coming soon
Given new experiments starting up and on the horizon, and the vastly increasing data volumes even at small experiments, the Nuclear Physics community has in recent years been thinking about the next generation of data processing and analysis workflows that will maximize the science output.
Thomas Jefferson National Accelerator Facility (Jefferson Lab) provides scientists worldwide the lab’s unique particle accelerator, known as the Continuous Electron Beam Accelerator Facility (CEBAF), to probe the most basic building blocks of matter by conducting research at the frontiers of nuclear physics (NP) and related disciplines. In addition, the lab capitalizes on its unique technologies and expertise to perform advanced computing and applied research with industry and university partners, and provides programs designed to help educate the next generation in science and technology.
Majority of computational science activities in Jefferson Lab focus on these areas : large scale and numerical intensive Lattice Quantum Chromodynamics (LQCD) calculations, modeling and simulation of accelerators and the experiment detectors, fast data acquisition and streaming data readout, high throughput computing for data analysis of experimental data, and large scale distributed data storage and management.
Many Jefferson Lab scientists and staffs lead or actively participate the computational efforts in the above areas. Among those are computer/computational scientists and computer professionals from newly formed computational sciences and technology division (CST), physicists from physics division and the Center for Theoretical and Computational Physics, and accelerator physicists from Center for Advanced Studies of Accelerators (CASA). In addition, collaborations with universities and industrial partners further research and development in computational science.
Jefferson Lab maintains various state of art high performance computing resources onsite. CSGF students will utilize these resources to carried out their researches in the specific areas described below:
CASA and Jefferson Lab SRF institute focus on advanced algorithms, such as fast multipole methods, for multiparticle accelerator dynamics simulations, artificial intelligence (AI) and machine learning (ML) applied to superconducting RF (SRF) accelerator operations, and integrated large and multi-scale modeling of SRF accelerator structures. These areas will be an essential part of a national strategy to optimize DOE operational facility investments, and to strengthen Jefferson Lab’s core competency of world-leading SRF advanced design and facility operations. Especially, current active simulation projects
like electron cooling, intra-beam scattering, and coherent synchrotron radiation present diverse research domains ranging from numerical algorithms development to parallel computing.
With tremendous advancement in micro-electronics and computing technologies in the last decade, many nuclear physics and high-energy physics experiments are taking advantage of these developments by upgrading their existing triggered data acquisition to a streaming readout model (SRO) , whereby detectors are continuously read out in parallel streams of data. An SRO system, which could handle up to 100 Gb/s data throughput, provides a pipelined data analysis model to nuclear physics experiments where data are analyzed and processed in near real-time fashion. Jefferson Lab is leading a collaborative research and development effort to devise SRO systems not only for CEBAF 12GeV experiments but also for the upcoming EIC facility. SRO development offers CSGF students some exciting research areas such as network protocol design, high speed data communication, high performance data compression and distributed computing.
Analysis of data from modern particle physics experiments uses technically advanced programming and computing techniques to handle the large volumes of data. One not only needs to understand aspects of parallel programming using modern languages such as C/C++, Java, and Python, but also must incorporate knowledge of experimental techniques involving error propagation and estimation in order to properly interpret the results. Aspects of this range from writing a single algorithm used in event reconstruction, to using the collection of algorithms written by others, to managing campaigns at HPC facilities that apply these algorithms to large datasets. Detector calibrations and final physics analysis are also significant parts of the analysis chain. CSGF students could participate in any of these areas.
Rapid developments in hardware computational power and an ever increasing set of data has lead to explosive growth in machine learning techniques, specifically deep learning techniques. These techniques threaten to change just about every facet of modern life and nuclear physics is no exception. At Jefferson Lab machine learning is being developed for every step in the physics workflow. To deliver beam to the experimental halls the accelerator relies on radio frequency (RF) cavities to accelerate the electrons. Occasionally these cavities, of which there are over 400 in operation around the accelerator, fault which disrupts the delivery of the beam to experiments. To quickly identify and diagnose cavity faults A.I. is being developed and deployed. Experiments themselves are developing and/or deploying A.I. to monitor detector performance, decide what data to keep, reconstruct detector responses, simulate the detectors, and even to analyze collected data. With the active development of machine learning tools and techniques Jefferson Lab hopes to drive nuclear physics research forward, enabling physicists to more quickly obtain and analyze high quality data.
