4
Conferences
false
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ICN-UNAM
1482bc95ee34f0461176da21871284c8
3
icrc2007@icrc2007.unam.mx
30th International Cosmic Ray Conference
The 30th International Cosmic Ray Conference will be held from July 3, 2007 to July 11, 2007 in Merida, Yucatan, Mexico.
True
Merida, Mexico
2007-07-03T08:00:00
2007-07-11T19:00:00
2005-09-26T05:04:53
2024-04-12T17:46:55
Mexico/General
Dr.
IGeof-UNAM
40af9343b8bb9d18708b4f0252d5f53c
112
false
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005 (1A)
1
Poster
16-point DCT as the spectral 1st level surface detector trigger in the Pierre Auger Observatory
Dr.
University of Lodz
465c7b598a41d8aaf8b9fc39fb5722c9
Dr.
University of Lodz
465c7b598a41d8aaf8b9fc39fb5722c9
Merida, Mexico
Regency (Hyatt)
2007-07-06T14:45:00
2007-07-06T14:45:00
Hadron induced, very inclined EAS, starting their development early
in the atmosphere produce narrow, relatively flat muonic fronts on
the Pierre Auger detection level. The signatures of FADC traces
(very short rise time with fast exponential attenuation) from water
Cherenkov tanks can be used for their detection. Currently used
triggers in the Pierre Auger surface detector (Threshold and Time
over Threshold triggers) have been selected to detect showers with
possibly wide range of distances from the core, angles and energies.
However they are not optimized for horizontal and very inclined
showers, interesting as potentially generated by neutrinos.
The paper describes the algorithm of 16-point discrete cosine transform
as the spectral 1st level trigger implemented into a progressive FPGA,
used in the 4th generation of the surface detector.
paper
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1
More information about the venue
http://www.icrc2007.unam.mx/
link
http://www.icrc2007.unam.mx/
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