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Fusion breakthrough a ‘marvel’ of global scientific collaboration, including Canada

Published

2 years ago

December 14, 2022

Fusion breakthrough a 'marvel' of global scientific collaboration, including Canada

The fusion ignition breakthrough that has experts hailing a new dawn in the search for clean energy took a lot of help from around the world — including Canada.

Researchers at the University of Alberta have been working for years on theoretical models to interpret the results of precisely the sort of laser-plasma interaction experiments at the core of the discovery.

“We contribute — myself, my group, my students — to modelling to understand the physics of this process,” said Wojciech Rozmus, an expert in theoretical plasma physics at the U of A in Edmonton.

“We are part of the very close working groups in working with some aspects of this experiment.”

Rozmus, 71, has been studying plasma physics for four decades. He’s twice been a visiting professor at the Lawrence Livermore National Laboratory in California where the breakthrough was made — once in 1997-98 and again in 2011-12.

It was there that for the first time, scientists successfully produced a fusion reaction that generated more energy than it took to trigger, an initial step toward corralling the process that energizes the sun and other stars.

“Simply put, this is one of the most impressive scientific feats of the 21st century,” U.S. Energy Secretary Jennifer Granholm said Tuesday.

“This milestone moves us one significant step closer to the possibility of zero-carbon, abundant fusion energy powering our society.”

Critics cited the shortcomings of the Livermore laboratory’s National Ignition Facility, including the modelling challenges, in expressing their doubts the milestone would ever be reached, said lab director Kim Budil.

“Many said it was not possible — the laser wasn’t energetic enough, the targets would never be precise enough, our modelling and simulation tools were just not up to the task of this complex physics,” Budil said.

“The science and technology challenges on the path to fusion energy are daunting. But making the seemingly impossible possible is when we’re at our very best.”

Fusion, in a nutshell, produces energy and heat by forcing together hydrogen atoms without the radioactive byproducts of nuclear reactions.

The experiment, which Rozmus said first showed exceptional promise back in August 2021, involved firing a barrage of lasers at a cylinder that contained a BB-sized fuel pellet of hydrogen, deuterium and tritium.

The pellet, bombarded by X-rays, vaporized as its nuclei fused in a brief burst of energy — 50 per cent more than had been used to produce it.

Budil said as a result, the prospect of using fusion ignition to produce power on a commercial level is significantly closer than it was before.

“Not six decades, I don’t think, and not five decades, which is what we used to say,” she said.

“I think it’s moving into the foreground, and with concerted effort and investment, a few decades of research on the underlying technologies could put us in a position to build a power plant.”

To avoid being seen as playing favourites, the Lawrence Livermore lab refused Wednesday to speak about specific academic partners. But from the outset, the success was framed by officials as a global team effort.

It was the product of the dedicated work of “countless collaborators” from laboratories, academic institutions and energy agencies from across the U.S. and around the world, said spokesperson Breanna Bishop.

Rozmus said the collaboration had been intensifying in recent years, and may have even received a boost from the COVID-19 pandemic, which fostered the growth of using technology for long-distance teamwork.

“I would say even the pandemic helped us,” he said. “The way we work now, online via Zoom, that exchange of information became a standard form of communicating and it has stayed like that.”

Granholm made the point that the success was a product of U.S. investments in national laboratory facilities and fundamental research. “Tomorrow, we’ll continue to work toward a future that is powered in part by fusion energy,” she said.

It would be nice if the success resulted in Canada making a more concerted effort of its own towards advancing fusion research, Rozmus said.

“Fusion has had a hard time gaining support, partly because it was a prospect which was always 50 years away,” he said. “But now that it’s getting a demonstration of control, the conversation changes dramatically.”

This report by The Canadian Press was first published Dec. 14, 2022.

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Allen nets shutout as Devils burn Oilers 3-0

Published

5 hours ago

November 4, 2024

Anne Joseph

EDMONTON – Jake Allen made 31 saves for his second shutout of the season and 26th of his career as the New Jersey Devils closed out their Western Canadian road trip with a 3-0 victory over the Edmonton Oilers on Monday.

Jesper Bratt had a goal and an assist and Stefan Noesen and Timo Meier also scored for the Devils (8-5-2) who have won three of their last four on the heels on a four-game losing skid.

The Oilers (6-6-1) had their modest two-game winning streak snapped.

Calvin Pickard made 13 stops between the pipes for Edmonton.

TAKEAWAYS

Devils: In addition to his goal, Bratt picked up his 12th assist of the young season to give him nine points in his last eight games and now 15 points overall. Nico Hischier remains in the team lead, picking up an assist of his own to give him 16 points for the campaign. He has a point in all but four games this season.

Oilers: Forward Leon Draisaitl was held pointless after recording six points in his previous two games and nine points in his previous four. Draisaitl usually has strong showings against the Devils, coming into the contest with an eight-game point streak against New Jersey and 11 goals in 17 games.

KEY MOMENT

New Jersey took a 2-0 lead on the power play with 3:26 remaining in the second period as Hischier made a nice feed into the slot to Bratt, who wired his third of the season past Pickard.

KEY RETURN?

Oilers star forward and captain Connor McDavid took part in the optional morning skate for the Oilers, leading to hopes that he may be back sooner rather than later. McDavid has been expected to be out for two to three weeks with an ankle injury suffered during the first shift of last Monday’s loss in Columbus.

OILERS DEAL FOR D-MAN

The Oilers have acquired defenceman Ronnie Attard from the Philadelphia Flyers in exchange for defenceman Ben Gleason.

