Tag Archives: Laboratories

Research suggests that National Labs play an important role in “second laser revolution”

A new study called for the United States to increase its investment in laser R&D in order to better compete with overseas efforts to build large-scale high-power laser systems, and to note the progress and milestones of the Department of Energy’s Berkeley Laboratory Laser Accelerator (BELLA). Other sites.

An investment in this so-called “second laser revolution” promises to open up a range of applications, from machining to medicine to particle acceleration, according to the December report by the National Academies of Sciences, Engineering, and Medicine, which offers independent analysis to government agencies and policymakers.

The 280-page report, “Opportunities in Intense Ultrafast Lasers: Reaching for the Brightest Light “, recommends increased coordination and collaboration by government labs and agencies, universities, and industry to build up U.S. laser facilities and capabilities.

It also recommends that the DOE lead the creation of a national strategy to develop and operate large-scale national laboratory-based laser projects, midscale projects that could potentially be hosted at universities, and a laser tech-transfer program connecting industry, academia, and national labs.

The committee that prepared the report visited Berkeley Lab and other Northern California national labs, including SLAC National Accelerator Laboratory and Lawrence Livermore National Laboratory.

The committee also visited the Extreme Light Infrastructure Beamlines laser facility site that is underway in the Czech Republic, and the Laboratory for Laser Energetics of the University of Rochester in New York.

At the DOE’s Lawrence Berkeley National Laboratory (Berkeley Lab), BELLA scientists are working to develop laser-based acceleration techniques that could lead to more compact particle accelerators for high-energy physics and drivers for high-energy light sources; also, the report notes, “laser expertise and utilization” that had been concentrated at other laboratories “is now broadening with plans for utilization of lasers at (Berkeley Lab)” and elsewhere.

BELLA has made progress in demonstrating the rapid acceleration of electrons using separate stages of laser-based acceleration by forming and heating plasmas in which a powerful wave is created for electrons to “surf” on.

“There’s a lot of work that’s been done already, and Berkeley Lab has been a key developer for the vision of where things need to go,” said Wim Leemans, director of the BELLA Center and the Lab’s Accelerator Technology and Applied Physics Division.

Berkeley Lab was home to a pioneering experiment)in 2004 that showed laser plasma acceleration can produce relatively narrow energy spread beams – reported in the so-called “Dream Beam” issue of the journal Nature – and in 2006 used a similar laser-driven acceleration technique to accelerate electrons to a then-record energy of 1 billion electron volts, or GeV.

That achievement was followed in 2014 by a 4.2 GeV beam, using the powerful new laser that is at the heart of the BELLA Center and will be key to its ongoing campaign for 10 GeV.

In 1996, Berkeley Lab also logged the first demonstration of X-ray pulses lasting just quadrillionths of a second with a technique known as “inverse Compton scattering,” the report notes.

K-BELLA: combining speed and power
“What industry is seeing is the push toward higher-average-power lasers and ultrafast lasers, and it’s starting to impact machining and industrial applications,” Leemans said.

“That’s really good news for us.” In laser lingo, average power relates to how much total power the laser puts out over time, counting the pulses and the “off time” between pulses, while the peak power is that of an individual pulse.

A rapid-fire rate of high-power pulses gives a laser higher average power and can potentially be applied to a wider range of uses.

The National Academies report recommends that U.S. scientific stakeholders should work to define the technical specifications in laser performance goals, such as targets for peak power, repetition rate, length of pulses, and the wavelength of laser light.

In 2012 the BELLA Center’s laser set a record by delivering a petawatt (quadrillion watts) of power packed into pulses that measured 40 quadrillionths of a second in length and came at a rate of one per second.

A new goal is to up this pulse rate to 1,000 per second, or a kilohertz, for a next-gen upgrade dubbed K-BELLA. Producing pulse rates of up to 10,000 or 100,000 per second could make this machine relevant for a new type of laser-based particle accelerator.

“There are lots of applications for a k-BELLA-style laser,” Leemans said. The vision is for k-BELLA to be a collaborative research facility that would be open to scientists from outside the Lab, he said, which also syncs with the recommendations in the report to foster a more cooperative environment for laser science and scientists. Forging and maintaining connections to other world-class laser centers is also key for the U.S. laser program, the report notes.

Another upgrade that may be useful to the U.S. laser program is the addition of a second beamline at BELLA, Leemans said. A second beamline could enable exotic collisions between a beam of light and an electron beam, or between two beams of light.

Laser-produced beams of light elements, and laser-produced low-energy electron beams, could also be pursued at BELLA to develop the biomedical basis for new types of medical treatments that better target cancers, for example.

“We look forward to enhancing our own laser capabilities at Berkeley Lab while working with our partners to strengthen the nation’s laser R and D efforts,” said James Symons, associate laboratory director for physical sciences. “Higher average power lasers will be essential for all practical applications of laser plasma accelerators.”

$10,000 reward for information about CDC doctor Timothy Cunningham

Family of Timothy Cunningham, who hasn’t been seen or gotten notification from since Feb. 12, have cooperated with Crime Stoppers to offer a $10,000 reward in his case, police said Saturday.

