아래는 CERN, LHC의 사고와 수리 그리고 추후 일정에 대한 공식표명입니다.
일단 LHC의 3-4번 섹터에서 대규모 헬륨 유출이 있었고 수리를 위해 상온까지 온도를 높혀준 후 수리를 하는데 3-4주 이상이 걸린다고 합니다. 정확한 원인 규명을 하는 것이 중요하니 매우 신중하게 과정이 진행될 것으로 보이며 따라서 가동일을 2009년 봄으로 잡은 모양입니다.
아래 그림에서 3-4번 섹터만 온도가 올라가 있는 것을 확인할 수 있습니다. (2008년 9월 23일 LHC 온도분포)
워낙 대규모의 실험이고 모든 테크놀로지가 최첨단인-말하자면 모든 것이 프로토타입인- 실험이니 만큼 크고 작은 사고나 지연 그리고 작동 이상등은 늘 예상할 수 있는 일이고 당연히 CERN의 모든 분들이 무난히 문제를 해결하리라 기대해 봅니다. 그래도 심리적 타격이 있는 건 사실이라고 하네요.
****************************************
Source: CERN
Content: Press Release
Date Issued: 23 September 2008
****************************************
LHC re-start scheduled for 2009
Geneva, 23 September 2008.—Investigations at CERN* following a large helium leak into sector 3-4 of the Large Hadron Collider (LHC) tunnel have indicated that the most likely cause of the incident was a faulty electrical connection between two of the accelerator's magnets. Before a full understanding of the incident can be established, however, the sector has to be brought to room temperature and the magnets involved opened up for inspection. This will take three to four weeks. Full details of this investigation will be made available once it is complete.
“Coming immediately after the very successful start of LHC operation on 10 September, this is undoubtedly a psychological blow,” said CERN Director General Robert Aymar. “Nevertheless, the success of the LHC's first operation with beam is testimony to years of painstaking preparation and the skill of the teams involved in building and running CERN's accelerator complex. I have no doubt that we will overcome this setback with the same degree of rigour and application.”
The time necessary for the investigation and repairs precludes a restart before CERN's obligatory winter maintenance period, bringing the date for restart of the accelerator complex to early spring 2009. LHC beams will then follow.
Particle accelerators such as the LHC are unique machines, built at the cutting edge of technology. Each is its own prototype, and teething troubles at the start-up phase are therefore always possible.
“The LHC is a very complex instrument, huge in scale and pushing technological limits in many areas,” said Peter Limon, who was responsible for commissioning the world's first large-scale superconducting accelerator, the Tevatron at Fermilab in the USA. “Events occur from time to time that temporarily stop operations, for shorter or longer periods, especially during the early phases.”
CERN has received similar words of support from several laboratories, including Germany's DESY, home of the HERA superconducting particle accelerator, which ran from 1992 to 2007.
“We at DESY have been following the commissioning of the LHC with great excitement and have been very impressed with the success of the first day,” said Albrecht Wagner, DESY Director. “I am confident that our colleagues at CERN will solve the problem speedily and we will continue to support them as much as we can.”
Contact information:
James.Gillies@cern.ch
+ 41 22 767 4101
일단 LHC의 3-4번 섹터에서 대규모 헬륨 유출이 있었고 수리를 위해 상온까지 온도를 높혀준 후 수리를 하는데 3-4주 이상이 걸린다고 합니다. 정확한 원인 규명을 하는 것이 중요하니 매우 신중하게 과정이 진행될 것으로 보이며 따라서 가동일을 2009년 봄으로 잡은 모양입니다.
아래 그림에서 3-4번 섹터만 온도가 올라가 있는 것을 확인할 수 있습니다. (2008년 9월 23일 LHC 온도분포)
워낙 대규모의 실험이고 모든 테크놀로지가 최첨단인-말하자면 모든 것이 프로토타입인- 실험이니 만큼 크고 작은 사고나 지연 그리고 작동 이상등은 늘 예상할 수 있는 일이고 당연히 CERN의 모든 분들이 무난히 문제를 해결하리라 기대해 봅니다. 그래도 심리적 타격이 있는 건 사실이라고 하네요.
****************************************
Source: CERN
Content: Press Release
Date Issued: 23 September 2008
****************************************
LHC re-start scheduled for 2009
Geneva, 23 September 2008.—Investigations at CERN* following a large helium leak into sector 3-4 of the Large Hadron Collider (LHC) tunnel have indicated that the most likely cause of the incident was a faulty electrical connection between two of the accelerator's magnets. Before a full understanding of the incident can be established, however, the sector has to be brought to room temperature and the magnets involved opened up for inspection. This will take three to four weeks. Full details of this investigation will be made available once it is complete.
“Coming immediately after the very successful start of LHC operation on 10 September, this is undoubtedly a psychological blow,” said CERN Director General Robert Aymar. “Nevertheless, the success of the LHC's first operation with beam is testimony to years of painstaking preparation and the skill of the teams involved in building and running CERN's accelerator complex. I have no doubt that we will overcome this setback with the same degree of rigour and application.”
The time necessary for the investigation and repairs precludes a restart before CERN's obligatory winter maintenance period, bringing the date for restart of the accelerator complex to early spring 2009. LHC beams will then follow.
Particle accelerators such as the LHC are unique machines, built at the cutting edge of technology. Each is its own prototype, and teething troubles at the start-up phase are therefore always possible.
“The LHC is a very complex instrument, huge in scale and pushing technological limits in many areas,” said Peter Limon, who was responsible for commissioning the world's first large-scale superconducting accelerator, the Tevatron at Fermilab in the USA. “Events occur from time to time that temporarily stop operations, for shorter or longer periods, especially during the early phases.”
CERN has received similar words of support from several laboratories, including Germany's DESY, home of the HERA superconducting particle accelerator, which ran from 1992 to 2007.
“We at DESY have been following the commissioning of the LHC with great excitement and have been very impressed with the success of the first day,” said Albrecht Wagner, DESY Director. “I am confident that our colleagues at CERN will solve the problem speedily and we will continue to support them as much as we can.”
Contact information:
James.Gillies@cern.ch
+ 41 22 767 4101
덧글
宣美 2008/09/24 17:07 # 답글
하긴 LHC가 너무 크니까요 저번 서울크기랑 비교한거보고 정말 감탄햇다는 ㅋㅋ테바트론은 고장도 안낫엇나요??? 테바트론도 LHC보단 작아도 상당하던데 ㄷㄷㄷ
니그 2008/09/25 17:13 # 답글
저또한 서울크기 그림보고 규모의현실감이느껴졌어요 ㅋㅋ
나그 2008/09/30 17:08 # 삭제 답글
LHC 실험은 물 건너간 것으로 보입니다만...세계 경제가 절단났는데 가동할 비용을 마련할 수 있을지모르겠네요.