Edge effects in silicon photodiode arrays

Steven B. Kenney; E. Dan Hirleman

doi:10.1117/12.46494

1 July 1991 Edge effects in silicon photodiode arrays

Steven B. Kenney, E. Dan Hirleman

Proceedings Volume 1480, Sensors and Sensor Integration; (1991) https://doi.org/10.1117/12.46494
Event: Orlando '91, 1991, Orlando, FL, United States

Abstract

Photodiode arrays used in laser diffraction particle sizing instruments must be calibrated to account for detector-to-detector variations in sensitivity. We have calibrated an Insitec EPCS-P ring detector (planar-diffused, p on n silicon photodiode array) by scanning a focussed laser beam across the detector surface. A deconvolution of the known intensity distribution of the laser beam from the measured signal resulted in detector response as a function of position. Detector response was approximately constant over the region of the ideal active detector and it decreased exponentially in the region beyond the ideal detector boundary. A diffusion length constant of 50 microns gave the best fit to the measured data. Theoretical predictions of calibration factors based on measured detector response agreed reasonably well with Malvem and Insitec calibration factors obtained from the traditional uniform light illumination method. This indicates that edge effects in different ring detectors are similar.

Citation Download Citation

Steven B. Kenney and E. Dan Hirleman "Edge effects in silicon photodiode arrays", Proc. SPIE 1480, Sensors and Sensor Integration, (1 July 1991); https://doi.org/10.1117/12.46494

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