Data acquisition system developed for the resonance absorption project

Guy J. Arnone; Charles L. Hollas

doi:10.1117/12.142892

1 April 1993 Data acquisition system developed for the resonance absorption project

Guy J. Arnone, Charles L. Hollas

Proceedings Volume 1824, Applications of Signal and Image Processing in Explosives Detection Systems; (1993) https://doi.org/10.1117/12.142892
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

Abstract

Minimizing signal errors and losses in high-rate nuclear-imaging systems places demands on the signal-processing and data acquisition electronics. We will describe both the data acquisition system being developed for the resonant absorption project and techniques used to minimize signal errors and losses. The data acquisition system acquires pulse-height spectra from an array of gamma-ray detectors. The data is made available to multiple processors by using the VMEbus standard to provide concurrent data analysis. In addition, we use the VxWorks real-time operating system in conjunction with a SUN workstation to develop the application software. We have designed a pulse-height-analysis board that is optimized for low dead time. This board has eight independent signal channels, each consisting of a charge integrator, a fast analog-to-digital converter, and a first-in/first-out memory. This board also contains a 68020 CPU that performs the initial data compression and stores digitized data into dual-ported memory. By using an independent high-speed signal channel for each detector, we are able to improve performance over the standard multiplexed techniques commonly in use.

Citation Download Citation

Guy J. Arnone and Charles L. Hollas "Data acquisition system developed for the resonance absorption project", Proc. SPIE 1824, Applications of Signal and Image Processing in Explosives Detection Systems, (1 April 1993); https://doi.org/10.1117/12.142892

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available