From: Mr. Bhushankumar Jagnnath Patil. (bjp@physics.unipune.ernet.in)
Date: Fri Jan 11 2008 - 12:17:52 CET
Respected sir
Thank you for your kind help. The information is very useful for me.
I want to ask one more question that which option of flair i will
use to calculate the y axis result in (cm-2 per incident particle)
unit. Just i want to remove the per GeV and per Sr terms or how i
will do it manually.
waiting for your reply
Thanking you in advance.
> Dear Bhushan,
>
> From the manual:
> "Note: The results of a USRBDX boundary crossing estimator are
> always given as DOUBLE DIFFERENTIAL distributions of
> fluence (or current) in energy and solid angle, in units
> of cm-2 GeV-1 sr-1 per incident primary, EVEN WHEN ONLY
> 1 INTERVAL (BIN) HAS BEEN REQUESTED, which is often
> the case for angular distributions."
> The output of the USRBDX card is fluence. Now if you do what you are
> asking "multiply by the difference of the Ist and IInd column" what you
> will get is a histogram of weighted counts for every energy bin.
> For flair please look in the last fluka courses the flair-2.pdf file.
> You have several options depending on what you will like to plot, both
> on the X-axis and the Y-axis.
> Variables: "Low" xl = Ist column, "High" xh = IInd column, Y = IIIrd
> column
>
> X-axis
> 1. GeoMean: sqrt(xl*xh) <Xgeo>
> The geometrical mean of the two values. Useful if you want to plot
> point in the geometrical center of each bin. To be used only if you make
> a logX plot. Be careful this is only for plotting it doesn't care what
> you have scored in fluka linear or log in energy.
> 2. Mean (xl+xh)/2 <X>
> Normal mean. To be used for linear plots
> 3. Low (xl)
> Low value of the bin. To be used when plotting like a histogram the
> data, together with the "steps" style
> 4. High (xh)
> High value of the bin. Same as 3 but for "histeps"
>
> Y-axis
> There you have several choices on the way you want to represent your data
> i) Y
> The value of the IIIrd column as given by fluka
> ii) Y x <X>
> The value multiplied by the mean of the first two columns. To plot in
> isolethargic way with linear x-axis
> iii) Y x <Xgeo>
> Multiplied by the geometric mean. Isolethargic way with log x-axis
> iv) Y x Xl
> ...
> v) Y x Xh
> ...
> vi) Y x DX
> Number of "counts" per bin.
>
> Examples:
> * To plot normal fluence like a histogram (log or linear) you have to
> choose
> X: Low [xl]
> Y: Y
> With: steps
>
> * To plot normal fluence with error bars (linear)
> X: Mean (xl+xh)/2
> Y: Y
> With: errorbars
>
> * To plot normal fluence with error bars (log)
> X: GeoMean sqrt(xl*xh)
> Y: Y
> With: errorbars
>
> * To plot isolethargic fluence as histogram (log)
> X: Low [xl]
> Y: X*<Ygeo>
> With: steps
>
> ...
>
>
> Regards
> Vasilis
>
>
> B H U S H A N wrote:
>> Dear fluka users and experts,
>>
>> USRBDX 101.0 7.0 -31.0 20.0 3.0
>> 10.5768PhFluenUD
>> USRBDX 0.006 0.00 100.0 &
>>
>> This is my usrbdx card for the detection of photon fluence. I want to
>> calculate fluence of photon passing through the region 20 to 3. how can
>> i
>> get it?
>> I was doing fluence calulation by this way
>>
>> IIIrd column in *_tab.lis (i.e photon/cm^2/GeV/primary particle)
>> multiply this by the differece of Ist and IInd column of the same row.
>> Is this right? if not please reply me the correct way. does the
>> same way is useful for neutron fluence calculation?
>>
>> Also I have installed flair, in flair for plotting USR-1D and in
>> detector information of this there are 6 different option for Y axix
>> selection. like
>> i) Y
>> ii) Y x <X>
>> iii) Y x <Xgeo>
>> iv) Y x Xl
>> v) Y x Xh
>> vi) Y x DX
>>
>> I want to know that which one is correct for fluence calculation(i was
>> using last one) and where other option will be useful. what are its
>> meaning.
>>
>> THank you very much.
>>
>> Bhushan
>>
>>
>> *!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!
>> !* Mr. PATIL BHUSHANKUMAR JAGNNATH. !*
>> *! Junior Reasearch Fellow *!
>> !* DEPARTMENT OF PHYSICS, !*
>> !* UNIVERSITY OF PUNE, !*
>> *! GANESHKHIND, PUNE *!
>> !* MAHARASHTRA !*
>> *! INDIA. *!
>> !* 411007 !*
>> *!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!*!
>> Alternate mail-id amolbhushan2003@yahoo.com
>> Web-page http://physics.unipune.ernet.in/~bjp/
>>
>>
>>
>
>
> --
> This message has been scanned for viruses and
> dangerous content by MailScanner, and is
> believed to be clean.
>
>
Mr. Bhushankumar Jagnnath Patil.
Microtron Accelerator Lab.
Department of Physics,
University of Pune,
Ganeshkhind, Pune 411007
Ph. No. Off. 020-25692678 Ext. 421
Mob. 9823968377
Webpage http://physics.unipune.ernet.in/~bjp
Alternate e-mail amolbhushan@gmail.com
-- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
This archive was generated by hypermail 2.1.6 : Fri Jan 11 2008 - 14:36:47 CET