The ramp-up or start-up performance of our linacs has been described already elsewhere. Here, some more dose rate plots for different linac settings are shown.
The ramp-up or start-up performance of our linacs has been described already elsewhere. Here, some more dose rate plots for different linac settings are shown. |
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| 6MV photons, DR 600MU/min, dose servo on (clinical mode). Click all images to enlarge. | 6MV photons, DR 500MU/min, dose servo off. Note: servo cannot be turned off for 6MV and highest dose rate - therefore 500. |
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| 15MV photons, DR 600MU/min, dose servo on. | 15MV photons, DR 600MU/min, dose servo off. |
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| 6MV photons, DR 100MU/min, dose servo on. This dose rate is chosen to take double exposures. For 6MV, target pulses come at 360Hz for DR600, and at 60Hz for DR100. | 15MV photons, DR 100MU/min, dose servo off. The measured maxima are 32ms apart. This is consistent with the target pulse frequency of 30Hz. With Fast Measure, you can measure single target pulses! |