Experimented with slow comparator thresholds as we go down to lower beam energies

Checked deadlayer loses with SRIM, expected ruthford energies are as follows:

150keV/u -> 230keV

100keV/u -> 120keV

80keV/u -> 76keV

New thresholds:

aida1-4 0xc (120keV)

aida5-8 0x8 (80keV)

aida9-12 0x5 (50keV)

aida13-16 0x64(1MeV) set to MEC channel

Statistics and data rate with beam on but no target

Deleted April 24,25 and G22-86 from GSI, backup in Edinburgh