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TY - CONF AU - Mutti, P. AU - Plaz, M. AU - Ruiz-Martinez, E. AU - Van Esch, P. ED - Corvetti, Lou ED - Riches, Kathleen ED - Schaa, Volker RW TI - New Digitisers for Position Sensitive 3He Proportional Counters J2 - Proc. of ICALEPCS2015, Melbourne, Australia, 17-23 October 2015 C1 - Melbourne, Australia T2 - International Conference on Accelerator and Large Experimental Physics Control Systems T3 - 15 LA - english AB - 3He gas-filled detectors are a classical choice for the detection of thermal and cold neutrons. The incident neutrons are captured by the 3He producing a tritium and an hydrogen which are sharing the 765 keV of energy generated in the reaction. The classical geometry of a charge-division neutron detector consists of a cylindrical volume housing a resistive anode. Electrical signals are extracted at both ends of the tube and the information about the interaction point along the tube can be derived from the ratio of the collected charged at both ends. The classical analog approach for the charge readout consists of a shaping amplifier coupled with a peak sensing ADC. The development of a new digital front-end electronics based on 64 channels, 62.5 Msample/s and 12 bit digitisers, is reported on. Excellent results have been obtained in terms of position resolution and signal to noise ratio when adopting a continuous digital filtering and gaussian shaping. PB - JACoW CP - Geneva, Switzerland SP - 893 EP - 896 KW - detector KW - neutron KW - electronics KW - FPGA KW - ion DA - 2015/12 PY - 2015 SN - 978-3-95450-148-9 DO - 10.18429/JACoW-ICALEPCS2015-WEPGF084 UR - http://jacow.org/icalepcs2015/papers/wepgf084.pdf ER -