Design and evaluation of gapless curved scintillator arrays for simultaneous high-resolution and high-sensitivity brain PET

the relationship between academic self-concept and academic achievement in english and general subjects of the students of high school

according to research, academic self-concept and academic achievement are mutually interdependent. in the present study, the aim was to determine the relationship between the academic self-concept and the academic achievement of students in english as a foreign language and general subjects. the participants were 320 students studying in 4th grade of high school in three cities of noor, nowshah...

Implantable Microsystems for High-Resolution Interfacing to the Brain

Design and performance evaluation of spheroid geometry for brain PET scanner using Monte Carlo modeling

Introduction: There has been a curiosity about the spheroid geometry for PET scanners developments since several years ago, therefore in this study, we are aiming to evaluate the performance of this geometry and compare its performance with cylindrical geometry using Monte Carlo simulation. Methods: We simulated a spheroid geometry with a radius of 199 mm...

Design of a High-Resolution and High-Sensitivity Scintillation Crystal Array for PET With Nearly Complete Light Collection

Spatial resolution improvements in positron emission tomography (PET) can be achieved by developing detector arrays with finer resolution elements. To maintain high sensitivity and image quality, the challenge is to develop a finely pixellated scintillation crystal array with both high detection efficiency and high light collection. High detection efficiency means the crystals must be relativel...

Charged-particle tracking with high spatial and temporal resolution using capillary arrays filled with liquid scintillator

We have developed a new technique that allows the trajectories of ionizing particles to be imaged with very high spatial and temporal resolution. This technique, developed for future experiments in high-energy physics, may also be applied in other fields. Central to the technique is a detector consisting of a bundle of thin, glass capillaries filled with a liquid scintillator of high refractive...