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Ultra-high speed burst-mode imager for multi-frame radiography
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kwiatkowski, Kris Nedrow, Paul Mariam, Fesseha G. Merrill, Frank Morris, Christopher Saunders, A. R. Hogan, Gary E. Douance, Vincent Bal, Yibin Joshi, Atul Auyeung, John |
| Copyright Year | 2010 |
| Abstract | A 720 x 720 pixel hybrid-CMOS imager was fabricated by Rockwell Scientific (now Teledyne Imaging Sensors). Several cameras have been in operation for 5 years, in a variety of static and dynamic experiments, at the 800MeV proton radiography (pRAD) facility at the LANSCE accelerator. The cameras can operate with a per-pulse adjustable inter-frame time of 250ns to 2s, and with an exposure/integration-time as short as 150 ns. Given the 800 ms total readout time, the imager can be externally synchronized to 0.1-to-5Hz, 50-ns wide proton beam pulses, and record 1000-frame radiographic movies of 5-to-30 minute duration. The effectiveness and dependence of the global electronic shutter on the pixelated Si photo-sensor bias voltage is discussed. The spatial resolution dependence of the full imaging system on various monolithic and structured scintillators is presented. We also present features of a new-generation 10-frame, 1024 x 1024 pixel, 50-ns exposure, 12-bit dynamic range imager, which is now in the design phase. |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.nima.2010.11.051 |
| Alternate Webpage(s) | https://permalink.lanl.gov/object/tr?what=info:lanl-repo/lareport/LA-UR-10-05541 |
| Alternate Webpage(s) | https://doi.org/10.1016/j.nima.2010.11.051 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
