Coupling other detectors with AGATA

• The AGATA Front-End processing Electronics & DAQ

• The AGATA Trigger and Synchronization (GTS)

• Coupling complementary detectors to AGATA

6660 high-resolution digital electronics channels

High throughput DAQ

Pulse Shape Analysis ���� position sensitive operation mode

γγγγ-ray tracking algorithms to achieve maximum efficiency

Coupling to complementary detectors for added selectivity

180 hexagonal crystals 3 shapes60 triple-clusters all equal

Inner radius (Ge) 23.5 cmAmount of germanium 362 kgSolid angle coverage 82 %36-fold segmentation 6480 segmentsSingles rate ~50 kHz

Efficiency: 43% (Mγ=1) 28% (M

γ=30)

Peak/Total: 58% (Mγ=1) 49% (M

γ=30)

AGATA R&DAGATA R&D(Advanced GAmma Tracking Array)

Structure of Electronics and DAQ

TRACKINGControl,Storage…

EVENT BUILDER

PSA FARM

Core +36 seg.

GL Trigger

Clock100 MHzT-Stamp

Other detectors

Fast 1st Level Trigger

interface to GTS, merge time-stamped data into event builder, prompt local trigger from digitisers

DetectorLevel

Other Detectors

Diff. Fast-reset-TOT 75.5db SNR 12.2 ENOB

GTS

DIGITIZERPREAMPL.

ATCA Carrier

GTS

Global LevelDAQ-NARVAL

RUN- & SLOW-Control

HIGH THROUGHTPUT PRE-PROCESSING

CARRIER / MEZZANINES

Other detectors

INFN-MI/GANIL/KÖLN IPHC/Liverpool/ STFC

IPNO/CSNSM/INFN-Pd

IPNO/CSNSM/LNL/GANIL/IFJ-PAN

INFN-Pd

Digital preamplifier concept

200MB/s/ segment

100MB/s/detector

AGATA and Other Detectors

Other

VME

GTS

supervisorEvent Builder

PSA

Pre-processing

Other

Readout

Digitizer

Tracking

Online analysis

Storage

GTS

local

Other

Analogue

prompt trigger

REQ

VAL

REQ

VAL

Ancillary Merge Pre-processing

AGAVA GTS

interface

Trigger

AGAVA

IFJ-PAN

The first real interaction of AGATA with other detectors is at the level of the GTS

Possibility to use the Digitizer multiplicity signal to build the ancillary detector trigger

The AGATA Trigger System

•Tree Structure Based on the GTS Mezzanines

•Trigger Logic Build in the Global Trigger Processor

•Possibility to Define Partitions for Different

Detectors or Groups of Detectors

•The logic:

•Multiplicity conditions within each partition•Prompt or Delay Logical Conditions Involving

more partitions

M. Bellato, L. Berti, J. Chavas, INFN-Pd and LNL

T 90 I 101 T 94 I 102 T 100I 105I 110I 107

I 190 I 194 I 200

Online Sequential Batcher Sort

The GTS tree collects all time-stamped trigger request in a single list

M. Bellato, L. Berti, J. Chavas, INFN-Pd and LNL

Multiplicity Processor

T90

200ns

T12

0

T13

5

T15

0

>= 3

T50

0

1

123 Validation4

1

321

M. Bellato, L. Berti, J. Chavas, INFN-Pd and LNL

1. Ordering the

Trigger requests

2. Defining the

events in the

coincidence

Window

3. Output of events

in coincidence

Window with

event number

Partitions Coincidence

• Prompt and delayed

• Case study:– M(Ge) >= N and M(Ancillary) >= K before/after deltaT

M. Bellato, L. Berti, J. Chavas, INFN-Pd and LNL

Open Issues

– Multiple multiplicity conditions on the same partions:• (M(Ge) >= N or M(Ge) >= R) and M(Other) >= K

before/after DT– Event number generation:

• Global ? • per partition ?

– Validation broadcast

M. Bellato, L. Berti, J. Chavas, INFN-Pd and LNL

This Trigger mode Is very

relevant for us: to be

implemented in the final Global Trigger processor

AGAVA VME card

GTS transceiverFPGA VIRTEX 2

VME backplane connector

Optolink to GTSEthernet

IFJIFJ--PANPAN,, KrakKrakóów & INFNw & INFN--MilanoMilano

Agava Interface Front Panel contains:

•Inputs:Trigger request (“external”) (NIM standard)Back pressure (NIM standard)

•Outputs:Busy (NIM standard)Local Trigger (NIM standard)Rejection Trigger (NIM standard)Validation Trigger (NIM standard)Timeout (NIM standard)Inspection_1 (NIM standard)Inspection_2 (NIM standard)Inspection_3 (NIM standard)Inspection_4 (NIM standard)Clock 100 MHz (LVDS)

Metronome and Shark link connectors Ethernet and Optical Fiber Clock Access to the GTS Mezzanine card.

GTS Trigger Cycle

“CLASSIC” AGAVA TRIGGER MODES

FORESSEN TDR MODE USING METRONOME AND SHARK LINK CONNECTION

AGATA-Demonstrator PRISMA DAQ cycle

(PRELIMINARY)

Coupling Complementary Detectors Trough AGAVA

•AGAVA is a Complete Interface Towards the AGATA Global Trigger and Synchronization System•Provides the Trigger Request – Validation Cycle (with GTS Trigger Latency)

•Provides de Backpresure and Busy signals•Provides the Time-Stamp and Event-Number•Connections lines for synchronization with TDR DAQs

Note:•Presently GTS concept does not include “Multiplicity”information from a single node or any other “Qualifying” information. No information except the Topological (Node & Partition) and Time is delivered to the Global Trigger Processing System.