DTC optimization: Difference between revisions

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== Results ==
== Results ==
=== Resolution ===
All following values are given in units of Water Equivalent Thickness! (Except the absorber thicknesses)
All following values are given in units of Water Equivalent Thickness! (Except the absorber thicknesses)


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{| class="wikitable"
{| class="wikitable"
|-
|-
! Material !! Thickness !! <math>\Delta t / \sqrt{12}</math> WEPL !! Resolution !! Excess straggling !! Pre-straggling resolution !! Layers for 230 MeV + <math>5\sigma</math>
! Material !! Thickness !! <math> t / \sqrt{12}</math> WEPL !! Resolution !! Excess straggling !! Pre-straggling resolution !! Layers for 230 MeV + <math>5\sigma</math>
|-
|-
| Al || 2 mm || 1.5 mm || 4.16 mm || 6.1% || 1.38 mm || 67
| Al || 2 mm || 1.5 mm || 4.16 mm || 6.1% || 1.38 mm || 67
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| Al || 4 mm || 2.7 mm || 4.35 mm || 12.4% || 1.97 mm || 39
| Al || 4 mm || 2.7 mm || 4.35 mm || 12.4% || 1.97 mm || 39
|-
|-
| Al || 5 mm || 3.3 mm || || || ||
| Al || 5 mm || 3.3 mm || 4.50 mm || 16.4% || 2.28 mm || 32
|-
| Al || 6 mm || 3.9 mm || 4.70 mm || 23.3% || 2.73 mm || 27
|-
|-
| Al || 6 mm || 3.9 mm || || || ||
| Al || 7 mm || 4.5 mm || 4.76 mm || 26.0% || 2.78 mm || 23
|-
|-
| Al || 7 mm || 4.5 mm || || || ||
| Loma Linda || N/A || N/A || 4.1 mm* || N/A || N/A || N/A
|-
| FOCAL || 32 mm || 9.2 mm || 15.6 mm** || N/A || N/A || 11
|}
|}


* At 200 MeV. Scintillator measurements, res. does not scale linearly with depth.
** Resolution scaled to 230 MeV from 188 MeV


[[File:resolution_2mm.png|1200px]]
[[File:resolution_2mm.png|1200px]]
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[[File:resolution_4mm.png|1200px]]
[[File:resolution_4mm.png|1200px]]
[[File:resolution_5mm.png|1200px]]
[[File:resolution_6mm.png|1200px]]
[[File:resolution_7mm.png|1200px]]
=== Accuracy ===
[[File:accuracy_2mm.png|800px]]
[[File:accuracy_3mm.png|800px]]
[[File:accuracy_4mm.png|800px]]
[[File:accuracy_5mm.png|800px]]
[[File:accuracy_6mm.png|800px]]
[[File:accuracy_7mm.png|800px]]

Latest revision as of 09:17, 30 March 2017

Geometry and segmentation optimization of the Digital Tracking Calorimeter

Optimization philosophy

Geometry

Geometry.PNG

Materials

Software

The software for this project is Gate installation and the DTC toolkit. For a complete guide to use the software for optimization, see the page Software for design optimization.

Results

Resolution

All following values are given in units of Water Equivalent Thickness! (Except the absorber thicknesses)

How many layers are needed?

Pre-straggling resolution is the contribution to the total resolution from the detector smearing. This is calculable because we know the range straggling from Monte Carlo simulations, and the pre-straggling resolution is a subtraction in quadrature.

Material Thickness [math]\displaystyle{ t / \sqrt{12} }[/math] WEPL Resolution Excess straggling Pre-straggling resolution Layers for 230 MeV + [math]\displaystyle{ 5\sigma }[/math]
Al 2 mm 1.5 mm 4.16 mm 6.1% 1.38 mm 67
Al 3 mm 2.1 mm 4.26 mm 9.2% 1.69 mm 48
Al 4 mm 2.7 mm 4.35 mm 12.4% 1.97 mm 39
Al 5 mm 3.3 mm 4.50 mm 16.4% 2.28 mm 32
Al 6 mm 3.9 mm 4.70 mm 23.3% 2.73 mm 27
Al 7 mm 4.5 mm 4.76 mm 26.0% 2.78 mm 23
Loma Linda N/A N/A 4.1 mm* N/A N/A N/A
FOCAL 32 mm 9.2 mm 15.6 mm** N/A N/A 11
* At 200 MeV. Scintillator measurements, res. does not scale linearly with depth.
** Resolution scaled to 230 MeV from 188 MeV

Resolution 2mm.png

Resolution 3mm.png

Resolution 4mm.png

Resolution 5mm.png

Resolution 6mm.png

Resolution 7mm.png

Accuracy

Accuracy 2mm.png

Accuracy 3mm.png

Accuracy 4mm.png

Accuracy 5mm.png

Accuracy 6mm.png

Accuracy 7mm.png