Hybrid ND geometry study Chang Kee Jung Clark McGrew Jose Palomino - PowerPoint PPT Presentation

Hybrid ND geometry study Chang Kee Jung Clark McGrew Jose Palomino Xin Qian Brett Viren Guang Yang Jan. 2017 DUNE ND workshop 1

Hybrid ND - A combination of Ar detector and tracker - measure the Ar cross section as well as the detector-related uncertainties - High correlation of systematics to the FD is expected - In addition to the three individual ND designs, another possibility (as shown by Chang Kee) - May be flexible for all detector combinations, such as nuPRISM-like detector + FGT design. Jan. 2017 DUNE ND workshop 2

Hybrid ND - Generate the geometry - Do simulation and use the true info. to find good designs (might be CAPTAIN-Minerva-like simulation, being implemented by Clark) - Above will give a sense of the control of flux and cross section uncertainties - Then apply reconstructions to understand the detector-related errors - Group has been formed and weekly meeting has been started - Current members: Chang Kee Jung, Clark McGrew, Jose Palomino and Guang yang from Stony Brook and Brett Viren and Xin Qian from Brookhaven. Jan. 2017 DUNE ND workshop 3

Current status - Preliminary geometry has been done with GeGeDe package - Flexible for different kinds of detector design - Simulation is being developed - In this talk, details of the geometry generation will be described Jan. 2017 DUNE ND workshop 4

GeGeDe - Written in Python by Brett https://github.com/brettviren/gegede/blob/master/doc/install.org - The General Geometry Description (GGD) is a software system to generate a description of a constructive solid geometry specifically as used by Geant4 or ROOT applications are as represented in GDML files. Params: high level, human-centric configuration mechanism Builders: structured, procedural geometry constructor code Objects: the in-memory representation of the final geometry Exports: conversion to formats suitable to exchange the data with other applications Jan. 2017 DUNE ND workshop 5

GeGeDe - Tylor Alion has been using GGD to create geometry for FGT. https://github.com/DUNE/duneggd/tree/master /python/duneggd/fgt - Jose and Guang are inserting a package named dunehnd in duneggd. - The dunehnd can build geometry itself OR call the builders in duneggd, the duneggd can also call dunehnd’s builders. - Currently, there is NO fixed design so ND design is easy to change and different configurations can be quickly tested. Jan. 2017 DUNE ND workshop 6

DUNEHND https://github.com/gyang9/GuJo - Hierarchy of dunehnd LArD PRIMDec Strip/Wire Tracker Module Plane World DetEnc Magnet Downstream ECal Module Plane Strip SECDec Barrel ECal Downstream Hcal (MuID) Barrel Hcal (MuID) Jan. 2017 DUNE ND workshop 7

DUNEHND – Documentation - Documentation will be finished in detail at https://palominogallo.github.io/dunehnd_doc/html/ - Is being developed by Jose. Jan. 2017 DUNE ND workshop 8

Example ND generated by dunehnd itself Downstream ECal FGT tracker Downstream MuID Lar Detector - All basic elements are there. Magnet - Easy to change dimensions, Barrel ECal locations, materials and designs. - All sub-builder classes are done, i.e. construction structure done. - Detailed elements such as scintillator bars, RPC and straw tubes will be added. Jan. 2017 DUNE ND workshop 9

DUNEHND – reverse LarD and tracker Downstream ECal Lar detector Downstream MuID FGT tracker Magnet Barrel ECal - All dimensions, positions, materials and designs can be easily changed. Jan. 2017 DUNE ND workshop 10

Call existing builders in duneggd - In duneggd, detailed Straw tube tracker, barrel, upstream and downstream ECal and MuID and magnets exist, so dunehnd can use those builders directly. - Ar-like detector or tank target is added additionally. - Existing elements and additional elements can be easily removed or added. - Dimensions, locations, materials and designs can be quickly change in the dunehnd configuration files. Jan. 2017 DUNE ND workshop 11

Call builders of FGT tracker, barrel and downstream ECal in duneggd Target Downstream ECal Target and Straw tube plane alternatively LAr Detector Barrel ECal Jan. 2017 DUNE ND workshop 12

Call builders of MuID (rpc) and magnets in duneggd Can add the MuID tracker or magnets easily Jan. 2017 DUNE ND workshop 13

Changing the order of Lar detector and tracker -The FGT tracker can be different styles: Scintillator bars Straw tubes Jan. 2017 DUNE ND workshop 14

Design is NOT fixed, will test different configurations HP gas Ar TPC + pixel readout at the end Downstream ECal Target Pixel readout Barrel ECal HP Ar Gas FGD Jan. 2017 DUNE ND workshop 15

Summary - An ad hoc working group has been formed to explore hybrid ND configurations. Everyone is welcomed to join the group. - A hybrid ND geometry generation package “dunehnd” has been created. - Different ND configurations could be implemented. - Simulation of different geometries is being developed. Aim to optimize the Hybrid ND design with this study. Jan. 2017 DUNE ND workshop 16