Researchers take advantage of the promise of compact x -ray free electron lasers

In collaboration with scientists of the Tao Systems Inc., the new research by scientists from the US Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) has brought a step closer to the promise of small and more cheap X -ray electron lasers.

X -ray free electron lasers (XFels) are powerful sources of light and are usually large research devices. Scientists used them to investigate the secrets of nature at the atom level, enabling them to develop in medicine, biology, physics, materials and more. It is expected that pressure for the development of more compact and less expensive XFLs is expected to increase the number of facilities that will enforce the technology, which will greatly expand its effects in many fields of science.

“As part of this effort, the Exception Technology and Applied Physics (ATAP) Division Scientist, Sam Barber, said,” As part of this effort, we are applying our diverse expertise in a kind of advanced accelerator called Laser Plasma Axleration to shrink the Xphilles. ” “In addition to the standstone light sources, the extraordinary high quality electron beam of plasma accelerators can be injected into existing XFLs to significantly enhance their performance.”

Is the first author of a new research published in the barber Physical review posts This shows how the Xifles can be significantly reduced, yet provides the significant visible strength of huge machines. Other co -authors of this study include Berkeley Lab’s Jeroin Van Tilberg, Carl Schrurd, and Scientists from the Tao Systems Inc..

To use laser plasma excludes to shrink Xifles

In their new work, researchers advance the use of laser plasma accelerators (LPA) to produce high quality electron beams. Plasma is the gas of positive charged ions and negative charged electrons. For their procedure, Van Tilberg, a senior scientist at the Berkeley Lab Laser Excellers (Bella) Center, explained that instead of pumping radio frequency waves into a long linear accelerator to accelerate the electron beam, “we excited a wave. [of electron density] In the plasma, in which the other background plasma electron can ride a thousand times faster setting and accelerate. “

Researchers are limited to the traditional linear accelerator of the ME 50 MW electron beam acceleration benefits. With plasma, however, 100 gigults (GEV) per meter per meter is possible, which is more than a thousand times stronger, thus shrinking the distance of the accelerator.

Van Tilberg said, “Whoever translates, is that you can produce a multi -GV electron beam, and instead take a kilometer of it. [of physical space]It takes meter or less time to get there. “

Reaching these high energy is just a part of the recipe, as Xifles also require extraordinary high quality electron beams. Another aspect where the high sectors of the plasma can be helpful to be properly controlled. If both of these conditions are met, and when the electron beam is interpreted as special magnetic devices, called the Andulator Magnet, the wiggling beam begins to break down. If the conditions are fine, the radiation increases rapidly as it moves along with the unintentional, which produces some of the brightest sources of X -ray of the earth.

Provided to provide compact LPA, plasma -based acids also need to make high quality electron beams reliable and stable. In this work, the Berkeley Lab team took an important step towards this goal, demonstrating strong efficiency of FEL radiation with extraordinary stability and reliability during the operation hours. These experiments were carried out in the Bella Center in a system of years. Their work is the first LPA FEL work progress through Wang El. And leans, etc. LPAFEL in terms of strengthening of physics and light source.

Open new Frontiers in Biology and other applications

The promise of Compact Exfles can open in biological research in photo lithography for new Frontiers to make complex proteins site imaging, powerful imaging of nanosterics, and to produce the latest semiconductor chips.

“The LPA is a high -ranking accelerator technology that has the ability to affect applications where a premium on compact,” said Shrourider, a senior scientist at Bella Center. “The development of LPA -based free electron lasers is an important step -by -step stone for other applications of this technology, such as linear accelerator for high -energy physics.”

The LPA stand capacity to produce the very bright electron beam also offers a way to upgrade existing XFEL facilities to increase their access to access. Traditional fels usually reach the so -called saturation government, where Plus Energy Pluto increases rapidly. In the Cantridge government, running the LPA -driven FEL, and pushing the wavelength of radiation in the X -ray government, are next steps for the LPA field. “We believe that our setup at the Bella Center provides us with an ideal platform to continue the milestone and set a road map towards the development of LPA -powered light sources,” Barber said.

The Tao Systems Inc. played a key role in the work. His team specialized in the Bella Center’s hundredth Undulator LPA FEL facility at Excelor Beam Physics and Operational concepts. This plasma source influenced the electron beam successfully and through the underwlator. “These FEL results confirm the basis that the LPA has opened a revolutionary sample shift in which we see the Axlers, and what is possible with them,” said Stephen Milton, the lead scientist at the Tao Systems Inc. on this project.

“This is a major result,” the barber said about the recently published work. “The fact is that two to three orders of the Fail Fail Gane are so important that the LPA is developing high quality electron beams needed to operate.

“High quality (low increase, high peak current) development of LPA electron beams is essential to upgrade new fellas and current light sources, and high -energy particle represents an important milestone on roadmap of collectors where high -energy experiences have high luxury experiments.”