Norehan Mohd Nor

University of Technology Malaysia | UTM · Department of Physics

Abstract— The Soft and Lung tissue equivalent substitute (STES and LTES) were developed from urethane PMC121/30 Dry (A and B) of Smooth-On, USA. The part A and B were mixed in the ratio 1:1 and further mixed with calcium carbonate (CaCO3) at a ratio 2:1 by mass. Air moisture was extracted from the mixture for 10minutes. This is the STES and the den...

The detectability of fibrils in mammographic phantom images by morphological enhancement was analysed in the present study. Materials that mimic fibrils were imaged by a digital mammography machine at 28 and 29 kVP. The images were processed by a dilation technique to produce second set of images. Receiver operating characteristic analysis was perf...

The Adult Male ® phantom of ORNL was modified and subjected to photon exposure from Ir-192 source. A general-purpose Monte Carlo Transport Code, MCNPX2.7E (Monte Carlo N-Particle Transport Extended Version 2.7) was employed to estimate the energy loss due to escape radiation-bremsstrahlung for twelve radiosensitive tissues in anteroposterior geomet...

The photon flux to dose conversion factor for the lung and the soft tissues from an idealized photon exposure at 1m AP was achieved using MCNPX ®. The lung and the soft tissues of the modified Adult Male ® phantom of ORNL were subjected to dose function modification, DE and DF. The estimated DF(E) for the energy range 0.1MeV to 15MeV compare favora...

The Adult Male® and Adult Female® phantoms of ORNL were modified with Ir-192 source and additional tally cards from the MCNP® data library. The lung and eleven soft tissues were used for the study. The soft tissues include Liver, Stomach, Ovaries, Testes, Brain, Thyroid, Kidney, Pancreas, Gall Bladder, Heart, and the Small Intestine. The computatio...

The dependence of the radiation effect on the individual led to the actualization and acceptance of the standard man in the 1940s, and later transformed into the reference man in 1963. The reference man was defined based on the Caucasian data that were the available data in literatures then. This Caucasian data conflict with the physiology, anatomy...

The dependence of radiation effect on individuals led to the actualization and acceptance of the standard man in the 1940s, the standard man later transformed into the reference man in 1963. The definition of the reference man was a Caucasian data, so it conflicts with the physiology, anatomy and the metabolic data of the Asian people; this was cha...

Nuclear structure data plays an important role in nuclear physics studies and applications such as nuclear power generation. This article presents evaluations of a mean-field approach to describe two nuclear structure quantities namely the electric and magnetic moments. The Hartree-Fock-plus-pairing approach was employed with pairing correlations t...

Description of static nuclear properties is one of the main aims of theoretical nuclear physics studies. This work presents the uncertainties due to pairing fit procedure for three static nuclear quantities of rare-earth nuclei, namely the nuclear charge radius, electric quadrupole moment, and the moment of inertia. The Hartree-Fock (HF)-plus-pairi...

Electron paramagnetic resonance (EPR) can be used as radiation detection for appropriate materials exposed to ionizing radiation. In this study, potassium tartrate hemihydrate (PT) was irradiated with Co-60 gamma rays with absorbed dose range from 1 to 9 Gy. The effect of temperature to the unirradiated and irradiated samples were investigated usin...

Neutron radiographic images have been used in a wide variety of industrial research and non-destructive testing applications since the early 1960s. Image in any form was never an exact representation of the object under observation because it is always corrupted by the imaging system itself. Neutron radiography image also encounters the same proble...