a vibrating electrometer with each one of
them and they are quite heavy.
If an
accelerator is built so that potential
radiation havarda exist on many levels of
the building, and this often happens, a
survey can become quite strenuous, (Laughtere)
The development of a portable DC
émplifier with sensitivities that range down
to this region would be quite a convenience |
for us.
We could, had we a sufficient
number of ionization chambers which we don't,
use them as condenser chambers with a single
electrometer.
have tried.
This is an approach that we
Whenever possible we use propore
tional counters to supplement the information
obtained by ionization chambers, —
.
Due to the great flexibility and
form of sensitivity which enn be achieved
with these things, the information obtained
from such instruments can be quite valuable,
BF,
and
The long counter, the HangoneNeXibben
Long Counter, is the most sensible,reliable
generally accurate example of such an