Nema Energy Resolution; Test Requirements; Test Procedure - Philips CARDIOMD Service Manual

NEMA Energy Resolution

10.2 NEMA Energy Resolution

10.2.1 Test Requirements

Detector:
Source:
Phantom:
Source holder:
Total test time:

10.2.2 Test Procedure

Note. If the CardioMD system is equipped with the AC Option, the transmission scanners must be
removed before the NEMA Energy Resolution test can be performed. See Chapter 12 CardioMD
AC Option for instructions.
Procedure
1. In the NEMA menu, select Energy resolu-
tion.
The Energy resolution page appears.
2. In the Energy field, enter 140.5 for Tc-
99m.
(The default setting is 140.5 keV.)
3. Check Detector 1 or Detector 2 to specify
the detector to be measured.
4. Click Continue.
5. Click OK to accept automated motions.
Automated motions will now position the se-
lected detector for measuring energy resolu-
tion.
Note. Automated motions must be started from the patient load position.
Procedure
6. Replace the collimator on the selected
detector with the NEMA mask (slide the
collimator out and slide in the mask).
10-4 CardioMD Service Manual
Intrinsic, no collimator. One detector at a time.
Tc-99m ~ 7–20 MBq or 200–500 µCi, yielding 20 kcps or
less
Co-57 ~ 7–20 MBq or 200–500 µCi, yielding 20 kcps or
less.
NEMA Mask.
Point source holder.
Approximately 2 times 5 minutes per detector.
Details
Details
1MAN0158-H11 04-2005 CSIP Level 1