GANIL Meeting November 29th, 2005

1) Discussion of ACTAR Yellow book (30 mn)

2)Simulations : Lola, Hector, Roy, Beatriz (2 h)

3)Tests with MAYA-ITO: Fanny, Laurent (30mn)

4)Tests with Bordeaux TPC: Bertram (30 mn)

5)Collaboration ACTAR-TACTIC: Roy, Alison, Patricia (30 mn)

6)Electronics, tests of existing ASICs: Roy, Lolly (1 h)

7) Summary of EURONS Meeting, Preparation of first Annual report: Fanny, Patricia (30mn)

8) Cost statement Active Target GSI : Peter, Patricia (15 mn)

9) Next meeting: When? Where? (15 mn)

Summary of EURONS Meeting

Annual report due by December 12th

Publications: do not forget to acknowledge EURONS supportSupported through EURONS (European Commission contract506065)Publications should be sent to activity coordinator, and linkedon the activity web page

Web page

Next meeting April 6-7 2006, Mainz

Summary of EURONS Meeting

Participant No.

40 29 28 40 41 24 1 Sum

Participant short name

GANIL

IN2P3

(CENBG

Bordeaux)

CEA/DSM

CCLRC

U-

Liverpool

USDC

GSI

U-Birmingham*

INP Cracow*

U. Mainz*

Personnel/PM EU PI EU PI EU PI EU PI EU PI EU PI EU PI EU PI 36 months 22 24 0 15 0 15 4.8 4.8 12 30 12.5 24 9.5 14 60.8 126.8

Present 0 1 0 1 0 0 0 2 0 2 1 1 0 0 1 7 18 months 12 12 0 8 0 7 2.8 2.8 6 15 9.5 21 4 10 34.3 75.8

Personnel/k€ 36 months 99 0 0 54 54 56.25 42.75 306 Present 16.713 0 0 0 0 4 0 20.713 18 months 54 0 0 31.5 27 42.75 18 173.25 Other/k€

36 months 10.0 5.1 5.1 5.1 10.1 5.1 5.1 45.6 present 1.976 0.2 0 0.8 0 0.65 ? 3.626

18 months 6 3 3 3 6 3 3 27

Sum/k€ 36 months 109 5.1 5.1 59.1 64.1 61.35 47.85 351.6

present 18.689 0.2 0 0.8 0 4.65 ? 24.339 18 months 60 3 3 34.5 33 45.75 21 200.25

Milestonesi: Short title Datedueii

Dateaccompl.

Remark

M-J01-1.1.1 Collaboration meeting to initiate the projectDefine in detail the execution plan for the first 18monthsForm working groups focusing on R&D for eachtask

28/01/05 28/01/05

M-J01-1.1.2 White paper 6/05M-J01-1.1.3 Discussion of the white paper (6-7 June 2005 @

CENBG Bordeaux)6-7/6/05

M-J01-1.2.1

Preliminary description of detector geometry andresponse

7/06

M-J01-1.2.2 Final description of detector and geometry response 12/07M-J01-2.1.1

Detailed work program 9/05

M-J01-2.1.2

Installation of test benches 12/05

M-J01-2.1.3

Final description for detection/target gas 12/07

M-J01-2.2.1

Detailed work program 9/05

M-J01-2.2.2

Description of read-out chamber 12/07

M-J01-2.2.3

Description of magnetic field options 12/07

M-J01-3.1 Evaluation of existing electronics 12/05M-J01-3.2 Establish specification of front end and readout

electronics12/07

M-J01-4.1 Description of tracking procedure 12/07

i For every subtask there must be one milestone (there might be more than one if necessary)ii Month at the end of which the deliverable will be available. Month 1 = January 2005. All delivery dates arerelative to this start of the project.

