# Presentation: 487894

## High Intensity Neutrino Source R&D Program - Mission, Status, Plans, and Support Needs -For AD Department HeadsMarch 2007Bob Webber

## High Intensity Neutrino Source R&D

**The Mission**
- We have been tasked by the Directorate, since nearly two years ago, to assemble and operate with beam the front-end of the Proton Driver linac in Meson Detector Building by the end of 2010.

## 80 % of the Cost

- β=1

- β=1

- β=1

- β=1

- β=1

- Modulator

- β=1

- β=1

- β=1

- β=1

- Modulator

- 36 Cavites / Klystron

**TESLA LINAC**

*8 Klystrons*
*288 Cavities in 36 Cryomodules *

- 1300 MHz  β=1

**β****<1**** TESLA LINAC**

*2 Klystrons*
*96 Elliptical Cavities*
*12 Cryomodules** *

- 1300 MHz     0.1-1.2 GeV

- β=1

- β=1

- β=1

- β=1

- β=1

- Modulator

- β=1

- β=1

- β=1

- β=1

- Modulator

- β=1

- β=1

- β=1

- β=1

- β=1

- Modulator

- β=1

- β=1

- β=1

- β=1

- Modulator

- β=1

- β=1

- β=1

- β=1

- β=1

- Modulator

- β=1

- β=1

- β=1

- β=1

- Modulator

- 10 MW
- TESLA
- Multi-Beam
- Klystrons

- 48 Cavites / Klystron

- β=.81

- Modulator

- β=.81

- β=.81

- β=.81

- β=.81

- β=.81

- 8 Cavites / Cryomodule

**0.5 MW Initial **
**8 GeV Linac**

- 11  Klystrons  (2 types)
- 449 Cavities
- 51  Cryomodules

**“****PULSED RIA”**
- Front End Linac
- 325 MHz
- 0-110 MeV

- H-

- RFQ

- MEBT

- RTSR

- SSR

- DSR

- Single
- 3 MW
- JPARC
- Klystron

- Multi-Cavity Fanout at 10 - 50 kW/cavity
- Phase and Amplitude Control w/ Ferrite Tuners

- DSR

- Modulator

**10 MW**
**TESLA**
**Klystrons**

## Following Orbach’s ILC Timeline Comments

**Re-invigorated interest in the Director’s Office in Proton Driver ‘synergies’ with ILC and other ideas**
**Director’s statement that he would seek to build 6 GeV section of ILC**
**Establishment of steering group under Young-Kee Kim “to generate strategic plan for accelerator effort”**
**Immediate impact on HINS/PD effort**
- None on HINS Meson R&D mission
- Start (actually revival of) discussions on possibility of using 6 GeV section of ILC as the high energy end of an 8 GeV Proton Driver
- Don’t you simply add on the front 2 GeV?
- Are we expected to fit three times the RF power into the ILC physical geometry?

## From Director’s 3/9/07 ILC Fest Talk

## A Possible OutcomeFrom Director’s 3/9/07 ILC Fest Talk

- A Possible OutcomeFrom Director’s 3/9/07 ILC Fest Talk

**Here we are, although the mission is actually 60 MeV and FY07/FY08 funding is actually $2.2/2.8M M&S**

## HINS R&D Facilities Plan

***     *****To address accelerator physics questions for a new concept, low-energy superconducting Linac**
- we will construct key components of this Linac and integrate them into a demonstration accelerator in Meson Detector Building
**Pulsed 2.5 MW, 325 MHz klystron RF power source**
**325 MHz high power RF component test facility for studying RF power control devices**
**Test stand for 325 MHz RT cavities and a test cryostat for 325 MHz SC spoke cavities**
**Ion source and RFQ as a 2.5 MeV beam source**
**10 MeV Room Temperature Linac**
**Three 325 MHz SC spoke cavity cryomodules **
**All accelerator sections to be operated with beam up to 60 MeV to verify and quantify performance**
***This all adds up to building and operating a first-of-its-kind superconducting 60 MeV H- linac***** **

## 325 MHzFront-EndLinac

- 325 MHzFront-EndLinac

- 325 MHz Klystron – Toshiba E3740A  (JPARC)

