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Remote Controlled DAQ for Cryogenic Dark Matter Search: Innovations and Challenges

This presentation outlines the remote-controlled data acquisition (DAQ) system developed for the Cryogenic Dark Matter Search (CDMS) experiment, addressing the challenges of conducting research in a remote mine location. By leveraging the Internet, experts can control and monitor experiments off-site, enabling timely diagnosis and resolution of issues without extended on-site presence. Key technologies, including JAVA, C++, and CORBA, facilitate a distributed and modular framework for seamless operation. The innovative DAQ system enhances experimentation flexibility and efficiency in the search for elusive dark matter particles.

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Remote Controlled DAQ for Cryogenic Dark Matter Search: Innovations and Challenges

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  1. Cryogenic Dark Matter Search Remote Controlled DAQ Rupak Mahapatra UC Santa Barbara (for the CDMS Collaboration) CHEP 2003

  2. Overview • CDMS Experiment • Data Acquisition Challenge • Goals of the DAQ • Tools to achieve these goals • Status CHEP 2003

  3. Cryogenic Dark Matter Search • Dark Matter: Where is the Missing Mass of the Universe? Rotation Curves Imply Much More Mass • Strongest candidate: Super-Symmetric Weakly Interacting Massive Particle (WIMP) > 40 GeV • Super-Sensitive Cryogenic Ge & Si Phonon & Ionization Detectors with ~5keV Sensitivity • CDMS-I @ SUF: Limited by Neutron Background • CDMS-II in a 3000ft Deep Mine in Soudan, MN CHEP 2003

  4. DAQ Challenge in Soudan, MN • Experiment Location: A Challenge for Having Expertise Available On-Site • Limited Mine Accessibility: Can Not Get Control of Experiment on Demand CHEP 2003

  5. Need Remote Controlled DAQ • Provide Means to Remotely Control & Monitor: A Virtual Control Room @Anywhere On Demand • Not Only Provide Control From Outside the Mine, But Also Bring in The Expertise To The Mine By Providing Them Remote Access, Using Internet • Have Experts Diagnose & Fix Problems Remotely • In Normal Running No Need to Have Experts On Site, Provided We Can Have Them When Needed CHEP 2003

  6. This would be reality ……

  7. Innovation is the key This, the dream …..

  8. Tools of This DAQ • Needed a Distributed, Platform Ind., Networked Control System, Using Internet For Remote Access • Used JAVA, C++ AND CORBA To Achieve This • Hardware Servers Written in JAVA & C++ • CORBA and JAVA RMI for Inter Process Calls • Developed Universal Communication Modules • Remote GUIs and Plots in JAVA using RMI CHEP 2003

  9. New DAQ Benefits • Remote Control: Innovative and Crucial • Internet based access allows anywhere-control • Reduces need for extended onsite presence • Exploit the Internet • Complete Platform Flexibility: Win, Mac, Unix. • Modern language (JAVA) Allows This • Highly Modular & Scalable Software Framework • Easy and inexpensive to adapt and develop • No major modifications needed for adding components

  10. How This Works • Download client software from web-page • Client software talks to Run Control server (via Internet) running on mine computer • Run Control then conducts the orchestra of all software components running on mine computers to do the experiment CHEP 2003

  11. Live Demo of Remote Control CHEP 2003

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