The DESIR physics workshop(Leuven 26th – 28th May)

Paul Campbell

Present status…Community interests…

The future experiments…

The DESIR physics workshop

73 delegates 23 institutions 12 countries

½ + 1 + ½ days, 4 sessions

– the facilities, BESTIOL, LUMIERE, traps

OUTCOMES: reported today and,

http://www.cenbg.in2p3.fr/desir/spip.php?rubrique82

APPENDIX III:

DESIR collaboration agreement

After the construction of the DESIR infrastructure (RFQ cooler SHIRaC, high-resolution separator

HRS, beams lines from S1, S2, and S3 to DESIR), the DESIR collaboration proposes the

installation of a certain number of general equipment (stable ion sources, identification station,

general-purpose ion buncher GPIB) which will be available to all experiments. This equipment will

be provided by the collaboration as a whole or by different groups and financed by different means

(ANR, regional grants etc.).

Part of the equipment necessary to perform experiments in DESIR exists already or is presently

built and commissioned. Other parts will be constructed in the next few years. This equipment is

financed by different parts of the DESIR collaboration and will be installed permanently or for

longer periods in the DESIR hall. Details of this process will be fixed in a Memorandum of

Understanding which is presently being elaborated.

The DESIR physics workshop

Introduction...

Present experiments and equipment...

The future experiments and interest...

A/q=6 Injector option

A/q=6 Injector option

DESIR Facility low energy RIBDESIR Facility low energy RIB

HRS+RFQ CoolerHRS+RFQ Cooler

RIB Production CaveUp to 1014 fiss./sec.

RIB Production CaveUp to 1014 fiss./sec.

A/q=3 HI sourceUp to 1mA

A/q=3 HI sourceUp to 1mA

A/q=2 sourcep, d, 3,4He 5mAA/q=2 source

p, d, 3,4He 5mA

LINAC: 33MeV p 40 MeV d 14.5 AMeV HI

LINAC: 33MeV p 40 MeV d 14.5 AMeV HI

SP2 Beam time: 44 weeks/yGANIL Beam time: 35 weeks/yISOL RIB Beams: 28-33 weeks/yGANIL+SP 2 Users: 700-800/y

SP2 Beam time: 44 weeks/yGANIL Beam time: 35 weeks/yISOL RIB Beams: 28-33 weeks/yGANIL+SP 2 Users: 700-800/y

GANIL/SPIRAL1/SPIRAL2 facilityGANIL/SPIRAL1/SPIRAL2 facility

GANIL/SPIRAL 1 today

CIME cyclotron RIB at 1-20 AMeV (up to 9 AMeV for fiss. fragments)CIME cyclotron RIB at 1-20 AMeV (up to 9 AMeV for fiss. fragments)

S3 separator-spectrometerS3 separator-spectrometer

Neutrons For Science

Neutrons For Science

SPIRAL2 is one of the ESFRI list projects (40 most important EU research infrastructure projects)

Cost: 200M€Funded

Cost: 200M€Funded

DESIR (typical example) 29 weeks of RIB/year: 10 weeks of ISOL RIB from SPIRAL2, 4 weeks from S3, 15 weeks from SPIRAL1 DESIR (typical example) 29 weeks of RIB/year: 10 weeks of ISOL RIB from SPIRAL2, 4 weeks from S3, 15 weeks from SPIRAL1

Beamtime…

The DESIR physics workshop

Introduction...

Present experiments and equipment...

The future experiments and interest...

New experimental setup for 2p emission : The Silicon Cube

I. Matea et al, Nucl. Instr. and Meth. A 607 (2009) 576

High granularity with 1536 pixels

Angular coverage

54% for one proton detection

29% for two-proton detection

6 DSSSD with 16x16 strips

6 silicon detector behind

192 electronics channels

3 EXOGAM clovers

P. Ascher

M. B. Gómez et al. UPC, Barcelona

SIMULATION VALIDATION WITH 252Cf SOURCE IN UPC LAB

Wall effect190 keV

Noise

Wall effect575 keV

Full energy 765 keVExp % MCNPX % GEANT4 %

Inner crown 21.3 ± 3.2 21.3 ± 1.5 25.0 ± 1.6

Outer crown 4.9 ± 0.7 6.0 ± 0.8 5.4 ± 0. 7

Tot 26.1 ± 3.9 27.3 ± 1.7 30.4 ± 1.7

Experimental uncertainty due to source activity uncertainty (15%)

