Tube arcing
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Murphy A, Glick Y, et al. Tube arcing. Reference article, Radiopaedia.org (Accessed on 19 Feb 2025) https://doi.org/10.53347/rID-2220
Permalink:
rID:
2220
Article created:
Disclosures:
At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Andrew Murphy had no financial relationships to ineligible companies to disclose.
View Andrew Murphy's current disclosures
Revisions:
5 times, by
5 contributors -
see full revision history and disclosures
Sections:
Tags:
Tube arcing occurs when there is a short-circuit within the tube, typically from the cathode to the tube envelope. The result is a temporary loss of x-ray output and a localized artifact.
A number of causes of tube arcing are recognized 1:
- insulator surface flashover
- insulator breakdown
- vacuum flashover
- most common
- due to particulate impurities or gas within the tube
- new tubes are more prone to this problem due to residual gas
A small amount of tube arching is not uncommon and modern scanners have automated processes to remove the artifact from the final images 1,2.
References
- 1. Mithun S, Jha AK, Panchal K, Purandare NC, Shah S, Agrawal A, Rangarajan V. A rare cause of tube arcing artifact seen in computed tomography image of a positron emission tomography/computed tomography scanner. (2016) The Indian journal of radiology & imaging. 26 (1): 153-5. doi:10.4103/0971-3026.178368 - Pubmed
- 2. Jiang Hsieh. Computed Tomography. (2018) ISBN: 9780819444257
Incoming Links
Articles:
Related articles: Computed tomography
- computed tomography in practice
-
computed tomography overview
- iodinated contrast media
- CT IV contrast media administration
-
CT artifacts
- patient-based artifacts
- physics-based artifacts
- hardware-based artifacts
- ring artifact
- tube arcing
- out of field artifact
- air bubble artifact
- helical and multichannel artifacts
- CT technology
-
generations of CT scanners
- helical CT scanning
- step and shoot scanning
- ultra-high-resolution CT (UHRCT)
- CT x-ray tube
- CT fluoroscopy
- cone-beam CT
-
generations of CT scanners
- dual-energy CT
- CT image reconstruction
- CT image quality
- CT dose
-
CT protocols
- composite
- head & neck
- chest
- abdomen and pelvis
- CT abdomen-pelvis (protocol)
- CT abdominal aorta
- CT adrenals (protocol)
- CT cholangiography (protocol)
- CT colonography (protocol)
- CT enteroclysis (protocol)
- CT enterography (protocol)
- CT gastrography (protocol)
- CT kidneys, ureters and bladder (protocol)
- CT urography (protocol)
- CT Renal mass (protocol)
- CT angiography of the splanchnic vessels (protocol)
- CT renal split bolus
- CT pancreas (protocol)
- liver