the ad at lnl in view of the experimental campaign. · introduction support to the ad commissioning...

Introduction Support to the AD commissioning Simulation Conclusion Appendix

The AD at LNL in view of the experimentalcampaign.

D. Mengoni

University of the West of Scotland, Paisley - U.K.

UK Agata Meeting, LiverpoolNov the 24th, 2009


Outline

1 IntroductionDAQ & data flow

2 Support to the AD commissioningWeekX Commissioning

3 SimulationRDDS lifetime measurements

4 Conclusion


First In-beam commssioningacq rate ≈ 1 kHz/crys


DAQTopology and performances

1Gb/s 4Gb/s

Carrier Carrier Carrier

15 MB/s

15%

50%

100% 100% 100%

3%

3%

100%

35%

6−7 kHz

2 kHz

SUN disk

1 kHz

3 kHz

8 kHz 32 kHz

1.5 kHz

MERGER

Anc Filt

Anc Prod

AGAVA

ANCILLARIES ATCX

DSSD, TRACE,DANTE,PRISMA, etc

prod

prep

psa


WEEK12FE reaction: 30S(70MeV)+12Ca

Main goal of the meas.

position resolution from PSA

40K


WEEK27 (+WEEK22)Coulex reaction: 56Fe(220MeV)+197Au


digital trigger processor + ancillary (DANTE)


WEEK43FE reaction: 32S(130MeV)+110Pd


AGAVA + 2ATC + high mult events

0

2000

4000

6000

8000

10000

12000

300 400 500 600 700 800 900

346

544

685

356

511

552

656

775

138Sm

0

50

900 1000 1100

915

1104


WEEK43Timing

digital trigger:coinc between two partitions

Sync AGAVA-AGATA

0

2000

4000

6000

5100 5200

Counts

Channels

timestamp difference

50 ns

Timing after track

0

50000

100000

150000

200000

250000

650 700 750 800 850 900 950 1000 1050

Channels

TC

400 ns

0

50000

100000

150000

200000

Counts TS

80 ns

0

20000

40000

60000

TT

18 ns


WEEK46MNT reaction: 58Ni(235MeV)+96Zr


AGATA-PRISMA coupling

0

20000

40000

60000

80000

100000

120000

140000

3000 3050 3100 3150 3200 3250

Counts

Channels

50 ns0 500 1000 1500 2000 2500 3000 3500 40000

500

1000

1500

2000

2500

3000

3500

4000

RawTimeX-RawTimeY_Dante0

Entries 685007Mean x 1999Mean y 2420RMS x 711.7RMS y 1004Integral 6.85e+05 0 0 0 0 685007 0 0 0 0


Entries 685007Mean x 1999Mean y 2420RMS x 711.7RMS y 1004Integral 6.85e+05 0 0 0 0 685007 0 0 0 0



SImulation frameworkRealistic physics

0

20

40

60

80

100

120

140

900 1000 1100 1200

Cou

nts

Energy (keV)

D = 1209 µm50Ca2+ --> 0+

generatorC code

Tracking

PSA


Working principle

J.J. Valiente, D. Mengoni et al., LNL An.Rep. 2007.


SimulationThe 50Ca bench

0

80

160

240

320

950 1000 1050 1100

Energy (keV)

D = 300 µm

0

40

80

120

160

Cou

nts D = 1209 µm

Before Degrader After Degrader

simexp

0

20

40

D = 2223 µm50Ca

2+ 0+ EVENT GENERATOR

CLARA

PRISMA

D. Mengoni et al, EPJA in press.


Simulationsrealistic CLARA(..AGATA)+PRISMA simulation


Summary and conclusions

Actively involved in the system set-up, particularly in DAQ;

ON-LINE analisys at a rate of & 5 kHz/crys, with two ATCs;

AGAVA coupling;

Simulation tool for RDDS measurement (EPJA09 in press,PRC under submission).

TO DO/ ON GOING

Presort and sort of data: improv. of the algorithms and sortcode.

last (two?) commissioning test + physics campaign(displacement of the ATC3);

Simulations in view of the next LNL PAC and to reproducecommissioning results.


LibrariesWhat are they really?

C/C++ code

The BASE CLASS usually binds with the ADF:I/O methods, configuration, initialization

The DERIVED CLASS usually overloads the processingmethod where the job is done

(symbols for Narval interface)

ORGANIZATION INSIDE NARVAL

All the C/C++ code is in a dedicated machine where all thelibraries have been ported and build. Afterwards they arecopied to a common nfs directory, loaded and configured insideNARVAL.


Mezzanine producerdata reading from disk/carrier

Data import inside the DAQ

Input:Disk/Carrier reading and mezzanine decoding

Output: event Crystal Frame conversion

Data compliant with ADF 2.0: 12.648 kB/ev

2000 4000 6000 8000 100000

100

200

300

400

500

600

700

Return


PSA preprocessingADF crystalFrame

Energy calibration and integral cross talk correction

Time normalization, baseline and offset removal,alignement.

2000 4000 6000 8000 10000 12000 140000

100

200

300

400

500

11500 12000 12500 13000 135000

100

200

300

400

500

Return


PSAADF psaFrame

Simple grid search: JASS and MGS basis (2 mm, 5 ns).

Comparison: different exp point in the same segment.

PSAxy_Proje

-50 -40 -30 -20 -10 0 10 20 30 40 50-50

-40

-30

-20

-10

0

10

20

30

40

50

210

PSAxy_Proje

-50 -40 -30 -20 -10 0 10 20 30 40 50-50

-40

-30

-20

-10

0

10

20

30

40

50

210

_Gdir_PSAexp_trace

Entries 3700Mean 2339RMS 1383

0 500 1000 1500 2000 2500 3000 3500

0

1000

2000

3000

4000

5000

6000

_Gdir_PSAexp_trace

Entries 3700Mean 2339RMS 1383

PSAexp_trace PSAfit_traceEntries 3700Mean 2342RMS 1391

PSAfit_traceEntries 3700Mean 2355RMS 1379

_Gdir_PSAexp_trace

Entries 3700Mean 1551RMS 33.75

1350 1400 1450 1500 1550 1600 1650 1700 1750

0

500

1000

1500

2000

2500

3000

3500

_Gdir_PSAexp_trace

Entries 3700Mean 1551RMS 33.75

PSAexp_trace PSAfit_traceEntries 3700Mean 2342RMS 1391

PSAfit_traceEntries 3700Mean 2355RMS 1379

MGS

JASS

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