Difference between revisions of "Preparation for 2021 Run"
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| − | ;Perform preventative replacement of FCAL bases in 4 inner rings, which is critical for reconstruction of Compton events | + | ;Perform preventative replacement of FCAL bases in 4 inner rings, which is critical for reconstruction of Compton events <span style="color:brown">(Support needed from '''Chris Stanislav, Fernando Barbosa, Matt Shepherd''' )</span> |
: Several bases have already been replaced in this area. The status of FCAL bases in the 3 inner FCAL rings was provided by Colin and is presented in the link below. | : Several bases have already been replaced in this area. The status of FCAL bases in the 3 inner FCAL rings was provided by Colin and is presented in the link below. | ||
:[https://logbooks.jlab.org/entry/3810770 Status of FCAL dividers in 3 inner rings] | :[https://logbooks.jlab.org/entry/3810770 Status of FCAL dividers in 3 inner rings] | ||
| − | ;Perform preventative maintenance of FCAL bases | + | ;Perform preventative maintenance of FCAL bases, which draw excessive current span style="color:brown">(Support needed from '''Chris Stanislav, Fernando Barbosa, Matt Shepherd''' )</span> |
| − | :Diagnose and subsequently replace (reapair) bases which draw excessive current (typically larger than 15 mA), which is an indication of the possible failure. Currently estimate about 200 - 300 such bases | + | :Diagnose and subsequently replace (reapair) bases which draw excessive current (typically larger than 15 mA), which is an indication of the possible failure. Currently estimate about 200 - 300 such bases |
Revision as of 17:07, 10 September 2020
Below is a list of action items which we would like accomplish before the PrimEx Phase II run in Spring/Summer of 2021
- Aligning FCAL in the Hall (Coordinated by Tim Whitlatch )
- Moving FCAL platform by about 5 mm in X-direction to make sure that the beam goes through the middle of the FCAL hole (3x3 modules). The exact position of the platform should be confirmed by the alignment group
- Perform preventative replacement of FCAL bases in 4 inner rings, which is critical for reconstruction of Compton events (Support needed from Chris Stanislav, Fernando Barbosa, Matt Shepherd )
- Several bases have already been replaced in this area. The status of FCAL bases in the 3 inner FCAL rings was provided by Colin and is presented in the link below.
- Status of FCAL dividers in 3 inner rings
- Perform preventative maintenance of FCAL bases, which draw excessive current span style="color
- brown">(Support needed from Chris Stanislav, Fernando Barbosa, Matt Shepherd )</span>
- Diagnose and subsequently replace (reapair) bases which draw excessive current (typically larger than 15 mA), which is an indication of the possible failure. Currently estimate about 200 - 300 such bases
- Refurbish CCAL active bases -- Support needed from Chris Stanislav and Fernando Barbosa
- manufacture 150 new active bases according to V. Popov modifications and install them on the CCAL
- Chris has already prepared a new PCB design
