Runs acquired in Jan-Feb 2020

Detector bias -50V
Bias applied to one strip only of B-grade silicon W1
Triple alpha source P9
500 samples pre-trigger
8096 total samples

- Internal triggering from CAEN v1730B digitiser
R1,2,3 - Cooknell preamps, positive waveforms
R4 - Skipped
R5,6 - RAL108 preamps, positive waveforms

- External trigger provided from Ortec TFA + CFD + Lecroy Level Adaptor
- 500 sample pre-trigger, but note trigger position in time now resents of dealay between signal and TFA+CFD trigger chain
R7,8 - RAL108 preamp, negative waveforms

- CFD threshold potentiometer cleaned. Threshold likely changed
- Reduced samples to 4096
R9 - RAL108 preamp, negative waveforms

- TFA failed & replaced. New gain settings Fine MAX (12.5x), Coarse 2x
- Samples stil at 4096
- Pre trigger window increased to 1000
R10 - RAL108 preamp, negative waveforms
R11 - RAL108 preamp, negative waveforms with Cs-137 gamma source
R12 - RAL108 preamp, negative waveforms at -25V bias
R13 - RAL108 preamp, negative waveforms at -75V bias  
R14 - RAL108 preamp, negative waveforms with neutron source
R15 - RAL108 preamp, negative waveforms, background run