"Scan hardware Stopped Scan" with beam tracking errors.

Symptom

Error message

Error: 260007456 Beam Tracking Control Loop Error Exceeded The WARNING Tolerance. See LD for more details Error: 260007456 Beam Tracking Control Loop Error Exceeded The WARNING Tolerance Mon Mar 20 16:36:22 2006 Error: 260007456 Host: DAS Process: DCB Firmware File: zaxis.c Line: 578 Function: DATA ACQUISITION : Scan Data Acquisition Scan: 50201/5/19 Type: Axial Exception Level: Pri/Soft Time: 16:36:22:380 Log Series: 83 Beam Tracking Control Loop Error Exceeded The WARNING Tolerance. Tolerance : 200 umd Control Error : 319 umd Beam Side : A Side

Error: 260007457 Beam Tracking Control Loop Error Exceeded The ABORT Tolerance See Long Description for complete error Wed Apr 27 18:54:40 2005 Error: 260007457 6 DAS DCB Firmware zaxis.c 564 Function: DATA ACQUISITION : Scan Data Acquisition Scan: 50084/6/0 Type: None/Unknown Exception Level: Pri/Soft Time: 18:54:40:490 Log Series: 936 Beam Tracking Control Loop Error Exceeded The ABORT Tolerance. Tolerance : 400 umd Control Error : 448 umd Beam Side : B Side

Do Not Use - use on of the other two Error: 260101023 The (DCB or CCB) has notified the system of an error see long description for examples. Tue Dec 28 09:41:31 2004 Error: 260101

Applies to

Models

LightSpeed

Product

LightSpeed RT4 WB O G4 G HPT WB O M4 G HPT LightSpeed RT4 with GRE and MDAS4 or GDAS4 gantry At GE Medical Systems, we’re pioneering exciting CT technology for Radiation Therapy planning. Introducing the newest addition to our LightSpeed® series – LightSpeed RT, the first multi-slice, wide-bore CT scanner with the largest field of view in the industry. With a generous 80 cm gantry opening, the LightSpeed RT bore is 10 cm larger than conventional scanners. This provides complete flexibility for patient positioning freedom – even for the most demanding oncology needs. And the 65 cm variable field of view delivers 15 additional centimeters of visual coverage, allowing clinicians to see a patient’s entire anatomy for precise radiation therapy planning. Position and precision Thin, multi-slice imaging is the extra bonus – enabling respiratory gating, providing precise target delineation and delivering higher resolution digitally reconstructed radiographs (DRRs) than ever before. All adding up to the ability for you to deliver what really matters most – better cancer care for your patients. Plus, the LightSpeed RT scanner is available with the Exact™ couch insert, enabling you to consistently replicate patient immobilization for treatment. With LightSpeed RT, the future of your Radiation Oncology department is wide open. Links to the Product Service Manuals, FMIs, Service Notes, Option Manuals and Operator Documents can be found online at the attached sites. Always use the most appropriate documentation for your system.

Component

5140001-4 helios 4 collimator with notched filler bar and rating plate used on 5.X scanners. See Long Description for Details. Part #: 5140001-4 Part Type: GP REPAIRABLES Part Weight: 2.20 LBR Repairable: Yes Returnable: Yes Hazardous Material: N Description: helios 4 collimator with notched filler bar and rating plate FRU: Yes Status: Orderable Comments: Added by ECR 2013518 as ms13452 050428 **FE Assist** Used on H-power - main difference is the mount holes are larger to accommodate for larger bolts to hold the added weight of the Hercules Tube. 5140001-4 is also used on HP-60 s . 514001-4 is not backwards compatible.(12/5/06 212001261) *** 2ND OPINION NOTES *** Replacing for artifacts? Look into collimator with bright light. Any particulate? Look at plastic over copper filter, any distortion or yellowing? Bow tie filter ok? There are several lower level FRUs. Ensure that one of the lower level FRUs could not fix the problem.

Area

CT

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