NEMA Energy Resolution
10-4
CardioMD Service Manual
1MAN0158-H11 04-2005 CSIP Level 1
10.2
NEMA Energy Resolution
10.2.1
Test Requirements
Detector:
Intrinsic, no collimator. One detector at a time.
Source:
Tc-99m ~ 7–20 MBq or 200–500
µ
Ci, yielding 20 kcps or
less
Co-57 ~ 7–20 MBq or 200–500
µ
Ci, yielding 20 kcps or
less.
Phantom: NEMA
Mask.
Source holder:
Point source holder.
Total test time:
Approximately 2 times 5 minutes per detector.
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 Details
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 Details
6.
Replace the collimator on the selected
detector with the NEMA mask (slide the
collimator out and slide in the mask).
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: ......