The 6-foot-3 Attard has spent the past three season in the Flyers organization seeing action in 29 career games. The 25-year-old right-shot defender and Western Michigan University grad was originally selected by Philadelphia in the third round of the 2019 NHL Entry Draft. Attard will report to the Oilers’ AHL affiliate in Bakersfield.

UP NEXT

Devils: Host the Montreal Canadiens on Thursday.

Oilers: Host the Vegas Golden Knights on Wednesday.

This report by The Canadian Press was first published Nov. 4, 2024.

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Mahomes throws 3 TD passes, unbeaten Chiefs beat Buccaneers 30-24 in OT

Published

5 hours ago

November 4, 2024

Anne Joseph

KANSAS CITY, Mo. (AP) — Patrick Mahomes threw for 291 yards and three touchdowns, and Kareem Hunt pounded into the end zone from two yards out in overtime to give the unbeaten Kansas City Chiefs a 30-24 win over the Tampa Bay Buccaneers on Monday night.

DeAndre Hopkins had two touchdown receptions for the Chiefs (8-0), who drove through the rain for two fourth-quarter scores to take a 24-17 lead with 4:17 left. But then Kansas City watched as Baker Mayfield led the Bucs the other way in the final minute, hitting Ryan Miller in the end zone with 27 seconds to go in regulation time.

Tampa Bay (4-5) elected to kick the extra point and force overtime, rather than go for a two-point conversion and the win. And it cost the Buccaneers when Mayfield called tails and the coin flip was heads. Mahomes and the Chiefs took the ball, he was 5-for-5 passing on their drive in overtime, and Hunt finished his 106-yard rushing day with the deciding TD plunge.

Travis Kelce had 14 catches for 100 yards with girlfriend Taylor Swift watching from a suite, and Hopkins finished with eight catches for 86 yards as the Chiefs ran their winning streak to 14 dating to last season. They became the sixth Super Bowl champion to start 8-0 the following season.

Mayfield finished with 200 yards and two TDs passing for the Bucs, who have lost four of their last five.

It was a memorable first half for two players who had been waiting to play in Arrowhead Stadium.

The Bucs’ Rachaad White grew up about 10 minutes away in a tough part of Kansas City, but his family could never afford a ticket for him to see a game. He wound up on a circuitous path through Division II Nebraska-Kearney and a California junior college to Arizona State, where he eventually became of a third-round pick of Tampa Bay in the 2022 draft.

Two year later, White finally got into Arrowhead — and the end zone. He punctuated his seven-yard scoring run in the second quarter, which gave the Bucs a 7-3 lead, by nearly tossing the football into the second deck.

Then it was Hopkins’ turn in his first home game since arriving in Kansas City from a trade with the Titans.

The three-time All-Pro, who already had caught four passes, reeled in a third-down heave from Mahomes amid triple coverage for a 35-yard gain inside the Tampa Bay five-yard line. Three plays later, Mahomes found him in the back of the end zone, and Hopkins celebrated his first TD with the Chiefs with a dance from “Remember the Titans.”

Tampa Bay tried to seize control with consecutive scoring drives to start the second half. The first ended with a TD pass to Cade Otton, the latest tight end to shred the Chiefs, and Chase McLaughlin’s 47-yard field goal gave the Bucs a 17-10 lead.

The Chiefs answered in the fourth quarter. Mahomes marched them through the rain 70 yards for a tying touchdown pass, which he delivered to Samaje Perine while landing awkwardly and tweaking his left ankle, and then threw a laser to Hopkins on third-and-goal from the Buccaneers’ five-yard line to give Kansas City the lead.

Tampa Bay promptly went three-and-out, but its defence got the ball right back, and this time Mayfield calmly led his team down field. His capped the drive with a touchdown throw to Miller — his first career TD catch — with 27 seconds to go, and Tampa Bay elected to play for overtime.

UP NEXT

Buccaneers: Host the San Francisco 49ers on Sunday.

Chiefs: Host the Denver Broncos on Sunday.

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NHL roundup: Kuemper helps visiting Kings shut out Predators 3-0

Published

5 hours ago

November 4, 2024

Anne Joseph

NASHVILLE, Tenn. (AP) — Darcy Kuemper made 16 saves for his first shutout of the season and 32nd overall, helping the Los Angeles Kings beat the Nashville Predators 3-0 on Monday night.

Adrian Kempe had a goal and an assist and Anze Kopitar and Kevin Fiala also scored. The Kings have won two of their last three.

Juuse Saros made 24 saves for the Predators. They are 1-2-1 in their last four.

Kopitar opened the scoring with 6:36 remaining in the opening period. Saros denied the Kings captain’s first shot, but Kopitar collected the rebound below the goal line and banked it off the netminder’s skate.

Fiala, a former Predator, made it 2-0 35 seconds into the third.

The Kings held Nashville to just three third-period shots on goal, the first coming with 3:55 remaining and Saros pulled for an extra attacker.

Elsewhere in the NHL on Monday:

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DEVILS 3 OILERS 0

EDMONTON, Alta. (AP) — Jake Allen made 31 saves for his second shutout of the season and 26th of his NHL career, helping the New Jersey Devils close their western Canadian road trip with a 3-0 victory over the Edmonton Oilers.

Jesper Bratt had a goal and an assist and Stefan Noesen and Timo Meier also scored. The Devils improved to 8-5-2. They have won three of their last four after a four-game skid.

Calvin Pickard made 13 saves for Edmonton. The Oilers had won two straight.

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