An investigation of a coincidence detection system for an all-digital small animal PET scanner / 中华核医学与分子影像杂志
Chinese Journal of Nuclear Medicine and Molecular Imaging
;
(6): 223-225, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-436181
ABSTRACT
Objective To investigate and design a coincidence detection system for an all-digital small animal PET scanner and evaluate its preliminary performance properties.Methods This coincidence module adopted a coincidence identification mode based on singles data in list-mode.Using digital signal processing technology,energy calibration,crystal identification,timing alignment and coincidence events extraction were performed on singles data in list-mode.The obtained data could be used for image reconstruction.Results The 13 × 13 crystal array was well recognized by the position histogram of one lutetium yttrium orthosilicate (LYSO) crystal block.In the coincidence timing histogram of the micro-Derenzo phantom,1.36 ns full width at half maximum was obtained.The rods with a diameter of 1.2 mm were clearly displayed in the reconstructed image of the micro-Derenzo phantom.Conclusion The coincidence module can provide satisfactory performance to meet the design needs of an all-digital small animal PET scanner.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Diagnostic study
Language:
Chinese
Journal:
Chinese Journal of Nuclear Medicine and Molecular Imaging
Year:
2013
Type:
Article
Similar
MEDLINE
...
LILACS
LIS