On Apr 27, 2005, at 11:02 AM, Dave Cockerill wrote:

>
> Hi Domenico,
>
> I believe you will be using a particular make of Hall probe to measure
> the magnetic field in CMS.
>
> We would also like to mount ONE Hall probe on each of our 4 Dees - as a
> sensor to tell the VPT high voltage to ramp down if the CMS field
> changes.
>
> We would like to know which Hall probe (Company, number of leads etc)
> that you use.
>
> Do you have 4-5 spare ones?
>
> Thanks,
> Dave Cockerill.
>
Domenico CAMPI
CERN - PH / CMI
Group Leader

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