Dr. Naji Arafat Hj. Mahat
Department of Chemistry, Faculty of Science
Universiti Teknologi Malaysia,
81310 UTM Johor Bahru, Johor.


Utilization of maggot (a soft-bodied legless larva of a fly or other insect) recovered from decomposing human body is commonplace in death investigations. Within 72 hours of death pathological indicators e.g. the decreasing pattern of body temperature may provide reliable information for estimating the time since death. However, beyond such period their evidential values appear unreliable. In this context, insect evidence (the maggot) may prove useful for providing important information relating to the estimated time since death, possible cause of death, relocation of bodies after death, as well as identity of the deceased. Such aspects will be discussed briefly in the talk.

Dr. Izyan Hazwani Hashim
Department of Physics, Faculty of Science
Universiti Teknologi Malaysia,81310 UTM Johor Bahru, Johor.

Radioisotope productions and nuclear transmutations by muon capture reactions

Muon capture reaction is useful to study the nuclear isotopes, astro-nuclear and particle physics interests and those of geological and historical interests. It allows the nuclei to excite up to several Jp states and decay through beta and gamma rays after undergo nuclear transmutation. Several nuclear isotopes are produced by muon capture reactions such as (μ, xn) with x = 0, 1, 2, 3, and so on, and some of them are radioactive isotopes. Identification of radioisotope products is distinguished by measuring the characteristic gamma rays by means of high-sensitivity Ge detectors. Composite and impurity nuclear isotopes of the orders ppm to ppb are investigated.