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Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
2nd. Workshopon
Proyecto
Project
Still walking...
1
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A TRASGO
What is it?
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Following a Spanish Dictionary:
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
What we pretend to be:
An affordable and high performance High Energycharged particles Timing and Tracking detector to be used everywhere an affordable and high performancehigh energy charged particles timing and trackingdetector is needed
DAQ and
Power Supplies
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A trasgo pretends to offer:
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A trasgo pretends to offer:
AffordabilityBasic elements common tothe different configurations
Detectors
Chamber
Plane
Strip or Cell
DAQ Boards Other elementsFEE Electronics
HV power supplyLV power supplyTemperature, pressure sensorsAcquisition, reconstructionand analisys software…
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A trasgo pretends to offer:
Modularity
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A trasgo pretends to offer:
Versatility
AbsorbersDifferent number of detectors
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A trasgo pretends to offer:
Capability of workingSand-alone
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A TRASGO
Why is it special?
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. Santiago de Compostela Feb. 5th-6th. 2010
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Three basic ingredients:
-High time resolution detectorsTiming Resistive Plate Chambers
-Data acquisition board including thereconstrucion and analysis software
TTB: Timing and Tracking Board-A powerful and fast track reconstructionAlgorithm
TimTrack
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. Santiago de Compostela Feb. 5th-6th. 2010
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
- High time resolution detectorsTiming Resistive Plate Chambers
-Timing Resitive Plate Chambers (tRPCs) offer the bestperformances at the best price to cover big surfaces- Are easy to manufacture in mass production- Robust and relatively easy to handle- Difficult to build offering the best performance
Tentative minimum requirements:. Eficiency > 90% Time resolution < 200psRate capability > 100Hz/cm2Dead time of a single channel < 100ns
Chamber side view
Gas flow
HV
IsolatingCover
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. Santiago de Compostela Feb. 5th-6th. 2010
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
- Data acquisition board including thereconstrucion and analysis software
TTB: Timing and Tracking Board
Inspired by the TRB (Trigger Readout Board) of HADES-GSI
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. Santiago de Compostela Feb. 5th-6th. 2010
TRB
+- Tracking implemented in FPGA’s
- Analisis implemented in board processor (ETRAX)
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
-A powerful and fast track reconstructionAlgorithm:
TimTrack
Saeta: s = (X0,X’,Y0,Y’,T0,1/Vz)
T0
Vz
y
x L
z=0Y0
X0
X’
Y’
z
V This equation provides the saetadirectly from the data
Vector s depends on the dataMatrix K depents on the layout
Covariance matrix, V:V = K-1
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A TRASGO
Minimum requirements
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Box4 RPC planes
80 cm
80 cm
80 cmFEE
32channels/plane
TRB/TTB128 channels
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Trasgo’s resolutions (β=1. Units: ps, cms and radians)
1 TRB : 128 channels 2 TRBs :256 channels
δtRPC Planes/Trasgo δT0 δv/v(%) δx δx’ δT0 δv/v(%) δx δx’
4 70 7 9.4 0.03 70 7 5.4 0.02
6 58 5 9.9 0.04 58 5 6.0 0.02200ps
8 50 6 10 0.04 50 6 6.5 0.02
4 35 3.6 7.1 0.024 35 3.6 4.7 0.02
6 30 3.1 6.9 0.025 30 3.1 5.0 0.02100ps
8 25 3 6.4 0.024 25 3 5.1 0.02
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A TRASGO
What is it for?
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Cosmic ray detection is useful not only for research in cosmic rays!
- Dosimetry in airplanes, computing and telecomunication equipments,high energy particle physics accelerators environments…
- Interplanetary magnetic field measurements- Solar activity- Correlation studies between cosmic rays and climate changes- Ultra High energy nuclear physics models- Ultra High energy physics radiation with mater interaction- and other secondary uses:
- Calibration of detectors- Search of hidden chambers in pyramids- Earth subsoil “radiography”- …
A detector with outstanding performances like the Trasgo may be veryuseful for some of these and other tasks, either working alone, in puretrasgos arrays or in hybrid arrays
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Let’s see some examples
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Cosmic Rays Astroparticle Physics
High energy cosmic rays interact in the highest layers of the atmosphereproducing showers of billions of secondary cosmic rays that are detectedat the earth surface
Primary cosmic ray properties (direction, mass, energy) are estimatedfrom the information measured at the Earth surface
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
But…showers lose many information about their birth and to estimate the propertiesof the primary cosmic ray has many unaccuracies:
The scatter of points on a plot of the average logarithm of the nuclear mass number of the primary cosmic rays versus energy clearly shows the need for more input from accelerators.
CCOU02
… and some estimations have to be done with the help of MonteCarlos
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Just a few tracking detectors with enough accuracy and size may providevery significative information about the shower properties:
- Density of particles- Width of the shower front- Curvature- Mean values, dispersion, asymmetries of the arrival angles- Some electrons/muons separation
Hypothesis:The increasing of measured information, its redundancy and its accuracy
(with Trasgos) may allow to improve the estimation of the primary cosmic ray.