ACTAR Milestones

Deliverablesi Short title LeadContractor

Datedue

Datedelivered

TypeiiDissemina

tionleveliii

Remark

D-J01-1.1 Report on task T-J01-1 CENBG/USDC

12/07 R/PU

D-J01-2.1 Report on task T-J01-2 GANIL/CCLRC

12/07 R/PU

D-J01-3.1 Report on task T-J01-3 DAPNIA 12/07 R/PUD-J01-4.1 Report on task T-J01-4 Not yet

defined12/07 R/PU

i For every task there must be one deliverable (there might be more than one ifnecessary).ii Please indicate type of the deliverable using the following code:

R = ReportP = Prototype

D = DemonstratorO = Other

iii Please indicate dissemination level using the following code:PU = Public

PP = Restricted to other activity participants (including Commission Services)RE = Restricted to a group specified by the consortium (including Commission Services)

CO = Confidential, access only for members of the consortium (including CommissionServices)

Deliverables

R3B cost statement

Detector cell/Mechanics 30 kEuros

Cables/Crates/data acquisition 200 kEuros

New ASIC development 150 kEuros

Ancillary detector (Si+CsI telescope) 725 kEuros

Solenoid 750-1500 kEuros, to be studied

N.B. MAYA:Detector+Tank: 25 kEurosElectronics/cables: 80 kEurosAcquisition (crates, CRAMS): 40 kEurosSi detectors (3 rows of 5, 5*5 cm2):50 kEurosCsI detectors: 55 kEuros (+25 kEuros 2006)

Total : 275 kEurosPlanar Ge detectors: 5*5*2 cm3 segmented in 25 = 70 k Euros after negociation !!!!

Simulations Use of FEMLAB at Liverpool?TRIUMF/TACTIC: Development of advanced tools by G. Ruprecht. Event generator + GEANT4: geometry+ physics processes + Monte Carlo + Femlab/Garfield

In beam tests at Saclay and Bordeaux: direct light ion beams. When?

Tests of different readout systems: wires (GANIL), Gems (Bordeaux), Micromegas (Saclay)

Electronics/TRIUMF: FADC 50 Mhz 12 bits ready to be tested.Database open by Pierre Andre Amaudruz to collect ASIC’s spec’s: open-card.orgFund request made by TRIUMF to build GEMS and develop ASICs

Ancillary detectors: wall of Si (Lolly)??Magnetic field: Herve has officially asked to transfer SOLENO at GANIL (2 superconductingCoils 3T large solid angle)

Questions/Information

Task 2-1 and 2-2: Detection gas/ Readout chamber

Tests of different readout systems: wires (GANIL), Gems(Bordeaux), Micromegas (Saclay)

– for wires: test of different configurationse.g. alternance of amplification wire and mass wire-for Gems: induction/granularity-for Micromegas?

Definition of quality criteria-energy resolution (total charge)-range resolution-position resolution (–> angular resolution and vertex)

Task 2-2: Readout chamber

Gases study:Determine E/x curve, TRIM calculation : factor 6 between the E/x at the Bragg peak and at the low ionization part of the curve (10 MeV proton in 1 atm C4H10). MAYA : factor ≈ 2. This is coming from the detector response (induced charge).But for the GEM the response will be different (direct charge collection) and this point is critical for the electronics specification, as the dynamics of the preamplifiers.

Localization:GEM readout is mainly based on charge collection Studies done by Carleton University : difficult and not efficient to use the induced signalon the pads in the vicinity). Charge may be collected on a single pad.Same algorithm as for MAYA cannot be used.3 solutions:- Decrease the size of the pixels - Spread the charge on several pads, ex: Carlton Univ.- Combination of both charge dispersion and small pixels.

Task 2-2: Readout chamber

8Li(,n)11B7Be(p,p)

TPC De Geronimo IEEE 51 (2004)

≈ 8000 channelsPads= 24 concentric circles 5mm radial pitch, 2mm angular pitch (zigzag)

LEGS experimentDetection of pions

BoNuS at CEBAF

BONUS

BONUS