Twitter LinkedIn

Specialty Surveys

RADIOLOGICAL CHARACTERIZATION, SITE CLOSURE AND LICENSE TERMINATION

Closing a Facility or terminating a radioactive materials license involves several regulatory actions and can be challenging depending on the scope of activities performed at the licensed location.  RSCS is experienced in designing and implementing survey plans according to guidance provided by the Multi Agency Radiological Site Survey and Investigation Manual (MARSSIM). Our survey plans integrate CAD, Visual Sample Plan (VSP), voxel and interpolation computer applications to accurately map and locate areas of concern in 2D and 3D, generate survey reports, and demonstrate closure requirements. Whether your facility requires interior, exterior or subsurface characterization, remediation or verification, RSCS has the experience and knowhow to ensure that you facility meets license termination requirements.

MARSAME/MARSSIM SURVEY SUPPORT

Waste disposal costs account for a significant portion of any Extended Power Uprate, retrofit or decommissioning project budget.  RSCS specializes in MARSAME based waste minimization techniques to support large site project.  This federally endorsed process is designed to logically approach the task of free releasing large amounts of material and equipment using a risk based processed developed from site historical documents and supplemented with sampling. Specialized In-Situ techniques and gross aggregate monitors using high purity germanium and scintillations media are used in parallel with traditional instrumentation to provide a unique process that greatly reduces the amount of time to disposition material for waste or free-release for recycling. In addition these techniques can reduce the need for confined space entry or additional material handling contributing to reduced worker risk.  Our team can provide support from procedures and technical evaluations all the way to full turn-key solutions for our clients.

NEUTRON DOSE SURVEYS

Radiation profiles at operating nuclear plants or ISFISI sites can vary from standardized models employed by dosimetry providers.  RSCS performs studies to determine site specific correction factors for nuclear power plants, particle accelerators, and research facilities. These correction factors are recommended as they provide more accurate dosimetry results over the use of default values from the vendor. Correction factors are recommended to be done with any of the following changes: in dosimetry type or provider, changes to power levels, changes to system components or shielding in containment, changes to reactor head design, beginning of ISFSI fuel campaigns, change from ICRP-26 to 60 neutron dose coefficients. We perform these measurements using Tissue Equivalent Proportional Counters, Multi Sphere techniques, and/or H-3 Neutron Spectrometer to measure true dose equivalent and spectral qualities of the neutron radiation fields. Custom ANSI 13.11-2009 compliant phantoms are used to perform these measurements with dosimeters in containment vessels designed to satisfy site engineering requirements.

RADIOLOGICAL EFFLUENTS AND ENVIRONMENTAL MONITORING

Effective monitoring of effluents and the environment is important to demonstrate facilities are operating safely.  RSCS staff includes trained environmental and soil scientists, hydro-geologists, and geo-chemists  who are skilled in state-of-the-art techniques relating to measuring and characterizing  radioactivity in liquid and airborne effluents, soils, subsurface structures and groundwater.  We specialize in:


  • Stack Assessments
  • Effluent Instrumentation
  • Leak Detection
  • Groundwater and Subsurface Characterization
  • Monitoring Well Design and Installation

NUMERICAL GROUNDWATER MODELING AND MANAGEMENT OF SITE GROUND WATER MONITORING PROGRAMS

Our team utilizes state-of-the art techniques and methods in our assessments including the use of robotics, remote real-time sensors and data loggers, and deployment of advanced technologies such as tritium soil vapor extraction systems.