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Job Req ID:  10286

Health Physicist

Classified Title: Health Physicist 
Role/Level/Range: ATP/4/PG
Starting Salary Range: Commensurate with Experience
Employee group: Full-Time 
Work Schedule/Hours:  Monday-Friday/8:30-5p/37.5 hrs.
Location: East Baltimore
Department name: Office of Safety & Environmental Health 
Personnel area: School of Medicine




The Office of Safety and Environmental Health is currently seeking a Health Physicist to supervise radiation safety technicians, manage technical health physics operations. radiation surveys of high radiation areas, setup and calibration of RCU radiation measurement instruments, manage bioassay and environmental monitoring program.



  • Supervise Radiation Safety Technicians engaged in conducting inspections and audits of radioactive materials laboratories.
  • Perform health physics surveys of high radiation operations, for example: Cyclotron, PET Center, Radiation Oncology, Nuclear Medicine, and gamma irradiators.
  • Perform quarterly radiation survey audits of clinical RAM use areas.
  • Establish and administer a mandatory bioassay monitoring program.          
  • Perform certification surveys of x-ray producing equipment.
  • Evaluate monthly personnel radiation monitoring results and investigate and determine corrective actions for high radiation exposures.
  • Evaluate airborne radionuclide concentrations from isotope hood exhaust systems and determine what corrective or remedial actions are required.
  • Teach general radiation safety classes for staff, employees, and students.
  • Assist Laser Safety Officer, involving; approve laser operational procedures, audit laser equipment in labs, training of users in laser safety, investigate laser accidents.
  • Provide professional level health physics coverage during an emergency involving contamination and/or injured personnel, on site or at a medical facility. Evaluate radiological incidents to determine the cause and corrective action.
  • Determine operating parameters of counting equipment (detector efficiency, detector resolution, detector reliability, energy calibration, and background determination).
  • Perform sealed radioactive source leak tests.
  • Calibrate portable radiation survey equipment, environmental area radiation monitors and sampling equipment.



A Bachelor of Science Degree in the sciences, engineering, or health physics and four years technical experience in a radiation safety program for a "broad scope" radioactive materials license for a medical institution.  Demonstrated knowledge of the following:


  • Applicable regulations, ie. Nuclear Regulatory Commission, Food and Drug Administration, and State of Maryland; 
  • Technical issues related to licensing, investigations, and complaints; 
  • Theory, principles and practices in the field of health physics.


Additional education may substitute for experience to the extent permitted by the JHU equivalency formula. 


JHU Equivalency Formula:  18 graduate degree credits may substitute for one year of experience. For jobs where equivalency is permitted, up to two years of non-related college course work may be applied towards the total minimum education/experience required for the respective job.



An advanced degree in health physics or related discipline desired.


The successful candidate(s) for this position will be subject to a pre-employment background check.


If you are interested in applying for employment with The Johns Hopkins University and require special assistance or accommodation during any part of the pre-employment process, please contact the HR Business Services Office at For TTY users, call via Maryland Relay or dial 711.


The following additional provisions may apply depending on which campus you will work.  Your recruiter will advise accordingly.


During the Influenza ("the flu") season, as a condition of employment, The Johns Hopkins Institutions require all employees who provide ongoing services to patients or work in patient care or clinical care areas to have an annual influenza vaccination or possess an approved medical or religious exception. Failure to meet this requirement may result in termination of employment.


The pre-employment physical for positions in clinical areas, laboratories, working with research subjects, or involving community contact requires documentation of immune status against Rubella (German measles), Rubeola (Measles), Mumps, Varicella (chickenpox), Hepatitis B and documentation of having received the Tdap (Tetanus, diphtheria, pertussis) vaccination. This may include documentation of having two (2) MMR vaccines; two (2) Varicella vaccines; or antibody status to these diseases from laboratory testing. Blood tests for immunities to these diseases are ordinarily included in the pre-employment physical exam except for those employees who provide results of blood tests or immunization documentation from their own health care providers. Any vaccinations required for these diseases will be given at no cost in our Occupational Health office.


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School of Medicine - East Baltimore Campus

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