[Gate-users] Multiple detectors (responses) with Fixed Forced Detection

[Clemens S.]

Dear Simon,

this sound perfect! Thank you very much.

Kind regards
Clemens

2017-10-04 10:31 GMT+02:00 Simon Rit <simon.rit at creatis.insa-lyon.fr>:

> Hi,
> What I do is record one spectral projection by setting the
> energyResolvedBinSize to 1 keV and a detector response d(e)=1 with a text
> file that looks like this:
> 0 1
> 1 1
> I obtain then a 3 image for each run where the 3rd dimension is the
> energy. I use this result offline to create the projection of each
> threshold separately.
> I don't know when this option was added wrt to Gate 7.2, you might have to
> update your Gate.
> Simon
>
> On Wed, Oct 4, 2017 at 10:18 AM, Clemens S. <clem.schmid at gmail.com> wrote:
>
>> Dear fellow GATE users,
>>
>> I am simulating spectral CT with *Fixed Forced detection* in GATE 7.2. I
>> am simulating one physical detector which has several energy threshold,
>> i.e. *several detector responses*. Each detector response produces its
>> own output (primary and scatter images).
>>
>> Up to now, I'm using one FFD actor for each threshold/response. This
>> gives correct results, but is not optimally efficient since the interaction
>> points are projected onto the detectors indepentently instead of projecting
>> once (conserving energy information) and *then* applying the detector
>> responses. (or I think that's what's happening)
>>
>> *My question is*: Is there a (more) efficient way to simulate several
>> detector responses with FFD?
>>
>> Thank you for your help!
>>
>> Kind regards
>> Clemens Schmid
>>
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>
>
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