Gas cherenkov adc_sum spectrum

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top (red): spec_r.gas.adc_sum_t, no cut;
top (green): spec_r.gas.adc_sum_t, for sample electron events selected by 2D cut in preshowerE vs. showerE;
top (blue): spec_r.gas.adc_sum_t, for sample pion events selected by 2D cut in preshowerE vs. showerE;
bottom: same as top, log scale.

**Figure:** spec_r.gas.adc_sum_t for a high electron run
$\includegraphics[bb=20 40 580 700, angle = 0, width=300pt]{right-adcgas-cleanevents_3734.ps}$

Xiaochao Zheng 2001-05-01