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博主胡德良:邢台学院外语系英语教授,中国译协专家会员,河北省译协常务理事,邢台市译协副会长。爱好翻译,内容涉及宇宙探秘、医疗卫生、家庭保健、生命科学、能源科学、地球科学、环境科学、散文小说和纪实文学等领域。所译文章曾见于《光明日报》《科技日报》《健康时报》《健康报》《英语世界》《英语知识》《科技英语学习》《科学之友》《科学与文化》《世界科学》《生命世界》等全国各大报刊。博客特色:英汉对照、图文并茂,融趣味性、科学性、知识性为一体。

最具威力的粒子加速器(图)  

2009-12-03 00:19:25|  分类: 尖端科技 |  标签: |举报 |字号 订阅

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最具威力的粒子加速器(图) - 月亮飞船 - 欢迎光临月亮飞船的博客

大型强子对撞机(LHC) 

LHC Officially Becomes Most Powerful Accelerator

Written by Nicholos Wethington   胡德良

 Well, they've done it: at 2028 GMT, 29 November 2009 the Large Hadron Collider officially became the most powerful particle accelerator ever built by humans. One of the proton beams in the LHC was powered up to 1.05 teraelectron volts (TeV) at that time, and three hours later both of the beams were powered to 1.18 TeV. This breaks the previous record held by the Fermilab accelerator in Chicago, which has held the record of .98 TeV since 2001.

 哇……他们成功了!格林尼治标准时间200911292028分,大型强子对撞机(LHC)成为人类制造的最具威力的粒子加速器。当时,LHC中的一条质子束被推动到高达1.05万亿电子伏特(TeV)的能量。三个小时后,两条质子束都被加速到1.18 TeV,打破了此前由芝加哥费米实验室的粒子加速器所保持的记录。2001年以来,费米实验室所保持的记录为0.98 TeV

 Despite the initial problems that the largest scientific instrument ever built had this past year, things seem to be progressing smoothly. Last week, the proton-proton beams were collided for the first time. This latest record accelerated the protons to 0.9997 times the speed of light.

 在过去的一年中,尽管这台有史以来最大的科学仪器出现了一些根本性的问题,但是情况似乎进展得比较顺利。上周,首次实施了质子束对质子束的碰撞,最新记录是把质子加速到光速的0.9997倍。

 No new collisions were seen at this latest milestone, as it is just part of the process of powering up the beams to the projected 7 TeV needed for the first experiments of next year. Each beam will be powered up to 3.5 TeV to smash protons in order to re-create the conditions that existed near the time of the Big Bang, and help physicists understand the fundamental nature of matter. The 7 TeV goal should be reached by the end of December, and the first collisions at the amazing energies of the LHC will occur in early 2010.

 在这次具有重大意义的事件中所观察到的并不是什么新奇的碰撞,这只是质子束加速过程中的一个环节,明年的试验需要把质子束加速到原计划的能量——7 TeV。为了再现宇宙大爆炸之初的情况,为了帮助物理学家们理解物质的基本特性,每一条质子束的能量都将被提高到3.5 TeV,然后使质子发生碰撞。7 TeV的目标到12月底应该能够达到,LHC2010年年初将会进行首批高能碰撞。

 Director-General of CERN Rolf Heuer said the recent progress has been fantastic. "However, we are continuing to take it step by step, and there is still a lot to do before we start physics in 2010," he said. "I'm keeping my champagne on ice until then."

 欧洲核子研究中心(CERN)主任罗尔夫·赫尔说,近期取得的进步是显著的。“然而,我们正在一步一步地往下进行……在2010年的物理试验开始之前,还有许多工作要做。”他说,“我要把我的庆功香槟准备好,迎接那一时刻的到来!”

 The LHC, is a 27 km (17 mile) long circular tunnel composed of super-cooled, superconducting magnets that runs underneath the town of Geneva, Switzerland. By colliding protons together at such energetic speeds, some fundamental questions about what matter is made of, and what the conditions were like around the earliest times of our Universe may be answered.

 LHC长达27公里(17英里),是一台安装在隧道里的圆形仪器,由超冷的超导磁体构成,在瑞士日内瓦的城下穿过。通过如此高能高速的质子碰撞,有关物质是由什么构成的、宇宙最早期的情况如何等基本问题可能会得到解决。

译自:http://www.universetoday.com/ (2009/11/30) 

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