Skip to content

[ALICE3] TF3: fix kapton fractional Z #15753

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
rliotino99 wants to merge 6 commits into
base: dev
Choose a base branch
from
Open

[ALICE3] TF3: fix kapton fractional Z #15753

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
f8eb46e
Update kaptonMat to use TGeoMixture
rliotino99 Sep 3, 2026
00411ca
Change kaptonMat to TGeoMixture and define elements
rliotino99 Sep 3, 2026
f8f0ac5
Change kaptonMat type from TGeoMaterial to TGeoMixture
rliotino99 Sep 3, 2026
0441d3e
Change kaptonMat type from TGeoMaterial to TGeoMixture
rliotino99 Sep 3, 2026
927abc8
Please consider the following formatting changes
alibuild Sep 3, 2026
899a15f
Merge pull request 15753
rliotino99 Sep 3, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion Detectors/Upgrades/ALICE3/TRKFT3/FT3/simulation/include/FT3Simulation/FT3Layer.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -69,7 +69,7 @@ class FT3Layer : public TObject
static TGeoMaterial* carbonFiberMat;
static TGeoMedium* medCarbonFiber;

static TGeoMaterial* kaptonMat;
static TGeoMixture* kaptonMat;
static TGeoMedium* kaptonMed;

static TGeoMaterial* waterMat;
Expand Down
2 changes: 1 addition & 1 deletion Detectors/Upgrades/ALICE3/TRKFT3/FT3/simulation/include/FT3Simulation/FT3Module.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ class FT3Module
static TGeoMedium* siliconMed;
static TGeoMaterial* copperMat;
static TGeoMedium* copperMed;
static TGeoMaterial* kaptonMat;
static TGeoMixture* kaptonMat;
static TGeoMedium* kaptonMed;
static TGeoMaterial* epoxyMat;
static TGeoMedium* epoxyMed;
Expand Down
9 changes: 7 additions & 2 deletions Detectors/Upgrades/ALICE3/TRKFT3/FT3/simulation/src/FT3Layer.cxx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@ FT3Layer::~FT3Layer() = default;
TGeoMaterial* FT3Layer::carbonFiberMat = nullptr;
TGeoMedium* FT3Layer::medCarbonFiber = nullptr;

TGeoMaterial* FT3Layer::kaptonMat = nullptr;
TGeoMixture* FT3Layer::kaptonMat = nullptr;
TGeoMedium* FT3Layer::kaptonMed = nullptr;

TGeoMaterial* FT3Layer::waterMat = nullptr;
Expand Down Expand Up @@ -97,7 +97,12 @@ void FT3Layer::initialize_mat()
medFoam = new TGeoMedium("FT3_Foam", 1, itsFoam);
foamMat = medFoam->GetMaterial();

kaptonMat = new TGeoMaterial("Kapton (cooling pipe)", 13.84, 6.88, 1.346);
kaptonMat = new TGeoMixture("Kapton (cooling pipe)", 4, 1.346); // C22 H10 N2 O5

kaptonMat->DefineElement(0, 12.0107, 6, 0.5641); // Carbon
kaptonMat->DefineElement(1, 1.00794, 1, 0.2564); // Hydrogen
kaptonMat->DefineElement(2, 14.0067, 7, 0.0513); // Nitrogen
kaptonMat->DefineElement(3, 15.999, 8, 0.1282); // Oxygen
kaptonMed = new TGeoMedium("Kapton (cooling pipe)", 1, kaptonMat);

waterMat = new TGeoMaterial("Water", 18.01528, 8.0, 1.064);
Expand Down
9 changes: 7 additions & 2 deletions Detectors/Upgrades/ALICE3/TRKFT3/FT3/simulation/src/FT3Module.cxx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,7 @@ TGeoMedium* FT3Module::siliconMed = nullptr;
TGeoMaterial* FT3Module::copperMat = nullptr;
TGeoMedium* FT3Module::copperMed = nullptr;

TGeoMaterial* FT3Module::kaptonMat = nullptr;
TGeoMixture* FT3Module::kaptonMat = nullptr;
TGeoMedium* FT3Module::kaptonMed = nullptr;

TGeoMaterial* FT3Module::epoxyMat = nullptr;
Expand Down Expand Up @@ -66,7 +66,12 @@ void FT3Module::initialize_materials()
copperMat = new TGeoMaterial("FT3_Copper", 63.546, 29, 8.96);
copperMed = new TGeoMedium("FT3_Copper", 2, copperMat);

kaptonMat = new TGeoMaterial("FT3_Kapton", 13.84, 6.88, 1.346);
TGeoMixture* kaptonMat = new TGeoMixture("FT3_Kapton", 4, 1.346); // C22 H10 N2 O5

kaptonMat->DefineElement(0, 12.0107, 6, 0.5641); // Carbon
kaptonMat->DefineElement(1, 1.00794, 1, 0.2564); // Hydrogen
kaptonMat->DefineElement(2, 14.0067, 7, 0.0513); // Nitrogen
kaptonMat->DefineElement(3, 15.999, 8, 0.1282); // Oxygen
kaptonMed = new TGeoMedium("FT3_Kapton", 3, kaptonMat);

// TODO: Check with Rene the exact type of carbon fiber
Expand Down
Loading