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  • richardmitnick 12:16 pm on August 27, 2012 Permalink | Reply
    Tags: , , Proton Accelerators   

    From Fermilab Today: “RFQ system to take Fermilab into the Intensity Frontier” 

    Fermilab is an enduring source of strength for the US contribution to scientific research world wide.

    Monday, Aug. 27, 2012
    Joseph Piergrossi

    “On Wednesday morning, employees from across Fermilab assembled in the Linac Gallery to observe the decommissioning of the Cockcroft-Walton generators, which provided beam to the lab’s accelerators for 40 years. At the beginning of September, members of the Proton Source Department will begin installing the Cockcroft-Waltons’ replacement, the radio-frequency quadrupole (RFQ)* system.

    an RFQ at TRIUMF

    The RFQ system will perform the same function as the Cockcroft-Walton generators but in a much smaller space and with fewer parts. Whereas the generators needed two massive rooms to operate, the RFQ is only about 3.5 meters long. In that space, it will ramp up the energy of hydrogen ions to 750 keV for entrance into the Linac, just as the Cockcroft-Walton generators did.

    The PIP (Proton Improvement Plan)team looked to Brookhaven National Laboratory’s RFQ system for inspiration. AD scientist C.Y. Tan, who led the design effort, based the Fermilab design on the BNL design, adding several unique features.”

    See the full article here.

    *This is a very unfortunate name. The acronym, “RFQ”, all over the industrial/commercial world, means “Request for Quotation”, a common term for bids.

    Fermi National Accelerator Laboratory (Fermilab), located just outside Batavia, Illinois, near Chicago, is a US Department of Energy national laboratory specializing in high-energy particle physics.

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  • richardmitnick 12:15 pm on June 15, 2012 Permalink | Reply
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    From Fermilab Today: “Project X workshop to develop future experiment framework “ 

    Fermilab is an enduring source of strength for the US contribution to scientific research world wide.

    Friday, June 15, 2012
    Joseph Piergrossi

    From June 14 to 23, the Project X Physics Study, hosted at Fermilab, will put particle physicists from around the United States and the globe to work on strategizing their future experiments using Fermilab’s planned multi-megawatt proton facility, Project X.

    Schematic view of Project X (Fermilab graphic)

    Project X is currently a three-stage project that will produce the most intense proton beams in the world. As the flagship endeavor of the Intensity Frontier, where Fermilab hopes to focus most of its future experiments, Project X would enhance currently planned experiments using neutrinos, muons and kaons and create possibilities for new studies.

    But before that can happen, the Project X team needs to develop a plan they can present at next year’s Snowmass conference, a meeting of members of the high-energy physics community hosted by the American Physical Society Division of Particles and Fields. That is the goal of this workshop, said Project X scientist and workshop co-chair Bob Tschirhart.”

    See the full article here.

    Fermi National Accelerator Laboratory (Fermilab), located just outside Batavia, Illinois, near Chicago, is a US Department of Energy national laboratory specializing in high-energy particle physics.

  • richardmitnick 10:47 am on June 12, 2012 Permalink | Reply
    Tags: , , , , , Proton Accelerators   

    From Brookhaven Lab: “The Glue that Binds Us All” 

    A QGP is formed at the collision point of two relativistically accelerated gold ions in the center of the STAR detector at the Relativistic Heavy Ion Collider [RHIC] at the Brookhaven National Laboratory.
    Visit Brookhaven National Laboratory here.

    How an electron-ion collider could help unravel what makes matter stick together and what puts the spin on protons

    “RHIC, the Relativistic Heavy Ion Collider at Brookhaven Lab, found it first: a ‘perfect’ liquid of strongly interacting quarks and gluons — a quark-gluon plasma (QGP) — produced by slamming heavy ions together at close to the speed of light. The fact that the QGP produced in these particle smashups was a liquid and not the expected gas, and that it flowed like a nearly frictionless fluid, took the physics world by surprise. These findings, now confirmed by heavy-ion experiments at the Large Hadron Collider (LHC) in Europe, have raised compelling new questions about the nature of matter and the strong force that holds the visible universe together.

    This animation shows the strength of the gluon force field between a quark (at the center of the images) and an anti-quark, which grows as the energy of the nucleus increases. At low boost energies, the force fields are spread out (shown by larger “blobs”) and are comparable to the “strong” force that binds quarks together in the proton. At higher boost energies, force field fluctuations are incredibly strong — 10 times greater than the typical strong force — and localized at much shorter distances than the proton size. These “higher resolution” snapshots are cleaner to interpret than those at low boost energies and provide important clues to figuring out the nature of the glue binding together visible matter in the universe.

    Similarly, searches for the source of “missing” proton spin at RHIC have opened a deeper mystery: So far, it’s nowhere to be found.

    To probe these and other puzzles, nuclear physicists would like to build a new machine: an electron-ion collider (EIC) designed to shine a very bright “light” on both protons and heavy ions to reveal their inner secrets.

