Beam Strategy SAP-EEC-July2012 Strategy...July 12, 2012 SAP-EEC - Beam Development 5 0 500 1000 1500...

Canada’s National Laboratory for Particle and Nuclear PhysicsLaboratoire national canadien pour la recherche en physique nucléaire

et en physique des particules

Beam Development Strategy

• Beam Development Activities

• High-mass accelerated beams

July 09, 2012

Owned and operated as a joint venture by a consortium of Canadian universities via a contribution through the National Research Council Canada

Propriété d’un consortium d’universités canadiennes, géré en co-entreprise à partir d’une contribution administrée par le Conseil national de recherches Canada

• High-mass accelerated beams

• Backlog and current proposals

Reiner Kruecken | Science Division Head | TRIUMF

Professor of Physics | University of British Columbia

Beam Development Activities

July 12, 2012 SAP-EEC - Beam Development 2

Sustain reliable operation =>- Complete conditioning station- TM refurbishing- Yield station upgrade

Expand program of actinide targets =>- Completion of North hot cell

ISAC Beam Development Program Goals

FOCUSFOCUS

FOCUSFOCUS

SAP-EEC - Beam Development 3

Develop new RIBs for science =>- High Mass beam delivery- New laser beams, targets, ion source- Implantation Station

Deliver more RIB hrs for science =>- Quick services disconnect prototype

July 12, 2012

FOCUSFOCUS

1000

1200

1400

1600

1800

Ho

urs

ISAC Downtime improves in 2011

ISAC Downtime: 2005 – 2011

July 12, 2012 4

0

200

400

600

800

2005 2006 2007 2008 2009 2010 2011

Ho

urs

Year

Target/ion source downtime ISAC facility downtime

SAP-EEC - Beam Development

2012 ISAC Performance to date:RIB Hours – Schedules 121 & 122

2000

2500

3000

Scheduled

Delivered (YTD)


0

500

1000

1500

Apr 15 May 5 May 25 Jun 14 Jul 4 Jul 24 Aug 13 Sep 2 Sep 22

Delivered (YTD)

75/80% reliability

ISAC Beam Development Plan


See http://www.triumf.ca/experimental-program/resources

Target Sequence 2012:High Impact Experiments and Beam Development

Tgt IonSource

Main Purpose of target Development Isotopes

0 SiC FEBIAD Release test w/ target from 2011 17,18F

1 Nb SIS/RILIS Develop CSB techniques with 76,77Rb, b-NMR 78Y, 60Mn, Zn, 8Li, 76,77Rb CSB

2 SiC RILIS DRAGON, TUDA exp. w/ 26mAl,26gAl 26mAl,26gAl

3 Ta SIS/RILIS b-NMR, 11Be for ab-inito tests

4 UO FEBIAD Development target w/ TITAN, 8pi standby 19,20,22C (CO), 26-30Ne, 46,47,48Ar


4 UO2 FEBIAD Development target w/ TITAN, 8pi standbyC for ab-inito, Ne, Ar for shell evolution

19,20,22C (CO), 26-30Ne, 46,47,48ArKr, Xe, Rn

5 UCx SIS/RILIS Shell evolution (Al,Mg K), Fr program 130-137Sn

6 NiO FEBIAD Development target for 10C (CKM), 11C (Astro) 10,11C

7 Nb SIS/RILIS b-NMR, accelerated 76Rb from CSB to TIGRESS 76,77Rb CSB

8 UCx FEBIAD New ion-source for UCx: n-rich O 20,22O, 124,128I (Au,Po post -irradiation)

9 TiC SIS/RILIS 37K for improved TRINAT exp., beta-NMR K, 8Li

Progress on UC2 targets in 2011

• Safety upgrades (target hall filtration system and various safety systems)

• CNSC license amendment (increasing max. p+ current from 2 µA / 1000µAh to 10 µA / 5000 µAh)

• 2 UC2 target runs at 2 µA (August 2011) and 10 µA (December 2011)

Element Ionization Element IonizationExtracted RIB:

July 12, 2012 8

Element Ionization

method

Element Ionization

method

Ac Surface,

laser

Ca Surface

Ra Surface K Surface

At Laser Mg Laser

Fr Surface Na Surface

Cs Surface

In Surface

Rb Surface

Extracted RIB:


Online yieldsdatabase updated

Neutron-rich Mg from UC2 target #3

46 403.06 cm-1

Mg IP 61671.02 cm-1

80693.01 cm-1

291.6 nm

Yield per mA/s

July 12, 2012 9

46 403.06 cm-1

0 cm-1 2p63s2 1S0

285.3 nm

880.9 nm

Resonant laser ionization provides a verypure beam, with a total ion yield ratio forlaser off/laser on of 1.4·10-4 at mass 33.


