HOME ESR EXPERIMENTS LABS etc
E121 E127 E132 E125 E143 laser_cooling_2021 E142 Ê128 E146 E0052 E0018 E0028 E0038 E0075
  Nuclear hyperfine mixing in 229Th89+  Not logged in ELOG logo
Message ID: 101     Entry time: Tue Apr 5 20:16:13 2022
Author: Rodolfo 
Category: Laser 
Subject: Discriminator for HF reference signal 
For the laser trigger we need to generate a few ns NIM-puls from the HF reference signal. Therefore we (Wilfried, Konstantin and me) have changed the constant fraction descriminator (CFD) to generate this kind of pulse.

- We are using now the module N843 from CAEN, see picture below. With this we could now produce ~20 ns long pulse.
- This signal is also used as STOP trigger for the VUPROMs
Attachment 1: CFD_für_HFSignal.jpg  318 kB  Uploaded Tue Apr 5 21:57:03 2022  | Hide | Hide all
CFD_für_HFSignal.jpg
Attachment 2: Disc_HFSignal_05-04-2022.PNG  23 kB  Uploaded Tue Apr 5 21:57:21 2022  | Hide | Hide all
Disc_HFSignal_05-04-2022.PNG
ELOG V3.1.5-fc6679b