Difference between revisions of "BigBite Spectrometer"
From Hall A Wiki
(→Shower/Preshower Detectors) |
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=== Sept 18. 2008 === | === Sept 18. 2008 === | ||
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| + | ''Notice'': Terminology used in this section follows conventions of Hall A Tech Notes [http://hallaweb.jlab.org/publications/Technotes/files/2002/02-012.pdf JLAB-TN-02-012]: | ||
BigBite Chamber center position are surveyed with laser markers and a hand held laser meter. Error could be between 1mm to 5mm. | BigBite Chamber center position are surveyed with laser markers and a hand held laser meter. Error could be between 1mm to 5mm. | ||
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** Y= unknown | ** Y= unknown | ||
** Z=2.862m | ** Z=2.862m | ||
| − | * Bigbite Magnetic | + | * Bigbite Magnetic in BigBite Target Coordinate System: |
| − | ** @Z=1.590m | + | ** Front Shielding Plate @Z=1.590m |
| + | ** At Beam Height, Edge of Bigbite Coil at Detector Side @Z=2.46m | ||
Revision as of 22:06, 23 September 2008
Contents
BigBite dipole magnet
Electron Package
Electron package layout drawings
Drift Chambers
Gas Cherenkov Detector
Scintillators
Shower/Preshower Detectors
Position Survey
Sept 18. 2008
Notice: Terminology used in this section follows conventions of Hall A Tech Notes JLAB-TN-02-012:
BigBite Chamber center position are surveyed with laser markers and a hand held laser meter. Error could be between 1mm to 5mm.
- Center of 1st Chamber Outer Aluminum Plate in BigBite Target Coordinate System:
- X= -0.072m
- Y= unknown
- Z=2.862m
- Bigbite Magnetic in BigBite Target Coordinate System:
- Front Shielding Plate @Z=1.590m
- At Beam Height, Edge of Bigbite Coil at Detector Side @Z=2.46m
