Gamma camera device and collimator

A gamma camera device for producing an image of an object by means of gamma radiation, comprising:

• a collimator with pinholes, the collimator extending about an object space configured for receiving the object;
• a detection device with at least one detector having a detector surface for detecting, as detector signals, gamma radiation emitted by the object and passing through pinholes of the collimator;
• and
• a controller configured for processing the detector signals into said image of the object,
• wherein the collimator and the object space have a common longitudinal axis with a longitudinal direction,
• wherein the collimator comprises a plurality of groups of pinholes, each group composed of multiple pinholes, each pinhole having a central line,
• wherein for each of said groups, the pinholes lie in a plane perpendicular to the longitudinal axis,
• wherein the pinholes of said groups together see a focus volume, the focus volume having a geometric center, and
• wherein within each of said groups, the respective central line of each of said pinholes passes said longitudinal axis at a distance therefrom, and on a rotation around said longitudinal axis, the central line becomes congruent with the central line of each of the other pinholes of said group.

A collimator for imaging of an object by means of gamma radiation emitted by the object, wherein the collimator has pinholes and is configured to extend about an object space configured for receiving the object,

• wherein the collimator and the object space have a common longitudinal axis with a longitudinal direction,
• wherein the collimator comprises a plurality of groups of pinholes, each group composed of multiple pinholes, each pinhole having a central line,
• wherein for each of said groups, the pinholes lie in a plane perpendicular to the longitudinal axis,
• wherein the pinholes of said groups together see a focus volume, the focus volume having a geometric center,
• wherein within each of said groups, the respective central line of each of said pinholes passes said longitudinal axis at a distance therefrom, and on a rotation around said longitudinal axis, the central line becomes congruent with the central line of each of the other pinholes of said group.