Featured Research

from universities, journals, and other organizations

CERN: Celebrating The Lowering Of The Final Detector Element For Large Hadron Collider

Date:
January 25, 2008
Source:
CERN
Summary:
In the early hours of the morning the final element of the Compact Muon Solenoid detector began the descent into its underground experimental cavern in preparation for the start-up of CERN's Large Hadron Collider this summer.

The 15th and last piece of the CMS detector, an endcap of 1430 tonnes, was lowered 100 metres underground.
Credit: Image courtesy of CERN

In the early hours of the morning the final element of the Compact Muon Solenoid (CMS) detector began the descent into its underground experimental cavern in preparation for the start-up of CERN’s Large Hadron Collider (LHC) this summer. This is a pivotal moment for the CMS collaboration, as the experiment is the first of its kind to be constructed above ground and then lowered, element by element, 100 metres below. It marks the culmination of eight years of work in the surface hall, and moves CMS into final commissioning before registering proton-proton collisions at the LHC.

The journey started 14 months ago, when the first of 15 elements of the CMS detector was carefully lowered, with just a few centimetres of leeway, by a huge gantry crane, custom-built by the VSL group. The final element is an asymmetrical cap that fits into the barrel element of the experiment and weighs around 1430 tonnes. It includes fragile detectors that will help identify and measure the energy of particles created in LHC collisions.

“CMS is unique in the way that the detector was constructed in very large elements in a surface assembly building and then lowered underground”, explained Austin Ball, CMS Technical Coordinator. “This is likely to become a model for future experiments, as the technique can now be considered proven.”

There are many advantages to planning an experiment in this way, such as the ability to save time by working simultaneously on the detector while the experimental cavern was being excavated. There were also fewer risks when working on the surface, and elements of detector could be tested together before lowering them.

Experiments at the LHC will allow physicists to take a big leap on a journey that started with Newton's description of gravity. Gravity is ubiquitous since it acts on mass, but so far science is unable to explain why particles have the masses they have. Experiments such as CMS may provide the answer. LHC experiments will also probe the mysterious missing mass and dark energy of the Universe, they will investigate the reason for nature's preference for matter over antimatter, probe matter as it existed close to the beginning of time and look for extra dimensions of spacetime.

“This is a very exciting time for physics,” said CMS spokesman Tejinder Virdee, “the LHC is poised to take us to a new level of understanding of our Universe.”


Story Source:

The above story is based on materials provided by CERN. Note: Materials may be edited for content and length.


Cite This Page:

CERN. "CERN: Celebrating The Lowering Of The Final Detector Element For Large Hadron Collider." ScienceDaily. ScienceDaily, 25 January 2008. <www.sciencedaily.com/releases/2008/01/080122154445.htm>.
CERN. (2008, January 25). CERN: Celebrating The Lowering Of The Final Detector Element For Large Hadron Collider. ScienceDaily. Retrieved August 28, 2014 from www.sciencedaily.com/releases/2008/01/080122154445.htm
CERN. "CERN: Celebrating The Lowering Of The Final Detector Element For Large Hadron Collider." ScienceDaily. www.sciencedaily.com/releases/2008/01/080122154445.htm (accessed August 28, 2014).

Share This




More Matter & Energy News

Thursday, August 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Australian Airlines Relax Phone Ban Too

Australian Airlines Relax Phone Ban Too

Reuters - Business Video Online (Aug. 26, 2014) Qantas and Virgin say passengers can use their smartphones and tablets throughout flights after a regulator relaxed a ban on electronic devices during take-off and landing. As Hayley Platt reports the move comes as the two domestic rivals are expected to post annual net losses later this week. Video provided by Reuters
Powered by NewsLook.com
Hurricane Marie Brings Big Waves to California Coast

Hurricane Marie Brings Big Waves to California Coast

Reuters - US Online Video (Aug. 26, 2014) Huge waves generated by Hurricane Marie hit the Southern California coast. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Chinese Researchers Might Be Creating Supersonic Submarine

Chinese Researchers Might Be Creating Supersonic Submarine

Newsy (Aug. 26, 2014) Chinese researchers have expanded on Cold War-era tech and are closer to building a submarine that could reach the speed of sound. Video provided by Newsy
Powered by NewsLook.com
Breakingviews: India Coal Strained by Supreme Court Ruling

Breakingviews: India Coal Strained by Supreme Court Ruling

Reuters - Business Video Online (Aug. 26, 2014) An acute coal shortage is likely to be aggravated as India's supreme court declared government coal allocations illegal, says Breakingviews' Peter Thal Larsen. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins