Software for Correction of TCS

Monte Carlo methods demand a detailed knowledge of the detector geometry and construction. This information is not always available, that from the manufacturer being a nominal or estimated value. It is common, therefore, to read that Monte Carlo methods need fine tuning with modification of parameters such as dead layer thickness and even detector diameter to make the model fit experimentally determined data. In some cases, people have resorted to X-raying their detector within its cooled encapsulation in order to measure the true detector size under operating conditions. 

Normally one would not normally use sum peaks for efficiency calibration purposes. However, Arnold and Sima (20004) have shown how GESPECOR can be used to correct the sum peak intensities of and Co to extend the efficiency cahhration energy range up to 2.7 MeV. 

I emphasized earlier that vahd efficiency calibrations at close geometry can only be made directly using nonsumming nuclides. For conventional calibrations, that is true, but Menno Blaauw (1993) has shown that it is possible to use the spectra of nuchdes that are affected by summing to generate calibrations and TCS corrections. 

In the last few years, a considerable amount of development effort has been put into programs that will allow TCS corrections to be made. In the near future, that effort may bear fruit 

Spectrometry with Semiconductor Detectors, North Holland, Amsterdam, The Netherlands. 

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