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Microscope Electronics (view source)
Revision as of 13:45, 20 September 2013
, 13:45, 20 September 2013no edit summary
The GlueX experiment will use a 9 GeV linearly polarized photon beam to search for mesons with gluonic excitations, and measure their spectrum and couplings. To create a well-collimated photon beam, the 12 GeV electron beam from CEBAF will pass through a 20um thick diamond wafer and undergo coherent bremsstrahlung. In order to know the energy of the photon the post-bremsstrahlung electron energy must be measured. A magnet is used to spatially separate the electrons corresponding to their energy which are incident on scintillating fibers. These fibers are located to provide 4 MeV energy resolution and propagate the signal to Silicon Photomultiplier (SiPM) counters that are mounted on custom high speed circuit boards. The scintillating fibers and electronics are housed in a light-sealed enclosure called the Tagger Microscope, which the research group at the University of Connecticut have designed to measure the post-bremsstrahlung electron energy, and therefore, the emitted photon energy.
The GlueX experiment will use a 9 GeV linearly polarized photon beam to search for mesons with gluonic excitations, and measure their spectrum and couplings. To create a well-collimated photon beam, the 12 GeV electron beam from CEBAF will pass through a 20um thick diamond wafer and undergo coherent bremsstrahlung. In order to know the energy of the photon the post-bremsstrahlung electron energy must be measured. A magnet is used to spatially separate the electrons corresponding to their energy which are incident on scintillating fibers. These fibers are located to provide 4 MeV energy resolution and propagate the signal to Silicon Photomultiplier (SiPM) counters that are mounted on custom high speed circuit boards. The scintillating fibers and electronics are housed in a light-sealed enclosure called the Tagger Microscope, which the research group at the University of Connecticut have designed to measure the post-bremsstrahlung electron energy, and therefore, the emitted photon energy.
=== Preamplifier ===
=== Preamplifier ===
*[http://zeus.phys.uconn.edu/wiki/index.php/File:PreampV2.jpg '''Picture of Preamp V2.0''']
*[http://zeus.phys.uconn.edu/wiki/index.php/File:PreampV2.jpg '''Picture of Preamp V2.0''']
*[[List of Board Changes]]
*[[List of Board Changes]]
=== Digital Control Board ===
=== Digital Control Board ===
*[https://drive.google.com/folderview?id=0B2pRO1LYzOwHNFRkVGE1bEwzd1k&usp=sharing '''Final Production Control Board Logbooks''']
*[https://drive.google.com/folderview?id=0B2pRO1LYzOwHNFRkVGE1bEwzd1k&usp=sharing '''Final Production Control Board Logbooks''']
=== Backplane ===
=== Backplane ===
*[https://drive.google.com/folderview?id=0B2pRO1LYzOwHbmdzTWdtNVhhNVU&usp=sharing '''Final Production Backplane Logbooks''']
*[https://drive.google.com/folderview?id=0B2pRO1LYzOwHbmdzTWdtNVhhNVU&usp=sharing '''Final Production Backplane Logbooks''']
*[http://zeus.phys.uconn.edu/wiki/images/FinalProductionBackplane.pdf Final production pdf containing the schematics and layer-by-layer Altium drawings]
*[http://zeus.phys.uconn.edu/wiki/images/FinalProductionBackplane.pdf Final production pdf containing the schematics and layer-by-layer Altium drawings]
== Hamamatsu MPPC SiPMs ==
== Hamamatsu MPPC SiPMs ==
*[[media:Package.pdf|Package and Pad layout]]
*[[media:Package.pdf|Package and Pad layout]]
*[[media:Hamamatsu SiPM MMPC spec sheet.pdf|Hamamatsu MMPC spec sheet]]
*[[media:Hamamatsu SiPM MMPC spec sheet.pdf|Hamamatsu MMPC spec sheet]]
== Pulse Generator ==
== Pulse Generator ==
*[http://zeus.phys.uconn.edu/wiki/index.php/File:IMG_20120309_173350.jpg Picture of Pulse Generator]
*[http://zeus.phys.uconn.edu/wiki/index.php/File:IMG_20120309_173350.jpg Picture of Pulse Generator]
*[https://docs.google.com/a/uconn.edu/document/d/1CPsms64eeuY8-0f-OfW85xeqLvxdH1gx9Rk-Wd4UuB0/edit Jon Kulakofsky's pulse generator fixing notes]
*[https://docs.google.com/a/uconn.edu/document/d/1CPsms64eeuY8-0f-OfW85xeqLvxdH1gx9Rk-Wd4UuB0/edit Jon Kulakofsky's pulse generator fixing notes]
== Presentations ==
== Presentations ==
*[http://zeus.phys.uconn.edu/wiki/index.php/File:Gluex_Collaboration_Meeting_May_2012.pptx '''Gluex Collaboration Meeting May 2012''']
*[http://zeus.phys.uconn.edu/wiki/index.php/File:Gluex_Collaboration_Meeting_May_2012.pptx '''Gluex Collaboration Meeting May 2012''']
*[http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=2155 '''Gluex Collaboration Meeting Feb. 2013''']
*[http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=2155 '''Gluex Collaboration Meeting Feb. 2013''']
== Past Work ==
== Past Work ==
*[http://zeus.phys.uconn.edu/wiki/index.php/Design_and_prototyping_of_SiPM_electronics '''Design and Prototyping of SiPM Electronics'''] - [[User: Senderovich|Igor Senderovich]]
*[http://zeus.phys.uconn.edu/wiki/index.php/Design_and_prototyping_of_SiPM_electronics '''Design and Prototyping of SiPM Electronics'''] - [[User: Senderovich|Igor Senderovich]]