GE HEALTHCARE
DIRECTION 2307224-100, REVISION 6DISCOVERY LS SYSTEM SERVICE MANUAL
Appendix B - System Calibration Quick Guide Page 347
Appendix B - System Calibration Quick Guide
The table below contains a list of the calibration procedures necessary for the regular operation of
the Discovery LS PET-CT system. The PET calibration procedures are described in the PET
Advance Operator Manual, Direction 2280383-100. The calibrations should be performed in the
order presented in the table.
Note: Well Counter Correction should be performed after running the VQC procedure.
No. Calibration Type Frequency Duration
1 Reboot Daily 5 min.
2Singles:
Update Gain
Weekly
• When performing position
(crystal map calibration).
• After detector or ACEM board
replacement.
50 - 240 min.
3Singles:
Position
• Every 3 months.
• After detector replacement.
50 min.
4Singles:
Energy
• Every 3 months.
• When performing position
(crystal map calibration).
50 min.
5 CTC Weekly 10 - 15 min.
6 Blank Scan Daily 30 min.
7 Normalization Every 3 months 12, 18, or 24 hours
depending on
sources strength.
8 VQC Weekly during 4-8 weeks after initial
installation, then monthly.
15 min.
9 Well Counter
Calibration
Every 3 months. 1 - 2 hours
10 Tube Warm-Up Daily 1 min.
11 Fast Cals Daily
(Once every 3 months, a full
System call must be performed by a
Service Engineer.)
30 min.
12 Clean Database Weekly 20 min.
To Next Page
Loading...
