Experimental setup at cave c
This presentation is the property of its rightful owner.
Sponsored Links
1 / 12

Experimental Setup at Cave C PowerPoint PPT Presentation


  • 66 Views
  • Uploaded on
  • Presentation posted in: General

Experimental Setup at Cave C. new: proton tracking around the target with Si-strip detectors. new : proton tracking behind magnet with drift chambers. Exclusive measurement of all interesting reaction channels - knockout plus decay of residual system

Download Presentation

Experimental Setup at Cave C

An Image/Link below is provided (as is) to download presentation

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 - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Experimental setup at cave c

Experimental Setup at Cave C

new: proton tracking around the target with Si-strip detectors

new: proton tracking

behind magnet with drift chambers

Exclusive measurement of all interesting reaction channels

- knockout plus decay of residual system

- inelastic excitation plus neutron/proton decay (nuclear, electromagnetic)

- quasi-free scattering: (p,2p)

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Progress from rhib

Progress from RHIB

Thomas Aumann (GSI)

EURONS PCC meeting, Mainz 6th April 2006

  • High-resolution tracking diamond detectors (TUM)

    • good timing and position resolution, radiation hard

    • prototype tests performed

  • High-resolution tracking silicon detectors (GSI)

    • zero-degree detector for tracking of fragments and protons (in one detector) plus proton-recoil detector for quasi-free scattering experiments

    • prototype tests performed

  • Large-area detectors for heavy ions and light charged particles (Santiago de Compostela)

    • simulations performed, characteristic parameters defined

RHIB Tasks

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Progress from rhib1

Progress from RHIB

  • High-resolution velocity measurements (Santiago de Compostela)

    • first RPC prototypes available

    • beam time request for tests with high-energy HI submitted

  • Pilot experiments and simulations (Madrid, GSI, Chalmers, Aarhus, Daresbury)

    • quasi-free scattering (p,2p), p(pn) etc in inverse kinematics

    • simulations including reaction theory (Surrey)

    • first full-scale experiment for quasi-free scattering in preparation

  • High-transmission beam line (Giessen)

    • ion-optical calculations and optimization of FRS-CaveC(RHIB) beam lins

  • Low-mass tracking detectors (FZR) (prototype ready)

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Diamond detectors

Diamond detectors

Prototype detectors

Test with 1 GeV/u 27Al beam

- time resolution s~60 psec

(independent from signal amplitude)

- efficiency 98.5% (segmentation)

HADES start detector

1x1 cm2, 50mm substrate,

4x4 segmentation

low-noise 2 GHz preamps

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Diamond detectors1

Diamond detectors

Prototype detectors

Tests at the Munich Tandem with 117 MeV 16O beam (energy loss equ. 1 GeV/u Kr)

- Charge-collection spread 18%

(inhomogeneity of polychrytaline material)

- Charge-collection depth 15 mm

- Variation of thickness ±1 mm

1x1 cm2, 100mm substrate,

4x4 segmentation

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Diamond detectors2

Diamond detectors

Prototype detectors

Tests at the Munich Tandem with 117 MeV 16O beam (energy loss equ. 1 GeV/u Kr)

Radiation Hardness

max dose 101116O ions/mm2

→ tracking detectors for high-rate

invironment

(e.g., mid focus Super-FRS)

1x1 cm2, 100mm substrate,

4x4 segmentation

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Si strip detectors

Si-strip detectors

  • AMS type detectors

  • DSSDs, 300  m thick, 41 × 72 mm2

  • Strip pitch 100 m

  • Readout chips – VA64HDR9a (64 ch,

    very low power dissipation)

  • Energy resolution – 50 keV

  • Dynamic range – 100 keV - 14 MeV

  • 1024 readout channels/detector

  • Designed to work in vacuum (total

    power dissipation < 3 W/detector)

  • 9 detectors + FEE boards are available

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Si strip detectors1

Si-strip detectors

  • Beam test of 4 detectors -

    [email protected], November 2005

    fragments produced from 12C beam with E = 350 MeV/u

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Si strip detectors2

Si-strip detectors

Results

position measurement

dE resolution

Noise level

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Experimental setup at cave c1

Experimental Setup at Cave C

new: proton tracking around the target with Si-strip detectors

new: proton tracking

behind magnet with drift chambers

Exclusive measurement of all interesting reaction channels

- knockout plus decay of residual system

- inelastic excitation plus proton decay (nuclear, electromagnetic)

- quasi-free scattering: (p,2p)

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Quasi free scattering in inverse kinematics

Quasi-free scattering in inverse kinematics

  • kinematical complete measurement of

    (p,pn), (p,2p), (p,pd), (p,a), .... reactions

  • redundant experimental information:

    kinematical reconstruction from proton momenta

    plus gamma rays, recoil momentum, invariant mass

  • sensitivity not limited to surface

    → spectral functions

    → knockout from deeply bound states

    • cluster knockout reactions

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


Si strip detectors for qfs experiment

Si-strip detectors for QFS experiment

EURONS PCC-Meeting, Mainz (Germany), 6.-7. April 2006


  • Login