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applications:space:grid:grid02:start [18:28 10/06/2022] – [Results] jhulsmanapplications:space:grid:grid02:start [18:29 10/06/2022] (current) – [Results] jhulsman
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 {{ :applications:space:grid:grid02:grid02_vbd_time.png?nolink&310|}} {{ :applications:space:grid:grid02:grid02_vbd_time.png?nolink&310|}}
-The temperature dependance of the breakdown voltage (V$_{bd}$) is fitted with a linear function. It's gradient (or temperature coefficient) $k_b$ is found to be 21.5mV/K. As the figure to the right shows, after applying the temperature correction, no significant features are observed.  V$_{bd}$ therefore is minimally affected by radiation damage (more time in space = more radiation damage).+The temperature dependance of the breakdown voltage (V$_{bd}$) is fitted with a linear function. It's gradient (or temperature coefficient) $k_b$ is found to be 21.5mV/K. As the figure to the right shows, after applying the temperature correction, no significant features are observed.  V$_{bd}$ therefore is minimally affected by radiation damage (more time in space = more radiation damage). 
  
 === Dark Current === === Dark Current ===
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 Charge injections are used to look into the energy resolutions and noise contributions within the detector. Results in ADC channels are subsequently converted to equivalent energy with a scale factor ~0.027 keV/channel. When the bias voltage is switched off the width of the charge injection peak is heavily dominated by the electronics noise (irrespective of radiation damage). However, when the bias voltage is switched on the dark count noise becomes significant. Charge injections are used to look into the energy resolutions and noise contributions within the detector. Results in ADC channels are subsequently converted to equivalent energy with a scale factor ~0.027 keV/channel. When the bias voltage is switched off the width of the charge injection peak is heavily dominated by the electronics noise (irrespective of radiation damage). However, when the bias voltage is switched on the dark count noise becomes significant.
-Through Campbell’s theorem, the total noise can be correlated and fitted with respect to the dark current. This is shown in the figure below.+Through Campbell’s theorem, the total noise can be correlated and fitted with respect to the dark current. This is shown in the figure below. The results show a noise increase of ~7.5 keV/year for each channel.
  
 {{ :applications:space:grid:grid02:grid02_noise_idark.png?direct&600 |}} {{ :applications:space:grid:grid02:grid02_noise_idark.png?direct&600 |}}