Re[3]: Computerised Golw Curve Deconvolution

["TOSH USHINO" <ushinot@songs.sce.com>]

In response to Doug Minnema, Dr. Charles and John Simpson, I purchased Peakfit 
3.18 (DOS version) from Jandel Scientific few years before they got bought out 
by SPSS Inc. I intended to use the program for Panasonic TLD glowcurve 
deconvolution. However, unlike other programs (2-D and 3-D curve fitting 
programs) we purchased from them, the program proved to be not intuitive and 
required more manipulation than I liked. For us to develop a TLD program to 
automatically deconvolute the glowcurves with a link to Peakfit 3.18 appeared 
to be too great a challenge for our limit resource (time & $$, and time=$$). 
(The program is interesting, and would like to spend more time with it but 
can't). Perhaps the new version of the program is much easier to implement. I 
actually started writing my own code for glowcurve deconvolution at home but 
gave up because whether we used Peakfit or my own code, it would have required 
our in-house professional programmers to code it and to document it... a very 
expensive process which would have driven up the cost-per-badge and would have 
made our in-house TLD processing not competitive. 

I have a question for others.... I have been interested in using neural 
network software to spot abnormal glowcurves (e.g., hydrogen sulfide exposure 
on lithium borate phosphors) and TLD element response patterns. I know there 
have been some work done using neural networks. What kind of success have you 
had? Did you write your own neural network code? [I know, I know...if I try to 
implement it, it will drive up the cost-per-badge].

Tosh Ushino
Health Physics Engineer
San Onofre Nuclear Generating Station
ushinot@songs.sce.com