FAIR (Facility for Antiproton and Ion Research) (Darmstadt, Germany)

FAIR (Facility for Antiproton and Ion Research) (Darmstadt, Germany)

low-energy cave0-200 MeV/u

fragmentation/fission

~1GeV/u

fragmentseparator

350m

ring branch

HISPEC/DESPEC

Zsolt Podolyák

PANDAR3B

EXL, ILIMA

HISPEC, DESPEC, LASPEC

Production yields and physics at FAIR:High primary beam intensity ~1012 ion/s for 238UHigh transmission (SuperFRS)

H. Geissel et al. NIM B 204 (2003) 71

FR S

S uper-FR S D egrader

D egrader 1

D egrader 2

Comparison of FRS and Super-FRS

-increase in transmission for fission products (a factor of 10)-cleaner beams due to the higher number of stages

CDR p.65. Some physics questions with radioactive beam

N=82

N=126

H. Grawe, K. Langanke, G. Martinez-Pinedo, to be published.

Larger differences(lack of experimental data)

isotopes of all elements; 0 MeV/u < E <200 MeV/u ions with short lifetimes (>100 ns) beam cocktail or mono isotopic beams isomeric beams

- gamma-ray spectroscopy + +- particle spectroscopy + +

- intermediate energy beams: 50-100 MeV/u- Coulomb barrier beams- decay spectroscopy

Features

HISPEC/DESPEC

Particle tracking (Z,pos.,E)

γ-ray det.

High-resolution In-flight SPECtroscopy (HISPEC)

Charged particle det., plunger

Identification (spectrometer, LYCCA)

Ge Cluster beam

Target chamber

CATE

Ge Miniball

Typically: 100MeV/u, ε=0.06, ∆E/E=0.02

ε=1.3% (1.3MeV)

E=100 MeV/u

ε=2.8% (Lorentz boost)dE/E<2%

HECTOR

RISING => HISPEC

AGATA 1π (demonstrator) at HISPEC

RISING AGATA 1π (demonstrator) (today) ~2011

Efficiency : 2.8% ~15% (10.5%) FWHM: 20 keV 7.6 keV

target-detector distance: 15 cm

Much increased sensitivity

Possibility of angular distribution and polarisation measurements,Coincidence measurements, g-factors (transient field method)Determination of source position (?) (target vs. degrader)

E/A=100 MeV

Several UK groups involved

Requirements for the beam tracking for AGATA

uncertainty (sigma) beta=5% beta=20% beta=50%position (cm) 1.5 0.5 0.3direction (degrees) 2 0.6 0.3velocity module (%) 2.4 0.7 0.3

E. Farnea, F.Recchia, LNL-INFN Ann.Rep. 2003 and private communication.

Identification of reaction products

CATE => LYCCA dE-E dE-E +TOF

Ti nuclei

different masses separated upto A=100

M.Taylor et al.

55Ni(9Be,xn,4p)

LLund-und-YYork-ork-CCologne ologne CACAlorimeter (LYCCA)lorimeter (LYCCA)

Diamond ? • Start TOF n DSSD’s

Light particleenergy detection

Diamond ?• Stop TOF

x DSSD’sparticle energyloss (ΔE)

x CsI detectorsparticle energy(E) detection

DSSD’s: 6cm x 6cm, 32 x 32 strips, 500μm total lab angle (2m separation) ± 2.6°

Two modulesi) LCP detection ii) Fragment identification

CsI’s: 2cm x 2cm, 3 x 3 x 3 array 3cm thick, stops 100 MeV protons

Possibly 13 telescopes for final design

• Fragment identification from ΔE, E, tracking and TOF

beam from Super FRS

(magnetic separator)

First LYCCA Tests in 2007

Rising Array 15 CLUSTERs (7 Ge crystals each)

March 2006

RISING => DESPEC

NEUTRON DETECTOR

DSSD IMPLANTATIONDETECTOR

GE γ-ARRAY

RADIOACTIVEBEAM

DEcay SPECtroscopy (DESPEC)

24 c

m

8 cm

8 x 8 cm128 x 128 strips1 mm (Micron in progress)3 dssd

E

Veto

AIDA: Advanced Implantation Detector ArrayCoordinator: T. Davinson

ww

w.p

h.ed

.ac.

uk/~

td/A

IDA

Implantation energy measurementDecay energy measurement (several layers)Low threshold: ~40 keV (conversion electron!)Fast recovery (~µs); ASIC

Edinburgh, STFC, Liverpool

Extended configuration(Super-FRS monochromatic)

Compact configuration (Super-FRS achromatic)

Planar Ge Array for DESPEC

24 stacks of 3 DSS-Planar detectors:

Detectors

24

Planar crystals per detector unit

3

Strips per element 8 + 8

Electronics channels 1152

Effective number of voxels

13824UK: Brighton, Edinburgh, Liverpool, Manchester, Paisley, STFC, Surrey, York

Setup A / Target

Super-FRS LEB

Setup B(spectrometer mode)

monoenergeticdegrader

Setup C / stopping cell

MF9

Available overall space

MF9 6000 mm

Setup A 8000 mm

Setup B 5500 mm

Degrader 2000 mm

Setup C 7000 mm

HISPEC

DESPEC

LYCCA

Reactions with Relativistic Radioactive Beams (R3B)

EXotic nuclei studied in Light-ion induced reactions at the NESR storage ring (EXL)

RISING => HISPEC/DESPECContinuous improvement AIDA in ~2010 LYCCA-0 in ~2010 AGATA demonstrator in ~2011? Physics <=> Theory

NUSTAR-UK HISPEC, DESPEC, R3B/EXL, ILIMA, LASPEC Statement of Interest in preparation

Summary