# Presentation: 201442

## Proton DriverIntroduction

**Bob Kephart**
**Nov 20, 2003**

- AAC: Proton Driver

- 11/20/03

## Fermilab:Long Range Planning

**In April of 2003 the Fermilab Director formed a committee to provide advice on the long range scientific program of the laboratory**
**The membership of the LRP committee and its charge can be found at this web site:**
**   ****http://www.fnal.gov/directorate/Longrange/Long_rang_planning.html**
**Excerpt from the charge to the LRP committee...**

- AAC: Proton Driver

- 11/20/03

## LRP Committee Charge

**   “****I would like the Long-range Planning Committee to develop in detail a few realistically achievable options for the Fermilab program in the next decade under each possible outcome for the linear collider.  The goal in developing each option should be to optimize the opportunities available at Fermilab in this period for high energy physicists to answer the most important questions in our field.  The options should be guided by the priorities for the field as laid out in the HEPAP Subpanel and in the HEPAP response to the Office of Science on the facilities plan.”**

- AAC: Proton Driver

- 11/20/03

## Working groups

**To address this broad charge the LRP committee formed  working groups**
**Today you will hear talks describing the two options for a new  intense Proton Source**
**To obtain input from the community an Open Session took place on Oct 9, 2003**
**Showed Prototype Recommendations**

- AAC: Proton Driver

- 11/20/03

## LRP:PD Working group

**LRP:PD Subcommittee:**
**Bob Kephart, chair**
**Steve Geer **
**Chris Hill                    **
**Peter Meyers**
**Sergei Nagaitsev**
**Technical Advisors**
**Dave Finley****	****	****Past BD Head (proton economics)**
**John Marriner****	****Past BD Head**
**Shekar Mishra****	****Past deputy head MI project **
**Victor Yarba****	****	****SCRF R&D (started TD RF group)**
**Proponents**
**Weiren Chou     ****	****	****Synchrotron  based Proton Driver**
**Bill Foster****                 ****	****SCRF Linac based Proton Driver**

- AAC: Proton Driver

- 11/20/03

## LRP:PD participants/meetings

**Expert Participants**
- There are 27 additional people on the PD meeting distribution list
- Many made presentations or important contributions to the meetings
**Have had a series of 14 meetings**
- Well attended
- 3 joint meetings with other LRP sub committees
**Meetings now evolving into a regular Proton Driver R&D/Design meeting**
- More people joining the effort

- AAC: Proton Driver

- 11/20/03

## PD Meeting Topics

**Organization meetings, Work Plan**
**Physics arguments for a new proton source**
**Proton needs of various future experiments**
**Proton Driver Technology choices**
- Synchrotron version of PD
- SC Linac version of PD (relevance to LC R&D)
**Required R&D for each technology choice**
**Changes required to the Main Injector for MW beams**
**Technology for Targeting MW beams**
**Existing SCRF R&D program at FNAL**
**Discussed relationship of a Proton Driver to:**
-  Accelerator R&D at FNAL
-  Linear Collider R&D
**Discussion of Proton Driver subcommittee contribution to LRP committee final report, writing assignments**
**Discussion of  “Prototype Recommendations”**
**Proton Driver Open Session**
**Fast phase shifter R&D discussion****	**

- AAC: Proton Driver

- 11/20/03

## Recommendations: Caveats and Disclaimers

**In the open session I showed “prototype recommendations” from the Proton Driver working group. **
**What they are:**
- These are the recommendations that the Proton Driver working group will make to the full LRP committee.
- We have not yet discussed these recommendations in the full LRP committee, nor has the full committee attempted to balance these PD recommendations vs. other recommendations it might make.
**What they are not:**
- Final recommendations that have been “approved” or “endorsed” by the full LRP committee in any way.
**As such these recommendations should be thought of as the current thinking of the Proton Driver working group **
**We presented these to the larger FNAL community in the open session and the response was uniformly positive**

- AAC: Proton Driver

- 11/20/03

## “Prototype” Recommendation 1

**         ****The physics of neutrino oscillations is compelling. The Fermilab Main Injector, NUMI beam line, and the MINOS detector are unique Fermilab assets that can be brought to bear on these questions but new long baseline neutrino experiments are needed to understand the underlying physics. These experiments require an intense proton source. Such a source would also support a broad range of other physics programs. The intensity requirements of these experiments are beyond those achievable with feasible upgrades to Fermilab’s aging Linac and Booster complex.****  **
**We recommend that Fermilab adopt as its next accelerator construction project the creation of a 1-2 MW proton source (aka Proton Driver). We envision this project to be a coordinated combination of upgrades to existing machines and new construction. We believe this recommendation to be valid in any plausible linear collider scenario.**** **

- AAC: Proton Driver

- 11/20/03

## “Prototype” Recommendation 2

**       ****A new proton synchrotron or superconducting linac fed by a new copper linac and combined with changes to the Main Injector can provide the required proton source. There are many technical overlaps between the development and construction of a superconducting linac based Proton Driver and a cold technology Linear Collider. The use of SCRF in a Proton Driver also opens up a variety of other possible SCRF applications and technical collaborations at Fermilab.**
**We recommend that Fermilab adopt a superconducting 8 GeV linear accelerator as the **_**preferred option**_** to replace the existing Linac-Booster system.**** **

- AAC: Proton Driver

- 11/20/03

## “Prototype” Recommendation 3

**         ****Providing a new proton source in a timely fashion requires an urgent commitment of resources.  We believe that commitment of the necessary resources at this time can be consistent with existing laboratory commitments to Run II and to other projects.**
**We recommend that Fermilab create a group charged to submit to DOE documentation sufficient to achieve a statement of mission need (CD-0).  The group will elaborate the physics case, produce a Technical Design Report, prepare project management documentation including cost and schedule estimates, and prepare a plan for the required R&D.**** **

- AAC: Proton Driver

- 11/20/03