Diagnostic Radiation Physics Services (DRPS) provides comprehensive diagnostic medical physics and radiation safety consulting to healthcare facilities throughout San Diego and Southern California. San Diego County occupies the southwestern corner of California, bordered by Orange and Riverside counties to the north, Imperial County to the east, the Pacific Ocean to the west, and the international border with Mexico to the south. This geographic position—combined with a large military healthcare presence, a growing biomedical research sector, and a dense network of outpatient imaging facilities—creates a distinctive operating environment for imaging facilities and their physics compliance needs. DRPS serves imaging centers, hospital-based radiology departments, specialty clinics, and multi-site operators across San Diego County and into neighboring Riverside, Orange, and Imperial counties.
Medical Physics Services in San Diego
DRPS delivers a complete range of diagnostic imaging physics and radiation safety services to San Diego–area facilities:
- Equipment Performance Evaluations (EPEs): Annual and as-needed physics testing for radiographic, fluoroscopic, mammographic, CT, and MRI systems—ensuring equipment performance meets applicable regulatory and accreditation standards.
- Radiation Shielding Design & Certification: Primary and secondary barrier calculations for new construction, tenant improvements, and facility renovations. Post-construction verification surveys and written certification letters signed by a board-certified medical physicist.
- Radiation Safety Officer (RSO) Services: Named RSO coverage for facilities licensed to possess radioactive materials, encompassing program oversight, staff training, dosimetry management, and regulatory correspondence.
- Accreditation Support: Physics testing, image quality reviews, and full documentation packages for ACR, IAC, RadSite, and Joint Commission accreditation programs.
- CT Physics Testing: Comprehensive CT performance evaluations addressing dose indices, image quality parameters, and scanner calibration—aligned with ACR CT accreditation standards.
- PET/CT & Nuclear Medicine Physics: Acceptance testing, annual evaluations, and radiation safety support for PET/CT systems, SPECT cameras, and nuclear medicine programs.
- Quality Assurance Programs: Structured QA program development and periodic physicist consultation to maintain continuous compliance between formal evaluation cycles.
California Radiation Regulations
California is an NRC Agreement State, having assumed regulatory authority over radioactive materials from the U.S. Atomic Energy Commission in 1962. The California Department of Public Health (CDPH), Radiologic Health Branch (RHB) is the state radiation control agency with jurisdiction over San Diego County. Key regulatory points for imaging facilities:
- Radioactive materials licensing: Facilities using radioactive materials (PET tracers, nuclear medicine radiopharmaceuticals, brachytherapy) obtain licenses from CDPH-RHB under California's Agreement State program—not directly from the NRC.
- X-ray machine registration: All diagnostic X-ray equipment in California must be registered with CDPH-RHB and is subject to periodic state inspection.
- Mammography: Mammography facilities comply with federal MQSA requirements in addition to California state registration. CDPH-RHB serves as the relevant state contact.
San Diego facilities also operate under national accreditation standards administered by the ACR, IAC, RadSite, and The Joint Commission. DRPS physics reports and shielding certification letters are prepared in formats consistent with California-specific documentation requirements.
Why San Diego Facilities Choose DRPS
San Diego's imaging market includes a high concentration of independent outpatient centers, federally operated healthcare facilities, and specialty imaging operations tied to the region's biomedical research community. Compliance requirements span CDPH-RHB state oversight, federal programs, and multiple accreditation bodies simultaneously. DRPS provides board-certified diagnostic medical physicists (DABR) whose documentation is prepared to hold up under accreditation survey and regulatory inspection.
Facilities undertaking new construction or tenant improvements in San Diego benefit from DRPS shielding design services that account for California-specific structural and use-factor considerations and produce certification letters suitable for CDPH-RHB review. Multi-site operators in San Diego County and across Southern California receive consistent report formats and coordinated scheduling across locations.
Frequently Asked Questions
What areas of San Diego County does DRPS serve? DRPS serves facilities throughout San Diego County—from the downtown corridor and Mission Valley to La Jolla, Chula Vista, El Cajon, Escondido, Oceanside, and the North County communities. Coverage extends into neighboring Riverside, Orange, and Imperial counties.
How does California's Agreement State status affect my facility's radioactive materials license? Because California is an NRC Agreement State, your facility's radioactive materials license is issued and regulated by CDPH-RHB rather than the NRC. DRPS RSO services are structured around California's Agreement State requirements, including state-specific documentation, training records, and inspection readiness.
What accreditation programs does DRPS support in San Diego? DRPS supports ACR (mammography, CT, MRI, ultrasound, nuclear medicine, PET), IAC, RadSite, and Joint Commission accreditation. All physics testing is performed by board-certified physicists; reports are formatted for each program's submission specifications.
Can DRPS perform both shielding design and physics testing for a new San Diego imaging facility? Yes. DRPS handles the full physics scope for new facility projects—pre-construction shielding calculations, post-construction verification surveys, acceptance testing of new equipment, and EPE reports to support initial accreditation applications.
Does DRPS support military or federal imaging facilities in the San Diego area? Federal healthcare facilities operating under federal jurisdiction may have different regulatory pathways than state-licensed private facilities. Contact DRPS to discuss the specific regulatory framework and physics support needs for your facility.