Fall 2002 Run Plan, as of 24 September 2002:

I. Run Goals:

1. Measurements of rho and delta to better than now known
   a) with normal muons
   b) with zero polarization beam
2. Understand systematics to <(<) 10^{-3}


II. Effects to study:

To assess systematic uncertainties, variations of the following
will be made, one at a time, from a "standard best" situation,
which has yet to be firmly defined.

1. Stopping location
2. Beam rate
3. Deltas (done - until we learn what we can from existing data)
4. Chamber efficiencies
5. Spectrometer B field changes
6. Muon beam variation
7. System reproducibility (i.e., do we get the same answer for
   what should be the same measurement, on different attempts)


III. Assumptions:

Plan on about 18,000,000 useful events/day after cuts and in
fiducial volume (should be conservative) at 2 kHz.  This is
somewhat smaller than previous estimates to account for the
apparent breadth of the muon stopping distribution.  18M useful
events is approximately what is projected to reach 10^{-3}
statistical precision for rho. Therefore, to have a chance to see
systematic effects at this level, we need something like twice
this amount.

==> Use 2 days at 2 kHz for each data set to target
    statistics below 10^{-3}.


IV. Run Plan: (Grand total 35 days plus zero polarization runs)

1. If possible, as cyclotron rate ramps up (if it is with full
   duty cycle), take several runs at lower muon rates, but with
   jaws open, to test rate dependence of data quality.

2. Start up at full proton current (2 days max): using pions and
   positrons
   a) establish system operation
   b) check alignment and efficiencies
      - Includes DC efficiency study.
      - Includes full PC High Voltage scan
        - 1600V - 2200V, in 50V steps.

3. Using normal surface muon beam (21 days total)
   to establish nominal running conditions
   a) set stopping location to target center (2 days total)
   b) measurements for stopping location (7 days total)
      - 1 run stopping preferentially near front of target - 2 days
      - 1 run stopping preferentially near back - 2 days
      - 1 run centered - 2 days
      - 12 hour run with stopping well upstream
      - 12 hour run with stopping as far downstream as possible
      The latter two studies represent a new test of the muon range
      straggling predicted by GEANT.
   c) rate studies (<~8 days total)
      - 1 kHz for 4 days
      - 4 kHz for less than 2 days
      - 2 kHz at comparable conditions for 2 days
      Note: The 2 kHz run will nominally be under the same conditions
      as the target centered run above. A comparison will test the
      system reproducibility.
   d) muon beam position studies (4 days total)
      - B2 raised (by 10 G?) for 2 days
      - B2 lowered (by 10 G?) for 2 days

4. Pion and positron checks for alignment and efficiencies (1 day
   total)

5. Using normal surface muon beam, continuation of 3. (<~5 days
   total)
   a) chamber efficiencies - 1800 V and 1850 V for 2 days each
      - including short data sets with 50 MeV/c positrons and/or
        120 MeV/c pions to provide cross-check data at these
        lower voltages. This should probably be done in between
        the two data sets.

6. Pion and positron checks for alignment and efficiencies (1 day
   total); repeat of 4.

7. Zero polarization muons (many days - need rate to know what
   works!!)
       - need data set comparable to 2 days at 2 kHz at standard
         settings

8. Final pion and positron check for alignment and efficiencies
   (1 day)

9. Using normal surface muon beam, continuation of 3. and 5. (4
   days total)
   a) B field changes 2 days each for high (2.02 T) and low field
   (1.98 T)

10. Following ramp down to 0T, take some field-off data (surface
    muons, pions) for comparison with field on.  (~1 day total)