Calibration
1MAN0158-H11 04-2005 CSIP Level 1
CardioMD Service Manual
4-25
Procedure Details
The system proceeds to acquire Y linearity
data.
24.
After a few million counts, check that all
slits in the phantom are clearly resolved.
When the detector has been calibrated in both
the X and Y direction, this message pops up.
25.
Remove the source to avoid saturating the
open detector.
26.
Click OK.
27.
Repeat the procedure to calibrate the other
detector, or
28.
Click Exit to close the LinCor page.
4.2.8
Uniformity Calibration (UnifCor)
4.2.8.1
Description
The uniformity of the scintillation crystal in the detector depends on the energy of the isotope
used, and the collimators may have minor variations in sensitivity. To compensate for non-
uniformity, CardioMD requires uniformity calibration.
The flexible scheme of uniformity correction supported by CardioMD enables the user to acquire
both intrinsic and extrinsic uniformity correction tables. Uniformity correction tables can be ac-
quired at any isotope peak (or combinations with multiple peaks) and with specific energy win-
dows to match the setup for clinical applications exactly.
4.2.8.2
Uniformity Calibration Procedure
To be performed:
When the detector has been re-calibrated or when intrinsic
uniformity is out of spec (2.5 % integral and 1.5 % differen-
tial).
Detector:
One detector at the time, intrinsic or extrinsic.
Note
. FOV mask is used for intrinsic calibrations
Source:
Specific isotope ~ 40 MBq or 1 mCi (intrinsic),
~ 120 – 200 MBq or 3 – 5 mCi (extrinsic).
Total calibration time:
Approximately 20 minutes per detector.
Slits
Summary of Contents for CARDIOMD
Page 1: ...CARDIOMD SERVICE MANUAL 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 10: ...Introduction x CardioMD Service Manual 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 16: ...Safe Operating Practices 1 6 CardioMD Service Manual 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 164: ...Detector Calibration Files 5 60 CardioMD Service Manual 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 328: ...Installation Procedures 9 38 CardioMD Service Manual 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 348: ...Planned Maintenance Procedures 11 6 CardioMD Service Manual 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 465: ......