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TODO: Brief introduction to the project describing the why and the how.

Table of contents

Table of Contents
exclude\b(?:Table of contents|Useful resources)\b|\*

Useful resources

Requirements

Document typeLink
PRD

LCLSII-HE-1.4-PR-0280.docx (Convers SparkPix-S and SparkPix-2M)

IRD

LCLSII-HE-1.4-IR-0881.docx

ICD

DXS: Not found

Data systems: LCLSII-HE-1.4-IC-0499.docx

CXI (LFAD is ePixUHR 4MPix; SFAD is SparkPix-S): LCLSII-HE-1.4-IR-0880.docx

FRD

Detector team needs to create it. See example below for the ePixUHR
LCLSII-HE-1.4-FR-1143.docx

ESD

Detector team needs to create it. See example below for the ePixUHR
LCLSII-HE-1.4-FR-1143.docx

Context: DXS is the primary beamline where this detector will be used therefore its reequipments are considered when designing the SparkPix-S 1x4. The expected beam will be spited into two and a sketch of its dimensions when interacting with the detector is depicted below

Beam concept at the detector


Draft on the concept of beam interaction with the 1x4 carrier. Detector will be pivoted around the center axis, effectively reducing the pixel size. Vibration calculations should be analyzed considering the effective pixel size (10um) 


Sensor Design

  • Pixel pitch is 50um
  • 1mm is the baseline but Hassan has suggested that they may want to have 500um thick sensors two

Design files 

TBD

Summary table


Full sensorLower left cornerBetween two ASICs at the bottomLower right cornerBetween ASICs in the middleTop left cornerTop right corner
Image








Measurements
  • Width (x): µm
  • Height (y):  µm
  • x offset:  µm
  • y offset:  µm
  • x distance:  µm
  • x offset:  µm
  • y offset: µm
  • x offset:  µm
  • y offset:  µm
  • x offset:  µm
  • y offset:  µm
  • x offset:  µm
  • y offset:  µm


Review date:

ASIC Design

Documentation

SparkPix-S (XPCS) complete documentation has restricted access.

Summary table


Full matrixLower left cornerLower right corner
Image




Measurements
  • Width (x):  µm
  • Height (y):  µm
  • With extension (see JIRA??):
    • Width (x): 19306.26+2*70 =  µm
    • Height (y): 18674.7+2*270 =   µm
  • Pad
    • Width (x):  µm
    • Height (y):  µm
    • Pitch: 50 µm
  • First pad location relative to lower-left corner
    • x:  µm
    • y:  µm
  • Last pad location relative to lower-right corner
    • x:  µm
    • y:  µm

Review date:

Platform

The SparkPix-S 1x4 detector is very similar to the GT readout platform and therefore we will reuse it extent possible. For examle, the digital and analog boards are 100% compatible. The carrier boards and mechanical design will need to be adapted.

100kfps DAQ support system - GT Readout Platform


  • Key requirements when designing the board
  • Sensor aligned with rotation axis 

Carrier board

SparkPix-S 1x4 implementation


Multi-board projectCarrier Board
3D view

TODOImage Added

DescriptionA configuration of the GT Readout Platform with a 1x4 carrier of SparkPix-S ASICs.Carrier board for a 1x4 configuration of SparkPix-S ASICs for use with the GT Readout Platform
Altium 365 projecthttps://stanford-linear-accelerator-center.365.altium.com/designs/97303243-7476-464D-8044-63CC0E2FD9C0https://stanford-linear-accelerator-center.365.altium.com/designs/B1145EE9-2A02-4B88-9339-D6492F047ABF
Board trackingGT Readout ASICsPC_261_101_46_C00

Review date:

(Similar board) - ePixUHR100k 1x4 implementation


Multi-board projectCarrier Board
3D view

DescriptionA configuration of the GT Readout Platform with a 1x4 and 4x1 carrier of ePixUHR100k ASICs.Carrier board for a 1x4 configuration of ePixUHR100k ASICs for use with the GT Readout Platform
Altium 365 projecthttps://stanford-linear-accelerator-center.365.altium.com/designs/32095811-C026-416E-BB99-40FCF4FA87F6https://stanford-linear-accelerator-center.365.altium.com/designs/F5AB04C2-2ADF-42DF-B87B-5C40051BA7FC
Board trackingGT Readout ASICsPC_261_101_42_C00


Mechanical

  • Key requirements
  • CO2 cooled
  • 0 degree for cooling pipe and electronics board
  • in-vacuum
  • Clamping can be on the back side of the detector
  • Vibration specs (usually 10% of the pixel at the angle)
  • Light shield needed (at least the frame designed)

Design

Mechanical design files

Drawings with key dimensions

Review date:

Meetings

Project Management

Key upcoming milestones

  • Preliminary Design Review for the SparkPix-S 1x4: 02/2025 (request pending due to project baseline)
  • Preliminary Design Review for the SparkPix-S 2MPix: 02/2025 (request pending due to project baseline)

Smart Sheets Project

Jira project (sharing with Gt readout platform due to reuse: