1. CBM Meeting @ Jammu University Feb. 12-16, 2008 by Arun Prakash CBM Activities @ Banaras Hindu University Arun Prakash DoP, BHU (For Banaras Group) Out line: Present &  Present &  Future

2. CBM Meeting @ Jammu University Feb. 12-16, 2008 by Arun Prakash Software Present: Software  CBM_Root simulation software installed and working  Ready to start detector simulation  Two graduate students are working

3. CBM Meeting @ Jammu University Feb. 12-16, 2008 by Arun Prakash Hardware Present: Hardware  Part of MuCh (Muon Chamber)  Developing GEM (Gas Electron Multiplier) Detector R & D Lab  Order placed for necessary equipments  Procuring lab accessories  Mean while with the help of other lab started studying ageing effect of GEM

4. CBM Meeting @ Jammu University Feb. 12-16, 2008 by Arun Prakash Photon ageing Accumulated charge (uC/mm 2 ) Wavelength [nm] Q.E [%] B.K. Singh et al., NIM A 581 (2007) 651

5. CBM Meeting @ Jammu University Feb. 12-16, 2008 by Arun Prakash Surface morphology (AFM Technique) Before Photon ageing After 5 days of photon ageing B.K. Singh et al., NIM A 581 (2007) 651

6. CBM Meeting @ Jammu University Feb. 12-16, 2008 by Arun Prakash PEEM & AFM images of aged CsI B.K. Singh et al., NIM A 581 (2007) 651 40 um

7. CBM Meeting @ Jammu University Feb. 12-16, 2008 by Arun Prakash drilling Cu etching. ECONOMIC & ROBUST! Manufactured by standard PCB techniques of precise drilling in G-10 (+ other materials) and Cu etching. ECONOMIC & ROBUST! 0.1mm rim: prevents discharges  high gains! 0.1mm Cu G-10 Hole diameter d=0.3 - 1 mm Distance between holes a=0.7- 7 mm Plate thickness t=0.4 - 3 mm THGEM Standard GEM 1mm 10 5 gain in single-TGEM Chechik et al. NIM A535 (2004) 303 Shalem et al. NIM A558 (2006) 475 F. Sauli (CERN) 10 3 gain in single-GEM Breskin/weizmann MICROPATTERN DETECTORS

8. CBM Meeting @ Jammu University Feb. 12-16, 2008 by Arun Prakash Future:- Software Very soon we will start simulation study of absorbing materials in MuCHVery soon we will start simulation study of absorbing materials in MuCH Plan for other detector and physics simulationsPlan for other detector and physics simulations

9. CBM Meeting @ Jammu University Feb. 12-16, 2008 by Arun Prakash Future:- Hardware We will study:-  Ageing effects  R&D for TH-GEM

10. CBM Meeting @ Jammu University Feb. 12-16, 2008 by Arun Prakash Conclusion:- Activities started @ BHU Soon full fledge activity will start for CBM