[Halld-cal] Table of light guide measurements / acceptance

[Elton Smith]

Hi Iñaki,

Thank you very much for providing the dimensions of the light guides for 
the first two sets. From your measurements we see that all transverse 
dimensions are within our +/-0.127 mm tolerance. The length dimensions 
in some cases exceed the tolerance. The worst case is light guide G-13 
with a length of 80.310 mm compared to the specification of 80.00 mm. We 
consider this light guide unacceptable. However, we are willing to 
accept all other light guides, with guide A-18 having the worst 
discrepancy with the length of 80.204 mm. As production and calibration 
of the machine continues, we are confident that this dimension will be 
brought into the expected tolerance range for future guides.

Please replace light guide G-13 and complete the light guides J to fill 
the first two sets for shipment to Jlab.

Sincerely, Elton.

Elton Smith
Jefferson Lab MS 12H5
12000 Jefferson Ave
Suite #16
Newport News, VA 23606
(757) 269-7625
(757) 269-6331 fax

On 8/15/12 4:51 PM, iñaki wrote:
> Dear Elton,
>
> Please find attached the Table-1 of light guide measurements. We call 
> "cota F" to the length of the light guide.
>
> Thanks,
> iñaki
>
>


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