Some simple plots with veto What we can get from Cube data Recovering of Gamma ray and electron fluxes Solving system of linear equations Efficiences to detect gamma rays and electrons Energy dependence of efficiencies ID: 604288
Download Presentation The PPT/PDF document "Cube with veto appears in ADEI!" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Cube with veto appears in ADEI!
Some simple plots with veto!
What we can get from Cube data?
Recovering of Gamma ray and electron fluxes;
Solving system of linear equations;
Efficiences
to detect gamma rays and electrons;
Energy dependence of efficiencies;
Overal
count rates with and without veto!Slide2
Cube and Cube 3 cm detectorsSlide3
N7/N8 ~ 1.2; N7_v/N8_v ~ 1.1
N7/N7_v ~ 2.55; N8/N8_v ~ 2.47Slide4Slide5
Number of TGE particles detected by Cube
where p(20 cm/e) and p(20 cm/g) are the conditional
proba
-
bilities
to register electron or gamma ray by 20 cm scintillator. Accordingly
pv
(20 cm/e) and
pv(20 cm/g) are the conditional probabilities to register electron or gamma ray by Cube 20 cm scintillator with veto switched on.
Recovering of the energy spectra of electrons and gamma rays coming from the thunderclouds
Ashot Chilingarian,
Bagrat
Mailyan
⁎,
Levon
Vanyan
Atmospheric
Research 114–115 (2012) 1–16 Slide6
Solving system of linear equations
By calibration, confirmed with detector response simulations, we estimate these
condi
-
tional
probabilities as follows:
at 18:23, October 4, 2010 was N(20 cm) = 43,439 with veto and
Nv
(20 cm) = 44,956 without veto, the difference is N !
Nv = 1517. Solving the system of Eq. (1) with coefficients (2) we readily get: Ne=1560 and Ng=215,000. Thus, on October 4, most of TGE particles were gamma rays, the fraction of electrons was less than 1%. From additional 1560 particles detected by 20 cm thick Cube scintillators only 31 can be electrons, i.e. less than 2%. Slide7
Energy Spectra of gamma rays