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Bug #18057

Active volume does not reach the cathode

Added by Gianluca Petrillo over 2 years ago. Updated about 1 month ago.

Status:
Rejected
Priority:
Normal
Assignee:
-
Start date:
10/27/2017
Due date:
% Done:

0%

Estimated time:
Duration:

Description

In the current ICARUS geometry, the active volume of TPCs ends about 0.56 centimetres away from the cathode.
This causes Geant4 not to deposit any energy in that volume. This gap should be verified and fixed is needed.
(see also SBND issue #18056)

EnergyDepositionProjectionXY.root (480 KB) EnergyDepositionProjectionXY.root Energy deposition X-Y projection (v08_50_00, 2 cosmic ray events) Gianluca Petrillo, 04/28/2020 02:58 PM
EnergyDepositionProjectionXY.pdf (768 KB) EnergyDepositionProjectionXY.pdf Energy deposition X-Y projection: detail on C:0 cathode Gianluca Petrillo, 04/28/2020 02:58 PM

Related issues

Related to SBND code - Bug #18056: Active volume does not reach the cathodeAssigned10/27/2017

History

#1 Updated by Gianluca Petrillo over 2 years ago

  • Related to Bug #18056: Active volume does not reach the cathode added

#2 Updated by Gianluca Petrillo almost 2 years ago

  • Project changed from ICARUS to ICARUS LArSoft

#3 Updated by Tracy Usher over 1 year ago

Does this issue have a status update? Can it be closed?

#4 Updated by Tracy Usher over 1 year ago

Tracy Usher wrote:

Does this issue have a status update? Can it be closed?

If no update by end of next week then will close this issue.

#5 Updated by Gianluca Petrillo about 1 month ago

  • Status changed from New to Rejected

I have drawn the energy deposition coordinates from two cosmic ray events generated yesterday. Geometry is with single first induction wires.
The energy depositions are split in in-active-volume and "other".
I observe a gap of 1.5 mm at the cathode position for the in-active-volume.
Tracks are clearly visible, and for a few of them there are aligned energy deposits from the "other" in that gap.
The relevant plot, zoomed in the interesting region, will be attached, if Redmine decides to allow me to.

In the GDML description, cathode is 1.5 mm thick. From my point of view everything is ok at geometry and GEANT4 simulation level.



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