X‐Ray Transmission and Compton CT Investigation of Some Gastropods from Sassari, Sardinia, in Italy

Abstract

Transmission and Compton tomographic images of a few gastropods (type: Helix aspersa and Monzettee) were obtained using a tube source of x‐rays. Transmission tomographic systems consist of an x‐ray tube, image intensifier, and CCD camera. A Compton tomographic imaging system consists of an x‐ray tube, translation–rotation arrangement for sample, collimated NaI (Tl) detector, and the associated electronics for the image acquisition. Transmission images are obtained at 27 kV and 4 mA and Compton images at 40 kV and 4 mA. Images obtained in these two methods are compared and analyzed.

Keywords:

• Gastropods
• X‐ray tube
• CCD camera
• Solid angle
• Geometrical efficiency
• Compto
• Doppler broadening
• Images

Acknowledgments

One of the authors (DVR) undertook this work with financial support from AICTP, Trieste, Italy, and Department of Bio‐System Engineering, Yamagata University, Japan. We are very grateful to Prof. Dr. G. Furlan, AICTP, Head, ICTP‐UNESCO Training and Research in Italian laboratories for continuous encouragement and help throughout the study.