# Presentation: 013103

## Collaboration Meeting GoalsSteve Peggs

**Goal: Technical, Cost, & Schedule plan for FY06 & 07**
- 	to be reviewed June 1 & 2

## Strategy

***Strategy***
***Calendar & Milestones***
***(Hardware) Commissioning***
***Junior Workforce Pipeline***
***Magnet Program***
***Budget***

## Strategy

## Challenge chronology

- _	__	__Challenge__	__	__	__Luminosity__	__LARP_
- 	1) 	Snap-back			small			TF, LM, BC, ...
- 	2)	Stored energy		medium		RC, BC, ...
- 	3)	Beam-beam		nominal		IRBB, RC, BC, ...
- 	4)	Debris power		upgrade		Magnet R&D, ...
- Early LARP success is tightly linked to Tune Feedback, Luminosity Monitor, and Beam Commissioning activities
- Later come Rotating Collimators, and IR & Beam-Beam, etc
- Magnet R&D must proceed **now,** to be ready **then.**
- Early perceptions are prejudiced by the Construction Programs success – LARP does R&D, not production!

## From Tevatron to LHC

## IR upgrade - 2012?

- All scenarios incorporate state-of-the-art IR quads
- Some also use new-concept beam separation dipoles
- Other potential sub-system upgrades: beam-beam compensators, crab cavities, accelerating cavities, cryogenics, beam dumps, ....
- Need real operating experience to make optimal decisions!

## Ruggiero: "if the KEKB test with Crab cavities in 2006 is successful, we recommend the installation and test of Crab cavities in a hadron machine to validate a level of RF noise compatible with emittance preservation."

- Ruggiero: "if the KEKB test with Crab cavities in 2006 is successful, we recommend the installation and test of Crab cavities in a hadron machine to validate a level of RF noise compatible with emittance preservation."

- Raises the possibility of additional institutional involvement: KEK, JLAB, Cornell, [NSF], .....

## Slide 8

## Apr 4-5		Tune Feedback review, Port Jeff

- Apr 4-5		Tune Feedback review, Port Jeff
- Apr 6-8		Collaboration meeting 4, Port Jeff
- Apr 11-12		Luminosity Monitor review, LBNL
- Apr 15			Quarterly Report deadline
- May 16-20		PAC05, Knoxville
- May 23-27		WAO 2005, Bloomington
- May	??		US executive committee meeting, FNAL
- May	??		DOE Review dry run, ??
- Jun  1-2		DOE Review, FNAL
- Jun 6-8			DIPAC, Lyon
- Jun		??		LARP Advisory Committee, LARPAC, ???
- Jul		??		CERN-US Exec. comm meeting, CERN
- Aug 31- 3	CARE "Upgrade scenarios”, Arcidosso
- Sep 19-23		Magnet Technology MT-19, Genova
- Sep	??		CARE “RC Synchs. & LE injectors”, ??
- Oct		??		IR & Beam-Beam mini-workshop, FNAL
- Oct		??		Collaboration meeting 5, near FNAL
- Oct		??		CARE “SC pulsed magnets”, Frascati??

## Short “bladder and key” construction racetrack quadrupole

## Super-bunches – very long ones – are now eliminated as delivering too many events per interaction

- Super-bunches – very long ones – are now eliminated as delivering too many events per interaction
- Intermediate length “longitudinally flat” bunches?

## TAS

- Most debris particles (many kW?) are swept into the first dipole in a “dipole first” scheme

- TAN

- Question:
- “Could a magnetic TAS help limit the flux hitting the first dipole?”

## Tune feedback demonstration using a similar system 

- Tune feedback demonstration using a similar system
- (not routine)

- Chromaticies tracked through two ramps
- (feedback not yet attempted)

## Schedule slippage: some missing engineers & super-techs      – 45 out of 143 – proposed to come from National Institutes

- Schedule slippage: some missing engineers & super-techs      – 45 out of 143 – proposed to come from National Institutes
- LHC seeks a “nucleus of experienced people” in magnet, cryo, & quench protection systems – 5 or 6 ? – from U.S. labs

## Slide 15

## Slide 16

## New schedule,  maintaining first beam in 2007 is more extreme - 45 staff for 20 months becomes 90 for 14 (?)

- New schedule,  maintaining first beam in 2007 is more extreme - 45 staff for 20 months becomes 90 for 14 (?)

## There is general agreement (DOE, Lab directorates, CERN) that providing additional Hardware Commissioning support

- There is general agreement (DOE, Lab directorates, CERN) that providing additional Hardware Commissioning support
- 	- is the right thing to do
- 	- LARP is a potential vehicle for its organization
- Current LARP scope includes only Interaction Region (U.S. built deliverables), Beam, and Instrumentation commissioning
- But LARP has no mandate from DOE, CERN, or U.S. Labs.
- Response: seek a formal request letter from CERN to DOE & U.S. Labs.
- March 21: wordsmithing was almost complete, when ..

