Physicist/Scientist- X-Ray Source Modeling

for prose. We need to parse the posting. Key sections: - Who We Are (description) - What We Offer (salary, location, supportive work culture, benefits) - Role Summary (physics modeling description) - Responsibilities (list of bullet points) - Required (qualifications) - Preferred (list) - Business Expertise, Leadership, Problem Solving, Impact, Interpersonal Skills (these seem like competencies; could be grouped under a "Competencies" section? But they are separate bullet-like statements. Might treat as a list under a heading like "Core Competencies". However rule: include a section ONLY when posting has real, specific content for it. These are specific statements. Could combine into a section "Competencies" with ul list. - Additional Information (Time Type, Employee Type, Travel, Relocation Eligible, salary note, bonus/stock award, etc.) This includes substantive info: Time Type: Full time, Employee Type: Assignee / Regular, Travel: Yes, 10% of the Time, Relocation Eligible: Yes, plus note about salary based on factors, bonus/stock award. Should we create a section "Additional Information"? Could be "Details". But we need headings from allowed list: About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule. The instructions: use

for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule). It says e.g., meaning those are examples, not exhaustive? It says use

for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule). Likely we should use those headings where appropriate. But we can also use other headings? The instruction: "use

for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule)." It suggests we should use those headings for sections. Probably we should map content to those headings. We have: - About the role: could be "Who We Are" and "Role Summary". Might combine. - Responsibilities: list. - Requirements: Required qualifications. - Qualifications: maybe Preferred? Or Skills? Could treat "Preferred" as Skills. - Benefits: we have benefits mention: supportive work culture, learning, benefits package, health and wellbeing, programs, etc. Also mention "comprehensive benefits package". Could create Benefits section. - Pay: we have salary range $120,000 - $165,000. Also note about bonus/stock award. So Pay section. - Schedule: we have Time Type: Full time, Travel 10%, Relocation Eligible: Yes. Could be Schedule section. We must not create sections with filler like "commensurate with experience". We have actual specifics. We must not repeat job title. We must not include Job ID/requisition numbers. We must remove boilerplate: EEO, legal, accessibility contact, etc. Also remove "Visit our Careers website to learn more." and "Learn more about our benefits." maybe considered boilerplate? It's a call to action; could be considered application instruction? Might be removed. Also "Apply" instructions not present. We must preserve all substantive information. Thus produce HTML:

About the role

Applied Materials is the global leader in materials science and engineering solutions that are at the foundation of virtually every new semiconductor chip and advanced display in the world. The equipment that we create and service is essential to advancing AI and accelerating the commercialization of next-generation semiconductor chips. Join us and push the boundaries of materials science and engineering in a company at the foundation of the electronics industry. The work we do together advances the world’s technology.

Own the physics modeling that sets the performance limits of our X-ray sources: electron optics from cathode to target, thermal behavior of components under high electrical power density, and X-ray generation and transport through to the detector. You will be the person the team trusts to say what a design will do before it is built, and to say how confident you are.

Responsibilities

• Simulate electron optics end to end: thermionic emission, space-charge-limited transport, focusing and aberration, deflection, and spot formation in realistic geometry with realistic applied fields.
• Build coupled electrothermal models of beam power deposition on targets, apertures, and grids: conjugate heat transfer, radiative exchange, transient and duty-cycled loading, thermally driven distortion, and the feedback of that distortion onto beam and spot performance.
• Model X-ray generation and transport: bremsstrahlung and characteristic emission yield from transmission and reflection targets, self-absorption in target and substrate, spectral shaping by filtration and windows, downstream optics, and detector response.
• Quantify and communicate uncertainty: convergence and mesh studies, sensitivity to material property data and geometric tolerance, and an explicit statement of what each model can and cannot predict.
• Design the experiments that test the models. Identify which measurable actually discriminates between competing hypotheses, then work with the lab to execute and interpret.
• Translate sensitivity results into design and manufacturing decisions: drawing tolerances, alignment budgets, process windows.
• Script and version simulation workflows so parametric studies are reproducible and re-runnable by someone else.
• Contribute to technical customer engagements.
• Mentor junior physicists and engineers in modeling practice, including the habit of validating before believing.

Requirements

• MS or PhD in physics, applied physics, EE, ME, nuclear engineering, or a related field, plus roughly 5+ years applying simulation to physical hardware.
• Demonstrated ownership of at least two of: charged particle optics, thermal and structural analysis materials under high thermal load, X-ray generation and optics.
• Fluency in finite element methods and their limits, plus working knowledge of at least one other relevant numerical approach: boundary element, particle-in-cell, Monte Carlo radiation transport, or ray tracing.
• Multiphysics tools (COMSOL, Opera, CST, ANSYS, Lorentz, FEniCS, or comparable), driven through their scripting interfaces rather than the GUI alone.
• Python, C, or C++ for pre- and post-processing, data reduction, and optimization loops. Version control as a default habit.
• A track record of comparing model to measurement, finding them in disagreement, and diagnosing why.

Skills

• Monte Carlo radiation transport (Geant4/TOPAS, PENELOPE, EGSnrc) for electron-target interaction, spectrum, and dose.
• X-ray optics simulation (SHADOW/OASYS, XRT, McXtrace, SRW) and dynamical diffraction calculation for crystal optics.
• Cathode and emission physics: dispenser cathodes, LaB₆ or CeB₆, field emission, lifetime and poisoning mechanisms.
• High-vacuum practice: outgassing, thermal management across brazed and welded joints, contact conductance, high-voltage holdoff and breakdown.
• Adjacent-field background: accelerator or beamline physics, electron microscopy, vacuum electronics (TWT, klystron, magnetron), medical or industrial X-ray tubes, e-beam lithography, semiconductor metrology.
• Design of experiments, numerical optimization, surrogate or reduced-order modeling.
• Comfort working from mechanical CAD, including defeaturing and model prep.

Benefits

You’ll benefit from a supportive work culture that encourages you to learn, develop, and grow your career as you take on challenges and drive innovative solutions for our customers. We empower our team to push the boundaries of what is possible—while learning every day in a supportive leading global company. At Applied Materials, we care about the health and wellbeing of our employees. We’re committed to providing programs and support that encourage personal and professional growth and care for you at work, at home, or wherever you may go.

Pay

Salary: $120,000.00 - $165,000.00. The salary offered to a selected candidate will be based on multiple factors including location, hire grade, job-related knowledge, skills, experience, and with consideration of internal equity of our current team members. In addition to a comprehensive benefits package, candidates may be eligible for other forms of compensation such as participation in a bonus and a stock award program, as applicable.

Schedule

Time Type: Full time. Employee Type: Assignee / Regular. Travel: Yes, 10% of the Time. Relocation Eligible: Yes.

for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule)." It may be interpreted that we should use those headings where appropriate, but we could also add other headings if needed. However the instruction also says "Prefer a few substantive sections over many thin ones." So maybe we should integrate those competency statements into existing sections like Skills or Requirements. They are more like behavioral competencies. Could be placed under a "Skills" section as well. But we already used Skills for technical preferred qualifications. Could we add them under Skills as bullet points? Might be okay. But we must not invent sections. However we could add a subsection under Skills for "Behavioral Competencies". But that would be adding extra detail not originally separate. Might be okay to keep them separate under a heading like "Core Competencies". But the instruction didn't list that as example; but it didn't forbid. However to be safe, maybe we should incorporate them into an existing section like "Skills" or "Requirements". Since they are about leadership, problem solving, impact, interpersonal skills, business expertise. Could be placed under a "Skills" section as soft skills. Let's add them to Skills section as additional bullets. Thus modify Skills

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