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Internal Dosimetrist

Job ID JR100927 Date posted 02/12/2024

The ESH Directorate provides best in class environmental, safety and health services along with Radiation Control Division’s state of art in radiation protection to enable discovery, cutting edge science and operational excellence.

The Internal dosimetry position is to join BNL’s radiation experts to provide operation excellence in invivo and invitro dosimetry and support regulatory compliance in radiation protection.

Essential Duties and Responsibilities:

  • Provide professional and technical service for the whole-body counter (WBC) operations and as an internal dosimetrist.

  • Perform daily functions to operate the whole-body counter, perform quality assurance and control of the detector, perform the invivo measurements.

  • Provide logistic support to ship bioassay samples to contract laboratories.

  • Review, verify and validate the invitro analytical results from contract laboratory.

  • Calculate internal dosimetry intakes, effective doses  and provide technical support to the internal dosimetry program. 

  • Support the invivo and invitro measurements to comply with 10CFR835, ANSI and DOELAP requirements.

  • Provide technical review of the radioactivity and radiochemistry measurement  protocols for the dosimetry program.

  • Maintain QA/QC charts for WBC, LCS, blank sample results.

  • Participate in intercomparison and blind testing of the samples.

  • Develop statements of work for the analytical laboratory, complete the COC, analytical method, validate the results and generate reports of dose assessments.

  • Perform dose assessments with IMBA, Hot Spot and Varskin software’s to calculate the dose assessment.

  • Support the review of DAC-hr facility monitoring program and assist in type and frequency of bioassay collection, methods, analytical protocols, and assessment of the facilities.

  • Maintain the sampling protocols for bioassay programs to obtain defensible and reliable results.

  • Maintain and enhance the DOELAP accreditation of the dosimetry program, hardware and software systems for optimal results and compliance.

  • Track and resolve concerns, findings for DOELAP, internal assessments and quality assurance for Internal dosimetry.

  • Review, implement and update  the Internal dosimetry Technical Basis Document (TBD), Quality Assurance Plan (QAP) and Standard Operating Procedures (SOPs) in accordance with DOE and Radiation Control Division policies.

  • DOELAP accreditation, quality assurance and personnel monitoring operations that are consistent with the DOELAP standards and occupational dose reports.

  • Continuously improve upon the performance, efficiency, and quality of the monitoring program with 10CFR835, 10CFR830, ANSI/HPS standards, and DOE regulations and standards.

  • Maintain the conduct of operations, logistic functions, including facilities, equipment, supplies to ensure quality of dosimetry program and dose report deliverables.

Required Knowledge, Skills, and Abilities:

  • Bachelor’s degree in radiation protection/ dosimetry/Health Physics/Nuclear engineering or equivalent.

  • At least 3 years’ experience in dosimetry implementation.

  • Experience with nuclear detection instruments and systems.

  • Well organized and problem-solving skills.

  • Excellent  teamwork, communication, and interpersonal skills.

Preferred Knowledge, Skills, and Abilities:

  • 7 years’ experience in dosimetry implementation.

  • Current American Board of Health Physics (ABHP) Certification or equivalent certification.

  • DOELAP accreditation assessment experience.

  • Experiencing in dosimetry systems, dose calculations and technical implementation.


  • The selected candidate will be placed at the appropriate level based on the depth and breadth of relevant engineering knowledge, skills and experience.

  • This is an On-Site position.

Brookhaven National Laboratory is committed to providing fair, competitive, and market-informed compensation. This is a multi-level role and the full salary range for this position is $94250 - $155700 / year. Salary offers will be commensurate with the final candidate’s qualification and experience, including skills, knowledge, relevant education, and certifications, and also aligned with the internal peer group.

Brookhaven employees are subject to restrictions related to participation in Foreign Government Talent Recruitment Programs, as defined and detailed in United States Department of Energy Order 486.1A. You will be asked to disclose any such participation at the time of hire for review by Brookhaven. The full text of the Order may be found at:

Equal Opportunity/Affirmative Action Employer

Brookhaven Science Associates is an equal opportunity employer that values inclusion and diversity at our Lab. We are committed to ensuring that all qualified applicants receive consideration for employment and will not be discriminated against on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, status as a veteran, disability or any other federal, state or local protected class. BSA takes affirmative action in support of its policy and to advance in employment individuals who are minorities, women, protected veterans, and individuals with disabilities. We ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

*VEVRAA Federal Contractor

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