Share Email Print
cover

Proceedings Paper

The readout system and the trigger algorithm implementation for the UFFO Pathfinder
Author(s): G. W. Na; S. Ahmad; P. Barrillon; S. Brandt; C. Budtz-Jørgensen; A. J. Castro-Tirado; P. Chen; Y. J. Choi; P. Connell; S. Dagoret-Campagne; C. Eyles; B. Grossan; M.-H. A. Huang; S. Jeong; A. Jung; J. E. Kim; M. B. Kim; S.-W. Kim; Y. W. Kim; Aleksey S. Krasnov; J. Lee; H. Lim; E. V. Linder; T.-C. Liu; N. Lund; K. W. Min; J. W. Nam; I. H. Park; M. I. Panasyuk; J. Ripa; V. Reglero; J. M. Rodrigo; G. F. Smoot; J. E. Suh; S. Svertilov; N. Vedenkin; M.-Z. Wang; I. Yashin
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Since the launch of the SWIFT, Gamma-Ray Bursts (GRBs) science has been much progressed. Especially supporting many measurements of GRB events and sharing them with other telescopes by the Gamma-ray Coordinate Network (GCN) have resulted the richness of GRB events, however, only a few of GRB events have been measured within a minute after the gamma ray signal. This lack of sub-minute data limits the study for the characteristics of the UV-optical light curve of the short-hard type GRB and the fast-rising GRB. Therefore, we have developed the telescope named the Ultra-Fast Flash Observatory (UFFO) Pathfinder, to take the sub-minute data for the early photons from GRB. The UFFO Pathfinder has a coded-mask X-ray camera to search the GRB location by the UBAT trigger algorithm. To determine the direction of GRB as soon as possible it requires the fast processing. We have ultimately implemented all algorithms in field programmable gate arrays (FPGA) without microprocessor. Although FPGA, when compared with microprocessor, is generally estimated to support the fast processing rather than the complex processing, we have developed the implementation to overcome the disadvantage and to maximize the advantage. That is to measure the location as accurate as possible and to determine the location within the sub-second timescale. In the particular case for a accuracy of the X-ray trigger, it requires special information from the satellite based on the UFFO central control system. We present the implementation of the UBAT trigger algorithm as well as the readout system of the UFFO Pathfinder.

Paper Details

Date Published: 17 September 2012
PDF: 10 pages
Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84432T (17 September 2012); doi: 10.1117/12.926669
Show Author Affiliations
G. W. Na, Ewha Womans Univ. (Korea, Republic of)
S. Ahmad, Univ. of Paris-Sud 11 (France)
P. Barrillon, Univ. of Paris-Sud 11 (France)
S. Brandt, Technical Univ. of Denmark (Denmark)
C. Budtz-Jørgensen, Technical Univ. of Denmark (Denmark)
A. J. Castro-Tirado, Instituto de Astrofísica de Andalucía (Spain)
P. Chen, National Taiwan Univ. (Taiwan)
Y. J. Choi, KAIST (Korea, Republic of)
P. Connell, Univ. of Valencia (Spain)
S. Dagoret-Campagne, Univ. of Paris-Sud 11 (France)
C. Eyles, Univ. of Valencia (Spain)
B. Grossan, Univ. of California, Berkeley (United States)
M.-H. A. Huang, National United Univ. (Taiwan)
S. Jeong, Ewha Womans Univ. (Korea, Republic of)
A. Jung, Ewha Womans Univ. (Korea, Republic of)
J. E. Kim, Ewha Womans Univ. (Korea, Republic of)
M. B. Kim, Ewha Womans Univ. (Korea, Republic of)
S.-W. Kim, Yonsei Univ. (Korea, Republic of)
Y. W. Kim, Ewha Womans Univ. (Korea, Republic of)
Aleksey S. Krasnov, Moscow State University (Russian Federation)
J. Lee, Ewha Womans Univ. (Korea, Republic of)
H. Lim, Ewha Womans Univ. (Korea, Republic of)
E. V. Linder, Ewha Womans Univ. (Korea, Republic of)
Lawrence Berkeley National Lab. (United States)
T.-C. Liu, National Taiwan Univ. (Taiwan)
N. Lund, DTU Space (Denmark)
K. W. Min, KAIST (Korea, Republic of)
J. W. Nam, National Taiwan Univ. (Taiwan)
I. H. Park, Ewha Womans Univ. (Korea, Republic of)
M. I. Panasyuk, Lomonosov Moscow State Univ. (Russian Federation)
J. Ripa, Ewha Womans Univ. (Korea, Republic of)
V. Reglero, Univ. of Valencia (Spain)
J. M. Rodrigo, Univ. of Valencia (Spain)
G. F. Smoot, Ewha Womans Univ. (Korea, Republic of)
Univ. of California, Berkeley (United States)
J. E. Suh, Ewha Womans Univ. (Korea, Republic of)
S. Svertilov, Moscow State Univ. (Russian Federation)
N. Vedenkin, Moscow State Univ. (Russian Federation)
M.-Z. Wang, National Taiwan Univ. (Taiwan)
I. Yashin, Lomonosov Moscow State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 8443:
Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Stephen S. Murray; Jan-Willem A. den Herder, Editor(s)

© SPIE. Terms of Use
Back to Top