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AGATA detector characterization : scanning setup at Orsay Concept of the Orsay scanning system

AGATA detector characterization : scanning setup at Orsay Concept of the Orsay scanning system (last Agata week – K. Hauschild) Status and plans A. Lopez-Martens & A Korichi for the Orsay (IPN-CSNSM) Group. PC Linux [NARVAL] + SDLT + 1.3 TB NAS. EM shielded and air conditionned

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AGATA detector characterization : scanning setup at Orsay Concept of the Orsay scanning system

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  1. AGATA detectorcharacterization: scanning setup at Orsay Concept of the Orsay scanning system (last Agata week – K. Hauschild) Status and plans A. Lopez-Martens & A Korichi for the Orsay (IPN-CSNSM) Group

  2. PC Linux [NARVAL] + SDLT + 1.3 TB NAS EM shielded and air conditionned Area & EMC control Experimental hall at the CSNSM Scanning Digital [TNT]/Analogue electronics LN2 Ge segment and anode signals / NaI NaI 500 MBq g Linux Industrial PC XYZ table

  3. Concept : xyz Table + TOHR (Orsay) F e 2r Positionning rods Focal point Digital electronics Tungten sheet Brace d’ d Agata detector : q movment Xy movment Tohr : z movment Coincidences : 6 NaI detectors • 40 triangular–shaped 200 mm thick W-plates • Plate separation : 200 mm • 200 mm diameter holes on a hexagonal lattice • Volume /scan point : 2 x 2 x 2- • 3 mm3 : 3D Scan of the whole detector Intense Source : 15 mCi From simulations, the number of single interaction Compton scatter events at a given position : 400/h @front face and 10/h @the back of the detector

  4. Collimated 137Cs delivered : 477 MBq -> 2 kHz Security trolley Security lock down More security After a heavy safety procedure (A. Lopez-Martens) we are allowed to use the source

  5. G4 simulations have shown that TOHR collimator are too thin (K. Hauschild) Double up the thikness Recalibration of each TOHR module (focal point) Done (J. Robin & F. Le Blanc)

  6. Mechanics ready (P. Pariset) • A conventional XY table, the motorised rotational plate to turn the AGATA detector and the stepping motor for the z-translation of TOHR : delivered • Programming Software for the different movements : done (E. Legay, N. Dosme and X. Grave)

  7. The analog electronics: 3x(16 channels) CADC cards developped and tested VME interface ACQ- CAMAC : under way (D. Linget, E. Legay, S. Leboutelier, X. Grave) VME interface ACQ-CAMC __________________ CAMAC Analogique ___________________ TNT2 + trigger ___________________ HT et BT détecteur ___________________ ATCA AGATA Electronics housing : Spécial temperature Controlled rack

  8. Summary AP1 Infrastructure : ready Analogue electronics (48ch) and DAQ (Narval) ready Digital electronics : 10 TNT2 cards (Gabriela) are under tests at Strasbourg Commmissioning of the set-up with a real Agata detector Possible from April 2006 Orsay set-up : Ready to scan summer 2006

  9. PC-Linux ACQ __________________ PC table xy, Commande moteur __________________ LN2-Auto _ VME interface ACQ-CAMC __________________ CAMAC Analogique ___________________ TNT2 + trigger ___________________ HT et BT détecteur ___________________ ATCA AGATA (plus tard)

  10. Status : future prospects Manque ACQ et électronique analogique TNT2 cards under tests at ires Ready in few weeks Commmissioning of the set-up with a real agata detector April 2006 Ready to scan summer 2006 Liste des gens

  11. more ‘security’ Collimated 137Cs source ‘security’ trolley ‘security’ lock down

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