SketchUp STAR

3D models of the STAR detector, the RHIC accelerator complex, a prototype of an event display for the STAR experiment in SketchUp

 

Tai Sakuma

 

I drew the STAR detector and the RHIC accelerator complex in SketchUp. Also, I built a prototype of an event display for the STAR experiment by using SketchUp Ruby API. This page shows image files generated in this project.

 

The STAR detector

A cross sectional view of the STAR detector. This figure was used in Phys. Rev. D 86, 032006 (2012) (DOI: 10.1103/PhysRevD.86.032006 )

The same 3D model as in the previous figure but in perspective. This figure has been often used in presentations at scientific meetings.

RHIC

The RHIC accelerator complex

STAR detector subsystems

The Beam-Beam Counters (BBC)

The Barrel Electromagnetic Calorimeter (BEMC)

A BEMC Module

The geometry of the calorimeter towers in a BEMC module

The Time Projection Chamber (TPC)

The solenoidal magnet subsystem

Jet η and detector η

Jet η and detector η

Jets at three levels

The following three figures illustrate jets defined at the three different levels. These figures have been used several times in scientific meetings, e.g., the slide 4 of a presentation at APS 2010 .

A high-p_T back-to-back dijet event at the detector level. The solid trajectories indicate TPC track measurements while the lego blocks indicate energy deposited in the BEMC towers.

A high-p_T back-to-back dijet event at the hadron level

A high-p_T back-to-back dijet event at the parton level

Jet Patch Trigger

The locations of the twelve jet patches of the BJP1 trigger in Run 6. The size of a jet patch is 1.0x1.0 in the η-φ coordinate system. Each jet patch contains 400 BEMC towers. This figure was used in Phys. Rev. D 86, 032006 (2012) (DOI: 10.1103/PhysRevD.86.032006 )

Event Display

I developed a prototype of an event display for the STAR experiment using the SketchUp Ruby API. This prototype was used in jet analyses, in particular, in establishing a jet definition and determining background events.

Two snapshots showing a prototype of an event display for the STAR experiment