ATLAS Capabilities Today May 15, 2014 Richard Pardo May 15, 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 1.

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Presentation transcript:

ATLAS Capabilities Today May 15, 2014 Richard Pardo May 15, 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 1

Outline 1.Overview of ATLAS Intensity Upgrade A.Phase I: RFQ installation and PII reconfiguration B.Phase II: New Booster cryostat and reconfiguration C.Main goals: i.Improved transmission ii.Excellent high current performance 2.Current A.Un-irradiated samples used to test laser/ECR performance i.Yield check ii.Background check B.Test accelerator system scaling improvements C.Test overall ‘clock’ program D.Test FMA/detector system E.Explore operating mode options May 15, 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 2

ATLAS Upgrade Activities: Two Phases May 15, 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 3 Phase I January 2013 Phase II March Improved transmission 2.Good high current performance

ATLAS Upgrade Project – Two Major Phases  Phase I: Replace first three linac resonators with new RFQ linac section –Completed in January 2013 –Ran accelerator from January to May 2013 –Included March 2013 MANTRA test run –Excellent overall performance –Planned improvements Circulators to protect RF Amplifiers at high power Full computer control and monitoring Before After ATLAS USERS MEETING: ATLAS Today R. Pardo 4 May 15, 2014

Top view of new RFQ Linac May 15, 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 5

PII cryostat reconfiguration  RFQ output energy is 293 keV/u  First three PII resonators have bad effect on beam optics  Therefore these resonators were retired from use in PII DOE ATLAS S&T Review Facility Performance & Upgrade Status Richard Pardo 6 July 30, 2013 Beam

Phase II: Center (“Booster”) Section Rebuild  Accelerator shutdown began in last days of May 2013  Early start due to complete failure of major ATLAS Power Substation –Relatively new substation –Loose high-current connectors (???) –Full power restored in October 2013  Complete disassembly and rebuild of the center of the accelerator –New cryostat of seven resonators (7 new resonators replaced 16 old resonators) –World-record accelerating field performance  Restart of facility began in January 2014 –PII beam acceleration and low-energy irradiation.  “Full” operation restored March 2014  Over $1M total cost to Laboratory ATLAS USERS MEETING: ATLAS Today R. Pardo 7 May 15, 2014

ATLAS Upgrade Activities: Second Phase New Booster Cryostat and complete Booster Rebuild May 15, 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 8 Phase IPhase II

Before Project “Booster” Room  Booster Room June 10, 2013 ATLAS USERS MEETING: ATLAS Today R. Pardo 9 May 15, 2014

Booster Upgrade Progress  June 12, 2013 August 8, 2013 ATLAS USERS MEETING: ATLAS Today R. Pardo 10 May 15, 2014

Phase II: Center (“Booster”) Section Rebuild  November 2013 January 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 11 May 15, 2014

Phase II: Center (“Booster”) Section Rebuild  March 2014 April 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 12 May 15, 2014

Facility Configuration Changes May 15, 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 13 1.Tandem now retired A.All beam lines disconnected B.Beginning the process of SF 6 disposal C.One lab interested in entire tandem system 2.Tandem vault plans A.South section for ATLAS operation B.North section for ion source and Accelerator R&D Development C.Central section for expanded stopped beam research area EBIS New low-energy experimental area Ion Source and Accelerator Dev. ATLAS Operations

ATLAS Present Beam Properties May 15, 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 14 Beam Types 1.Any stable isotope beam available A.In principle. B.See ATLAS website for current ‘normal’ list. 2.In-flight Radioactive Beams A.Charge exchange, 1-2 nucleon transfer. B.20 isotopes produced so far. C.Poorer beam quality than stable ions A.Purity B.Energy spread C.Emittance and beam size 3.CARIBU Fission Fragment Beams A.Goal of routine operation by end of ATLAS Beams for FY2012 B.Beam properties same as stable ions C.See later talk on overall status. 4.High Current performance A.Long term goal measured in pμA at target (eventually ~10 pμA ) B.Recently demonstrated up to 7 pμA through PII

Available Beam Energy May 15, 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 15 * * ATLAS Operations Envelope limits all beams to energy < 23 MeV/A

Summary May 15, 2014 ATLAS USERS MEETING: ATLAS Today R. Pardo 16 ATLAS has now returned to full technical operation 1.All major capabilities are now available A.Some further improvements are ongoing B.Major facility improvements underway or actively planned: A.AGFA B.EBIS (and move of RF test facility) C.AIRIS D.Tandem removal and changes to vault 2.Four new operators are in training A.Limits operation to 5.33 days/week B.Additional operating time should be possible in July. C.Full staff restored by October 2014.