[Gate-users] Gate-users Digest, Vol 90, Issue 20

[d Last namearefan]

Hi
Can any one send me macfile for simulation of ion chamber in Gate??

Best Regards





On Friday, November 29, 2013 3:10 PM, "gate-users-request at lists.opengatecollaboration.org" <gate-users-request at lists.opengatecollaboration.org> wrote:
 
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Today's Topics:

   1. GateMaterials.db (???)
   2. Re: GateMaterials.db (Michaela Gaens)


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Message: 1
Date: Fri, 29 Nov 2013 17:41:13 +0900
From: ??? <somni0728 at gmail.com>
To: gate-users at lists.opengatecollaboration.org
Subject: [Gate-users] GateMaterials.db
Message-ID:
    <CALd+2hDJJTiJgem8PHqt3rMS0SpB=P0tz_DmjGxMwQa6qsQjyA at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

Dear gate users

I have a question about the gatematerial.db in the gate v6.2 directory.

I know that the density of LYSO is the 7.3. But the density in the
gatematerial.db is the 5.37. The density of BGO and LSO is 7.13, 7.4 as you
know.
Is the density of LYSO correct or the modify the this property.

I am highly appreciated if anyone can help me!



-- 
================================

Han Baek Shin, M.S. Candidate

MiRe (Molecular Imaging Research & Education) Lab.
Department of Electronic Engineering,
Sogang University
1, Shinsu-Dong, Mapo-Gu, Seoul, South Korea 121-742
Tel : +82-2-713-2652
Mobile : +82-10-9096-6795
e-mail : somni0728 at gmail.com

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Message: 2
Date: Fri, 29 Nov 2013 10:03:28 +0100
From: Michaela Gaens <m.gaens at fz-juelich.de>
To: ??? <somni0728 at gmail.com>,
    <gate-users at lists.opengatecollaboration.org>
Subject: Re: [Gate-users] GateMaterials.db
Message-ID: <52985860.6060705 at fz-juelich.de>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Hello,

you're right, I have also made the experience that the LYSO definition in the GATE database does not match the properties of the scanner's crystals. However, this does not affect the density alone, it is actually a matter of the ratio of Lutetium to Yttrium atoms. As far as I remember the mass fractions in the GATE definition correspond to a ratio of 30:70 in the number of Lutetium to Yttrium atoms, while actually a ratio of 90:10 seems to be more common for LYSO (taking these numbers from my head now, so don't rely on them ;))

If you want to adapt the values to your situation, you should make sure to change the ratio accordingly as well.

Hope this helps.

Michaela

On 11/29/2013 09:41 AM, ??? wrote:
Dear gate users

I have a question about the gatematerial.db in the gate v6.2 directory.

I know that the density of LYSO is the 7.3. But the density in the gatematerial.db is the 5.37. The density of BGO and LSO is 7.13, 7.4 as you know.
Is the density of LYSO correct or the modify the this property.

I am highly appreciated if anyone can help me!



--
================================

Han Baek Shin, M.S. Candidate

MiRe (Molecular Imaging Research & Education) Lab.
Department of Electronic Engineering,
Sogang University
1, Shinsu-Dong, Mapo-Gu, Seoul, South Korea 121-742
Tel : +82-2-713-2652
Mobile : +82-10-9096-6795
e-mail : somni0728 at gmail.com<mailto:somni0728 at gmail.com>

================================



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