PRECISEHY Corporation
§ SPECT & gamma-camera

SPECT collimators,
built to OEM drawing.

Collimator assemblies for SPECT and gamma-camera platforms — parallel-hole, fan-beam, pinhole, and rectangular-hole geometries across the full low-, medium-, and high-energy range. Produced to the OEM detector format, mounting interface, and inspection criteria.

Anatomy Geometries Energy classes
§ 01 · Integration

Where the collimator
sits.

Mounted at the inner face of each detector head, the collimator is the precision lens that defines what the gamma camera can see. Spatial resolution, sensitivity, and image geometry — each is set by its channel matrix, septa, and mounting interface, manufactured to the OEM detector format.

SPECT gantry anatomyEngineering schematic of a dual-head SPECT gamma camera. The collimator — the precision lead matrix mounted on the inner face of each detector head — is highlighted in red. An inset detail shows the hexagonal lead channel matrix and septa.FIG. 01 / SPECT GANTRY · COLLIMATOR LOCATIONPRECISE HY · OEM COLLIMATOR MFG · REV A01DETECTOR HEADNaI(Tl) or CZT substrate02 / WHAT WE MAKECOLLIMATORLead channel matrix · LEHR / MEGP / HEGP03GANTRY · BORERotating dual-head assembly04PATIENT TABLEDETAIL A — HEX CHANNEL MATRIXSCALE 20:1GANTRY · DETECTOR · TABLECOLLIMATOR — PRECISE HY SCOPE
Fig. 01 · SPECT gantry — collimator locationPrecise HY scope
§ 02 · By geometry

Geometry
portfolio.

Four standard geometries, each engineered for a different clinical question. Channel geometry, septa, and interface are manufactured to the customer drawing.

No. 01

Parallel-Hole

The general-purpose SPECT geometry. Low, medium, and high energy across the diagnostic isotope range.

View
No. 02

Fan-Beam

Converging-geometry optics for brain SPECT and small-organ acquisitions. To customer focal length.

View
No. 03

Pinhole

Magnifying single-aperture optics for the highest spatial resolution on small targets.

View
No. 04

Rectangular-Hole

Slot-channel geometries built to OEM detector pitch. High-sensitivity acquisitions.

View
§ 03 · By energy

Energy
classes.

Three principal classes, each defined by the gamma-ray energy it must stop. Customer terminology varies (LEHR, LEHRS, LEUHR, MEGP, MELP, HEGP, HEHR); underneath, three bands cover the full diagnostic and therapeutic isotope range.

ClassEnergyIsotopesClinical use
LELow energy · LEHR / LEHRS / LEUHR / LEGP30 – 200 keV⁹⁹ᵐTc · ²⁰¹Tl
¹²³I · ¹¹¹In		General-purpose SPECT — bone, lung perfusion, brain, renal, cardiac.
MEMedium energy · MEGP / MELP200 – 400 keV⁶⁷Ga · ¹¹¹In
¹⁷⁷Lu · ¹²³I high-energy		Therapy monitoring, sentinel-node localisation, and infection imaging.
HEHigh energy · HEGP / HEHR350 – 600 keV¹³¹I · ¹⁸F
theranostic isotopes		Post-therapy imaging, ¹³¹I scans, and emerging theranostic protocols.
§ 04 · Engage

Discuss a
collimator program.

Send drawings, BOM, or a target specification. We will review feasibility, materials, and inspection criteria. Response within two business days.

Submit a request for quotation