Difference between revisions of "All sky mc bllac"
(→All Sky MC simulation data for BL Lac analysis) |
(→All Sky MC simulation data for BL Lac analysis) |
||
| Line 5: | Line 5: | ||
Probably yes. It is because NSB level is 1.3-1.4 x dark NSB in BL Lac FoV due to the low galactic latitude (-10.44 degree) | Probably yes. It is because NSB level is 1.3-1.4 x dark NSB in BL Lac FoV due to the low galactic latitude (-10.44 degree) | ||
| + | |||
| + | [[File:bllac_nsb_level.png|1000px]] | ||
=== How much do we need to tune? === | === How much do we need to tune? === | ||
Revision as of 14:49, 23 May 2022
Contents
All Sky MC simulation data for BL Lac analysis
Do we need to apply NSB tuning?
Probably yes. It is because NSB level is 1.3-1.4 x dark NSB in BL Lac FoV due to the low galactic latitude (-10.44 degree)
How much do we need to tune?
(lst_v0.9.6) [seiya.nozaki@cp02 DL1]$ lstchain_tune_nsb --input-mc
/fefs/aswg/workspace/georgios.voutsinas/AllSky/TrainingDataset/GammaDiffuse/dec_4822/sim_telarray/node_corsika_theta_19.456_az_0.0_/output_v1.4/simtel_corsika_theta_19.456_az_0.0_run10.simtel.gz --input-data
/fefs/aswg/data/real/DL1/20210808/v0.9/tailcut84/dl1_LST-1.Run05555.0000.h5 --config lstchain_standard_config.json
Real data: median across camera of good pixels' pedestal std 2.101 p.e.
Number of pixels beyond 3 std dev of median: 31, (above 2.80 p.e.)
Good and not too bright pixels: 1818
{
"increase_nsb": true,
"extra_noise_in_dim_pixels": 0.977,
"extra_bias_in_dim_pixels": 0.388,
"transition_charge": 8,
"extra_noise_in_bright_pixels": 1.197
}
Which MC is proper for BL Lac analysis?
dec_3476 and dec_4822 is the closest nodes to the BL Lac path. Node of dec_3476 should cover the whole Zd range of BLLac data (13<Zd<51).
How much does NSB tuning affect the analysis?
You can see some differences below a few hundreds of GeV on intensity distribution. A ratio of surviving events after image cleaning is also different (~5% below 100 GeV).
