A large area reconfigurable MOEMS microshutter array for coded aperture imaging systems

2008 ◽  
Author(s):  
Mark E. McNie ◽  
David O. King ◽  
Nicola Price ◽  
David J. Combes ◽  
Gilbert W. Smith ◽  
...  
Keyword(s):  
Imaging Systems ◽  
Coded Aperture ◽  
Large Area ◽  
Coded Aperture Imaging

scholarly journals Prototype Imaging CD-ZN-TE Array Detector

1997 ◽  
Vol 487 ◽  
Author(s):  
P. F. Bloser ◽  
T. Narita ◽  
J. E. Grindlay ◽  
K. Shah
Keyword(s):  
High Energy ◽  
Array Detector ◽  
Coded Aperture ◽  
Metal Contacts ◽  
Large Area ◽  
Coded Aperture Imaging ◽  
Imaging Detector ◽  
Gold Contact ◽  
Analysis System ◽  
Czt Detectors

AbstractWe describe initial results of our program to develop and test Cd-Zn-Te (CZT) detectors with a pixellated array readout. Our primary interest is in the development of relatively thick CZT detectors for use in astrophysical coded aperture telescopes with response extending over the energy range ∼ 10 – 600 keV. The coded aperture imaging configuration requires only relatively large area pixels (1–3 mm), whereas the desired high energy response requires detector thicknesses of at least 3–5 mm. We have developed a prototype detector employing a 10 × 10 × 5 mm CZT substrate and 4 × 4 pixel (1.5 mm each) readout with gold metal contacts for the pixels and continuous gold contact for the bias on the opposite detector face. This MSM contact configuration was fabricated by RMD and tested at Harvard for uniformity, efficiency and spatial as well as spectral resolution. We have developed an ASIC readout (IDE-VA-1) and analysis system and report results, including ∼ 4% (FWHM) energy resolution at 60 keV. A prototype design for a full imaging detector array is discussed.

scholarly journals Coded-aperture imaging systems: Past, present and future development – A review

2016 ◽  
Vol 92 ◽  
pp. 59-71 ◽  
Author(s):  
Michał J. Cieślak ◽  
Kelum A.A. Gamage ◽  
Robert Glover
Keyword(s):  
Future Development ◽  
Imaging Systems ◽  
Coded Aperture ◽  
Coded Aperture Imaging

Laboratory coded-aperture imaging experiments: radial hole coded masks and depth-sensitive CZT detectors

2004 ◽  
Author(s):  
Jae Sub Hong ◽  
Santosh V. Vadawale ◽  
Minhua Zhang ◽  
Eric C. Bellm ◽  
Andrew Yousef ◽  
...  
Keyword(s):  
Coded Aperture ◽  
Coded Aperture Imaging ◽  
Czt Detectors

Micro coded aperture imaging applied to laser plasma diagnosis

1979 ◽  
Vol 31 (2) ◽  
pp. 129-134 ◽  
Author(s):  
J. Brunol ◽  
R. Sauneuf ◽  
J.P. Gex
Keyword(s):  
Laser Plasma ◽  
Coded Aperture ◽  
Plasma Diagnosis ◽  
Coded Aperture Imaging

scholarly journals Phaseless Terahertz Coded-Aperture Imaging Based on Incoherent Detection

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 226 ◽  
Author(s):  
Long Peng ◽  
Chenggao Luo ◽  
Bin Deng ◽  
Hongqiang Wang ◽  
Yuliang Qin ◽  
...  
Keyword(s):  
High Resolution ◽  
High Speed ◽  
Phase Retrieval ◽  
Time Frame ◽  
Frame Rate ◽  
Future Research ◽  
Coded Aperture ◽  
Main Work ◽  
Coded Aperture Imaging ◽  
The Matrix

In this paper, we propose a phaseless terahertz coded-aperture imaging (PTCAI) method by using a single incoherent detector or an incoherent detection array. We at first analyze and model the system architecture, derive the matrix imaging equation, and then study the phase retrieval techniques to reconstruct the original target with high resolution. Numerical experiments are performed and the results show that the proposed method can significantly reduce the system complexity in the receiving process while maintaining high resolution imaging capability. Furthermore, the approach of using incoherent detection array instead of single detector is capable of decreasing the encoding and sampling times, and therefore helps to improve the imaging frame rate. In our future research, the method proposed in this paper will be experimentally tested and validated, and high-speed PTCAI at nearly real-time frame rates will be the main work.

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