Moulding tissue-equivalent(TE)granular plastic is needed to fabricate 5inch spherical chamber of tissue equivalent proportional counter(TEPC).There are two basic moulding processes that can be used,namely compression and injection moulding.The compression moulding is Molding tissue-equivalent (TE) granular plastic is needed to fabricate a 5-inch spherical chamber of tissue equivalent proportional counter (TEPC). There are two basic molding processes that can be used, namely compression and injection molding. The compression molding is