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NNSA Supplemental </em><i><a href="https://directives.nnsa.doe.gov/supplemental-directive/sd-0206-0002" id="LPlnk523380">Directive 206.2 </a></i><em>. </em><em>Please note t

Job Information

Los Alamos National Laboratory Experimental Low-Temperature Detector Postdoctoral Research Associate in Los Alamos, New Mexico

What You Will Do

We are seeking highly motivated and technically skilled postdoctoral research associates to join Los Alamos National Laboratory’s (LANL’s) Low-Temperature Detector (LTD) Research and Development (R&D) team. Our focus is on the development of new analytical instruments and methods for precision laboratory analysis of nuclear materials using ultra-high-resolution X-ray, gamma-ray, and decay energy spectroscopy. The LTD Team works on LTD-based systems for basic research, international nuclear safeguards, and national security. Core technologies include large arrays of transition-edge sensor (TES) microcalorimeters using microwave SQUID multiplexing readout and cryostat systems operated below 0.1 K.

A major goal is to significantly increase the technology readiness level of microcalorimeter-based measurements and quantitative analysis. Our program is working to deliver complete analytical instruments that produce calibrated spectra and spectral images to users. Special emphasis is needed in data processing algorithm development, quantitative spectral analysis, uncertainty quantification, and implementation of these components in user-friendly software.

What You Need

Minimum Job Requirements:

  • Demonstrated experience conducting experimental R&D in physical science or engineering.

  • Demonstrated experience documenting and reporting on technical work, for example through written plans, proposals, reports, papers, articles, or theses.

  • Demonstrated experience showing excellent communication skills, written and oral, formal and informal.

  • Demonstrated experience working both independently and as part of team.

  • Demonstrated experience showing initiative and follow-through in technical areas of responsibility.

Desired Qualifications:

  • Demonstrated experience and understanding of data processing algorithm development, quantitative spectral analysis, and uncertainty quantification

  • Expertise in software development for scientific computing or instrument control, especially in Python

  • Demonstrated experience and in-depth understanding of high-precision quantitative measurements and uncertainty analysis for physical science, analytical chemistry, engineering, or nuclear safeguards.

  • Demonstrated experience with and understanding of ionizing radiation detection and measurement and hardware systems for operation at low temperature

  • Demonstrated experience and in-depth understanding of x-ray spectroscopy. For example, experience in one or more techniques like x-ray absorption spectroscopy (XAS), x-ray emission spectroscopy (XES), x-ray fluorescence spectroscopy (XRF).

  • Demonstrated experience and in-depth understanding of gamma-ray spectroscopy, especially for the quantitative analysis of radioactive or nuclear materials composition.

  • Demonstrated experience and in-depth understanding of physical-science or engineering measurement systems with thousands of channels, pixels, or sensors.

Position does not require a security clearance. However, ability to obtain and maintain a Q clearance is desirable.

Education: A Ph.D. in experimental physics or closely related discipline, earned within the last five years.

Note to Applicants:

For full consideration, applicants must submit a comprehensive cover letter that addresses their qualifications for the position and how their expertise fulfills the key requirements. They should also send a CV, publication list, a brief statement of research interests, and a list of three references (including phone numbers and e-mail addresses) to Mark Croce at mpcroce@lanl.gov. For further technical information, please contact Mark Croce at 505-665-2635.

Candidates may be considered for a Director's Postdoc Fellowship and outstanding candidates may be considered for the prestigious Richard P. Feynman, Darleane Christian Hoffman, J. Robert Oppenheimer, or Frederick Reines Distinguished Postdoc Fellowships.

Where You Will Work

Los Alamos National Laboratory (LANL)

Located in northern New Mexico, Los Alamos National Laboratory (LANL) is a multidisciplinary research institution engaged in strategic science on behalf of national security. LANL enhances national security of the United States by ensuring the safety and reliability of the U.S. nuclear stockpile, developing technologies to reduce threats from weapons of mass destruction, and solving problems related to energy, environment, infrastructure, health, and global security concerns.

NEN-1 works to safeguard nuclear materials by developing techniques and systems for nondestructive assay of nuclear and hazardous material. Applications include nuclear materials control and accountability for domestic DOE nuclear facilities, nuclear waste disposal, material stabilization efforts, and international nonproliferation efforts.

NEN-1 instrumentation and analysis technology measures nuclear materials by detecting and analyzing the neutrons, gamma rays, or heat or other signatures given off by nuclear material.

NEN-1 instrument development begins with conceptual research and physics and proceeds through engineering to an industrial-quality, finished instrument.

Our generous benefits package includes:

§ PPO or High Deductible medical insurance with the same large nationwide network

§ Dental and vision insurance

§ Free basic life and disability insurance

§ Paid maternity and parental leave

§ Award-winning 401(k) (6% matching plus 3.5% annually)

§ Learning opportunities and tuition assistance

§ Flexible schedules and time off (paid sick, vacation, and holidays)

§ Onsite gyms and wellness programs

§ Extensive relocation packages (outside a 50 mile radius)

Additional Details

Directive 206.2 - Employment with Triad requires a favorable decision by NNSA indicating employee is suitable under NNSA Supplemental Directive 206.2 . Please note that this requirement applies only to citizens of the United States. Foreign nationals are subject to a similar requirement under DOE Order 142.3A.

Clearance: Position does not require a security clearance. However, ability to obtain and maintain a Q clearance is desirable. Selected candidates will be subject to drug testing and other pre-employment background checks.

New-Employment Drug Test: The Laboratory requires successful applicants to complete a new-employment drug test and maintains a substance abuse policy that includes random drug testing.

Equal Opportunity: Los Alamos National Laboratory is an equal opportunity employer and supports a diverse and inclusive workforce. All employment practices are based on qualification and merit, without regards to race, color, national origin, ancestry, religion, age, sex, gender identity, sexual orientation or preference, marital status or spousal affiliation, physical or mental disability, medical conditions, pregnancy, status as a protected veteran, genetic information, or citizenship within the limits imposed by federal laws and regulations. The Laboratory is also committed to making our workplace accessible to individuals with disabilities and will provide reasonable accommodations, upon request, for individuals to participate in the application and hiring process. To request such an accommodation, please send an email to applyhelp@lanl.gov or call 1-505-665-4444 option 1.

Appointment Type



Vacancy Name: IRC86291
Organization Name NEN-1/Nuclear Engineering and Nonproliferation, Safeguards Science and Technology
Minimum Salary
Maximum Salary
Req ID: IRC86291
Category: Postdoc