The cash is reserved for information that “prompts a capture and arraignment in this case,” Atlanta police representative Officer Donald Hannah stated, yet police don’t really trust a crime has been carried out.

“As of now we have discovered no proof of unfairness,” Hannah said. “Be that as it may, it is our training to investigate any and each probability in a case, for example, this one.”

Cunningham, 35, was accounted for missing Feb. 16 by his folks, who set out from Maryland to keep an eye on their child after he phoned in debilitated to work at the Centers for Disease Control and Prevention four days sooner, The Atlanta Journal-Constitution already revealed.

Terrell Cunningham, the man’s dad, said something must not be right for him to have not connected before.

“This isn’t ordinary,” Terrell Cunningham said. “This is unquestionably strange.”

Police said Cunningham’s folks went to his home and discovered his wallet, telephone and other individual effects he would have been required to keep with him.

Terrell Cunningham said his child is a refined man who moved on from Morehouse and earned a graduate degree and doctorate from Harvard University. As a plague insight officer, Timothy Cunningham has been sent for general wellbeing crises, including superstorm Sandy, Ebola and Zika.

“We ask anybody with any information on the whereabouts of Mr. Cunningham to contact police,” Hannah said.

Information can be submitted namelessly to the Crime Stoppers Atlanta tip line at 404-577-TIPS (8477) or online at www.crimestoppersatlanta.org. People don’t need to give their name or any recognizing information to be qualified for the reward.

CDC doctor Timothy Cunningham missing for weeks

A Centers for Disease Control and Prevention worker was most recently seen 11 days prior, when he exited work ahead of schedule subsequent to whining that he felt unwell, Atlanta police said Friday.

Timothy Cunningham, 35, fills in as an officer in the U.S. General Health Service and has reacted to the Ebola infection and the Zika infection flare-ups, the CDC said. He holds two degrees from Harvard.

Police are presently directing a look for Cunningham and have enrolled the assistance of his family, companions and the graduated class system of his institute of matriculation Morehouse College.

The hunt exertion incorporates little and vast gatherings sorting out to canvas and flyer the neighborhood, dear companion David Calloway. He talked in the interest of the family and is helping lead the hunt.

Online networking, advanced informing administrations and Morehouse’s graduated class organize have extended that exertion across the nation.

Cunningham’s family revealed to NBC News that they remained in close steady contact with each other, and said that he and his sister talked almost consistently. Cunningham’s sister last addressed him around 7 a.m. on Feb. 12, Cunningham’s folks said.

“Tim had been in correspondence with us broadly on Sunday [Feb. 11], and I pinpoint Sunday in light of the fact that there were a few trades by means of telephone and also message that cautioned me to be worried about our child,” his dad Terrell Cunningham said.

Cunningham’s folks said they turned out to be progressively stressed when he didn’t restore any writings or telephone calls. They at that point had more distant family individuals keep an eye on his home in Atlanta, which appeared to be vacant in spite of two open windows — a disturbing subtle element, as Cunningham’s folks said their child was especially ecologically cognizant.

Progressively stressed, Cunningham’s folks said they drove during that time from their Maryland home to Atlanta. When they went into their child’s home, they said they discovered his telephone, wallet, keys and auto undisturbed. His cherished puppy Beau likewise was additionally left at the home, they included.

“Tim never leaves Beau unattended,” Terrell Cunningham said. “He simply doesn’t do it.”

The family said they have connected with their contacts in the restorative group to check healing centers and requested that their companions look parks.

Joe Carlos, a dear companion of Cunningham’s from school and a neighbor in Atlanta, said that he and Cunningham had purchased tickets to go to a function a weekend ago that commended the commemoration of the establishing of Morehouse, their place of graduation.

“Our last correspondence the week earlier was tied in with hanging out previously and going down to the VIP gathering and having fun,” Carlos said. “I can represent myself thus numerous colleagues this is, extremely stunning.”

Cunningham’s companions portrayed him as stubborn, positive and cheerful — and they noticed his dependability.

“He has this immaculate administration record and foundation, and after that he’s additionally the person you can call to enable you to move furniture or get together with you at an eatery toward the finish of a taxing day,” said Calloway, who likewise knew Cunningham from school and has kept up a cozy association with him throughout the years.

Cunningham is additionally noted for his support of the Atlanta people group, winning the Outstanding Atlanta grant in 2014 in acknowledgment of his “administration, initiative and accomplishments of Atlanta youthful experts.” He was named to the Atlanta Business Chronicle’s 40 under 40 a year ago.

His companions said that Cunningham is darling in the Atlanta people group and by the individuals who know him. Accordingly, they said they have raised more than $20,000 as a reward for data that finds him. They said they intend to keep up the pursuit as long as it takes.

“There has been an overflowing of adoration from his neighbors and the group, yet my principle center is only that my child returns home,” his mom Tia-Juana Cunningham said.

“Tim, in the event that you see any of this data please realize that you can return home,” his mom included, talking specifically to her child. “We cherish and miss you. We simply need you back in our arms.”

Anybody with might have data is asked to call 911 or the Atlanta Police Homicide/Adult Missing Persons Unit at (404)546-4235.