    ‘An electron-ion collider would be the brightest, highest-intensity femtoscope to shine on the structure of matter,’ said Brookhaven theoretical physicist Raju Venugopalan, referring to its ability to discern structures at the scale of femtometers — that’s 10-15 meters, a millionth of a nanometer, or a millionth of a billionth of a meter!

    ‘Snapshots’ of matter at that scale over a wide range of energies would offer deeper insight into the substructure of the nucleus, its constituents, and particularly its smallest components, the quarks and gluons and how they interact.

    ‘Increasingly, it’s looking as if gluons and their interactions may hold the keys to many of our puzzles,’ Venugopalan said. An electron-ion collider would be the ideal tool for gazing at the ‘glue’ under conditions where scientists believe that it completely dominates the structure of neutrons, protons, and nuclei.

    The particle tracks observed in RHIC’s detectors (extreme right) contain fingerprints or clues that reflect the conditions very early in heavy ion collisions, when gluons in the colliding ions were just starting to interact. This is somewhat analogous to the way the structure we see in the universe today is a reflection of structural aspects “frozen out” very early in the history of the universe (left). In each frame, time runs from left to right, but over a span of 13.7 billion years in the left frame and only billionths of a second in the right frame. Scientists can learn a lot about these early conditions by looking back, but they’d also like to probe the earliest stage of ion collisions directly. An electron-ion collider would make that possible.

    Glue holds the key.”.

    That last line, “Glue holds the key’, is the lead for the rest of this very interesting article. See the full article here.

    One of ten national laboratories overseen and primarily funded by the Office of Science of the U.S. Department of Energy (DOE), Brookhaven National Laboratory conducts research in the physical, biomedical, and environmental sciences, as well as in energy technologies and national security. Brookhaven Lab also builds and operates major scientific facilities available to university, industry and government researchers. Brookhaven is operated and managed for DOE’s Office of Science by Brookhaven Science Associates, a limited-liability company founded by Stony Brook University, the largest academic user of Laboratory facilities, and Battelle, a nonprofit, applied science and technology organization.

  • richardmitnick 11:09 am on April 30, 2012 Permalink | Reply
    Tags: , , , , , , Proton Accelerators   

    From Fermilab Today: “Proton beam upgrade team springs into action this week” 

    Fermilab continues to be a great source of strength in the U.S. Basic Research Community.

    “Technicians and engineers have a lot of work ahead as the beam line and accelerator complex is revamped to sustain a faster-pulsed, more intense proton beam. The 11-month long shutdown of the beam line for upgrades begins today.

    ‘This is going to be the most work done on the beam line and its supporting infrastructure since the main injector was constructed in the mid-1990s,’ said Cons Gattuso, who is responsible for coordinating the upgrades during the shutdown. ‘We have a lot of work to do, and we’re eager to get started.’

    The upgrades will prepare the beam line for the NOvA experiment, as well as experiments like Mu2e and g-2, which require more protons than the accelerator complex and beam line were originally configured to create and sustain.

    This Fermilab Accelerator Complex Illustration shows the upgrade plan. Photo: Reidar Hahn

    ‘In the current set up, the main injector accumulates the protons, bunches them and ramps up their energy, Gattuso said. ‘In the new set up, all the accumulating, batching and processing will occur in the recycler, which will then deliver the ready-to-go protons packets to the main injector. Metaphorically speaking, it’s like switching from retail to whole sale—we’re outsourcing the boxing and packaging work to the recycler so that we can more-efficiently disseminate the pre-packed protons from the main injector to the rest of the accelerator complex.’”

    See the full and exciting article here.

  • richardmitnick 11:17 am on January 17, 2012 Permalink | Reply
    Tags: , , , Proton Accelerators   

    From Fermilab Today: “Proton Accelerators for Science and Innovation” 

    Fermilab is an enduring source of strength for the US contribution to scientific research world wide.

    John Womersly, CEO of the Science and Technology Facilities Council (STFC), and Fermilab Director Pier Oddone signed a letter of intent outlining the goals of the collaboration over the next five years. Photo: Reidar Hahn

    “Last week we hosted the US-UK Workshop on Proton Accelerators for Science and Innovation. The workshop brought together scientists from the United States and the United Kingdom who are working on high-intensity proton accelerators across a variety of fronts. The meeting included not only the developers of high-intensity accelerators but also the experimental users and those involved in the applications of such accelerators beyond particle physics. At the end of the conference, John Womersly, CEO of the UK’s Science and Technology Facilities Council, and I signed a letter of intent specifying the joint goals and activities of our collaboration for the next five years. We plan to have another workshop in about a year to review progress and explore additional areas of collaboration.

    Our collaboration with scientists from the United Kingdom in the area of high-intensity proton accelerators is already well established. We have a common interest in muon accelerators, both in connection with neutrino factories and muon colliders. Both of these future projects require multi-megawatt beams of protons to produce the secondary muons that are accelerated. We collaborate on the International Muon Ionization Cooling Experiment at the Rutherford Appleton Laboratory. MICE is the first muon cooling experiment and an essential step in the road to neutrino factories and muon colliders. We also collaborate on the International Scoping Study for neutrino factories.

    See the full post here.

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