Sp=0

82

126

82

10 mA 500MeV protons on 16 mg/cm2 UCx

102Sr(5 new levels)

205Fr first laser fluorescence data ever!! Important for Fr PNC studies

World record Mg yields

V. Simon, PRC

A. Voss

Sn=0

2 8

2028

50

50

28

82

20

N

Z

V. Simon, J. Dilling, H. Schatz

July 09, 2012 TUG AGM- Science Division 10

World record Mg yields

Z. Wang

P. Kunz

Post-irradiation RIB

223Ra 108/s224Ra 107/s225Ac 107/s

Yields approx.2 weeks after end of run

July 12, 2012 11

223Ra decay (α)


CollectionStation

TRILIS - lasers to all target stations

full scheduling flexibility & availability: lasers @ ITW & ITE

ITW laser transport

new ITE laser transport

Jens Lassen | TRIUMF Resonant Ionization Laser Ion Source


yield database:http://www.triumf.info/facility/research_fac/yield.php

(2010) full complement of TiSa lasersLIS @ ITW & ITE -> full scheduling flexibility

(2011) full off-line development capabilities1st schedule with 50%+ TRILIS shiftslaser operation with GHz/wk stability

status 06/2011 TRILIS

(2012) Seven new TRILIS beams:

off-line development Sc, Mn, Ge, Y, Sb, etc.

laser spectroscopy At (S1237)

on-line development & deliverySc, Mn, Cu, Zn, Ge, Ra, Ac

continued efficiency improvements(schemes into auto-ionizing states)

status 07/2012


(2012-13) fast kicker (beam gating),complement laser transport optics

(2013-14) RFQ LIS on-line (isobar free beams),laser trigger

_target

500 MeV p+

Pulse structureof RILIS ions

towards isobar-supression: beam gating & RFQ-LIS

laser trigger(2013-16) 15kHz rep. rate laser operation(2014-17) multiple beams & ARIEL lasers,

Doppler free spectroscopy control system integration

T RILIS off-line developments:(2012–2017) 2 new elements/y (Y, Cd, Sb, Lanthanides, etc.)

RFQ LIS optimization & reliabilitylaser source reliability improvements

laser developments for select elements (RILIS schemes)

500 MeV p+

continuous 25 mm

RFQ-LIScold RF-ion guide replaces hot transfer tube

-> eliminates residual surface ionization


Accelerate High Mass beams (A>29)


• CSB upgrade

• MPET power supply upgrade A/q=7

• Automatic tune scaling implemented (A/Qchanges possible within ~15 minutes)

• Implement diagnostics detectors

High Mass Developements

• Implement diagnostics detectors

– dE/E Silicon telescope (used in May 2012 run)

– Bragg detector (Commissioning in July/August)

– beta-gamma-decay station at HEBT


• Initial improvements:

– Aluminum plasma chamber and injection electrode

– First attempt to remove stainless steel from source

• Shutdown 2012:

– Pure aluminum

CSB upgrades

– Pure aluminumcoating of interior ofplasma chamber andmagnet steel

– Einzel lens removed –not needed for beamoptics


CSB aluminum coating of plasmachamber

1E-8

1E-7

1E-6

1E-5cu

rren

t[A

]with Al coatingno coating

18

4 5 6 7

1E-12

1E-11

1E-10

1E-9

1E-8

cu

rren

t[A

]

A/q

July 12, 2012 SAP-EEC - Beam Development

MEBT dipole power supplies upgrade– Increased dipole fields– Increased A/q limit– Improved reliability

• Supplies installed and commissioned• A/q = 7 transport has been demonstrated

High Mass Delivery: Infrastructure & Diagnostics

New Diagnostics for particle ID• Si E/ΔE telescope

– Installed in SEBT3 beamline in ISAC-II exp. hall for first use– Compact enough to be located elsewhere

• Bragg detector– Fabricated in Munich for use at ISAC-II– On site; undergoing bench testing– To be tested in-beam at HEBT GPS before

installation in SEBT3July 12, 2012 SAP-EEC - Beam Development 19

Bragg detector

HMTF Additional Diagnostics

`PSID1

2

Si Telescope

RIBRIB

20

`

• Green dots: existing diagnostics – twoRutherford scattering detectors and a Sitelescope

• Red dots: desired locations of activitydetectors – highest priority is at Prague endstation – others suggested for MEBT (tuneRFQ phase), DSB (check RIB before SC-linac) and SEBT3 (check RIB at end station)

•Blue dot is for attenuator after CSBattenuator

`PSID5

RIB

RIB

July 12, 2012 SAP-EEC - Beam Development

Backlog and current proposals


ISAC plans

Operational plan:8 months operation per year(240 days, 8 targets, 5 days ovhd/tgt)

176 days RIB delivery

35 days Material Science (20%)

15-20% beam development

~ 105-110 days RIBs for SAP

July 1, 2012:535 RIB shiftswith H priority(2.5 yrs)


Facility plan:• Cont. target module refurbishment (plan working)

• Focus on high-mass beams for ISAC-II• charge breeder improvements• accelerator based purification schemes• improved beam diagnostics

• Kicker (2012) and RFQ (2013) for TRILIS suppress surface ionize contamination

ISAC Downtime

facility

targets

Proposals fur July 2012 SAP-EEC

ISAC-RIB ISAC-SIB Muons PIF

Addenda/StatusReports

97 27 0 15

New Proposals 117 63 36 0

Sum 214 90 36 15


Sum 214 90 36 15

ISAC-RIB shifts quota: 106 shifts

Oversubscription factor 2.02

Beam Strategy SAP-EEC-July2012 Strategy...July 12, 2012 SAP-EEC - Beam Development 5 0 500 1000 1500...

Documents

Transcript of Beam Strategy SAP-EEC-July2012 Strategy...July 12, 2012 SAP-EEC - Beam Development 5 0 500 1000 1500...