Main Page

These are the wiki pages for the Digital and Analog Gammasphere Data Acquisition systems (GS DAQs). Procedures for running the DAQs and the data format will be documented here, as well as details of the hardware and processes of Gammasphere.

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

Contact mailto:[email protected] for comments on, and write access to, these wiki pages.

Understanding Gammasphere Interactively

• Interactive Image Map

• Gammasphere

• DAQ system

Digital Gammasphere Upgrade Project

• Digital Gammasphere Upgrade Project

• User Guides for Experiments

• Advanced User Guides

• Expert Documentation

Original Content prior to the ''Gammasphere Upgrade Project''

The intro section contains an interactive block diagram of the DGS system prior to the 2021 Upgrade Project.

• Intro

• Analog Gammasphere

• List of experimental runs/analysis

• Typical DGS run procedures

• Analysis codes

• Some problems and their solutions

• Beginner Guide to Digitizer Firmware

• Computers and networks

• Receivers/GEBMerge/GEBsort

• Raspberry Pi camera use

• Handeling removable disks under ESATA

• Data formats

• Triggers and digitizers

• Digitizer Tester

• The DGS/DFMA EPICS Implementation

• Firmware documentation

• Tim Madden software documentation

• JohnSandbox

Hardware

This section outlines the hardware of Gammasphere including detectors and signal processing electronics. There is an interactive picture that is linked to detailed explanations of each detector after the 2021 Upgrade Project. It also contains details of the Liquid Nitrogen (LN) fill system.

• LN system

Digitizer Hardware Features

• 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.

Support Devices

• Network Accessible Power Control Units of DGS

• MyRIAD_User_Manaual
• MyRIAD_Abridged_User_Notes

• Attempts at Inventory
• CrateAndBoardMapping

On-Site Experts Only

• Building the Entire System

• Linking Systems Together

• Updating Firmware in Digitizers and Triggers

• IOC Code Design

Contact List

Mike Carpenter, mailto:[email protected]

John Anderson, mailto:[email protected]

Michael Oberling, mailto:[email protected]

Torben Lauritsen, mailto:[email protected]

Darek Seweryniak, mailto:[email protected]

Pat Copp, mailto:[email protected]

Amel Korichi, mailto:[email protected]

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