SPECT and PET Line Sources

JRT offers a Line Source Replacement Program
that includes the timely replacement of your
line source(s) and the
return of your used source.

JRT offers custom Line
Sources for standard
and non-standard
gamma cameras.

SPECT Line Sources

JRT Associates offers a wide range of attenuation correction Line Sources for Single Photon Emission Computed Tomography (SPECT) studies.

A line source is used to produce a "control beam" that is measured concurrently with the "radiopharmaceutical beam". The two beams are integrated and patient specific attenuation is calculated. The resulting image is of higher quality than an image produced without attenuation correction. Typical Line (Attenuation) Sources for SPECT studies include Gd-153 and Co-57.

Sources are configured in both line and point geometries. The nuclides, activities and dimensions are manufactured in accordance with OEM Camera manufacturer specifications. Line sources are singly or doubly encapsulated with welded joints.

Call JRT Associates for pricing and help with selecting the correct Line Source for your SPECT system.

JRT offers custom Line
Sources for standard
and non-standard
PET systems.

PET Line Sources

The Ge-68 Line Source is used to calibrate PET systems. It is used as a transmission standard or source of annihilation photons to provide a tissue density correction for more accurate diagnostic scanning.

The source is mounted in a moveable holder which revolves around the patient’s head or body. The source emits photons which attenuate in the patient to varying degrees, depending on the location of the source with respect to the patient. The counter-opposed detectors on the PET system detect the radiation at any given point and the system software computes and stores this information. The instrumentation “corrects” the annihilation radiation intensity emitted from the administered radiopharmaceutical, automatically adjusting for the effect of the density and thickness of the tissue through which the photons travel at all the reference locations. This provides a “background corrected” scan of the patient to optimize resolution and to define more precisely the distribution of the radiopharmaceutical.

Call JRT Associates for pricing and help with selecting the correct Line Source for your PET system.