Related Experiment Videos
A modified chair geometry for whole body counting
Nuklearmedizin. Nuclear Medicine
|October 1, 1976
Summary
Researchers modified the Marinelli chair for whole body counting by having subjects sit in a "Buddha Posture." This improved detector efficiency for the lower legs, enhancing sensitivity and uniformity in radiation measurements.
Area of Science:
- Medical Physics
- Nuclear Medicine
Background:
- The Marinelli chair is a standard setup for whole body counting.
- Current Marinelli chair geometry presents detection inefficiencies for the lower extremities.
Purpose of the Study:
- To modify the Marinelli chair geometry to improve detection efficiency for the lower body.
- To enhance the sensitivity and uniformity of spatial response in whole body counting.
Main Methods:
- Utilized a modified chair geometry with subjects in a crossed-legged "Buddha Posture."
- Conducted studies using humanoid phantoms and a human volunteer.
- Compared the modified geometry against the standard Marinelli chair.
Main Results:
- The "Buddha Posture" modification significantly improved detection of the lower leg region.
- Enhanced sensitivity was observed compared to the standard Marinelli chair.
- Improved uniformity of spatial response was achieved with the modified geometry.
Conclusions:
- Modifying the chair geometry to incorporate the "Buddha Posture" effectively addresses the limitations of the standard Marinelli chair.
- This adaptation offers a practical solution for more accurate and uniform whole body counting, particularly for lower limb activity.