CIS Postdoctoral Scientist

Jefferson Lab; Newport News (VA); On-site; USD 66,000 - 90,000; Full time

Job summary

Jefferson Lab in Newport News, VA seeks a Post Doctoral Fellow to advance high-voltage photoemission and polarized electron sources for cutting-edge experiments. The role focuses on developing photoemission guns, vacuum techniques, and beam diagnostics to support the MOLLER parity-violation experiment.

Applicants should hold a Ph.D. in Physics, Applied Physics, or Electrical Engineering and collaborate across groups to deliver high-quality scientific results.

Qualifications

• Ph.D. required in physics, applied physics, or electrical engineering.
• Expertise in polarized electron sources and/or electron polarimetry.
• Strong written and oral communication skills.
• Proven ability to work effectively in a team environment.

Responsibilities

• Perform analytic, numeric and experimental research in polarized electron source and/or electron polarimetry.
• Develop high voltage photoemission guns and vacuum techniques.
• Characterize photocathodes and beam properties using diagnostic tools.
• Operate and commission equipment at injector test facilities and during shutdowns.
• Support MOLLER experiment beam quality and polarization requirements.

Skills

High-voltage physics

Polarized electron sources

Communication skills

Team collaboration

Education

Ph.D. Physics, Applied Physics, or Electrical Engineering

Job description

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Classification: Post Doctoral Fellow

At Jefferson Lab,you’llchampioncutting-edgescience and operational excellence while shaping the future of discovery. Join us and make your mark - where excellence meets purpose, andgreat mindstrulymatter.

The good-faith pay range for this role is $65, 600 - $90, 300 per year. Actual compensation may vary and may be above the posted range based on factors such as a candidate's skills, experience, education, certifications, and work location.

This is a two-year term position. Company-provided relocation assistance will not be offered for this position.

SURATech will not sponsor an H1B visa for this position.

What your job will be like:

The Center for Injectors and Sources (CIS) is responsible for delivering high average current beams of highly polarized electrons with excellent reliability to CEBAF users. The job involves the development of high voltage photoemission electron guns and low energy electron beam lines, improved ultrahigh and extreme high vacuum techniques, novel photoemission cathodes, sophisticated lasers producing optical beams with radio-frequency time structure, and fundamental understanding of depolarization mechanisms in various semiconductors. A particular emphasis of the job is characterizing and improving the polarized electron source to provide exceptional beam quality necessary for the upcoming MOLLER parity-violation experiment to be successful.

Working alongside scientific and technical staff members in the Center for Injectors and Sources, the incumbent will participate in characterizing spin-polarized photocathodes which operate in today's very high voltage photo-guns. The incumbent will spend much of his/her time in the group's vacuum lab evaluating photocathode device performance using a micro-Mott polarimeter for the spectral characterization of photocathode quantum efficiency and spin-polarization. He/she will also spend significant time at the Upgraded Injector Test Facility and/or Gun Test Stand to commission new equipment, and for performing experiments that shed light on the limitations of photo-gun technologies.

In support of the MOLLER experiment, the incumbent will evaluate materials and processing techniques for producing polarized beam in a 200 kV photo-gun; this work includes development of the radio-frequency gain-switched and frequency-doubled drive lasers used to provide high intensity polarized beams for the MOLLER experiment with small helicity-correlated beam charge and position differences. The incumbent will also assist with operations of the CEBAF photoinjector, including maintenance and commissioning activities during accelerator shutdowns.

In this job you will:

• Perform analytic, numeric and experimental research in polarized electrons source and/or electron polarimetry
• Perform vacuum system design, assembly and generation of ultrahigh or extreme high vacuum.
• Perform independent and collaborative scientific research.
• Communicates scientific results clearly at meetings, workshop and/or conferences.
• Communicates technical and scientific results clearly in logbooks, technical notes and/or peer-reviewed journals

Experience

• Required: none

Education

• Required: Ph.D. Physics, Applied Physics, or Electrical Engineering

Experience and Education Exchange

Education above the minimum may not be substituted for experience. Relevant experience may not be substituted for education.

Knowledge, Skills, and Abilities

• Theoretical and/or experimental expertise in an area of electron emission from materials.
• Able to communicate clearly both orally and in writing.
• Interacts well in a team environment.
• Presents work associated with specific projects at meetings.

About Jefferson Lab

Join a community with a common purpose of solving the most challenging scientific and engineering problems of our time. The Jefferson Lab campusis located insoutheasternVirginiaamidst a vibrant and growing technology community.

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 SURATech, 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.

Total Rewards at Jefferson Lab

At Jefferson Lab, we believe that a comprehensive employee benefits program is an important and meaningful part of the compensation employees receive. Our benefits program includes, but is not limited to:

• Medical, Dental, and Vision Care Plans
• Flexible Spending Accounts
• Paid Time-off and Leave Programs (Paid Parental, vacation, holidays, and sick leave)
• Tuition Assistance, Training and Professional Development Programs
• Live near the waterways of the Chesapeake Bay region with access to nearby beaches, mountains, and all major metropolitan centers on the East Coast

SURATech, LLC manages and operates the Thomas Jefferson National Accelerator Facility (Jefferson Lab). SURATech is an Equal Opportunity Employer.

SURATech is committed to providing reasonable accommodation for people with disabilities (unless doing so will result in an undue hardship). If you need a reasonable accommodation for any part of the employment process, please send an e-mail to [e-mail] or contact Human Resources by calling [phone] and selecting option 1 between 8 am - 5 pm EST to provide the nature of your request.

Employment with SURATech is conditional upon DOE approval if at any time during your employment you are participating in a Foreign Government Talent Recruitment Program or Affiliated activity. Generally, such programs/activities include any foreign-state-sponsored attempt to acquire U.S.-funded scientific research through programs run or funded by the government that target scientists, engineers, students, academics, researchers, and entrepreneurs of all nationalities working or educated in the United States. This includes positions or appointments, both domestic and foreign, titled academic, professional, or institutional appointments whether or not remuneration is received and whether full-time, part-time or voluntary.

THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY IS MANAGED BY SURATech, LLC FOR THE U.S. DEPARTMENT OF ENERGY | jlab.org | 12000 Jefferson Avenue, Newport News, VA