Re: [Brahms-dev-l] MRS acceptance maps

Hi,
it would be nice if there was a unique answer, but it really depends on a) the run preiod, b) how you do efficiencies,
and what fiducial detector you use i.e. tofw, tfw2 and what slat range. At some level as long you make the identical 
cuts in the analysis there should not be a problem.

i) TPM1: As I said in my analysi note front cuts of -18.72<xFront<18.72 is ok. The y does not matter (as long it is big    enough)
ii) TPM2 ; I use defaults but I think Catalin and Truls has restricted range.
iii) TOFW; kris likes 40<=slat<=100+; but does depend on active slats
iv)  TFW2: for 90 deg you must use 3<=slat<=37 otherwise the trigger does not match, but if there are many dead slats
      between say 3 and 8 which I know of (I think 8 is always dead) you should use a smaller range.
      Again I tried to lay this out in the note.

hopefull Truls+Catalin witll tune in on this.

Flemming




--------------------------------------------
Flemming Videbaek
Physics Department 
Bldg 510-D
Brookhaven National Laboratory
Upton, NY11973

phone: 631-344-4106
cell:       631-681-1596
fax:        631-344-1334
e-mail: videbaek @ bnl gov
----- Original Message ----- 
From: "Bekele, Selemon" <bekeleku_at_ku.edu>
To: <brahms-dev-l_at_lists.bnl.gov>
Sent: Tuesday, May 01, 2007 2:59 PM
Subject: [Brahms-dev-l] MRS acceptance maps


> 
> Hi,
> 
>   I am trying to make acceptance maps for the MRS.
> I see the following default values for the fiducial cuts.
> if I run with the defaults
> ==================
>  TPM1 fiducial cuts, 
> 
> Front X:[-19.2, 19.2] Y:[-10, 10]
> Back  X:[-19.2, 19.2] Y:[-10, 10]
> 
>  TPM2 fiducial cuts, 
> 
> Front X:[-33.84, 33.84] Y:[-9.9, 9.9] 
> Back  X:[-33.84, 33.84] Y:[-9.9, 9.9]
> 
>  D5 fiducial cuts: X=1 Y=0
> ===================
> On the other hand, I see the following commented values in "generateMAps.cxx". 
> Are they suggested values for what fiducial cuts should be? It takes a long time
> to get the maps with a 2% error and I really do not have the time to experiment
> with this values. It would be of great help and save me time if people who have 
> generated MRS maps comment on it.
> 
> ===================
>  new BrAppFloatOption('\0', "TPM1-fidflowX", "Lowest acceptable X on front of TPM1", -1111); // -18.2);
>  new BrAppFloatOption('\0', "TPM1-fidfhiX", "Highest acceptable X on front of TPM1",  -1111); //  18.2);
>  new BrAppFloatOption('\0', "TPM1-fidflowY", "Lowest acceptable Y on front of TPM1", -1111);
>  new BrAppFloatOption('\0', "TPM1-fidfhiY", "Highest acceptable Y on front of TPM1",  -1111);
>  new BrAppFloatOption('\0', "TPM1-fidblowX", "Lowest acceptable X on back of TPM1",  -1111); // -18.2);
>  new BrAppFloatOption('\0', "TPM1-fidbhiX", "Highest acceptable X on back of TPM1",   -1111); //  18.2);
>  new BrAppFloatOption('\0', "TPM1-fidblowY", "Lowest acceptable Y on back of TPM1",  -1111);
>  new BrAppFloatOption('\0', "TPM1-fidbhiY", "Highest acceptable Y on back of TPM1",   -1111);
> 
>  new BrAppFloatOption('\0', "D5-fidX", "Closest acceptable distance to D5 magnet walls in X", 1); // 1);
>  new BrAppFloatOption('\0', "D5-fidY", "Closest acceptable distance to D5 magnet walls in Y", 0); // 1);
>  
>  new BrAppFloatOption('\0', "TPM2-fidflowX", "Lowest acceptable X on front of TPM2", -1111); // -17.8);
>  new BrAppFloatOption('\0', "TPM2-fidfhiX", "Highest acceptable X on front of TPM2",  -1111); //  18.8);
>  new BrAppFloatOption('\0', "TPM2-fidflowY", "Lowest acceptable Y on front of TPM2", -1111);
>  new BrAppFloatOption('\0', "TPM2-fidfhiY", "Highest acceptable Y on front of TPM2",  -1111);
>  new BrAppFloatOption('\0', "TPM2-fidblowX", "Lowest acceptable X on back of TPM2",  -1111); // -26.0);
>  new BrAppFloatOption('\0', "TPM2-fidbhiX", "Highest acceptable X on back of TPM2",   -1111); //  28.0);
>  new BrAppFloatOption('\0', "TPM2-fidblowY", "Lowest acceptable Y on back of TPM2",  -1111);
>  new BrAppFloatOption('\0', "TPM2-fidbhiY", "Highest acceptable Y on back of TPM2",   -1111);
> =========================
> 
> Thanks in advance,
> 
> Selemon
> 
> 
> _______________________________________________
> Brahms-dev-l mailing list
> Brahms-dev-l_at_lists.bnl.gov
> https://lists.bnl.gov/mailman/listinfo/brahms-dev-l
>
_______________________________________________
Brahms-dev-l mailing list
Brahms-dev-l_at_lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/brahms-dev-l