Dear Luigi,
thank you very much for your answer.
I was using flair for the merging of the data, so the uncertainties
should be right... ?
Best,
Kilian
Am 20.07.2016 um 16:06 schrieb Luigi Salvatore Esposito:
> Dear Kilian,
> for a cylindrical scoring the result is in GeV/cm3, i.e. it is divided by the bin volume,
> whereas in the scoring by region the result is in GeV, i.e. it is not divided by the region volume.
> See note 13 of the USRBIN section in the manual.
> Concerning the error, they are normally the same, therefore I suspect there is an error on your side.
> Best regards, luigi
>
>> On 20 Jul 2016, at 14:45, Kilian Baumann <baumann.kilian_at_gmail.com> wrote:
>>
>> Dear all,
>>
>> scoring the energy in an air-filled cavity in a waterphantom irradiated by a 1.25 MeV photon beam I habe encountered an interesting problem: Using the USRBIN-card one can score the energy either in the region (called "chamber") or use the R-Phi-Z geometry that exactly matches my region called "chamber". So since I am scoring the energy in the same region (in different ways concerning my USRBIN) I should get the same results. However the results are different: 4.64538e-10 GeV pm 0.0290214% for the region-scoring and 5.15530840E-10 GeV pm 3.25998449% for the R-Phi-Z-scoring.
>> Do you have an idea why this is so? Especially concerning the statistics that are quite different?
>> In the attachment you can find my input-file.
>>
>> Best regards,
>> Kilian
>> <Dosimetry_chamber.inp>
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Received on Wed Jul 20 2016 - 19:33:57 CEST