We are now planning to develop a positron emission tomograph dedicated to small animals,
such as rats and mice, which meets the demand for higher sensitivity. For the positron …

The long patient port of a PET scanner tends to put stress on patients, especially patients with
claustrophobia. It also prevents doctors and technicians from taking care of patients during …

The OpenPET geometry is our new idea to visualize a physically opened space between
two detector rings. In this paper, we developed the first small prototype to show a proof-of-…

We are developing a novel, general purpose isotropic-3D PET detector X'tal cube which has
high spatial resolution in all three dimensions. The research challenge for this detector is …

The single-ring OpenPET (SROP), for which the detector arrangement has a cylinder shape
cut by two parallel planes at a slant angle to form an open space, is our original proposal for …

Previously, we proposed a new depth of interaction (DOI) encoding method and proved that
it worked successfully with four-layered Gd/sub 2/SiO/sub 5/ crystals for a small animal …

Annihilation photon acollinearity is a fundamental but little investigated problem in positron
emission tomography (PET). In this paper, the cause of the angular deviation from 180.00 is …

A high-performance brain PET scanner, jPET-D4, which provides four-layer depth-of-interaction
(DOI) information, is being developed to achieve not only high spatial resolution, but …

A new method for a four-stage depth of interaction (DOI) detector is proposed. The four-stage
DOI detector is constructed with two kinds of Gd/sub 2/SiO/sub 5/:Ce (GSO) crystals doped …

We are developing a high-performance brain PET scanner, jPET-D4, which provides 4-layer
depth-of-interaction (DOI) information. The scanner is designed to achieve not only high …