1D fast coded aperture camera
Abstract
A fast (100 MHz) 1D coded aperture visible light camera has been developed as a prototype for imaging plasma experiments in the EUV/X-ray bands. The system uses printed patterns on transparency sheets as the masked aperture and an 80 channel photodiode array (9 V reverse bias) as the detector. In the low signal limit, the system has demonstrated 40-fold increase in throughput and a signal-to-noise gain of ≈7 over that of a pinhole camera of equivalent parameters. In its present iteration, the camera can only image visible light; however, the only modifications needed to make the system EUV/X-ray sensitive are to acquire appropriate EUV/X-ray photodiodes and to machine a metal masked aperture.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 01, 2015
- Source ID
- 10.1063/1.4917345
Entities
People
- Magnus Haw
- Paul M. Bellan
Organizations
- Air Force Office of Scientific Research
- California Institute of Technology
- National Science Foundation
- United States Department of Energy