## LARP has created a Commissioning Task Force, chaired by Vladimir Shiltsev (FNAL), to look at ALL potential LARP commissioning roles

- LARP has created a Commissioning Task Force, chaired by Vladimir Shiltsev (FNAL), to look at ALL potential LARP commissioning roles
- Deliverable is a white paper, ready before this summers CERN-U.S. Executive Committee meeting
- This includes a head count based on a preliminary survey of potential names
- Information exchange and development at the LARP collaboration meeting (April)
- Vladimir's white paper presentation to CERN-U.S. committee may be the most significant next step in the Hardware Commissioning story
- Until then (basically) “wait and see” ...

## Junior Workforce Pipeline

## Junior workforce pipeline

- The junior workforce (accelerator science & engineering) needs a national strategy on par with SRF and Superconducting Magnets
- Accelerator R&D has historically been performed by HENP (not BES), with ILC participation by NSF – accept and embrace this!
- LARP swims upstream against post-doc perceptions and realities:
- 	- visas
- 	- dollar decline (“wage cuts”)
- 	- lack of new accelerator projects
- LARP junior workforce will help build the ILC – beware the pipeline bubble!
- Consider potential university, Japanese, and NSF roles in LARP by analogy with ATLAS, CMS, and ILC?
- 	- (eg crab cavities)

## Beginning in 2006, the U.S. LHC Accelerator Research Program (LARP) is looking for candidates with recent PhD's in Accelerator Physics or Accelerator Engineering to participate in:

- 	1) LHC commissioning, and/or
- 	2) an Interaction Region upgrade.
- Toohig Fellowships last 2 years, extendible by 1 year,
- with approximately equal time spent at a U.S. lab (BNL, FNAL, LBNL, or SLAC) and at CERN.
- If you are interested, please send a resume or contact Peter Limon
- (pjlimon@fnal.gov) or Steve Peggs (peggs@bnl.gov)
- See http://www.rhichome.bnl.gov/LARP for LARP information

## 1928		Born, Lawrence Massachussetts

- 1928		Born, Lawrence Massachussetts
- 1962		PhD in HEP, Johns Hopkins (& LBNL)
- 1965		Ordained as Jesuit priest, Boston College
- 1966		BNL Accelerator Department
- 1970		Founding member of Fermilab
- 1978-79	Sole American resident at Dubna
- 				internationalist at height of the Cold War
- 1988		SSC Central Design Group (LBNL)
- 			Deputy Dir. of Conventional Facilities (SSCL)
- 199n		DOE Office of High Energy Physics
- 				helped create “LHC Construction Project”
- 				enabled LARP as we know it
- 2001		Dies, at LHC PAC meeting, SLAC

## N. Mokhov: "In the 80s, Tim was twice my guest at IHEP (Protvino). I remember our disputes on scientific, political and religious issues. He spoke Russian rather well but with a terrible Boston accent."

- N. Mokhov: "In the 80s, Tim was twice my guest at IHEP (Protvino). I remember our disputes on scientific, political and religious issues. He spoke Russian rather well but with a terrible Boston accent."
- T. Toohig: “Being a Jesuit priest, if I see people playing
- games, I can get righteous; being Irish, I can shoot 'em in the knees.”
- T. Toohig: “Scientific knowledge is incompatible with a lazy faith.  If you're going to be a believer, the props are gone. You really have to come face to face with the question of God. It's more scary on one hand and richer on the other hand.”

## Magnet Program

## All upgrade scenarios require state-of-the-art quads, but final parameters will only be established with beam experience

- All upgrade scenarios require state-of-the-art quads, but final parameters will only be established with beam experience

## Ruggiero, Taylor, et al  - EPAC 04

- _Ruggiero, Taylor, et al  __- EPAC 04_
- “The choice of the coil aperture is driven more by the power density limit than by the beam acceptance”
- “An estimate of the radiation parameters of the magnets requires extensive simulations based on detailed knowledge”
- _LARP External Review __- June 2004_
- “LAPAC suggests that the main issue is demonstration that (Nb3Sn) quads can be made in both long and short lengths.”
- “... demonstration of a working long quadrupole, the first of its kind in the world, will be a key element in the decision to start ... the LHC luminosity upgrade.”

## Open Mid-plane Dipole review – Dec 04

- _Open Mid-plane Dipole review__ – Dec 04_
- “While the 'dipole first' scenario may not be implemented in the first IR upgrade, it remains a viable option for later upgrades.”
- "The 'open mid-plane dipole' developed at BNL is a novel concept with several features well suited to face the challenges of the separation dipole (D1) in the 'dipole first' scenario.”
- “We suggest continuing and expanding this development to include the aspects not yet covered .... in order to achieve a complete conceptual design ...”

## Slide 29

## Slide 30

## Constrained to match  DOE  guidance

- Constrained to match  DOE  guidance

## “Enable” L2 co-ordinators to resolve their plans & budget requests for FY06 & FY07 at the collaboration meeting, April 6-8.

- “Enable” L2 co-ordinators to resolve their plans & budget requests for FY06 & FY07 at the collaboration meeting, April 6-8.
- Level 4 “Task sheet” plans are already in place for 05 -> 06 -> 07
- Evaluate / prioritize /defer potential new tasks ...