[Gate-users] Gate-users Digest, Vol 133, Issue 21
Emmanuel Marfo
emmanuel.marfo at postgrad.otago.ac.nz
Mon Jun 19 13:56:58 CEST 2017
Thanks for your help
Please, I wanted to be more clear about how to use the factor 1e3 and what is stands for. The doseActor recorded the dose from x-ray photon as a result of simulating x-ray tube.
I have three sets of matrices as shown below and do you mean summing up all (1), (2) and (3). and applying the factor to them Or only (1).
dose-Dose.txt results below
####################################
# Matrix Size= (30,30,100)
# Resol = (3,3,3)
# VoxelSize = (10,10,33.3333)
# nbVal = 27
####################################
(1)
0 2.91567e-16 1.50026e-16
2.12823e-15 0 9.82923e-16
3.88865e-16 8.70861e-17 0
(2)
9.37421e-16 4.02513e-16 2.39178e-16
2.45852e-15 1.31518e-15 1.16541e-15
2.83336e-16 1.67185e-15 7.54853e-16
(3)
4.35782e-16 2.92369e-15 2.27169e-17
1.29056e-15 3.10294e-16 2.41884e-16
4.62013e-16 5.65456e-15 6.52056e-16
Best regards,
Emmanuel Marfo
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Subject: Gate-users Digest, Vol 133, Issue 21
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Today's Topics:
1. Re: Assessing Gate-User mailing list archives and Dose
calculation (Elia Alessio)
2. Re: Assessing Gate-User mailing list archives and Dose
calculation (maikol salas ramirez)
----------------------------------------------------------------------
Message: 1
Date: Mon, 19 Jun 2017 07:34:52 +0000
From: Elia Alessio <alessio.elia at medaustron.at>
To: Emmanuel Marfo <emmanuel.marfo at postgrad.otago.ac.nz>
Cc: "gate-users at lists.opengatecollaboration.org"
<gate-users at lists.opengatecollaboration.org>
Subject: Re: [Gate-users] Assessing Gate-User mailing list archives
and Dose calculation
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<AM2PR04MB0659576D1517CFA5747B9FFE8CC40 at AM2PR04MB0659.eurprd04.prod.outlook.com>
Content-Type: text/plain; charset="utf-8"
Hi Emmanuel,
1. There should be an archive for that but I do not know if it is still keep updated.. sorry I cannot provide more info so far but honestly I would be also interested to know a precise answer to this point.
2. If I understood correctly your output I think you simply have to sum up the dose values you have already obtained. This will give you the dose in your box in Gy, then you need a factor 1e3 for mGy unit. Only one comment: if you look at the first matrix (slice) of your output you have a set of zeros due to the resolution you used in your simulation! ( ...but maybe you did it on purpose...? )
Hope it can help!
Cheers
Alessio
From: Gate-users [mailto:gate-users-bounces at lists.opengatecollaboration.org] On Behalf Of Emmanuel Marfo
Sent: Sonntag, 18. Juni 2017 11:47
To: gate-users at lists.opengatecollaboration.org
Subject: [Gate-users] Assessing Gate-User mailing list archives and Dose calculation
Hi Gate-Users,
1.Please, how do you assess some of the previous questions already answered on the mailing list platform?.
2.Please, I used the Dose Actor for my simulation with ASCII(.txt) format and had the results below. Any idea How to find the total dose in mGy will be appreciated. Thanks
dose-Dose.txt results below
####################################
# Matrix Size= (30,30,100)
# Resol = (3,3,3)
# VoxelSize = (10,10,33.3333)
# nbVal = 27
####################################
0 2.91567e-16 1.50026e-16
2.12823e-15 0 9.82923e-16
3.88865e-16 8.70861e-17 0
9.37421e-16 4.02513e-16 2.39178e-16
2.45852e-15 1.31518e-15 1.16541e-15
2.83336e-16 1.67185e-15 7.54853e-16
4.35782e-16 2.92369e-15 2.27169e-17
1.29056e-15 3.10294e-16 2.41884e-16
4.62013e-16 5.65456e-15 6.52056e-16
Best regards,
Emmanuel Marfo
University of Otago
Student
Disclaimer:
Please notice our E-Mail Disclaimer http://www.medaustron.at/email-disclaimer/
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Message: 2
Date: Mon, 19 Jun 2017 10:03:55 +0200
From: maikol salas ramirez <mmsalas at gmail.com>
To: Emmanuel Marfo <emmanuel.marfo at postgrad.otago.ac.nz>
Cc: "gate-users at lists.opengatecollaboration.org"
<gate-users at lists.opengatecollaboration.org>
Subject: Re: [Gate-users] Assessing Gate-User mailing list archives
and Dose calculation
Message-ID:
<CAAGVOV=-jr+GqrYLDODGRTEWmHffHW9aHVhAB5opXAFaSV23XA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hi Emmanuel
To transform your Matrix into Dose-Matrix, it is necessary some input:
1- Number of particules that you simulate.
2- Yield of the radionuclide that you are using (part.Bq-1.s-1). Normally
you can get it from MIRD Book "MIRD: Radionuclide Data and Decay Schemes"
(CD-Software) or ICRP 107 (
http://www.icrp.org/publication.asp?id=ICRP%20Publication%20107)
I recommend you read the README.txt from the internal dosimetry example:
http://www.opengatecollaboration.org/Examples
At least it is the way that I used. Actually there is something pretty
tricky that I don´t have explanation. Always I had to normally the number
of particles to 10^9 to achieve a right dose quantification, I realized
that comparing my voxel simulation with the values of these two simulation:
http://onlinelibrary.wiley.com/doi/10.1118/1.4812684/full
http://www.medphys.it/down_svoxel.htm
In someway before you run a complete dose quantification, could be good
verify your source to see if everything is fine. One option is to use
OLINDA sphere models, or the previous voxel publications.
Best regards
2017-06-18 11:47 GMT+02:00 Emmanuel Marfo <
emmanuel.marfo at postgrad.otago.ac.nz>:
> Hi Gate-Users,
>
> 1.Please, how do you assess some of the previous questions already
> answered on the mailing list platform?.
>
> 2.Please, I used the Dose Actor for my simulation with ASCII(.txt) format
> and had the results below. Any idea How to find the total dose in mGy will
> be appreciated. Thanks
>
>
> dose-Dose.txt results below
>
> ####################################
> # Matrix Size= (30,30,100)
> # Resol = (3,3,3)
> # VoxelSize = (10,10,33.3333)
> # nbVal = 27
> ####################################
> 0 2.91567e-16 1.50026e-16
> 2.12823e-15 0 9.82923e-16
> 3.88865e-16 8.70861e-17 0
>
> 9.37421e-16 4.02513e-16 2.39178e-16
> 2.45852e-15 1.31518e-15 1.16541e-15
> 2.83336e-16 1.67185e-15 7.54853e-16
>
> 4.35782e-16 2.92369e-15 2.27169e-17
> 1.29056e-15 3.10294e-16 2.41884e-16
> 4.62013e-16 5.65456e-15 6.52056e-16
>
> Best regards,
>
> Emmanuel Marfo
>
> University of Otago
>
> Student
>
> _______________________________________________
> Gate-users mailing list
> Gate-users at lists.opengatecollaboration.org
> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users
>
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