======= Documentation ======= **Articles:**\\ [[http://dx.doi.org/10.1109/TNS.2008.924067| AFTER, an ASIC for the Readout of the Large T2K Time Projection Chambers]]\\ {{T2K_jpconf7_65_012018.pdf |A TPC for the Near Detector at T2K: Lux, Journal of Physics Conference Series 65, 012018, 2007.}} {{T2K_jpconf7_65_012019.pdf |Testbench for the Characterization of MicroMegas Modules of the T2K ND280 TPC: Marco, Journal of Physics Conference Series 65, 012019, 2007.}} **FemStuc:**\\ {{:femstuc-user-manuel.pdf|FEM-STUC User Manual}} **After (ASIC):**\\ {{:after_manual_v1.pdf| Manual v.1}}\\ {{:after_connection_polarite.pdf| How to change the input polarity }} **FEC:**\\ {{:fec_design.pdf|Description of the layout and functions of the FEC cards : Xavier De La Broïse}} **FEM:**\\ (Table of contents) {{:fem_design_note_index.pdf|TOC for the FEM design note}} \\ (Main text) {{:design_notes.pdf|FEM design note: Denis Calvet}} **DCC**\\ {{:daqdccparameters.pdf|DCC parameter definitions}}\\ {{:dcc_kit_daq_user_manual_v1.pdf|DCC Kit Daq user manual}} ===== ======= Front End Card (FEC) ======= Here are the dimensions of the FEC board : \\ \\ The design of the printed circuit of the ASIC prototypes test card has validated the space required for the components and routing in the FEC card : 250 mm x 140 mm. Indeed the minimal value for the length of the board (250 mm) is imposed by the length of the four input connectors plus the gap between the two central connectors (this gap is required by a central mechanical piece of the detector structure). The width of the board (140 mm) cannot be noticeably reduced without causing difficulties in PCB routing. \\ {{:FEC_LayerDiagram.jpg|:FEC_LayerDiagram.jpg}} {{:FEC_LayerDiagramText.jpg|:FEC_LayerDiagramText.jpg}} \\ (source: frederic.druillole@cea.fr) Below is a picture of a prototype version of the FEC testcard that shows the connectors and gap required to accommodate the T2K central mechanical piece mentioned above. \\ {{:FEC_TestCard.jpg|:FEC_TestCard.jpg}} (source: P. Baron slides, ACTAR Meeting, Jan 23, 2008) ======= Front End Mezzannine (FEM) ======= Concerning the FEM board, it is still in prototype phase so the dimension are not still official. It will be by the end of june. (source: frederic.druillole@cea.fr)