Dear Expert David Horvath, Thanks for the previous issue solution.
Regarding the normalization as you guided i have done with activity of Cs-137 from literature is 7.06E+03 .
The Scoring slide 06_Scoring_I_2024_CERN.pdf helped me a lot but stuck in how to calculate the detector efficiency from USRBIN Card.
For checking the energy deposition on detector i have changed the .bnn file to bnn.lis file but the file have large data that troubling me for analyzing. Kindly, let me tell how to find the energy deposition from the bnn.lis file to check the detector efficiency as well as graphs that given below.
With due respect, Let me guide regarding how to analyze the graphs to get the detector efficiency ??
DETECT Card has been also used for efficiency calculation in the simulation but i think the convenient easy one is USRBIN Card.
Dear Zeenat,
Thank you for your patience. Please find below some recommendations regarding your inquiry:
How to read USRBIN as ASCII: in a bnn.lis file, results are arranged in a specific format, as specified in the file header - e.g., Data follow in a matrix A(ix,iy,iz), format (1(5x,1p,10(1x,e11.4))). Please refer to the following resources for further details:
Dear Fluka Expert,
I hope you will be in good health. I am writing to seek your guidance on a few matters related to the USRBIN file and absolute detector efficiency calculation.
Firstly, I would like to express my gratitude for the material you previously provided. Despite my best efforts to comprehend the Fluka user manual regarding the USRBIN file, I am still struggling to fully understand it. I have reviewed the information multiple times but am having difficulty determining how to calculate detector efficiency using the USRBIN card. I have analyzed the bin.lis file using Python and obtained some data. However, I am uncertain whether my calculations are correct. Would you be willing to review my results and provide feedback?
Secondly, I would greatly appreciate if you could explain how to interpret the USRBIN flair graph to find detector efficiency or any other tips. As a beginner, I am finding it challenging to understand the data you previously provided. I apologize for any inconvenience and thank you in advance for your patience. Your expertise and guidance would be invaluable in helping me progress with my research.
As your kind instruction, I have controlled the “userbin meshes”.
Am i right for Absolute detector efficiency; The efficiency is calculated by taking the total integrated response from all bins and dividing it by number of (primeries * source activity)?? i.e (3200000/ 1000000*9.7E+03) = 0.003506185
1&2: If you wish to compute the detector efficiency, you cannot extract this information from the USRBIN card (since this card gives you an average over all primaries), but from the EVENTBIN or DETECT cards (which give you an event per event scoring).
4&5: The bins mentioned here are those from the e.g. DETECT card, not the bins of the geometric mesh of the USRBIN card.
