Summary of Relative RF Distribution Costs with Gradient Considerations (Work in Progress) Chris Adolphsen SLAC.

Slides:



Advertisements
Similar presentations
11/27/2007ILC Power and Cooling VM Workshop Mike Neubauer 1 RF Power and Cooling Requirements Overview from “Main Linac Power and Cooling Information”
Advertisements

J. Branlard ALCPG11 – March 2011 – Eugene OR, USA Results from 9mA studies on achieving flat gradients with beam loading P K |Q L studies at FLASH.
5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program. May 2011 Review of waveguide components development for CLIC I. Syratchev,
ILC Waveguide Production Industrialization Study Marc Ross AWLC14 May 15, 2014 Fermilab.
Normal-Conducting Photoinjector for High Power CW FEL Sergey Kurennoy, LANL, Los Alamos, NM, USA An RF photoinjector capable of producing high continuous.
Homework of HLRF 1 Shigeki Fukuda KEK 2012/4/23 HLRF Homework1 in KILC12 (Fukuda) 1.
April SCRF Meeting FNAL08 S.Fukuda 1 HLRF Summary and Work Assignment S. FUKUDA KEK.
KCS Ongoing R&D Christopher Nantista SLAC LCWS11 Granada, Spain September 29, …… …… …… … ….
1 X-band Single Cell and T18_SLAC_2 Test Results at NLCTA Faya Wang Chris Adolphsen Jul
Christopher Nantista ML-SCRF Technology Meeting July 28, 2010 REPORT.
Christopher Nantista SLAC TILC09 Tsukuba, Japan April 20, 2009.
Global Design Effort - CFS Baseline Assessment Workshop 2 - SLAC Reduced Bunch Number 1 BASELINE ASSESSMENT WORKSHOP 2 CONVENTIONAL FACILITIES.
US-ILC Waveguide Industrialization Study
Christopher Nantista Chris Adolphsen SLAC TILC09 Tsukuba, Japan April 20, 2009.
Christopher Nantista ILC 2 nd Baseline Assessment Workshop (BAW-2) SLAC January 18, …… …… …… … ….
RF Distribution Alternatives R.A.Yogi & FREIA group Uppsala University.
1 LCWS10 in Beijing DRFS Development (S. Fukuda) 27/03/2010 DRFS Development KEK S. Fukuda Introduction : DRFS R&D Plan Talks concerning with DRFS in LCWS10.
SLAC ILC High Level RF Ray Larsen LLRF Workshop, FNAL, January 17, 2005 Rev. 1.
November LCWS08 S. Fukuda 1 KEK HLRF Status and S1- global S. FUKUDA KEK.
Global Design Effort - CFS Baseline Assessment Workshop 2 - SLAC Positron Source Relocation 1 BASELINE ASSESSMENT WORKSHOP 2 CONVENTIONAL FACILITIES.
1 Main Linac Design Chris Adolphsen GDE SLAC April 6-7, 2006 MAC Review at FNAL.
Christopher Nantista ARD R&D Status Meeting SLAC February 3, …… …… …… … ….
Proposed TDR baseline LLRF design J. Carwardine, 22 May 2012.
Clustered Surface RF Production Scheme Chris Adolphsen Chris Nantista SLAC.
Klystron Cluster RF Distribution Scheme Chris Adolphsen Chris Nantista SLAC.
Linac R&D Update May 15, L-Band Source Consists of a LLRF system (VME/Epics based), a SNS High Voltage Converter Modulator (on loan), a Thales 2104C.
704MHz Warm RF Cavity for LEReC Binping Xiao Collider-Accelerator Department, BNL July 8, 2015 LEReC Warm Cavity Review Meeting  July 8, 2015.
1 LCWS10 Beijing S1 Global RF Prep (S. Fukuda) 29/3/ S1-Global RF Preparation KEK S. Fukuda Content Time Schedule of S1 Global in KEK Achieving Goal.
Klystron Cluster RF Distribution Scheme Chris Adolphsen Chris Nantista SLAC.
1 SPL Collaboration Meeting dec 08 - WG1 Introduction First SPL Collaboration Meeting Working Group 1 High Power RF Distribution System Introduction.
Higher-Order Modes and Beam-Loading Compensation in CLIC Main Linac Oleksiy Kononenko BE/RF, CERN CLIC RF Structure Development Meeting, March 14, 2012.
ML Planning for ILC08 First Pass Chris Adolphsen Hitoshi Hayano.
Power Distribution System R&D at SLAC Christopher Nantista ILC08 Chicago, Illinois November 18,
KSC Operation Control of Cavity Gradients Failure Analysis Near and Long Term R&D Effect on Beam Emittance Chris Adolphsen SLAC 9/7/2010 Going Native in.
LCWS13, November 2013 At the University of Tokyo W.–D. Möller Status of the TTF3 RF Power Coupler.
Ding Sun and David Wildman Fermilab Accelerator Advisory Committee
Aug 23, 2006 Half Current Option: Impact on Linac Cost Chris Adolphsen With input from Mike Neubauer, Chris Nantista and Tom Peterson.
Power Distribution System (PDS) Design and R&D Status Christopher Nantista SLAC SCRF Fermilab April 24, 2008.
John Carwardine 21 st October 2010 TTF/FLASH 9mA studies: Main studies objectives for January 2011.
BCD input from WG2 WG2 12/08/2005 H. Hayano Chris Adolphsen Terry Garvey Hitoshi Hayano.
The NLC RF Pulse Compression and High Power RF Transport Systems Sami G. Tantawi, G.Bowden, K.Fant, Z.D.Farkas, W.R.Fowkes J.Irwin, N.M.Kroll, Z.H.Li,
Summery of the power coupler session at the LCWS13 workshop E. Kako W.-D. Möller H. Hayano A. Yamamoto All members of SCRF WG November 14, 2013.
KCS and RDR 10 Hz Operation Chris Adolphsen BAW2, SLAC 1/20/2011.
BEAMLINE HOM ABSORBER O. Nezhevenko, S. Nagaitsev, N. Solyak, V. Yakovlev Fermi National Laboratory December 11, 2007 Wake Fest 07 - ILC wakefield workshop.
Jan Low Energy 10 Hz Operation in DRFS (Fukuda) (Fukuda) 1 Low Energy 10Hz Operation in DRFS S. Fukuda KEK.
SPL waveguide distribution system Components, configurations, potential problems D. Valuch, E. Ciapala, O. Brunner CERN AB/RF SPL collaboration meeting.
Summary of SCRF Meeting Fermilab, April 21-25, 2008 April 25, 2008 General Summary and Further Plan: 4/21: Cavity: Gradient R&D, performance, diagnostics.
Detail plan of S1-Global H. Hayano (KEK),
Managed by UT-Battelle for the Department of Energy Vector Control Algorithm for Efficient Fan-out RF Power Distribution Yoon W. Kang SNS/ORNL Fifth CW.
Aug 23, 2006 Low Power HLRF System and Impact on Distributed RF System Shigeki Fukuda and Task Force Team of DRFS in KEK KEK.
Hayama ILC Lecture, , Shuichi Noguchi 1 Part III ILC BCD Cavity  Maximum Use of Potential Performance  Maximum Use of each Cavity Performance.
Waveguide Heat Loads Christopher Nantista SLAC Main Linac – KOM Fermilab September 28, 2007 W.K.H. Panofsky
Christopher Nantista SLAC Project X Workshop November 12, 2007 Fermilab.
HLRF: KCS option Christopher Nantista SLAC ILC ML&SCRF Baseline Technical Review KEK, Tsukuba, JAPAN January 19, …… …… …… … ….
ILC Power and Cooling VM Workshop
ILC High Power Distribution
Preparation for DESY Meeting
DRFS in SB2009 KEK S. Fukuda Concept of DRFS System Description
Klystron Cluster System (KCS)
dependence on QL can not longer be seen
A frequency choice for the SPL machine: Impact on hardware
Chris Adolphsen Sergei Nagaitsev
12 GHz High Power RF components requirements for CEA activities
Update of CLIC accelerating structure design
Cost Optimization Models for SRF Linacs
Summary of MLI Studies Chris Adolphsen
LCLS Commissioning Parameters
Injector: What is needed to improve the beam quality?
LCLS Commissioning Parameters
ERL Director’s Review Main Linac
Presentation transcript:

