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A Single Chip Computational Sensor System for Neutron Detection Applications

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11 Author(s)
Schemm, N. ; Dept. of Electr. Eng., Univ. of Nebraska-Lincoln, Lincoln, NE, USA ; Balkir, S. ; Hoffman, M.W. ; Bauer, M.
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This paper presents the design and test results of a standalone computational radiation sensor system based on a single chip solution. A low-power sensor front end with a charge sensitive amplifier and an event driven analog-to-digital converter is integrated on the same chip as a dedicated microcontroller to process and bin the data from the neutron detector diode heterojunction according to pulse height. This combination effectively implements a single chip multichannel analyzer with the capability to do further processing of the data in software. The design was fabricated in a 0.18 μm CMOS technology with field tests demonstrating the validity of the approaches taken. The total system power consumption is 24 μW.

Published in:

Sensors Journal, IEEE  (Volume:10 ,  Issue: 7 )