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These are the wiki pages for the Digital and the analog Gammasphere Data Acquisition systems (GS DAQs). Procedures for running the DAQs and the data format will be documented here.

The GS DAQ serves the Gammasphere detector array (, located at the ATLAS accelerator (, home of the CAlifornium Rare Isotope Breeder Upgrade (CARIBU

Contact for comments on, and write access to, these wiki pages

Digital Gammasphere

o intro

o typical DGS run procedures

o receivers/GEBMerge/GEBsort

o computers and networks

o Raspberry Pi camera use

o handeling removable disks under ESATA

o triggers and digitizers

o Digitizer Tester

o The DGS/DFMA EPICS Implementation

o data formats

o analysis codes

o list of experimental runs/analysis

o some problems and their solutions

o hint and kinks

o firmware documentation

o Tim Madden software documentation

Analog Gammasphere

o Analog Gammasphere

o LN system

o JohnSandbox

Experts Only

o Building the entire system

o Linking Systems Together

o Updating Firmware in Digitizers and Triggers

o IOC Code Design


Digitizer hardware features you probably don't know about

  • The digitizer has a DAC output.
  • The digitizer has a buffer amplifier that drives a copy of the analog signal going into channel 9 to outputs on the front panel. This is a simple analog buffer, no shaping, sampling or anything else.

contact list

Mike Carpenter,

John Anderson,

Michael Oberling,

Torben Lauritsen,

Darek Seweryniak,

Pat Copp,

Amel Korichi,

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