Here is a summary of the background run data from February 1, 2000.

Run#   HER	LER
-------------------------------
1) HER only
-------------------------------
11287   93	0
11288  193	0
11289  290	0
11291  390	0	
11292  490	0
11293  570	0
-------------------------------
2) HER & LER interleaved by 4 buckets with LER at 775 mA
-------------------------------
11294    0	775
11295  100	775
11296  294	775
11297  400	775
11298  490	775
-------------------------------
3) HER & LER interleaved by 4 buckets with LER at 475 mA
-------------------------------
11299    0	475
11300  100	475
11301  320	475
11302  500	475
11303  500      475  with LER dumped 

Had very few aborts, thanks to increased SVT abort thresholds
(acute dose threshold at 300 mRad).