2005
DOI: 10.1016/j.nima.2005.05.029
|View full text |Cite
|
Sign up to set email alerts
|

Tests of a prototype multiplexed fiber-optic ultra-fast FADC data acquisition system for the MAGIC telescope

Abstract: Ground-based Atmospheric Air Cherenkov Telescopes (ACTs) are successfully used to observe very high energy (VHE) gamma rays from celestial objects. The light of the night sky (LONS) is a strong background for these telescopes. The gamma ray pulses being very short, an ultra-fast read-out of an ACT can minimize the influence of the LONS. This allows one to lower the so-called tail cuts of the shower image and the analysis energy threshold. It could also help to suppress other unwanted backgrounds.Fast 'flash' a… Show more

Help me understand this report
View preprint versions

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
24
0

Year Published

2006
2006
2016
2016

Publication Types

Select...
6
1
1

Relationship

2
6

Authors

Journals

citations
Cited by 27 publications
(24 citation statements)
references
References 12 publications
0
24
0
Order By: Relevance
“…• The MAGIC-I readout was based on an optical multiplexer and off-the-shelf Flash Analog to Digital Converters (FADCs) (MUX-FADC, Bartko et al 2005), which was robust and had an excellent performance but was expensive and bulky. The readout of MAGIC-II was based on the DRS2 chip 1 (compact and inexpensive but performing quite worse in terms of intrinsic noise, dead time and linearity compared to the MUX-FADC system).…”
Section: Introductionmentioning
confidence: 99%
“…• The MAGIC-I readout was based on an optical multiplexer and off-the-shelf Flash Analog to Digital Converters (FADCs) (MUX-FADC, Bartko et al 2005), which was robust and had an excellent performance but was expensive and bulky. The readout of MAGIC-II was based on the DRS2 chip 1 (compact and inexpensive but performing quite worse in terms of intrinsic noise, dead time and linearity compared to the MUX-FADC system).…”
Section: Introductionmentioning
confidence: 99%
“…The cost of the data acquisition electronics for the A-T design is equal to or less than for the D-C design. Both designs will benefit from the successful application of fast multiplexing, either at the telescope trigger level, which enables only the fraction of the full camera which contains the air-shower image to be digitized and stored, or at the digitization level where optical fiber delay lines are utilized to multiplex signals from several pixels into single FADC channel [ 36]. These technologies potentially have the promise to reduce $ daq by a factor of ten or larger.…”
Section: Discussionmentioning
confidence: 99%
“…A more speculative solution could be to use the local trigger to activate a fast "electronic switch" which may forward only signals in the RoI to 500 digitizers (see [19] for a similar solution using an optical switch). This would represent a significant cost reduction for readout and data storage, but may be technically challenging, for instance due to an increase of deadtime.…”
Section: Focal Plane Instrumentation and Readoutmentioning
confidence: 99%