“LKr in the Dry run” G.Lamanna

(CERN)

Mainz collaboration meeting TDAQ WG – 8.9.2011

Introduction

The LKr will be one of the main actors in the spring’s dry runThe dry run will be a good opportunity to consolidate the system and to integrate the readout in the NA62 TDAQThe goal is to have a fully working system for the first run with the beam in autumn

LKr detector status

Low voltage: ~600 channels (transceivers, preamplifiers and regulators) monitored using ELMB with adapter board and Digital I/O based on PLC Siemens S7-300High voltage: New CAEN power supply (compatible with CERN DCS) controlled using DIM (by B.O’Connell)

Calibration

Checkup of the calibration system:Rearrangement of the crateCheck of the system

Possibility to test the new calibration controller implemented on the TALK board

Trigger

• Clock: the clock generator has been moved in the EB, the clock distribution to the CPDs has been checked.

• Trigger: The trigger distribution will be done by the TALK board no needed to support the old TS

SLMCPD

LKr PCs

TALK

PC Farm

TTC L0TP

Choke/error

Readout

CPDCPDCPDCPD

SLM LKr PCs

(216 CPDs)

(52 SLMs)

(4 CPDs 1 SLM)

(4 SLMs 1 PC)

(13 PCs…Actually 16)

(To the switch)

TALK(To the switch)

Timestamps

TTC

CPD FastBus power supply refurbishment by WIENER: prototype under evaluation (10+10 final production)All the SLMs and CPDs are mounted. In the next months the whole system will be tested using calibration

The SPS signals (used for the readout by the LKr PCs) are detected using the MOL board with a TTCrx mezzanine card (D.Gigi). Small problems with the PCB

building (it’s a 10 Gb PCB), the prototype will be ready soon. We have already, as spare

solution, the FED card for the same purpose

The Readout farm The readout farm is composed by 12 SuperMicro SC808T-980 + 4 Elonex power servers: each PC can handle 4 SLM output (the Elonex 2) LKr PCs apply the zero suppression and format the data for the transmission to the EB farmThe readout software is ready (Roberto P., Hank B., Riccardo F.). The merging of the fragments and the timestamp matching will be done, probably, in the farm upstairs The data are bring upstairs using 2x10 Gb optical fibers after a 24x1Gb switch

…16 LKr PCsTALK (timestamps)Services

SWITCH

2x10 Gb

TALK as L0TP

The base solution for the L0TP for the dry run is the use of a “special” PCThe TALK board will be ready to be a spare solution4 (or 5) ethernet inputs (more using a switch), 4 Lemo inputs, Choke and error inputs. The firmware design is already started and will be completed in the next months

MUV3

CHOD

RICH

TALK

TEL62

LTU TTCex

TTC