Development of double-scattering-type Compton camera with double-sided silicon strip detectors and NaI(Tl) scintillation detector

作者：Seo Hee; Kim Chan Hyeong^*; Park Jin Hyung; Kim Jong Kyung; Lee Ju Hahn; Lee Chun Sik; Lee Jae Sung

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2010, 615(3): 333-339.

DOI：10.1016/j.nima.2010.02.060

• Compton camera
• Double-scattering
• Double-sided silicon strip detector
• NaI(Tl) scintillator

In the present study, a double-scattering-type Compton camera, which incorporates two double-sided silicon strip detectors (DSSDs) as the scatterer detectors and an NaI(Tl) detector as the absorber detector, was constructed as a proof-of-principle system for a compact high-imaging-resolution Compton camera. The energy and timing resolutions of the component detectors were determined accurately for effective Compton imaging. Then, the Compton camera was used to image an (22)Na point source at 3.7 cm. The imaging resolutions of the current system were 9.0 and 4.8 mm FWHM for 511 and 1275 key, respectively, which are fairly good considering the limitations of the detectors and data acquisition (DAQ) electronics employed. Given the characteristics of the component detectors, it is believed that the double-scattering Compton camera can be developed as a very compact system (similar in size to a hand-held radiation survey meter) providing very high imaging resolution.

• 出版日期2010-4-11