Computational Sciences and Technology (CST) Division
In light of the evergrowing role that Software & Computing play in High Energy Physics, Nuclear Physics, and related fields, Brookhaven National Laboratory, the HEP Software Foundation, and Jefferson Lab are organizing the Software & Computing Round Table to foster the interplay of computing and science. The monthly round table forum aims for knowledge transfer and to encourage common projects within our scientific community.
Accelerate your career with a new role at the nation's newest national laboratory. Here you can be part of a team exploring the building blocks of matter and lay the ground work for scientific discoveries that will reshape our understanding of the atomic nucleus. Join a community with a common purpose of solving the most challenging scientific and engineering problems of our time.
A career at Jefferson Lab is more than a job. You will be part of “big science” and work alongside top scientists and engineers from around the world unlocking the secrets of our visible universe. Managed by Jefferson Science Associates, LLC; Thomas Jefferson National Accelerator Facility is entering an exciting period of mission growth and is seeking new team members ready to apply their skills and passion to have an impact. You could call it work, or you could call it a mission. We call it a challenge. We do things that will change the world.
At Jefferson Lab we believe in giving back to our community and encouraging the next generation of scientists and engineers. Our staff reaches out to students to advance awareness and appreciation of the range of research carried out within the DOE national laboratory system, to increase interest in STEM careers for women and minorities, and to encourage everyone to become a part of the next-generation STEM workforce. We are recognized for our innovative programs like:
1,500 students from 15 Title I schools engage in the Becoming Enthusiastic About Math and Science (BEAMS) program at the lab each school year.
60 teachers are enrolled in the Jefferson Science Associates Activities for Teachers (JSAT) program at the lab inspiring 9,000 students annually.
24 high school students have internships and 34 college students have mentorships at the lab.
From organizing stages and stanzas to publishing agendas and books, poet/admin uses gift of the pen
Stephanie Tysor has a special connection with pen and paper; they are always within arm’s reach. As the new division administrator of the Experimental Nuclear Physics Division, Tysor needs to be prepared to edit her task list and jot notes for the many meetings, connections and events she supports.
“I train the Physics admins and support the head of the physics division as her interface with her team,” she summarizes. “For example, in our workshops, titles of talks change quickly. I have to be able to jump into our agenda software and make last-minute changes, while at the same time, I may have to work with other departments to make sure catering and hotel rooms are all taken care of.”
Tysor says she is also always ready to jump in to support members of her division as needed. From one day to the next, she never knows when her organizational expertise and problem-solving skills will be needed.
“Maybe one of our physicists is traveling, and a flight gets cancelled. I might need to help rebook it or find a solution,” she says. “I’m like an air traffic controller for the physics department. I have to be focused and organized.”
There’s another reason Tysor stays in constant contact with her tools of the trade: She is a published poet who relies on pen and paper to provide boundaries for herself to steady the stream of creative inspiration that comes to her throughout the day.
“I use my journal to help me compartmentalize,” she explains. “I can focus in on my job and be completely focused on my job, and if anything pops up or someone makes a comment to me that inspires me creatively, I just jot a phrase or a couple of words down. I will return to that once I get off of work—and I have a slew of things to revisit from each day.”
Making order of her notes
Tysor has been refining her notation methods since she began journaling in middle school. Now, having been at the lab since 2007, she has accumulated shelves full of creative output, including “Love’s Seasons,” a book of poetry she co-authored with a childhood friend and poet Tremayne Moore.
As Tysor makes notations in her journal, she uses a code to categorize the type of thought and corresponding action she plans to take with it.
“If I circled a thought, I know I immediately want to return to it,” she explains. “If it has a star next to it, I know I had a train of thought and wanted to delve more into it, but I’m not sure where I wanted to go.”
