Plans for 05-06

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Plans for 05-06

• Baseline goals
• Verify structural integrity of basic RICE-II
  design
• Biggest concern OF ability to survive re-freeze
• Will have to rely on previous AMANDA experience
  in assessing cladding requirements.
• Verify 1 ns timing resolution
• Ping RICE-II receivers with RICE-I Tx and vertex
  in conjunction with current RICE array
• Verify 1 ns transient waveform response
• Estimate and collect data on noise for an Rx on
  surface for possible surface co-deployment
• Verify ray tracing effects through firn (impacts
  decision to use surface antennas, etc.)
• Set groundwork for full-scale 06-07 deployment.

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2005-06 plan, cont.

• With existing, or to-be-drilled dry holes,
  measure noise _at_surface examine surface waves
  beyond TIR.
• Re-do RF reflection off bed investigate coupling
  to snow, position-dependence of R(bottom), etc.
• If access into IceCube holes possible
• Determine robustness of OF to freeze-in
• Drop 300 m length of well-clad OF into IceCube
  hole (no attached electronics). OTDR during
  freeze-in evaluate loss of signal
• Radioglaciology/coupling of horn to firn
• Transmission thru firn Drop aluminum reflector,
  on rope, into IC hole to depth of 250 m. Ping
  with RF transmitter look at reflected signal.
• Submitting proposal to NSF for additional hole
  drilling

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Comment on drilling/geometry

• Co-deployment in IC holes?1/3 Veff at high end
  relative to ideal geometry, but lower threshold
  relative to sparse array
• Simulations tuning on ESS events
• dzdQc at Rlatten (Rdistance to neutrino
  vertex)
• 100-120 m vertical spacing b/w Rx
• dr latten/2
• 500 m - 1 km horizontal spacing b/w Rx

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ICP geometry vs. 1 km-spacing
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ICP vs. 1km-hole spacing Veff
3x Veff at high end, but fluxE-3
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General comment on schedule

• As attention increasingly focuses on GZK end of
  neutrino spectrum, increasing likelihood that
  GZK-expt will be built
• ANITA, SalSA, OWL, etc (Rolf talk)
• Aside have run salt vs. ice sims (ICRC05)
• Salt signal1/3 ice-signal, but higher density
  compensates in overall event rate
• ANTARESacoustic IceCubeacoustic/radio are
  unique opportunities for a detector with
  sensitivity in range 102 GeV?1011 GeV.

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Goals of NSF proposal

• 3 dry holes, to depth of 300m _at_Pole, at r0,
  r2/3 km, r2 km
• Transparency measurements, horizontally, as f(z)
• Birefringence measurements require lt1ns timing at
  receiver.
• Utility for acoustic measurements?