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A very nice exercise:
It could be very interesting to repeat the pioneering experiment done by Bassi, Clark and Rossi in the fifties to determine the properties of the atmospheric showerswith the time, position and angular resolution provided by the Trasgos.
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
[Bassi, Clarck and Rossi: 1953]
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Other uses:
As complementary detectors for underground cosmic ray experiments
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Other uses:
For improving muon resolution in big spectrometers
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Other uses:
Calibration of hugh observatories
For example: Antares/Km3
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Other uses:
Cosmic rays and Climate
Helada en Londres en 1684
Correlations between climate and solar activity
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010Juan A. Garzón: 2nd. Workshop on the Trasgo Project. Santiago de Compostela Feb. 5th-6th. 2010[http://en.wikipedia.org/wiki/Image:Structure_of_the_magnetosphere_mod.svg]
GCR: Galactic Cosmic Rays
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Other uses:
Analysis of the correlation between high energy cosmic rays and the climate changes
Correlations have been observed between the themperature of the stratosphereand the flux of muons at ½ mile underground (high energy muons):High energy(narrow) showers could be measured with the help of Trasgos
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A TRASGO
Where we are?
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
2009 was a very hard yea for the Trasgo project:- Any support from the Spanish funding Agency- Any support from the Galician funding Agency- A lot of work with the commissioning of the HADES tRPC wall
But, however, we had a few significatives advances:
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Trasgo project
- Cells developmentThe groups of LIP-Coimbra and LabCAF-USC have started theR&D of sealed timing RPCs (Talks of P. Fonte & M. F.Morales)
- A poster has been accepted in the RPC2010 conference
- 12 cells from Hades available to built the 1st. prototype
- First steps done in order to open a collaboration with Dept. ofElectronics (Prof. J. Bruguera) and the GSI (Dr. M. Traxler) toimplement the tracking and the reconstruction software in a TRB
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A first Geant for Trasgos is ready… and well documented at the Hades Wiki page (thanks Diego!)
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
TimTrack:- 1st. article accepted in Nucl. Instr. & Meth. A- An oral presentation accepted in RPC2010 Conference- Version of TimTrack for Drift Chambers ready and being tested with
HADES MDC simulated data (preliminary results encouraging)- First test done with real data:
Cosmic data from the commissioning of the HADES tRPC wall(Talk of P.Cabanelas)
- A couple of collaborations are being opened with:Leo Alonso (Dept. of Algebra /USC)Wenceslao G. Manteiga & Cesar Sanchez (Dept. of Statistics)to explore the mathematical aspects of the method
-A collaboration opened with the CESGA (C. de Supercomputaciónde Galicia) to write the code in C language and adapted to be usedwith parallel computers or multicore processors
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Accepted in NIM A
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
1st. formalism approach
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
A TRASGO
Next steps
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Next steps
- Advance in the development of sealed RPCs
- Analyze the cosmic data taken with the HADES tRPC wall at GSI
- Advance in the mathematical aspects of the TimTrack (?)
- Advance in the development of a new version of TRB: TTB (?)
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
- Build a first prototype, using:12 HADES tof tRPC cellsHADES FEE boards1 TRB V2.
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Next steps
- To extend or redefine the Meiga project(This afternoon at 19h30)
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Proyecto
(Mini Ensemble for Identifying GAlactic radiation )
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Expected fluxes of Cosmic Rays at the sea levelDensity/m2 Energy(eV) Frec/m2.day Radius(m) Area (m2) NClusters/day/m2
1015 0.03 30 3 103 100
1016 3 10-4 150 7 104 20
1017 3 10-6 330 3.5 105 1>51018 3 10-8 650 1.3 106 0.04
~120
1015 3 10-2 20 103 30
1016 3 10-4 100 3 104 9
1017 3 10-6 280 2.5 105 0.75> 101018 3 10-8 550 106 0.024
~40
1015 3 10-2 10 3 102 10
1016 3 10-4 80 2 104 6
1017 3 10-6 250 2 105 0.6> 171018 3 10-8 480 7 105 0.021
~16
1016 3 10-4 60 104 3
1017 3 10-6 200 105 0.3
> 30 ~31018 3 10-8 400 5 105 0.015
1016 3 10-4 50 8 103 2.4
1017 3 10-6 160 8 104 0.24
> 40 ~2.51018 3 10-8 350 4 105 0.012
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Overview of the Workshop
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
IN MEMORIAM
Juan Antonio Rubio(1944 - 2010 )
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Juan Antonio, ¡ va por ti!
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010
Somewhere over the rainbow, skies are blue
And the dreams that you dare to dream , really do come true
(The Wizard of Oz)
Juan A. Garzón: 2nd. Workshop on the Trasgo Project. S. Compostela Feb. 5th-6th. 2010Juan A. Garzón: 2nd. Workshop on the Trasgo Project. Santiago de Compostela Feb. 5th-6th. 2010