A complete portfolio,
by configuration.
Low-, medium-, and high-energy designs in parallel-hole, fan-beam, and pinhole configurations — manufactured to customer drawings and suitable for every isotope used in clinical SPECT imaging.
Geometries
in production.
Hexagonal, rectangular and pinhole channel geometries — manufactured, inspected and packed for shipment to OEM and clinical partners worldwide.
Six families,
one portfolio.
Click any family for the physics and clinical use.
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We manufacture to OEM drawings and customer specifications, including legacy replacements and custom geometries.
Technical reading,
curated.
Peer-reviewed references, society guidelines and standards covering collimator geometry, SPECT image formation, and clinical performance.
- Collimator Design
Collimator selection, acquisition parameters, and reconstruction protocols in SPECT — a review
Journal of Nuclear Medicine Technology · Bailey DL, Willowson KP · 2014Foundational review of how collimator geometry (LEHR, LEGP, MEGP, HEGP) interacts with isotope energy, acquisition matrix, and reconstruction filters to determine final image resolution and sensitivity.
- Collimator Design
Physics and instrumentation of SPECT — collimator design fundamentals
IAEA Human Health Series · 2014IAEA reference covering parallel-hole, converging, diverging and pinhole collimator geometry, septal penetration, and the resolution–sensitivity trade-off that drives every collimator selection decision.
- Collimator Design
Resolution and sensitivity of parallel-hole collimators — analytical and Monte-Carlo evaluation
Physics in Medicine & Biology · Gunter DL · 2002Analytical treatment of how hole length, hole diameter, and septal thickness govern geometric resolution (R_g) and sensitivity (g) — the equations behind every LEHR vs LEHRS specification sheet.
- SPECT Physics
SPECT instrumentation and image formation — a primer
Seminars in Nuclear Medicine · Madsen MT · 2007Concise primer on the full SPECT acquisition chain: collimation, detector response, attenuation, scatter, and iterative reconstruction — useful context for understanding where collimator quality enters the final image.
- SPECT Physics
Quantitative SPECT/CT — technical considerations and the role of collimator response modelling
EJNMMI Physics · 2017Why modern reconstruction (RR/CDR) needs an accurate model of the physical collimator: angular response, septal penetration, and hole geometry must be characterised per collimator family for quantitative imaging.
- Clinical Application
Brain SPECT imaging with fan-beam collimators — geometric advantages and clinical impact
Journal of Nuclear Medicine · Tsui BMW, Gullberg GT, Edgerton ER, et al.Classic paper establishing why converging (fan-beam) geometry is the standard of care for dedicated brain SPECT — simultaneous improvement in resolution and sensitivity for organs that fit within the focal geometry.
- Clinical Application
Pinhole SPECT for parathyroid and thyroid imaging — collimator geometry and image quality
Clinical Nuclear MedicineClinical evidence for pinhole geometry in small-organ imaging: how aperture diameter, edge profile, and source-to-aperture distance control the resolution–sensitivity trade-off at the bedside.
- Quality Assurance
Quality assurance for SPECT systems
IAEA Human Health Series No. 6 · 2009Comprehensive QA reference: collimator integrity testing (transmission, septal damage), uniformity, COR, and resolution measurements — the procedures every nuclear medicine department uses to validate collimators in service.
- Standards & Guidelines
NEMA NU 1-2018 — Performance measurements of gamma cameras
National Electrical Manufacturers Association · 2018The standard against which gamma camera and collimator performance is measured: intrinsic and system spatial resolution, sensitivity, count-rate performance, and multiple-window spatial registration.
- Standards & Guidelines
AAPM Report No. 177 — Acceptance testing and annual physics survey of SPECT-CT systems
American Association of Physicists in Medicine · 2019Procedures for acceptance and annual evaluation of SPECT/CT systems, including collimator-specific tests for sensitivity, planar resolution, and system spatial resolution at multiple radii.
External links open on the publisher's site. Precise HY Corporation is not affiliated with the cited authors, journals, or societies.