Aware Coincidence Box Decoder (C-Box): $85
Aware Triple Coincidence Box Decoder (Triple C-Box) $129
Phone or write to order or for more details.
Muon Project
We now sell a triple coincidence box (Triple C-Box $129) for use with three RMs to plot Electromagnetic cascades in lead for generation of Rossi Curve.
Rossi Curve Info.:
Demonstrating cosmic ray induced electromagnetic cascades
Bruno Rossi info.:
BRUNO BENEDETTO ROSSI
> I have 2 of your RM-80 units, and was curious about the
Coincidence Box Decoder.
> 1) Does the Coincidence Box power both units from the serial port(s), or does
it require a battery?
Both units and the Coincidence Box are powered from one serial port no problem.
> 2) Does it require 2 serial ports?
Only one serial port is needed for the coincidence counts. If you
want also to gather rad data from the two RM units at the same time, an
extra serial port per RM is needed, for a total of three, that is, one
serial port for the coincidence counts and one serial port for each RM.
In this case, the telephone cable from each RM is split into two lines
with a telephone line splitter ($1.00). One of the lines from each RM
goes to the coincidence box, and the other line goes to one of the
serial ports.
> 3) Do 3 separate graphs result (one from each unit and a
coincidence one?
Yes, with the above setup. Otherwise, with one serial port, just coincidence counts are plotted.
> 4) Could a fan-filter be put on one and still have it record
the coincidence counts?
Coincidence counts result when an ionizing particle passes through
both tubes. The closer the tubes, the more likely a muon will pass
through both. You could place one RM-80 with fan-filter on top of the
second RM-80 such that a good percentage of the muons passing through
the RM-80 with fan-filter will also pass through the other RM-80, if
both windows are oriented horizontally, since the majority of muons pass
vertically from the sky down.
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