Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Spektra: Jurnal Fisika dan Aplikasinya Jurnal Sains Materi Indonesia Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Marliyadi Pancoko
PRPN-BATAN
Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
FABRICATION OF PLASTIC SCINTILLATOR USING POLYSTYRENE MATRIX BASED Nuri, Hafni Lissa; Pancoko, Marliyadi; Jami, Abdul; Subhiyah, Hana; Ardiyati, Tanti; Sari, Dian Maya; Desviana, Adinda Tisha
Spektra: Jurnal Fisika dan Aplikasinya Vol. 7 No. 3 (2022): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 7 Issue 3, December 2022
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.073.03

Abstract

Experiments on making a plastic scintillator with polystyrene as a base material mixed with fluorescent compounds (primary and secondary dopants) have been performed. Primary dopants (PTP) used to produce emission at wavelengths of visible light and secondary dopants (POPOP) to shift the visible wavelengths to wavelengths that could be detected by Photomultiplier Tube (PMT) ) were carried out. Experiments were performed on the melting points condition of these materials, which had previously been subjected to a thermo-mechanical analysis using a Thermogravimetric Analysis-Differential Scanning Calorimetry (TGA-DSC) machine, where the melting point was in the range of 200-240°C. Furthermore, the fabrication was carried out using the extrusion technique, where polystyrene pellets mixed with PTP (1.5% by weight) and POPOP (0.05% by weight) were fed into an extrusion machine which has four hot areas to obtain a thin plate plastic scintillator. The plates were then analyzed with a UV-Vis Spectrophotometer to determine the absorption spectrum and Fluorescence Spectrophotometer to determine the emission spectrum. From the results of the analysis, it was found that the samples that went through scintillation pellets and without the addition of antioxidants had absorption spectrum data of 330 nm and emission spectrum of 421 nm. These values are in accordance with the characteristics of plastic scintillators on the market.
Synthesis and Characterization of a Polystyrene-based Scintillator for Gamma Detection Pancoko, Marliyadi; Hafni Lissa Nuri; Manaf, Azwar; Dimyati, Arbi; Jami, Abdul
Jurnal Sains Materi Indonesia Vol. 25 No. 1 (2023): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2023.704

Abstract

This study aimed to create and examine plastic scintillators made from a polystyrene matrix, which are widely used in radiation detection due to their favorable properties such as rapid decay time, low cost, resistance to moisture, and ease of fabrication. The scintillators were doped with p-terphenyl (PTP) and 1,4-bis[2-(phenyloxazolyl)]-benzene (POPOP) using an injection method with an extruder machine. The materials were then characterized using various techniques. Fourier Transform Infrared Spectroscopy (FTIR) revealed the presence of aromatic chains which are essential for the scintillation process. Differential Scanning Calorimetry (DSC) analysis showed stable thermal properties with a glass transition temperature of approximately 100ºC. Scanning Electron Microscopy (SEM) showed that the surface of the polymer is amorphous with small bumps and protrusions likely caused by the PTP and POPOP dopants. The optical evaluation indicated that the sample could absorb UV photons up to 340 nm and emit photons in the wavelength range of 400-500 nm with a peak at 421 nm. Gamma spectra analysis indicated that the plastic scintillators performed well in gamma detection and could be used in a Radiation Portal Monitor (RPM).
Kebutuhan Desain Awal Pada Pilot Plant Pengolahan Monasit Menjadi Thorium Oksida (ThO2) Nuri, Hafni Lissa; Prayitno, Prayitno; Jami, Abdul; Pancoko, Marliyadi
EKSPLORIUM Vol. 35 No. 2 (2014): NOVEMBER 2014
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/eksplorium.2014.35.2.2758

Abstract

Data and information collection aimed in order to meetthe needs ofthe initial designfor pilot plantof monazite processing into thorium oxide (ThO2). The content ofthorium inmonaziteis high in Indonesia between 2.9 to 4.1% andrelatively abundantin Bangka Belitung Islands. Thorium can be used as fuel because of its potential is more abundant instead of uranium. Plant of thorium oxide commercially from monazite established starting from pilot plant in order to test laboratory data. Pilot plant design started from initial design, basic design, detailed design, procurement and construction. Preliminary design needs includes data feed and products, a block diagram of the process, a description of the process, the determination of process condition sand type of major appliance has been conducted.
Co-Authors Abdul Jami Arbi Dimyati Ardiyati, Tanti Azwar Manaf Desviana, Adinda Tisha Dian Maya Sari Hafni Lissa Nuri Hafni Lissa Nuri Hana Subhiyah Prayitno Prayitno