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Detection of line shape parameters in normal and abnormal biological tissues | ||
| Iraqi Journal of Physics | ||
| Article 1, Volume 10, Issue 17, 2012, Pages 77-82 | ||
| Authors | ||
| Rana M. Yas; Asia H. Al- Mshhdani; Mazin M.Elias; Zaynab T. Al-Sheibani | ||
| Abstract | ||
| Doppler broadening technique is suggested to monitor the development of tumours. It depends on the sensitivity of positronium (Ps) annihilation parameters to the sub- microstructural changes in biological tissues. This technique uses high resolution HpGe detector to measure the lineshape parameters (S and W) in normal mice's mammary tissues and adenocarcinoma mammary tissues as a function of tumour growth. The results demonstrate that the central parameter (S) decreases and the wing parameter (W) increases as the tumour grow. It is found that the S parameter changes considerably with the distribution of voids which are affected by the tumour development. Therefore the present technique can successfully be employed to monitor the development of tumours. | ||
| Keywords | ||
| Doppler broadening; lineshpe parameters; biological tissues | ||
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