Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Notes on building a full ANITA simulation.
Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Outline Event Generator Shower parameterization Pulse Propagation through ice Ice/air interface Propagation through air Antennas Instrument model 1: trigger side Instrument model 2: waveform side
Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Event Generator Earth model Need local topography, geology, air Neutrino cross-sections standard model PQCD (+/- 25%) –NC/CC different levels of agreement. Non standard model cross-sections Tau propagation Other particles…Monopoles…
Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Shower parameterization simple: N max, curvature d 2 N/dx 2 list of sub-showers … tbd
Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Pulse creation Real pulse includes all the propagation issues… Do a spectral analysis, reconstruct at the antenna
Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Propagation through Ice Attenuation (temperature, composition) Refraction Scattering ? bi-refringence
Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Ice/Air interface Surface roughness Multiple lines of site Shadowing Polarization
Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Propagation through air Dispersion Refraction
Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Antennas Angular and spectral, polarization response. Mutual impedence Calibrated instrument Simulate noise
Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Instrument trigger TBD Frequency domain until it hits the discriminator convert to time domain at disc
Anita-Sim David Seckel, ANITA Collab. Mtg. Nov , /2002 Instrument Waveform Digization TBD RF instrument freq -> time domain Characteristics of digitizers… Maintain database of instrument state channel characteristics