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"Jabberwocky"
"This is an important milestone in the repair process," said CERN's Director for Accelerators and Technology, Steve Myers. "It gets us close to where we were before the incident, and allows us to concentrate our efforts on installing the systems that will ensure a similar incident won't happen again."
The final magnet, a quadrupole designed to focus the beam, was lowered this afternoon and has started its journey to Sector 3-4, scene of the September incident. With all the magnets now underground, work in the tunnel will focus on connecting the magnets together and installing new safety systems, while on the surface, teams will shift their attention to replenishing the LHC's supply of spare magnets.
In total 53 magnets were removed from Sector 3-4. Sixteen that sustained minimal damage were refurbished and put back into the tunnel. The remaining 37 were replaced by spares and will themselves be refurbished to provide spares for the future.
"Now we will split our team into two parts," explained Lucio Rossi, Deputy head of CERN's Technology Department. "The main group will carry out interconnection work in the tunnel while a second will rebuild our stock of spare magnets."
The LHC repair process can be divided into three parts. Firstly, the repair itself, which is nearing completion with the installation of the last magnet today. Secondly, systems are being installed to monitor the LHC closely and ensure that similar incidents to that of last September cannot happen again. This work will continue into the summer. Finally, extra pressure relief valves are being installed to release helium in a safe and controlled manner should there be leaks inside the LHC's cryostat at any time in the machine's projected 15-20 year operational lifetime.
CERN is publishing regular updates on the LHC in its internal Bulletin, available at www.cern.ch/bulletin, as well as via twitter and YouTube at www.twitter.com/cern and www.youtube.com/cern
The Latest from Artificial Intelligence and Robotics |
Willow Garage robot continues to advance
Posted: 17 Jun 2009 03:46 AM PDT
Earlier this month, Willow Garage's Personal Robot 2 (PR2) robot successfully passed the second project milestone navigating an office environment, opening doors, and plugging in the electrical supply to recharge its batteries. The first milestone the robot successfully passed last December (if my memory serves me well) was about navigating around an office environment but without the requirement of opening doors.
Have you ever read any Lewis Carroll? Well, you really should! He is and always will be known primarily for the twin works "Alice's Adventures In Wonderland," and "Through The Looking-Glass And What Alice Found There." I would like to call the reader's attention to the following passage, to be found within "Through The Looking-Glass..." Chapter V, entitled "Wool and Water ~40th page in. The White Queen (who is precisely one-hundred and one years, five months and one day old) explains to Alice that people that live there (on the other side of the mirror) live their lives backwards. They remember events on both sides of the time continuum as well as experiencing the present. Alice asks the Queen which events she remembers best, to which she replies, events that take place about a week and a half from now. Alice remarks that her memory only works in one direction, backwards into the past. The Queen finds this to be a curious malady, and tells Alice that her memory is certainly flawed!