Summary of Relative RF Distribution Costs with Gradient Considerations (Work in Progress) Chris Adolphsen SLAC

Cost of Power and Qext Control RDR Linac Cost with Labor –3.89 B$ + 59% of 14 khr*140 k$/hr = 5.0 B$ –So 1% gradient = 50 M$ RDR TTF3 Coupler Cost Including Processing –RDR (DESY) Estimate = 11.5 k$ (9.5 kEuro with 1.2 E/$) –FNAL Estimate = = 16.2 k$ (13.4 kEuro) –LAL ILC goal = 28 k$ (14 kEuro for parts * 1.2 /.6) Cost of Qext Control –Number of Main Linac Couplers = –Cost savings with fixed Qext = 11% (Serge’s worst case) –So Qext cost with RDR Estimate = 18 M$ Cost of Power Control –T + WG = 10.3 k$ * / 3.1 (RDR discount) = 48 M$

Configuration With Cavity Pair Power Tailoring Requires circulators, 7 different hybrids, and 7 different waveguide connections. Requires circulators, 8 3dB hybrids, and 8 waveguide T’s. Requires 8 3dB hybrids, 4 waveguide T’s, and pairing of like cavities. Configuration With Fixed Cavity Power (BCD) Configuration With Individual Cavity Power Tailoring

Fixed vs. Variable Coupling Cost Hybrid $6,650$6,650 Magic Tee $5000?$5,000? H U-bends2  $2,000? $4,000 H-plane bend$1,236$1,236 Spacers4  $400?$1,600 Spools2  $500?$1,000 Gaskets14  $78.95$1,105 $20,591 Hybrid $6,650$6,650 H-plane bend2  $1,236$2,472 Spool$700?$700 Gaskets6  $78.95$474 $10,296 Cost of Variability: ~$10,295/cavity ? FIXED: VARIABLE: NOTE: Hybrids and bends (to accommodate various hybrid lengths and output phases) of various designs above, but all identical below, which can affect prices.

