4 ms·

LHC 2025 First Collisions

34 points by elashri 2y ago

kzrdude 1y ago
What are they looking for at the moment?
- sgt101 1y ago
  money
- lokimedes 1y ago
  The LHC is a discovery machine, so a large number of searches for new physics as well as measurements of known physics can take place at the same time. The idea that it is a single-trick experiment is a misconception. Its a quantum statistical experiment where proton collisions at high energy yields random particles based on the probability of specific interactions taking place.
  - infogulch 1y ago
    This is unnecessarily dismissive. Even the grants themselves will include a list of things they hope to discover or measure with this refresh; this is a perfectly reasonable question to ask.
fx18011 1y ago
i am interested to know about the tech stacks of the website i.e., how the data is displayed
- dudefeliciano 1y ago
  it's just an img tag with an image that is updated a few times per minute, guessing it's a screenshot of some sensor terminal at cern? :D
  - egometry 1y ago
    Probably not Many old monitoring programs just literally generated graphs like these using input data and outputted a static image on a cron/tick. "Expensive" once, then cached... in the form of the image I'm guessing this is that sort of tech
- MisterTea 1y ago
  These are screenshots taken from SCADA screens. Architecture briefly explained here: https://accelconf.web.cern.ch/ica05/proceedings/pdf/O3_005.pdf https://accelconf.web.cern.ch/ica05/proceedings/pdf/O3_005.p... I also want to mention EPICS which is used by quite a few physics and telescope projects: https://epics-controls.org/epics-users/projects/ https://epics-controls.org/epics-users/projects/ When CERN Was looking at software they found EPICS wasn't up for the task at the time: https://cds.cern.ch/record/532705/files/ma1o06.pdf https://cds.cern.ch/record/532705/files/ma1o06.pdf
tux3 1y ago
The LHC also has a public Grafana (mostly for cryo stuff): https://dash.web.cern.ch/dashboards/ https://dash.web.cern.ch/dashboards/ And there used to be a very fancy LHC dasboard at http://meltronx.com/index.html http://meltronx.com/index.html Unfortunately the site breaks with HTTPS and modern browsers (mixed content isn't allowed anymore, and they never updated it). It has to be http:// http://.

34 points by elashri 2y ago

kzrdude 1y ago

What are they looking for at the moment?

sgt101 1y ago
money
lokimedes 1y ago
The LHC is a discovery machine, so a large number of searches for new physics as well as measurements of known physics can take place at the same time. The idea that it is a single-trick experiment is a misconception. Its a quantum statistical experiment where proton collisions at high energy yields random particles based on the probability of specific interactions taking place.
- infogulch 1y ago
  This is unnecessarily dismissive. Even the grants themselves will include a list of things they hope to discover or measure with this refresh; this is a perfectly reasonable question to ask.

fx18011 1y ago

i am interested to know about the tech stacks of the website i.e., how the data is displayed

dudefeliciano 1y ago
it's just an img tag with an image that is updated a few times per minute, guessing it's a screenshot of some sensor terminal at cern? :D
- egometry 1y ago
  Probably not Many old monitoring programs just literally generated graphs like these using input data and outputted a static image on a cron/tick. "Expensive" once, then cached... in the form of the image I'm guessing this is that sort of tech
MisterTea 1y ago
These are screenshots taken from SCADA screens. Architecture briefly explained here: https://accelconf.web.cern.ch/ica05/proceedings/pdf/O3_005.pdf https://accelconf.web.cern.ch/ica05/proceedings/pdf/O3_005.p... I also want to mention EPICS which is used by quite a few physics and telescope projects: https://epics-controls.org/epics-users/projects/ https://epics-controls.org/epics-users/projects/ When CERN Was looking at software they found EPICS wasn't up for the task at the time: https://cds.cern.ch/record/532705/files/ma1o06.pdf https://cds.cern.ch/record/532705/files/ma1o06.pdf

tux3 1y ago

The LHC also has a public Grafana (mostly for cryo stuff): https://dash.web.cern.ch/dashboards/ https://dash.web.cern.ch/dashboards/ And there used to be a very fancy LHC dasboard at http://meltronx.com/index.html http://meltronx.com/index.html Unfortunately the site breaks with HTTPS and modern browsers (mixed content isn't allowed anymore, and they never updated it). It has to be http:// http://.