[Gate-users] Derenzo Phantom

[Sadek Nehmeh]

Many thanks Matthew. This is great.

Regards,
Sadek

From: Matthew Strugari <matthew.strugari at dal.ca>
Sent: Wednesday, March 3, 2021 4:13 PM
To: Sadek Nehmeh <san2028 at med.cornell.edu>; Gate-users <gate-users at lists.opengatecollaboration.org>
Subject: [EXTERNAL] Re: Derenzo Phantom

Hi Sadek,

Here is a link<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.mathworks.com_matlabcentral_fileexchange_72931-2Dderenzo-2Dphantom-2Dvertex-2Dposition-2Dcalculator&d=DwMF-g&c=lb62iw4YL4RFalcE2hQUQealT9-RXrryqt9KZX2qu2s&r=bODZaHu4t9SeLaNu3e-gcyQNK7Ek7-wqMqF1OzDgM6o&m=Af9p-Mx3v1x0OnvT4bZmWW19mzlHcdAwKlngl8Cn2CY&s=3Z3Dxl9fNA64fcwRxa6Gk6MtQcUUBf9NUGcs40tvYpo&e=> to a matlab program that I wrote for calculating the vertex positions of a Derenzo phantom.

>From there, you can define your phantom mac file along the following lines from the quadrant definition:

/gate/Derenzo/daughters/name                hole1
/gate/Derenzo/daughters/insert                cylinder
/gate/hole1/setMaterial                               material
/gate/hole1/geometry/setRmin                 0. mm
/gate/hole1/geometry/setRmax                Radius mm # radius defined in matlab program
/gate/hole1/geometry/setHeight              Height mm # user-defined height
/gate/hole1/placement/setTranslation   x y z mm # x and y printed from matlab program, user-defined z
/gate/hole1/repeaters/insert                      quadrant
/gate/hole1/quadrant/setLineNumber    N # number of rows in triangular pattern specified in matlab program
/gate/hole1/quadrant/setOrientation     theta deg # angular orientation defined by direction of line repetition
/gate/hole1/setCopySpacing                       4xRadius mm # matlab program assumes space between holes and diameter of holes are equal
/gate/hole1/quadrant/setMaxRange       xx mm # define max range to remove corner-copies of holes falling outside of your Derenzo volume

You can then repeat this for each triangular region in your phantom macro file. I don't not have a specific configuration for the source macro, but you should be able to extract/extend what you need from this approach. Let me know if you have any questions.

HTH,
Matthew


From: Gate-users <gate-users-bounces at lists.opengatecollaboration.org<mailto:gate-users-bounces at lists.opengatecollaboration.org>> on behalf of Sadek Nehmeh <san2028 at med.cornell.edu<mailto:san2028 at med.cornell.edu>>
Date: Wednesday, March 3, 2021 at 15:28
To: Gate-users <gate-users at lists.opengatecollaboration.org<mailto:gate-users at lists.opengatecollaboration.org>>
Subject: [Gate-users] Derenzo Phantom
CAUTION: The Sender of this email is not from within Dalhousie.
Hi Gate Users,

Does anyone have the phantom and source mac files for the Derenzo phantom?

Thanks,
Sadek Nehmeh
Weill Cornell Medicine, NY
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