Postdoctoral Appointee - Radiation Detection

Sandia National Laboratories

Livermore, CA

Job posting number: #7061518 (Ref:669549)

Posted: October 18, 2019

Job Description

This postdoctoral position is a temporary position for up to one year, which may be renewed at Sandia's discretion up to five additional years. The PhD needs to have been conferred within five years prior to employment. Individuals in postdoctoral positions may bid on regular Sandia positions as internal candidates, and in some cases may be converted to regular career positions during their term if warranted by ongoing operational needs, continuing availability of funds, and satisfactory job performance. : We are seeking a dedicated and ambitious Postdoctoral Appointee to perform duties as a radiation detection scientist. You will conduct research and development in a hardworking, innovative, and fast-paced team environment as well as contribute to multiple projects through software and hardware development for the localization and imaging of radiation emitting materials. Your work will encompass laboratory experiments and testing of devices for specific applications; modeling and simulation of neutron/gamma localizers and imagers; and algorithm development for particle identification and image reconstruction using state-of-the-art facilities and equipment. You will apply your deep technical knowledge of radiation detection techniques to existing programs, as well as have the capability and independence to propose new groundbreaking projects that fall within the scope of Sandia’s mission areas. On any given day, you may be called on to: + Plan, conduct, and execute research and development for Sandia's customers and sponsors; + Conduct research into physical phenomena, develop theories based on observation, experiments, or historical data, and devise methods to apply physical laws and theories; + Develop theories based on observation and experiments; implement and debug models in code and perform verification and validation of the code; + Work with the team of scientists and engineers to develop proposals for new work; + Travel as required for the job.

+ PhD in Nuclear Engineering, Optical Sciences, Nuclear Physics, or relevant discipline; + Demonstrated experience in design optimization of radiation detector systems; + Experience in developing algorithms for radiation imaging or mathematical methods for null hypothesis testing from radiation imaging techniques; + Demonstrated proficiency in Monte Carlo based radiation transport codes.

+ Proven experience in uncertainty quantification of passive radiation imaging techniques; + Proficiency with pulse shape identification algorithms for organic scintillator detectors; + Demonstrated creativity and highly developed problem solving skills; + Excellent verbal and written communication skills and ability to team.

Department Description:

The Radiation and Nuclear Detection Systems department undertakes research and development of ionizing radiation and rare signature detection systems to address broad nuclear security needs in support of various US Government programs. Through internal and external collaborations our department targets applications in nuclear proliferation detection, nuclear non-proliferation, international safeguards, arms control treaty verification, radiological emergency response, and other national security objectives such as explosives detection. We specialize in designing detection systems for the anticipated radiation signature and background for specific applications starting at Technology Readiness Level 1 (basic research) all the way up to 5 (field experiments). Areas of significant experience and expertise include: fission-energy neutron detection and imaging, gamma spectroscopy, anti-neutrino and muon detection, weak source detection techniques, and high-channel-count systems. Radiation transport modeling and simulation is used extensively to understand and verify experimental results and optimize detector design. Data analysis and algorithm development for particle identification and discrimination is conducted.

About Sandia:

Sandia National Laboratories is the nation’s premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: + Challenging work withamazingimpact that contributes to security, peace, and freedom worldwide + Extraordinary co-workers + Some of the best tools, equipment, and research facilities in the world + Career advancement and enrichment opportunities + Flexible schedules, generous vacations,strongmedical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* _World-changing technologies. Life-changing careers._ Learn more about Sandia at: *These benefits vary by job classification.

Security Clearance:

This position does not currently require a Department of Energy (DOE) security clearance. Sandia will conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Furthermore, employees in New Mexico need to pass a U.S. Air Force background screen for access to Kirtland Air Force Base. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause access to be denied or terminated, resulting in the inability to perform the duties assigned and subsequent termination of employment. If hired without a clearance and it subsequently becomes necessary to obtain and maintain one for the position, or you bid on positions that require a clearance, a pre-processing background review may be conducted prior to a required federal background investigation. Applicants for a DOE security clearance need to be U.S. citizens. If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted. Members of the workforce (MOWs) hired at Sandia and will require uncleared access for greater than 179 during their employment, are required to go through the Uncleared Personal Identity Verification (UPIV) process. Access includes physical and/or cyber (logical) access, remote access to any NNSA information technology (IT) systems. UPIV requirements are not applicable to individuals who require a DOE personnel security clearance for the performance of their SNL employment or to foreign nationals. The UPIV process will include the completion of a USAccess Enrollment, SF-85 (Questionnaire for Non-Sensitive Positions) and OF-306 (Declaration of Employment). An unfavorable UPIV determination will result in immediate retrieval of the SNL issued badge, removal of cyber (logical) access and/or removal from SNL subcontract. All MOWs may appeal the unfavorable UPIV determination to DOE/NNSA immediately. If the appeal is unsuccessful, the MOW may try to go through the UPIV process one year after the decision date.

EEO Statement:

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

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