1. June 19, 2009 Simulation of Askaryan Detectors and Events (SADE) David Seckel, Pat Stengel, Shahid Hussain D. Seckel, Univ. of Delaware

2. SADE (UMD June 19 2009 Seckel) Topics Goals for simulation development Structure Physics simulation Detector simulation Physics methods Examples What Next?

3. SADE (UMD June 19 2009 Seckel) Goals Provide tool for common use Configurable Quality Physics Simple/sophisticated detector models Export results

4. SADE (UMD June 19 2009 Seckel) Structure Configuration –Physics methods –Detector tree Event loop –Physics: event tree …. storage, execution –Detection: detector response tree –Event logging Report results –Text, binary, root

5. SADE (UMD June 19 2009 Seckel) Physics simulation Event generator RFpulses –Shower –Geometry (ray tracing, multiple solutions) –RF packet at launch (AVZ) –Propagation (attenuation, focusing) –RF packet at antenna Complex spectrum (t, x, n, e, f(w)) Multiple rays Multiple sources (sub events)

6. SADE (UMD June 19 2009 Seckel) Event tree Links to RF nodes get placed on the detector tree.

7. SADE (UMD June 19 2009 Seckel) Physics: Attenuation

8. SADE (UMD June 19 2009 Seckel) Detector simulation Combine RF packets –Time domain –Frequency domain Analog –Antenna –Frontend –L0: Discriminator Digital –Trigger logic –Global trigger

9. SADE (UMD June 19 2009 Seckel) Examples: a 121 rx 10km array @200 Configuration Files Reports 10000 events in 5000 seconds. (dominated by ray tracing)

10. SADE (UMD June 19 2009 Seckel) Gratuitous pictures (1) 10kmx10km shallow 10kmx10km deep

11. SADE (UMD June 19 2009 Seckel) Gratuitous pictures (2) 50 v 200 m depth … {z,nz} = {-2.2419,-0.008808}

12. SADE (UMD June 19 2009 Seckel) What next ? Design studies –Array spacing and depth –Trigger strategies –Cluster vs sparse –SATRA Physics studies –Test, n, birefringence –AVZ & waveform shape –Sophisticated events (e.g. AS cores) –Acoustic

13. SADE (UMD June 19 2009 Seckel) Summary Sade is working with standard components, capable of design studies for array dimensions – “out of the box” – (with bugs?) Simple physics modifications possible, work with Pat Hybrid simulation? Need acoustic source model, propagation, detector elements. ftp://ftp.bartol.udel.edu/anita/SADE/