Evaluation of low-count spectra without binning

0314001 - ÚJF 2009 RIV NL eng J - Journal Article
Ryšavý, Miloš - Kašpar, J.
Evaluation of low-count spectra without binning.
[Vyhodnocení s malými četnostmi bez použití vzorkování energií.]
Nuclear Instruments & Methods in Physics Research Section A. Roč. 594, č. 1 (2008), s. 97-101. ISSN 0168-9002. E-ISSN 1872-9576
R&D Projects: GA ČR GA202/06/0002; GA MŠMT LA318; GA MŠMT LC07050
Institutional research plan: CEZ:AV0Z10480505
Keywords : spectra evaluation * no binning
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 1.019, year: 2008

When evaluating spectra measured by single-channel method, the usual approach is to re-sort them into some suitable energy bins and then to add together the items falling into one bin. Then a theoretical spectrum shape is fitted into this data set thus determining the wanted physical parameters. Such an approach, however, unavoidably suffers from a systematical error which, moreover, may not be easily estimated. To do away with this error, we suggest a method which avoids the binning at all.

Pri vyhodnocovani spekter merenych jednokanalovou metodou se obvykle postupuje tak, ze se spektrum usporada do vhodnych energetickych bunek (binu) a sectou se vzdy pripady, padnouci do jednoho binu. Do techto dat se pak fituje teoreticke spektrum, cimz se urcuji pozadovane fyzikalni parametry. Tento pristup vsak trpi systematickou chybou, jejiz velikost navic neni lehke odhadnout. Abychom ji odstranili, navrhujeme metodu vyhodnoceni, ktera nepouziva toto "binovani" vubec.
Permanent Link: http://hdl.handle.net/11104/0164647