Unlike her Jefferson Lab portfolio of work, Tysor admits that her journals come across as “messy.”
“I have an instinct to organize, but my journal is cluttered. If anyone else looked at it, they would think it’s messy,” she laughs. “Some pages are bulleted and nice and concise, and some pages have writing in the margins and circles and stars. It’s chaotic organization, and I’m the only one who would understand it.”
With the same feverish energy she puts into her journaling and poetry, Tysor accumulates notes relating to her work at the lab.
“If I’m not thinking of my writing in some form or fashion, my notes are about something I need to take care of at work,” she says. “I just don’t think that I can turn that part of my brain off. My mind is constantly going with new ideas.”
What does one do with a bookshelf filled with notebooks? In Tysor’s case, she has to confront some challenging decisions.
“Everything I write is written with the thought that this is something that I could possibly publish and put out there for others to read,” she says. “After a few years, after I’ve gotten all the information I need from my journals, I tend to shred them.”
After all, Tysor notes, she is also passionate about reading and needs space for her ever-expanding collection of books.
“I’m an avid reader, so I have books on top of books. I constantly have to decide whether I want to keep the books or the journals.”
Tysor read 133 books in 2022 alone, an achievement that calls upon her to further refine her own works to make room for her next book, which, she says, may soon be another from her own pen.
By Carrie Rogers
The Jefferson Lab campus is located in southeastern Virginia amidst a vibrant and growing technology community with deep historical roots that date back to the founding of our nation. Staff members can live on or near the waterways of the Chesapeake Bay region or find peace in the deeply wooded coastal plain. You will have easy access to nearby beaches, mountains, and all major metropolitan centers along the United States east coast.
To learn more about the region and its museums, wineries, parks, zoos and more, visit the Virginia tourism page, Virginia is for Lovers.
To learn more about life at Jefferson Lab, click here.
We support our inventors! The lab provides resources to employees for the development of patented technology -- with over 180 awarded to date! Those looking to obtain patent coverage for their newly developed technologies and inventions while working at the lab are supported and mentored by technology experts, from its discovery to its applied commercialization, including opportunities for monetary awards and royalty sharing. Learn more about our patents and technologies here.
"Today, we use a lot of those same teamwork traits [learned from the military] on a daily basis as we're all working toward similar goals here at the lab in better understanding nuclei!"
“Every time we solve problems, we contribute. It’s exciting times for new results and discoveries.”
“Here at the lab you get to see what you’ve worked on. You can hold it in your hands. It’s rewarding to know that you’ve played a part in helping the machine to be successful.”
“Generally, the mechanical engineers at the lab support the physicists. The physicists have the big ideas about how to support new science, and the engineers figure out how to make that happen.”
"When I’m 95 years old, I hope I will be one of those people who worked in the background to affect other people’s lives for the better."
Jefferson Science Associates, LLC manages and operates the Thomas Jefferson National Accelerator Facility. Jefferson Science Associates/Jefferson Lab is an Equal Opportunity and Affirmative Action Employer and does not discriminate in hiring or employment on the basis of race, color, religion, ethnicity, sex, sexual orientation, gender identity, national origin, ancestry, age, disability, or veteran status or on any other basis prohibited by federal, state, or local law.
If you need a reasonable accommodation for any part of the employment process, please send an e-mail to recruiting @jlab.org or call (757) 269-7100 between 8 am – 5 pm EST to provide the nature of your request.
JSA is an E-Verify Employer
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A Proud V3-Certified Company
JSA/Jefferson Lab values the skills, experience and expertise veterans can offer due to the myriad of experiences, skill sets and knowledge service members achieve during their years of service. The organization is committed to recruiting, hiring, training and retaining veterans, and its ongoing efforts has earned JSA/Jefferson Lab the Virginia Values Veterans (V3) certification, awarded by the Commonwealth of Virginia.
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Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock,
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Web server support. Work with the CST division to maintain, update and upgrade existing file servers that interact with the lab’s websites. Submit Service Now tickets and follow up on them when web servers need upgrades or
