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
11/21/2018
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
SUF: Limited by Neutron Background
CDMS-II in a 3000ft Deep Mine in Soudan, MN
11/21/2018
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
11/21/2018
CHEP 2003

5. Need Remote Controlled DAQ
Provide Means to Remotely Control & Monitor: A Virtual Control 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
11/21/2018
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
11/21/2018
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
11/21/2018
CHEP 2003

11. Live Demo of Remote Control
11/21/2018
CHEP 2003