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@inproceedings{peiris:ipac2021-mopab415,
author = {G.S. Peiris and M.F. Kasim and S.A. Pawiro and S.L. Sheehy},
title = {{Failure Rates and Downtimes of Multi-Leaf Collimators in Indonesia}},
booktitle = {Proc. IPAC'21},
pages = {1248--1251},
eid = {MOPAB415},
language = {english},
keywords = {linac, radiation, target, gun, power-supply},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-MOPAB415},
url = {https://jacow.org/ipac2021/papers/mopab415.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-MOPAB415},
abstract = {{One of the greatest barriers to cancer treatment in Low and Middle-Income Countries (LMICs) is the access to Radiotherapy Linear Accelerators (LINACs). Not only are the LINACs complex, the harsh environment of LMICs cause frequent breakdowns resulting in downtimes ranging from days to months. Recent research has identified a disparity between LMICs and High Income Countries (HICs) and determined the Multi-Leaf Collimator (MLC) as a component needing re-evaluation. The MLC causes over 30% of the problems in RT LINACs, but the modes of failure and quantify the extent of the damage done are yet to be quantified. Using data from across Indonesia, we show the pathways to failure of RT Machines and frequency of breakdowns over time. A component of the MLC needs to be replaced every 9.98 faults per 1000 patients treated and the MLC itself breaks down on average every 36±1.8 days. When comparing the downtime by leaf width, the data shows 5mm leaves contribute 18.27±6.5% to all breakdowns while 10mm makes up 15.87±4.3%. These results outline the need to reassess the current generation of RT LINACs and ultimately work towards guiding future designs to be robust enough for all environments.}},
}