDDs). RDDs also known dirty bomb. Dirty bomb is a conventional bomb mixed with radioactive substances as impurity. In addition to the effects of power damaged by their explosive capabilities, dirty bombs also caused tremendous fear due to radioactive contamination. Any use of radioactive and nuclear materials should have the license from the competent regulatory body. Smuggling, illegal trafficking, and abuse of radioactive and nuclear materials must be prevented. The total area and form an archipelago country likes Indonesia have a vulnerability to smuggling of radioactive and nuclear materials from abroad. One of the tools that can be used for prevention of smuggling is Radiation Portal Monitor (RPM). RPM is a set of detector equipment for gamma and neutron radiation that can check a vehicle or cargo container without having to open the payload. RPM needs to be installed at any convenient border crossing points. By RPM, cargo inspection will run faster, more practical, and has a high accuracy. Keywords: security threat, radioactive material, nuclear material, dirty bomb, and RPM.
PENENTUAN KORELASI EMPIRIS LOKAL PERPINDAHAN PANAS PADA BAGIAN SEKTOR ELLIPS MODEL SUNGKUP AP1000 Nanang Triagung Edi Hermawan
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 1 (2012): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2012
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

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Abstract

Nuclear reactor technology is one application of the theory of nuclear physics by usingenergy generates from fission reaction in nuclear fuel. AP1000 reactor design applies containment surface cooling by natural air flow. Air flows at inner gap from bottom of concentric cylindrical ellipse sector part to upper of containment surface. Heat transfer characteristic on ellipse sector is very important to be known because in this part heat accumulation from cylindrical heat transfer is happened. Natural convection heat transfer could be represented by empirical correlation equation. Experimental studies have been done on AP1000 containment model proportion 1:40. The result of the experiment indicates that containment surface cooling in accident scenario couldbe happened optimally. Average temperatureof the outer surface of containment is 55.82 0C (well below re-crystallization point for SS-304, which is about 900 0C). The local empirical correlation from this experiment is Nux = 0,577Ra*0,2532, for Rayleigh numbers 7,51 x 105< Ra* < 7,08 x 1010. Keywords: AP1000 reactor, containment cooling, ellipse sector, and empirical correlation.
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