{'fraction_non_alphanumeric': 0.021367521367521368, 'fraction_numerical': 0.023504273504273504, 'mean_word_length': 4.453488372093023, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
A High Precision Peak Detect Sample and Hold Circuit

The paper presents a high precision peak detect sample and hold (PDSH) circuit for nuclear radiation spectroscopy. A small compensation current source is applied to reduce the measuring error and improve the resolution. For nuclear pulses with the peak value ranging from 0.1 to 1 volts with a frequency about 100 kHz, test results showed that voltage drop is 2.16muV/mus and the voltage error is less than 0.5 mV.