DAQ Lingo

DAQ-cronyms

Acronyms in DAQ and SBND in general can be scary. Here's a table highlighting some of the main ones I've come across (even if they're trivial, they might not be for people just starting out):

Acronym	Meaning
ADC	Analogue-to-Digital Conversion
CAEN	NOT an acronym - a company
CRT	Cosmic Ray Tagger
DAQ	Data Aquisition
DQM	Data Quality Management
ECL	Electronic Logbook
EVB	Event Builder
FCTB	Field Cage Termination Board
FEB	Front End Board
FHiCL	Fermilab Hierarchical Configuration Language
FTS	File Transfer System
GUI	Graphical User Interface
HV	High Voltage
NTB	Nevis Trigger Board
OM	Online Monitoring
PCIe	Peripheral Component Interconnect Express
PDS	Photon Detection System
PE	Photoelectron
PMT	Photomultiplier Tube
PTB	Penn Trigger Board
SC	Slow Controls
TDC	Time-to-Digital Converter
TPC	Time Projection Chamber
VNC	Virtual Network Computing
WIB	Warm Interface Board
XMIT	Transmitter (board)

Identifying subsystem components in the DAQ

Each part of the detector subsystem has its own fragment ID, which is how we identify it. This is particularly useful when trying to diagnose what may be causing a problem for the DAQ.

These numbers are assigned as a hexadecimal, but while running the Message Viewer, they will be shown in the decimal system. Below you can find the hex-to-decimal conversion for each subsystem and its components:

Subsystem	Hex Fragment IDs	Decimal Fragment IDs
TPC	0x9000 (NTB) 0x9103 - 0x9B12 (TPCs)	36864 (NTB) 37123 - 39698 (TPCs)
PDS	0xA000 - 0xA008 (PMTs) 0xA103 (pmtx03) 0xA100 - 0xA008 (XARAPUCAs)	40960 - 40968 (PMTs) 41219 (pmtx03) 41216 - 41224 (XARAPUCAs)
CRT	0xB0 (Bottom/"flat") 0xB1 (South) 0xB2 (North) 0xB3 (West) 0xB4 (East) 0xB5 (Top low) 0xB6 (Top high)	45056 - 45311 45312 - 45567 45568 - 45823 45824 - 46079 46080 - 46335 46336 - 46591 46592 - 46847
PTB	8	8
SPEC-TDC	0xD73B	55099

Run configuration types

There are a few different run configuration types. Here's what some of them do.

The latest run configurations can be found here.

Prescaled

With the prescaled configurations, this doesn't look at all the beam spills.

Zero bias

In a zero-bias configuration, there are no light conditions.

Off beam

Off-beam configurations are used when the beam is off (no beam at SBND). When we run an off-beam zero-bias configuration, we are taking cosmic data for overlay files (which is combined with MC!).

PE/ADC Conversion

To convert between PE and ADC, you can use the following conversion:

$$1 \space \mathrm{PE} = 12.5 \space \mathrm{ADC}$$