Difference between revisions of "TOF Light Attenuation"
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A closer look at the attenuation of light in the TOF paddles suggests the use of two attenuation lengths rather then just one. This gives a much better description over the full length of the paddles. The following figure shows a fit to the MPV positions of paddle 44 as a function of position along the paddle. The red curve shows a fit with two free parameters for the two attenuation lengths and one overall scale factor. The cyan curve shows a fit to the data from 1/3 to 2/3 along the paddle with a single attenuation length parameter. At FSU the attenuation length was determined with measurements at these two points along the paddle. | A closer look at the attenuation of light in the TOF paddles suggests the use of two attenuation lengths rather then just one. This gives a much better description over the full length of the paddles. The following figure shows a fit to the MPV positions of paddle 44 as a function of position along the paddle. The red curve shows a fit with two free parameters for the two attenuation lengths and one overall scale factor. The cyan curve shows a fit to the data from 1/3 to 2/3 along the paddle with a single attenuation length parameter. At FSU the attenuation length was determined with measurements at these two points along the paddle. | ||
| − | *[[File:paddle44_plane1_atten_run9999. | + | *[[File:paddle44_plane1_atten_run9999.gif|400px|tumb|| paddle 44 attenuation]] |
The average attenuation length found at FSU is of the order of | The average attenuation length found at FSU is of the order of | ||
Revision as of 09:07, 28 July 2015
TOF Light Attenuation
Light attenuation in the TOF paddles are investigated
A closer look at the attenuation of light in the TOF paddles suggests the use of two attenuation lengths rather then just one. This gives a much better description over the full length of the paddles. The following figure shows a fit to the MPV positions of paddle 44 as a function of position along the paddle. The red curve shows a fit with two free parameters for the two attenuation lengths and one overall scale factor. The cyan curve shows a fit to the data from 1/3 to 2/3 along the paddle with a single attenuation length parameter. At FSU the attenuation length was determined with measurements at these two points along the paddle.
The average attenuation length found at FSU is of the order of