252Cf neutron energy distribution

TAGS uses large 4 scintillation detectors, aiming to detect the full -ray cascade rather than individual -rays

Deconvolution with spectrometer response to decay

spectrumstrength

kjkj

-1

RgR

dRf

1

0

""j

kjkb

1

21)(

s

TEQf

IS

i

ii

An ideal TAS would give directly the -intensity I

Response from MC simulations and nuclear statistical model

Clean sources & minimum of statistics J.L. Tain

T. Cocolios

Pumping in the cooler:

G. Neyens, K. Flanagan, B. Cheal, F. Charlwood, P. Campbell

1.9 m

neutralizer re-ionizer

unpolarized ANa+1

30 keV

polarized ANa+1

B10Gauss

C.D.P. Levy et al.Nucl. Instr. and Meth.B204 (2003) 689

TRIUMF ISACPolarized Beam Line

pumping within 2.6s

beam velocity tuning

polarized ANa0

Kiefl 8Li: longitudinal-NMRcondensed matter physics

Kiefl 8Li: transverse-NMRcondensed matter physics

Shimoda ANa: transverse 11Li: transversedecay spectroscopy

two frequencylaser beams

T. Shimoda

- n, - n-- , coincidence

Li-glass scintillator: Δn = 0.92% x 5, n =2.1%@15 keV, n = 1.3%@80 keV En 1 keV≧ Flight Length: 130 mm 　　　　　　　　　　　　　　　　　　　　　　

Ge detector: HPGe, 50 and 60 %, Δ= 3.2x10 @3 MeV

plastic scintillator: Δn = 1.8% x 6, n = 19%@2 MeV, En ≧500 keV Flight Length: 1.5 m

-ray telescope: Δ = 14.7% x 2, 　 = 90%

-3

En = 1 keV – 9 MeV

Experiment at TRIUMF (E903) Experiment at TRIUMF (E903) 11Ligs

11Be*+10Be* + n

10Begs +

30.5 keV

50% polarization

-decay asymmetry

Status of MLLTRAP Status of MLLTRAP

- 7T trap magnet, identical to SHIPTRAP, JYFLTRAP

Status:- operational with Δm/m~5.10-8

(without systematic errors)- systematic effects on B field studied

DESIR Workshop, Leuven, May 26-28, 2010

24:00 36:00 48:00 60:00 72:00 84:00 96:00

-1.0x10-7

0.0

1.0x10-7

( C - <

C> ) / <

C >

RE

LA

TIV

E C

HA

NG

ES

B /

B

TIME (hh:mm)

B/t 1/ B = - 1.3 (3) x 10-9 / h

24:00 36:00 48:00 60:00 72:00 84:00 96:00

-1.0

-0.5

0.0

0.5

1.0

TE

MP

ER

ATU

RE

CH

AN

GE

S (K

)

Troom - 293.6 K

P. Thirolf, D. Lunney

04/21/23 16

[ O. Naviliat-Cuncic & N.S., Phys. Rev. Lett. 102 (2009) 142302

reduce by new measurements of Ft values and

correlation coefficientsE. Lienard, N. Severijns

The DESIR physics workshop

Introduction...

Present experiments and equipment...

The future experiments and interest...

146Gd

100Sn

2nd FP

1st FPA~74 N~Z

Existing TAS measurements

132Sn

78Ni

100Sn

Superallowed

Proposed TAS measurements

• Nuclear structure @ magic nuclei• Astrophysics: r-process• Fundamental physics• Reactor decay-heat• Reactor neutrino-spectrum

Motivation

• GT- resonance is close to Qβ window

• Complementary to earlier studies using high resolution (Leuven group)

