NUSTAR Calorimeter WG activity report Nustar Management Board, September 14-15 2006.

NUSTAR Calorimeter WG activity report

Nustar Management Board, September 14-15 2006

NUSTAR CALORIMETER Working Group

Coordinator : D. Cortina , J.A. Scarpaci

Created in : February 2005 after the NUSTAR collaboration

Goal: Find synergies between the different calorimeters in NUSTAR (R&D, Dessing phase, but also common front to negociate with providers)

List : 41 members, 21 Institutions , 10 countries,

Meetings

- February 2005 GSI, Darmstadt (Germany)

- June 2005 Valencia (Spain)

- Informal meeting , September 2005, Orsay (France)

- September 2005 Santiago de Compostela (Spain)

- February 2006, IPN Orsay (France)

- September 2006, Krakow ( SPIRAL)

- October 2006, Milano (Italy)

Minutes and information available on:

http:// www usc.es/genp R3B/NUSTAR Calorimeter

http:// la direccion del IPN

STILL NO GENERAL WEB PAGE

Total absorption efficiency

80 % (E=15 MeV lab)

Very large crystals

E sum (Esum)/<Esum> <10%

(same as E/E)

Multiplicity (N)/<N> < 10% Moliere Radius

E/E for 2-3 % Scintillation properties

Detector granularity

E/E for p (up to 300 MeV)Calorimeter for p

5 % Large crystalsDynamic range

Large dynamic range for detecting p,

Inner radius ~ 30 cm ( house Si trackers)

Affordable cost!!!

Updated Technical proposal for R3B cal

Experimental constrains Gammas are emitted with energies up to

Elab

= 3.2 ECM

(for β = 0.82)

✗ To correct for the Lorentz boost it is

mandatory a high granularity.

✗ A huge crystal length is required for full

energy absorption

Due to the boost, gammas are basically emitted in the forward direction.

A large open zone in the backwards region reduces dramatically the crystal bulk needed.

ECM

= 10 MeV(β = 0.82)

H. Alvarez Pol – R3B Gamma Calorimeter NUSTAR Calorimeter WG – Valencia 17/06/05

Simulations of the detector response

Calorimeter models (CAD)

v1.2 v4.0a

v4.0b v4.0c

USC, IPN

GSI, Lund, USC, IPN,IEM,UCM

Crystal properties

!?

Calorimeter models (GEANT4)Detailed simulations

v1.2 v4.0a v4.0b

USC

AGENDA

16:30 Work Status reports· 16:30-16:45 J. Peyre (IPN Orsay) Crystal tests @IPN· 16:45-17:00 I. Duran (USC) Crystal test @ USC· 17:00-17:15 S. Tashenov (GSI) Crystal test @GSI· 17:15-17:30 O. Tengbland (CSIC, Madrid) "Two layer detector" for the p-detection· 17: 30-17:45 Bo Jackobsson ( Lund) Avalanche PD readout. Test possibilities for both proton and gamma beams in Sweden· 17:45-18:00 R. Wolski (Dubna) Radiation damage of PD's and APD's· 18:00-18:15 H. Alvarez (USC) Simulations· 18:15-18: 40 Common discussion on the status reports 18-40 - ….. Other topics- Working group package definition- Prototype module construction- Beam tests, what, where and when? - Time schedule / Technical dessign report/ Deadlines Electronics- DAQ definition- Internal MoU, working coordination - European Money (7 FP)- Decissions and Actions - Next meeting

Conclusions on crystal test and Simulations

CsI(Tl) energy resolution does not depend on the position 0.3% difference going from 4000 to 5000 collected light

Resolution about 7-8% - more R&D with LaCl3 and squared PM

Need to reproduce data with LITRANI for a full simulation

CsI(Tl) +APD (covering the full area) Barrel for R3B prototype

CsI(Tl) + PD could be an option to consider need to be tested

CsI(pure) need to be tested at LN temperature

CsI(Na) +2PM readout reduce the light yield dependence on position interaction is this a realistic option?

