Radiation detection system and signal processor for radiation detection

A radiation detection system comprising:

• a radiation detector that outputs charge generated by incidence of radiation;
• a preamplifier that converts the generated charge into an analog signal;
• an A/D conversion part that converts the analog signal from the preamplifier into a digital signal;
• a denoising filter that removes noise from the digital signal from the A/D conversion part;
• and
• a gradient detection part that detects a step-based gradient from a digital signal having passed through the denoising filter, wherein
• the denoising filter is one that removes the noise by taking a weighted moving average of values of the digital signal with use of a weighting factor depending on a difference from a predetermined reference value.

A signal processor for radiation detection, the signal processor comprising:

• a preamplifier that converts charge outputted from a radiation detector on which radiation is incident into an analog signal;
• an A/D conversion part that converts the analog signal from the preamplifier into a digital signal;
• a waveform shaping part that generates a pulse signal from the digital signal from the A/D conversion part;
• a pulse height detection part that detects peak values of the pulse signal from the waveform shaping part;
• a count part that, on the peak values basis obtained by the pulse height detection part, how many times the pulse signal from the pulse height detection part;
• and
• a denoising filter that is provided between the A/D conversion part and the pulse height detection part and removes noise from the digital signal or the pulse signal, wherein
• the denoising filter is one that removes the noise by taking a weighted moving average of values of the digital signal or the pulse signal with use of a weighting factor depending on a difference from a predetermined reference value.

A signal processor for radiation detection, the signal processor comprising:

• a preamplifier that converts charge outputted from a radiation detector on which radiation is incident into an analog signal;
• an A/D conversion part that converts the analog signal from the preamplifier into a digital signal;
• a denoising filter that removes noise from the digital signal from the A/D conversion part;
• and
• a gradient detection part that detects a step-based gradient from a digital signal having passed through the denoising filter, wherein
• the denoising filter is one that removes the noise by taking a weighted moving average of values of the digital signal with use of a weighting factor depending on a difference from a predetermined reference value.