We have set-up a very small laboratory to execute unique operations required for testing the neural network capabilities. Here we have demonstrated the basic scheme of the laboratory development. Note that we are showing the complete set-up here using Ar STM, however, the complete system could be attached to the UHV STM simply by transporting them to the unit.
Currently we are modifying our Omicron UHV-STM so that, much more powerful neural network characterisation is carried out.
Note that most of the results published by us are taken in JEOL STM modified for measurements as low as liquid nitrogen environment (see below).
Please find below name of unique functional parts and how they look like?
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Overall view of the complete set up in my lab. two computers, one controls STM other one controls function generators, 9 independent voltage sources Keithley IV measurement set up, and four parallel channel Oscilloscope.
All connections pass through a neural network controller before reaching to an integrated 16 channel signal feeded to the bio-processor under study. 16 channels could be continuous or provide pulsed signal.
Outputs from STM system is feeded to four channel Oscilloscope for pulsed output, and keithley current meters for DC outputs. We measure change in image and current in the STM, during neural signal processing in situ.
We have written a dedicated LabView program Udvan Yantra for sending pattern based signal to the bio-processor chip under development and one can select simply by clicking the nodes of his choice for the operation.
Playing with ground level is a very interesting kind of study with bio-processor, conceptually this means keeping particular parts in our brain silent. Therefore we mimic controlled thinking inside our brain.
Finally the 16 channel pattern signal is transported to the STM, here STM is kept in Argon environment. Note that this is quite impractical to use UHV-STM for this purpose as electrical noise from the 16 channel cable destroys the signal processing.
Jeol UHV-STM modified for operating in Liquid nitrogen temperature. This is my long time friend and I spent sleepless nights months after months with this machine. Most of our data are produced in this machine.
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You are welcome to visit our laboratory and see these uncommon attachements and also get experience of much more advanced series of STMs positioned in the ANCC center.
Contact: Anirban Bandyopadhyay, National Institute for Materials Science, Tsukuba, Japan-305-0037