BGO have strong non uniformity

one single cristal readout with different PM should be tested

The two layer concept only acceptable in the “expensive” option LaBr+ LaCl or CsI(undopped) but it needs to be tested (forward angles)

The two layer concept needs a realistic simulation

Radiation hardness problem for PD and probably worse for APD’s what one expect after 15cm crystal???

Full simulations(including reconstruction algorithms) are really needed

04/10/2006 Milan

NUSTAR Calorimeter Working Group Meeting

Prototype construction

12 crystals (approx. 1x2x17 cm3)

APDs S8664-10 (Hamamatsu)

mechanical structure IPNO concept

temperature and voltage stabilisation

electronics Saclay digitizers ??

DAQ VME/MBS

full simulation (Hector Alvarez)

Beam tests

04/10/2006 Milan


Beam Tests

ACCULINA p,d,t,alpha

MAX-lab (LUND) 10-230 MeV photons

TSL/ GWC cyclotron (Upssala) up to p 180 MeV, d,t.alpha

GSI

Tandem-Madrid

04/10/2006 Milan


Working Package definition

Work package R3B EXL

Crystal-readout USC, IEM,GSI IPNO,GSI,Lund,

Dubna

General design USC IPNO

Simulations USC, IEM Lund, IPNO

Mechanics IPNO

Electronics

Slow control

Beam tests

04/10/2006 Milan


Electronics and DAQ

04/10/2006 Milan


Organisative issues

Internal MoU ( i.e. DAQ WG)

European Money (FP7)

04/10/2006 Milan


Decisions and Actions for R3B

Crystal and readout tests for barrel till end 2006

Proposal for a barrel prototype February 2007

Prototype construction July 2007

Beam tests from September 2007

Crystal and readout tests for forward end-cup

First results (including simulation) February 2007

Final results and decisions June 2007

Prototype ......

Mechanical design study

Next Working group February

04/10/2006 Milan


Decisions and Actions for EXL

Results CsI(Tl)+Teflon+XP5300B+137Cs

•RS=5,5%±0,2 except for crystal 22x22x220: RS~7%•Global Resolution is quite constant along the Crystal•Variation from 14% to 38% of collected light along the Crystal

3000

3500

4000

4500

5000

5500

6000

6500

7000

0 20 40 60 80 100 120 140 160 180 200

Position (mm) of Gamma source along the Xtal

Co

llec

ted

Lig

ht

(ph

e-)

by

XP

5300

B

Xtal 22x22x22 teflon




TEFLON

6,55%

6,52%

8,18%

6,68%

ResolutionFWHM Collected light for 137Cs peak

VS position of impact

0

1000

2000

3000

4000

5000

6000

7000

8000

0 20 40 60 80 100 120 140 160 180 200

Position (mm) of Gamma source along the Xtal

Co

llec

ted

Lig

ht

(ph

oto

elec

tro

ns)

Xtal 22x22x22 XP5300

Xtal 22x22x220 XP5300

Xtal 44x22x200 XP5300

Xtal 66x22x200 XP5300

Xtal 22x22x22 closed XP1912




XP5300B

XP1912

5,74%5,86%

8,05%

10,33%

6,70%

9,40% 12,28%

VM2000

6,57%

Results for PMT/VM2000+137Cs

Collected light for 137Cs peak VS

position of impact

Resolutions CsI(Tl)+VM2000+APD/PMT+137Cs

5,74%

8,05%

8,23% 9,39%

6,70%

9,40% 10,33%

5,86% 6,57%

12,28%

22x22x22 22x22x220 44x22x200 66x22x200

XP

5300B

XP

1912

AP

D S

8664-1

010

Summary of USC Crystal tests

6.28% 9.87% 8.45% 7.42%

6.31% 15.70% 12.76% 10.71%

5.15 % 9.06% 7.03% 6.07 %

S8664-10 XP3102 XP1901 XP1918

1x1x1cm

1x1x5 cm

1x1x10 cm

Energy resolution for CsI(Tl) with a 137Cs (662 keV) source

R3B/EXL meeting Milan Oct-06

What the Lund/Dubna group wishes to achieve until next annual meeting

• produce two* close-to-final (forward) EGPA clusters

requires CsI(Tl) decided (alternatives?,doping conc?)

from geometry decided (length?, square and rectangular.*)

Milano: readout device decided (APD or PD?)

