Aware Coincidence Box Decoder (C-Box): $85
Aware Triple Coincidence Box Decoder (Triple C-Box) $129
(For use with three RMs to plot Electromagnetic cascades in lead for generation of Rossi Curve. See below)
For a complete turn-key coincidence system, one C-Box plus:
Two RM-60s, RM-70s, RM-80s, RM-G90s or RM-G90-3 (see below) or any combination of RMs:
To interface C-Box to a USB port:
Note both the USB-MSP and the LCD-90 Pro can be controlled by standard ASCII characters and their output recorded with free Windows terminal programs, for example, Tera Term, Putty or Windows Hyper Terminal. On an Apple MAC one can use the built-in Screen command.
For a more complete, sophisticated, feature rich interface using the USB-MSP, LCD-90 Pro or a standard RS-232 serial port:
Aw-Radw Windows Program
Phone or write to order or for more details.
Two RM-60s and a C-Box:
For information about the Muon Project and online sites see:
When two RM-G90-3 devices are connected to our Coincidence Box and placed directly on top of each other, they provide a Cosmic Ray count rate of ~140 Counts per Minute.
Click on photos to enlarge:
Rossi Curve Info.:
Demonstrating cosmic ray induced electromagnetic cascades
Bruno Rossi info.:
BRUNO BENEDETTO ROSSI
Bruno Rossi's "Cosmic Ray Telescope":
Aware's C-Boxes each paired with two RM-60s utilized in NOX-MATTER:
An artist wiring NOX-MATTER:
> 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
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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