Loading in 5 sec....

Study of nuclear equations of state: the ASY-EOS experiment at GSIPowerPoint Presentation

Study of nuclear equations of state: the ASY-EOS experiment at GSI

Download Presentation

Study of nuclear equations of state: the ASY-EOS experiment at GSI

Loading in 2 Seconds...

- 68 Views
- Uploaded on
- Presentation posted in: General

Study of nuclear equations of state: the ASY-EOS experiment at GSI

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Study of nuclear equations of state: the ASY-EOS experiment at GSI

Simone Santoro1,2

for ASY-EOS Collaboration

1University of Messina

2 INFN - Catania

Introduction

Experimental Set-up: CHIMERA

Special Configurationat GSI

Identificationmethods

On-line results

Digitalization

ReactionPlanereconstruction

Conclusions

Experimental Set-up

Measured systems

on May 2011 at GSI

96Ru+96Ru@ 400 AMeV197Au+197Au @ 400 AMeV

96Zr+96Zr @ 400 AMeV

CHIMERA Special Configurationat GSI

8 forward Rings

N° 352 CsI Detectors

N° 32 Si Detectors

7° < ϑ < 20°

The frame wasvery light

LowNitrogen flow inside Chimera chamber

Carbon Fiber Pipe

hasbeenfilled with circulatingHelium

96Zr+96Zr @ 400 AMeV96Ru+96Ru@ 400 AMeV

CsI

(Tl)

Si

IdentificationMethods

PSD in CsI(Tl)

Z and A for light chargedparticles

ΔE(Si)-E(CsI)

Charge Z for particles punching through the Si detector

Be

Li

HI

a

3He

t

d

p

ΔE(Si)-ToF

Mass for particlesstopping in the Si detector

3-12 cm

~300 μm

ΔE(Si)-E(CsI)

Charge Z and A for light ions (Z<9) punching throughthe Si detector

E(Si)-Rise time

Charge Z for particlestopping in Si detectors

IdentificationMethods

Standard analogical acquisition

Fast (ch)

Slow (ch)

E Sil (ch)

Fast (ch)

197Au105pps400 A.MeV + 197Au

CHIMERA

Fast (ch)

Fast (ch)

Slow (ch)

Fast (ch)

Slow (ch)

197Au105pps400 A.MeV + 197Au

IdentificationMethods

Fast (ch)

Slow (ch)

E Sil (ch)

Fast (ch)

Identification via KaliVedaGrid Library

Digital Pulse Shape acquisition DSPA

100 MHz of sampling

14 bit of resolution

197Au105pps400 A.MeV + 197Au

From P.Guazzoniet al., Chimera Milano group

Digital PulseShapeacquisition DSPA

197Au105pps400 A.MeV + 197Au

From P.Guazzoniet al., Chimera Milano group

ReactionPlanereconstruction

Yield

0

50

-150

-100

-50

100

150

Phi (deg)

For monitoring on-line

Conclusions

- CHIMERA worked well at GSI
- We got isotopic identification in CsI for Z≤2
- The analysis is in progress…
- and…..
- To realize the ASY-EOS experiment, a big international collaboration was needed:
- In this sense the experiment was surely successful!!!!!

Thanks for the attention

Acknowledgments

PaOloRuSSotto, Tino Minniti

Antonio Trifirò

Enrico De Filippo

Giuseppe Cardella

Giuseppe Verde

Angelo Pagano

and all CHIMERA group

Digital PulseShapeacquisition DSPA

From P.Guazzoniet al., Chimera Milano group

Electronic chain for CsI

blackall charged particles

blue-redused in reaction plane reconstrution (Q vector)

ycm>0.1

Using only , , Z information

CHIMERA

t (Csi) =10 ns

E/E (CsI) =10 %

pro-ycm-0.1+-0r4-7-dw5-10ns-10de-au-20run-covered.jpeg

NOPB New Conditions 08/10/09