# Presentation: 804758

## LARP

- Tanaji Sen

## LARP - Overview

- US LARP: BNL, FNAL, LBL, SLAC collaboration
-     **Goals**: 1) Make more LHC luminosity earlier
-                 2) Use, develop & preserve unique US
-                     resources & capabilities in accelerator
-                     science & technology,
- Accelerator Systems (AD & APC), Magnets (TD)
-   Within APC and AD
- Scientists: 12
- Engineers and designers: 8
- Guest scientists and post-docs: 4
- Graduate student: 1
- Hardware commissioners at CERN: 2
- Related activities funded by FNAL: LAFS, LHC@FNAL

- All Labs

## Accelerator Physics
Beam-beam simulations and wire compensation [T.Sen]
      FY08: simulations vs experiments in RHIC, benefits to LHC luminosity. Good agreement with single beam.
Electron Lens compensation [V.Shiltsev] – new in LARP
      FY08: Gaussian e-gun for head-on beam-beam compensation, application to RHIC.
Crystal Collimation [N.Mokhov] - new
    FY08: Install crystal, measure volume reflection and collimation efficiency
Instrumentation
Schottky Monitor [A. Jansson]
     FY08: Deliver controls interface to CERN. Monitors installed in LHC. 
AC Dipole [S. Kopp]
     FY08:  Linear and nonlinear Tevatron optics measurements. Measured beta* at B0 and D0. 
Chromaticity tracker and feedback [C.Y.Tan]
      FY08: Collaborate with SPS & RHIC measurements

- Beam-beam simulations and wire compensation [T.Sen]
-       FY08: simulations vs experiments in RHIC, benefits to LHC luminosity. Good agreement with single beam.
- Electron Lens compensation [V.Shiltsev] – new in LARP
-       FY08: Gaussian e-gun for head-on beam-beam compensation, application to RHIC.
- Crystal Collimation [N.Mokhov] - new
-     FY08: Install crystal, measure volume reflection and collimation efficiency
**Instrumentation**
- Schottky Monitor [A. Jansson]
-      FY08: Deliver controls interface to CERN. Monitors installed in LHC.
- AC Dipole [S. Kopp]
-      FY08:  Linear and nonlinear Tevatron optics measurements. Measured beta* at B0 and D0.
- Chromaticity tracker and feedback [C.Y.Tan]
-       FY08: Collaborate with SPS & RHIC measurements

- LARP: Accelerator Physics, Instrumentation

## LARP: JIRS, Commissioning, LAFS

**Joint IR Studies** (with TD) - new
- Optics Layouts [J. Johnstone]
-       FY08: Optics layout with Nb3Sn magnets in the inner triplet for the Phase I and Phase II upgrades, crab cavity insertion
- Operational Margins [N. Mokhov]
-       FY08: Energy deposition studies with Nb3Sn magnets
**Beam Commissioning** [E. Harms]
-    FY08: 1 LTV and several instrument commissioners to participate. Dedicated LHC commissioning starts in November 2008 – for now
**Hardware Commissioning** [M. Lamm]
-    FY08: Power Supplies & Cryogenic systems.
**LAFS** [D. McGinnis]
-    FY08: Software applications for the Wire scanner, Synchrotron Radiation Monitor developed, applications for other instruments proposed
**LHC@FNAL** [E. Gottschalk]
-    FY08: Remote participation in SPS chromaticity measurements. Network security fears at CERN: remote commissioning uncertain

## LARP: New tasks & LAUC

**Future LARP activities** **at FNAL** – to be proposed
- Injector Studies
-      - space charge studies for new LHC injectors
- Optical Diffraction Radiation Diagnostics
-      - non-invasive technique for beam profile measurements
- Crab cavity beam dynamics
-      - impact of crab cavity and beam-beam interactions
- Other ideas welcome!
**New Construction project proposed LAUC**
- Phase 1 (~2x1034 Luminosity)
- Collimators, Superconducting Magnets, SPS Electron Cloud Feedback
- Phase 2 (1035 luminosity)
- Electron lenses, Crab cavities, SPL RF modules

-  $M                2010   2011  2012  2013  2014  2015  2016  2017
- Phase 1           15      20       10        5
- Phase 2                                 10      15       20     20      15     10