- 115kV Pulse Transformer

**Modulator**
- Capacitor / Switch / Bouncer

- Charging
- Supply

- RFQ

- MEBT

- SCRF Spoke
- Resonator
- Cryomodules

- RF
- Distribution
- Waveguide

- Ferrite
- Tuners

- Single Klystron
- Feeds SCRF Linac
- to E > 100 MeV

## Layout Through Second β=.4 Cryostat

- Layout Through Second β=.4 Cryostat

**Ion Source**

**RFQ**

**MEBT**

**Room Temperature 16-Cavity, 16 SC Solenoid Section**

**One ****Β****=0.4 SSR 11-Cavity, 6-Solenoid Cryostat**

**Two ****Β****=0.2 SSR 9-Cavity, 9-Solenoid Cryostats**

**2.5 MeV**

**50 KeV**

**10 MeV**

**20 MeV**

**60 MeV**

**30 MeV**

## HINS Floor Plan in Meson Detector Building 

**RF Component Test Facility**

**Ion Source and RFQ Area**

**150 ft.**

**Cavity Test Cave**

**60 MeV Linac Cave**

**Klystron and Modulator Area**

**Existing CC2 Cave**

**ILC HTC Cave**

## Klystron and Waveguide Installation

## Modulator and Pulse Transformer

**Modulator Signals at 5.6 KV into Resistive Load**
**February 2, 2007**

- Modulator Output Current 200A/div

- Bouncer Voltage

- Capacitor Bank Voltage at 5.6 KV

- Pulse Transformer Output Current 2A/div at 36A

## RF Component Test Area Cage

## Electronics Installed

- Klystron solenoid power supplies

- Klystron and modulator interlocks

- Control system timing crate

- Personnel safety interlocks

## HINS Room Temp Cavity in Production

**Brazed cavity before welding end walls**

**Body wall roughed in and annealed.**

**Cavity in concept**

**Copper spokes rough machined and annealed**

## Bead Pull thru Completed RT CH-01

**Relative field amplitudes**
**Blue – measured**
**Red**** - predicted**

**View thru RF drive port during bead pull**

## Superconducting Cavity Fabrication

## Quick Status

**2.5 MW, 325 MHz modulator/klystron system is installed**
- Modulator is commissioned
- Klystron commissioning planned to commence on April 2
**Fast ferrite vector modulators await RF power testing **
**Ion source work is proceeding on 50 KeV sources, both H+ and H- sources**
**2.5 MeV RFQ is in fabrication, delivery expected end of summer**
**First Room Temperature spoke cavity will be ready for power testing in a few weeks**
**Two superconducting spoke cavities are now in fabrication, delivery of first expected in April**
**Prototype superconducting solenoid is built and final design is progressing**
**Cryostat for SC cavity testing is in design review**

## Recent AD HINS Effort

## Recent AD HINS Effort

## HINS Near-Term Schedule Goals in MDB

**325 MHz RF power system commissioning**
- Commence in two weeks
**Component testing in RF test area**
- Awaiting RF power system commissioning
**First room-temp cavity full power tests**
- Late April / Early May
**Design and construct fenced ion source / RFQ area and move 50 KeV proton source from MS-6 to MDB**
- By mid-summer, i.e. before end of summer accelerator shutdown
**Procure and install RF power distribution system to RFQ area**
- By mid-summer, i.e. before end of summer accelerator shutdown
**Install RFQ and commission**
- Operate RFQ at full RF power by mid-September 2007
- 2.5 MeV beam before end of calendar year 2007

## Tasks Required for Near-Term Objectives

**Water**
- Install new pump on existing skid
- Install water to ion source/RFQ
- Develop design specs for new skid with higher flow capacity
**Mechanical**
- Install coax transmission lines to cavity test cave
- Construct ion source/RFQ area fencing
- Support ion source installation in MDB
- Design/Install RF distribution components to RFQ
**Vacuum**
- Establish vacuum system for room temp cavity testing in cave
- Design/install vacuum system (with Piekarz et al.) for ion source/RFQ
**EE**
- Deliver ~ 6 regulated power supplies for ferrite vector modulators (testing and RFQ)
- Engineering for global solenoid, steering, and FVM power system design
- Charging supply

## Tasks Required for Near-Term Objectives

**Controls**
- Provide interface with” ILC Controls” so we aim for common methods
- Continued/enhanced daily controls support
- EPICs database management and entry
- EPICS applications
- New timing system rate generator hardware
**RF**
- Provide/commission initial LLRF system
**Cryo**
- Support TD with test cryostat cryogenics system issues
- Install cryo transfer lines into cavity test cave
- Support TD with accelerator spoke cavity cryostat and interface design to understand Linac enclosure cryo physical requirements/features
**Instrumentation**
- Supply Semenov digitizer boards

## 2008-9 HINS R&D Objectives

**Superconducting cavity test cryostat installation and operation**
**Linac cave design, construction, and utilities**
**Demonstration of independent RF amplitude & phase control of multiple Room Temperature cavities on single klystron**
**Room temperature Linac installation**
**10 MeV operation**
**Ready to install SC cavity cryostat(s) and high energy beam transport in Linac cave in 2010**

## Tasks Required for 2008-9 Objectives

**Water**
- Install new skid
- Install water to Linac cave
**Mechanical**
- Install coax transmission lines to room temp section of Linac cave
- Install room temp Linac beam line and components
**Vacuum**
- Install vacuum system for room temp Linac
**EE**
- Complete engineering design for global solenoid, steering, and FVM power system
- Deliver ~ 40 power supplies for ferrite vector modulators
- Install/commission power system for room temperature Linac components
- Deliver final klystron charging supply
- Vacuum controls

## Tasks Required for 2008-9 Objectives

**Controls**
- Provide interface with” ILC Controls” so we aim for common methods
- Continued/enhanced daily controls support
- EPICs database management and entry
- EPICS applications
- Hardware support
**RF**
- Provide/commission multi-cavity LLRF system
**Cryo**
- Support TD with test cryostat cryogenics system issues
- Install cryo transfer lines into cavity test cave
- Support TD with accelerator spoke cavity cryostat and interface design to understand Linac enclosure cryo physical requirements/features
- Completer Linac cave cryo system design
**Instrumentation**
- Specification/design/engineering/procurement of room temp Linac beam instrumentation
- Suppy/install room temp Linac beam instrumentation

## Conclusion

**A program to address key accelerator physics and technology questions of a new concept, low-energy superconducting Linac is actively being pursued**
**The present mission is to assemble a ~60 MeV front-end demonstration including three superconducting cavity cryomodules by 2010 **
**Facilities are being out-fitted now**
**325 MHz RF power will soon be available**
**Copper and Superconducting cavity design and first article fabrication is well underway**
**Plan to have 2.5 MeV beam from RFQ by end of 2007**
**Increased AD support is needed to stay on track for coming year objectives **