Improving detector spatial resolution using pixelated scintillators with a barrier rib structure

Liu, Langechuan; Lu, Minghui; Cao, Weihuan; Peng, Luke; Chen, Arthur

doi:10.1117/12.2216330

Cited by 3 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the detection efficiency of such device was only 0.14 %. To alleviate this contradiction, we used a pixelated structure scintillator array, which was shown effective for improvement of spatial resolution in X-ray imaging [13,14]. In the process of detecting fast neutrons using organic scintillators, the generated recoil protons are emi ed at a certain angle with respect to the incident neutrons and produce scintillation photons along the motion trajectory.…”

Section: Introductionmentioning

confidence: 99%

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Sipm Readout

Chen,

Tang,

Chen

et al. 2024

Preprint

View full text Add to dashboard Cite

Development of the fast neutron radiography with higher penetration capability in Non-Destructive Testing (NDT) techniques is rapidly. The detection efficiency and the imaging spatial resolution are the main problem of the radiography detector for many fast neutron imaging systems. In this paper, a detector composed of pixelated EJ200 scintillator array，an 16 × 16 silicon-photomultipliers (SiPM) array, and a capacitive multiplexing network readout electronics is designed. Using Monte-Carlo simulations，the main parameters of the detector was optimization. Then the detector prototype was fabricated and tested at a 14 MeV D-T neutron source. The preliminary test results showed that the prototype has spatial resolution of 1.26 mm. Using pixelated scintillator structure，the conflict between spatial resolution and detect efficiency could improved. Moreover, SiPMs offer a flexibility for the expansion of application field of the imaging system due to their excellent photon detection performance, relatively low price and joint possibility for large area.

show abstract

Section: Introductionmentioning

confidence: 99%

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Sipm Readout

Chen,

Tang,

Chen

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…To alleviate this contradiction, a pixelated structure scintillator array was employed in this study. It has been validated that the pixelated structure scintillator array is effective for obtaining improved spatial resolution in X-ray imaging and positron emission tomography (PET) systems [13,14]. It also works for the neutron detector system.…”

Section: Introductionmentioning

confidence: 99%

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Silicon Photomultiplier Readouts

Chen,

Tang,

Chen

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

Among non-destructive testing (NDT) techniques, fast neutron radiography with a higher penetration capability has achieved rapid advancements. However, the application of the radiography detector in many fast neutron imaging systems is limited by unfavorable detection efficiency and imaging spatial resolution. In this paper, a fast neutron radiography detector was designed, which was composed of a pixelated EJ200 scintillator array, a 16 × 16 silicon photomultiplier (SiPM) array, and capacitive multiplexing network readout electronics. The main parameters of the detector were optimized using Monte Carlo simulations. In addition, the prototype of the detector was fabricated and tested under a 14 MeV D-T neutron source. The preliminary test results demonstrated that the spatial resolution of the prototype reached 1.2 mm. Moreover, the conflict between spatial resolution and detection efficiency could be mitigated by using a pixelated scintillator structure. Overall, SiPMs enabled the extensive application of the imaging system because of their excellent photon detection performance, relatively low price, and joint possibility for large areas.

show abstract

Developments in Gd2O2S based pixelated-metallic aperture arrays

Wiggins

Johnson

et al. 2022

Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVI

View full text Add to dashboard Cite

Improving detector spatial resolution using pixelated scintillators with a barrier rib structure

Cited by 3 publications

References 6 publications

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Sipm Readout

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Sipm Readout

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Silicon Photomultiplier Readouts

Developments in Gd2O2S based pixelated-metallic aperture arrays

Contact Info

Product

Resources

About