By: Uriel Barron Matan Schlanger Supervisor: Mony Orbach Mid-Semester Review Spring 2014

 Large Neutrino detector at the South Pole  A collaboration of 11 universities worldwide  Detection of short, extremely weak RF pulses over an area of 100km 2

 High Bandwidth (~850 MHz), rare (once every few months) and short (~2 ns) pulses  Strong price sensitivity – 37 stations, high frequency samplers cost thousands of dollars  Power consumption requirements (~2W)– limited power at the South Pole  Sample 4 channels with one board

 Design and simulate a cheap sampler for high frequency short pulses, with low power consumption  Design will include BOM, electronic schematics, layers design and Gerber files

 Using a DRS4 Domino Wave Circuit to quickly save analogously ~2000 sample.  Instead of continuous high-frequency sampling, using regular ADCs  All components are on-shelf and significantly cheaper than high-frequency samplers.

 Bandwidth of at least 850MHz  Gain of about ~5  Power Consumption smaller then 900mW for all 4 channels together  Based on on-shelf components

 We decided to use TI THS4303 amplifier  The amplifier has a constant gain of 10, so with trimmers we can change the actual gain using voltage divider  The amplifier has a BW of 1.4GHz  Each channel’s power consumption is ~220mW

 Using the domino effect to save analog high- frequency signals, and later digitize them slowly  Contains 8 channels, each channel can save up to 1024 samples  Supports cascading of channels  We’ll be using Full Readout mode