• put these clusters in correct EXL recoil detector setup (dummy)

requires exact design of ESPA for D-section (foil, thicknesses)

from HV or air (if HV – what wall?)

Milano:

• make complete GEANT4 simulations for these clusters

requires we agree on the input for resolution and efficiency limiting effects

from establish direct cooperation with Orsay group, others?

Milano:

• test the clusters in-beam with both protons and photons

requires from acceptance of beamtime and beamline design

TSL, MAX-lab (preliminarily accepted)

and ACULINNA:

Beam-lines available for proton and gamma tests

ACULINNA: Mass separator at JINR, Dubna [A. M. Rodin et al., Nucl. Instr. Meth. B 204 (2003) 114] p, d, t, α etc

MAX-lab: New tagged photon beam-line from MAX electron synchrotron [J-O Adler et al. Nucl. Instr. Meth. A 388 (1996) 17] 10 – 230 MeV photons

TSL/GWC: Cyclotron at The Svedberg Lab., Uppsala [L-O Andersson et al., TSL Progress report 1987-1991 p. 10] p up to 180 MeV, d, t, α

Name Institution Country

D. Cortina ,I.Durán,H.Alvarez, J.Benlliure, E.Casarejos

Santiago University Spain

O. Tengblad, M.J.G: Borge, M. Turrión

IEM– CSIC Madrid Spain

B. Rubio, J.L. Taín IFIC CSIC-UV Valencia Spain

L. M. Fraile, J.M. Udías Complutense Uni. Madrid Spain

J. Gerl , T. Aumann GSI Darmstadt Germany

O. Kisselev Mainz University Germany

H. Scheit MPI Heidelberg Germany

P. Reiter Cologne University Germany

D. Cullen, S. Freeman Manchester University UK

R.Lemmon CCLRC Daresbury Lab. UK

K. Spohr , M. Labiche Paisley University UK

P. Nolan Liverpool University UK

A. Maj , M. Zieblinski, M. Kmiecik

Krakow University Poland

A.Algora Debreecen Hungary

L. Batist St Petersburg Russia

A. Artukh JINR Dubna Russia

V.Avdeichikov , B. Jacobsonn Lund Sweden

J.A. Scarpaci , Y. Blumenfeld, F. Skaza, J. Pouthas, Zerger, J. Perey

IPN Orsay France

E. Pollacco CEA Saclay France

Y.H. Zhang China

R. Palit, I. Mazumdar TIFR Mumbai India

Large position sensitive LaBr3:Ce detector

A B

a b

A

C

B

D

E = (Ea...ED)

pos(x,y,z) = centroid of light distribution

5 cm

6 cm

J. Gerl (GSI) NUSTAR Calorimeter WG – Valencia

Other concepts

GSI

2004 2005 2006 2007 2008 2009Writing tasks Technical Proposal Technical Design Report Investigate scintillators Cooling of inorganic scintillators Read-out with PIN, APD Response to n,p,… Simulation of 4 array Response Doppler effects neutron/particle discrimination Design and Construction Prototype detector Prototype electronics Series production Installation and Test Installation Source test In-beam test

Time schedule

R3B -calorimeter

Two H8500 Flat panel Photomultiplier tube

MPET-H8500 readout interface

Two scintillating arrays: Array BrilLanCe 380

Full detection area 2”x 2”, 4x4x30 mm3, encapsulated in Al housing, 3mm glass window

Array PreLuDe 420 Full detection area 2”x 2”, 4x4x30 mm3

Spatial resolution for proton detection

absorption energy resolution M. Turrión, O. Tengblad NUSTAR Calorimeter WG – Valencia

Other concepts

IEM

2004 2005 2006 2007 2008 2009Writing tasks Technical Proposal Technical Design Report Investigate scintillators Cooling of inorganic scintillators Read-out with PIN, APD Response to n,p,… Simulation of 4 array Response Doppler effects neutron/particle discrimination Design and Construction Prototype detector Prototype electronics Series production Installation and Test Installation Source test In-beam test

Time schedule

R3B -calorimeter

NUSTAR Calorimeter WG activity report Nustar Management Board, September 14-15 2006.

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