~ 78Ni

Mass scan

Measured TAS spectra

Measurement of Nb, Mo and Tc isotopes for Reactor Decay Heat

IGISOL separator + ion guide source: refractory elements

JYFLTRAP Penning trap: isotopic purification

TAS measurements @ Univ. Jyvaskyla

Valencia, Jyvaskyla, Debrecen, Gatchina, Surrey

70 72 74 76 78 80 82 84 86 88 90 92

6000

8000

10000

12000

14000

16000

S

(2N

) in

ke

V

Neutron number

70 72 74 76 78 80 82 84 86 88 90 92

6000

8000

10000

12000

14000

16000

S

(2N

) in

ke

V

Neutron number

122Pd

128Cd

135Sn

140Te

146Xe

130Cd from Q (ISOLDE) PRL 91(2003)162503

Penning trap data

SPIRAL2 hunting for

odds

Candidate:Candidate: 257 257Rf Rf

DESIR Workshop, Leuven, May 26-28, 2010

SHIPTRAP:2010 : 255Lr 255No, 256Lr: ~ 100 nb

04/21/23 24N. Severijns, DESIR Workshop - Leuven - May 26-28, 2010

37K – D. Melconian, J.A. Behr et al., Phys. Lett. B 649 (2007) 370

37( ) 0.755(24)

0.779(6)SM

B K

B

MW2 > 180 GeV/c2 (90 % C.L.)

Example of polarized atoms in MOT: neutrino asymmetry parameter for 37K

5 % precision

very difficult to determine nuclear polarization precisely

!

TRINAT MOT trap @ TRIUMF

The DESIR physics workshop

Introduction...

Present experiments and equipment...

The future experiments and interest...

APPENDIX III:

DESIR collaboration agreement

After the construction of the DESIR infrastructure (RFQ cooler SHIRaC, high-resolution separator

HRS, beams lines from S1, S2, and S3 to DESIR), the DESIR collaboration proposes the

installation of a certain number of general equipment (stable ion sources, identification station,

general-purpose ion buncher GPIB) which will be available to all experiments. This equipment will

be provided by the collaboration as a whole or by different groups and financed by different means

(ANR, regional grants etc.).

Part of the equipment necessary to perform experiments in DESIR exists already or is presently

built and commissioned. Other parts will be constructed in the next few years. This equipment is

financed by different parts of the DESIR collaboration and will be installed permanently or for

longer periods in the DESIR hall. Details of this process will be fixed in a Memorandum of

Understanding which is presently being elaborated.

The major equipment consists of stable ion sources and a general purpose ion buncher (D. Lunney et al.) with a totalinvestment cost of 250 k€ an identification station with tape drive and associated detectors (Ph. Dessagne et al.) with atotal investment cost of 100 k€ a Penning trap system for mass measurement (the MLLTRAP) provided by the Ludwig-Maximilian University of Munich (P. Thirolf et al.) with a total investment cost of about 700k€ a magneto optical trap for studies “beyond the standard model” proposed by KVI Groningen(H. Wilschut et al.) with an investment cost of 500 k€ the LPCTRAP for weak-interaction studies (G. Ban et al.) with a total investment cost of225 k€ a Collinear Laser-Spectroscopy setup (the LUMIERE facility) provided by the University ofLeuven (G. Neyens et al.) , the University of Manchester (P. Campbell et al.) and the IPNOrsay (F. Le Blanc) with a total investment cost of 970 k€ a total absorption gamma spectrometer provided by CSIC Valencia (J.L. Tain et al.) with atotal investment cost of 425 k€ the TETRA neutron multiplicity setup proposed by JINR Dubna (Y. Penionzhkevich et al.)with an investment cost of 200 k€ a neutron time-of-flight spectrometer provided by a CIEMAT (D. Cano Ott et al.) - LPCCaen (N. Orr et al.) collaboration with an investment cost of 445 k€ a double Penning trap system for beam purification and preparation proposed by CENBordeaux-Gradignan (B. Blank et al.) with a total investment cost of 750 k€ a fast-timing setup provided by a collaboration led by G. Simpson (LPSC Grenoble) with aninvestment cost of 50 k€ a 4p charged particle array proposed by CEN Bordeaux-Gradignan (B. Blank et al.) andCSIC Madrid (M.J.G. Borge et al.) with a total investment cost of 130 k€

The DESIR physics workshop

The range of beam...

The beamtime...

The timing...

DESIR (typical example) 29 weeks of RIB/year: 10 weeks of ISOL RIB from SPIRAL2, 4 weeks from S3, 15 weeks from SPIRAL1 DESIR (typical example) 29 weeks of RIB/year: 10 weeks of ISOL RIB from SPIRAL2, 4 weeks from S3, 15 weeks from SPIRAL1

Beamtime…

Beamtime