A new pulse width signal processing with delay-line and non-linear circuit (for ToT)

作者：Orita Tadashi^*; Takahashi Hiroyuki; Shimazoe Kenji; Fujiwara Takeshi; Boxuan Shi

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2011, 648: S24-S27.

DOI：10.1016/j.nima.2011.01.023

• Time-over-threshold
• Delay line
• Linearity
• Analog-to-digital conversion
• Comparator

Traditional pulse-height-analysis systems suffer from the complexity arising from ADC circuits. In particular, it is difficult to be applied to a large format array of pixilated detectors. Each channel of such an energy resolving multichannel system must be low power consumption and therefore it must be composed of simple circuits. The time-over-threshold (ToT) method provides an inexpensive way in such a system. However, ToT method suffers from a poor linearity. We now propose a method to improve the linearity with the dynamic time-over-threshold method that relies on a dynamic threshold voltage and the trapezoidal shaping method.

• 出版日期2011-8-21