Philips CARDIOMD - NEMA Spatial Resolution and Linearity; Test Procedure; Test Requirements

NEMA Performance Measurement
1MAN0158-H11 04-2005 CSIP Level 1 CardioMD Service Manual  10-9
10.4 NEMA Spatial Resolution and Linearity
10.4.1 Test Requirements
Detector: Phantoms. One detector at a time.
Source: Tc-99m ~ 150–200 MBq or 4–5 mCi point source yielding
20 kcps or less.
Source holder: Point source holder.
Phantoms: NEMA X and Y Line Phantoms.
Total test time: Approximately 2 times 15 minutes per detector.
10.4.2 Test Procedure
Note. If the CardioMD system is equipped with the AC Option, the transmission scanners must be
removed before the NEMA Spatial Resolution test can be performed. See Chapter 12 CardioMD
AC Option for instructions.
Procedure Details
1. In the NEMA menu, select Spatial resolu-
tion and linearity.
The Spatial Resolution and Linearity page
appears.
2. In the Energy field, enter 140.5 for Tc-
99m.
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 spatial resolution
and linearity.
Note. Automated motions must be started from the patient load position.
Note. The detector positions are the same as the ones used to measure energy resolution. See page
10-5.