Cost Comparisons for Single Feed Systems (Assumes MV/m Flat Gradient Distribution) AdjustabilityCost of P+QLoss of Grad Cost Of Grad Net (M$) P + Q P, No Q Narrow G* 481.5%75123 No P, Q Baseline 182.7% P+Q but Q common % * Assumes Gaussian (4.5% sigma) gradient spread (no sorting), full wall plug power if run at lower currents and increased cooling water overhead.

Check of J. Branlard et al estimate of a 3.2% gradient loss with P adjustment but common Q: Karl Bane computes 2.8 +/-.03%

Baseline RF Distribution System Alternative RF Distribution System Fixed Tap-offs Isolators Variable Tap-offs (VTOs) 3 dB Hybrids

Case Not Sorted [%] Sorted [%] Individual P’s and Q’s (VTO and Circ) 1 P, individual Q’s 2.7   0.4 (Circ but no VTO) P’s in pairs, Q’s in pairs 7.2   0.2 (VTO but no Circ) 1 P, Q’s in pairs 8.8   0.5 (no VTO, no Circ) G i set to lowest G lim 19.8   2.0 (no VTO, no Circ) Optimized 1  G  /  G lim  ; results for 100 seeds Consider uniform distribution of gradient limits (G lim ) i from 22 to 34 MV/m in a 26 cavity rf unit - adjust cavity Q’s and/not cavity power (P) to maximize overall gradient while keeping gradient uniform (< 1e-3 rms) during bunch train Gradient Optimization with and Without VTOs and Circulators

Cost Estimates for Various 8- Cavity Distribution System in ‘Small’ Quantities Use Results to Gauge Whether Eliminating Isolators Is Cost Effective

Hybrids (pressurizable)8  $6,650$53,200 Isolators8  $6,500$52,000 Pressure windows 8  $5, $45,309 Support frame4  $7,500$30,000 Phase shifters8  $3,300$26,400 H-plane bends15  $1,236.48$18,547 Loads (1 MW)8  $2,000$16,000 Directional couplers10  $1,150 ($1,205MEGA)$11,500 Gaskets110  $78.95$8,685 E-plane U bends (atm.)8  $800?$6,400 Flex guide (atm.) 8  $588$4,704 Load (5 MW)1  $4,000$4,000 Spools (press.)7  $371$2,597 Pressure section+inlet flange1  $1,000$1,000 Nuts&bolts4  $250 $1,000 Flex guide(press.)1  $756.75$757 TOTAL$282,100 Parts Cost for Baseline RF Distribution No Power Adjustability, includes Phase Shifters Instead of 3 Stub Tuners

Parts Cost For ACD System with Cavities Fed in Pairs Includes Power Adjustability (VTOs) and Phase Shifters but no Isolators Same as First Version for FNAL expect without Isolators VTO’s4  $16,900$67,600 Support frame4  $7,500$30,000 Hybrids 4  $6,650 ($4,600MEGA)$26,600 Phase shifters8  $3,300$26,400 E-plane bends (cust.)26  $900$23,400 Pressure windows 4  $5, $22,654 Loads (1 MW)8  $2,000$16,000 Directional couplers10  $1,150 ($1,205MEGA)$11,500 Gaskets112  $78.95$8,842 E-plane bends (6”  6”)6  $841.12$5,047 H-plane bends4  $1,236.48$4,946 Flex guide (atm.) 8  $588$4,704 Load (5 MW)1  $4,000$4,000 Flex guide(press.)4  $756.75$3,027 ~8” spools8  $371$2,968 Pressure section+inlet flange1  $1,000$1,000 Nuts&bolts4  $250 $1,000 TOTAL$259,688

VTO’s4  $16,900$67,600 Hybrids (atm.) 4  $6,000?$24,000 Support frame4  $7,500$30,000 Phase Spacers16  $400?$6,400 E-plane bends (cust.)6  $900$5,400 Loads (1 MW)8  $2,000$16,000 Directional couplers10  $1,150 ($1,205MEGA)$11,500 Pressure windows 4  $2,500 (SLAC block)$10,000 Gaskets112  $78.95$8,842 E-plane bends (6”  6”)6  $841.12$5,047 H-plane bends4  $1,236.48$4,946 H-plane bends (atm., cust.)8  $747$5,976 E-plane U bends (atm.)8  $800?$6,400 Flex guide (atm.) 8  $588$4,704 Load (5 MW)1  $4,000$4,000 Flex guide(press.)2  $756.75$1,514 ~8” spools (atm.)8  $250?$2,000 Pressure section+inlet flange1  $1,000$1,000 Nuts&bolts4  $250 $1,000 TOTAL$216,329 Economy ACD System with Cavities Fed in Pairs Eliminate Phase Shifters, Use Simpler Parts

Hybrid $6,650$6,650 Magic Tee $5000?$5,000? H U-bends3  $2,000? $6,000 H-plane bend$1,236$1,236 Spacers4  $400?$1,600 Spool$500?$500 Gaskets13  $78.95$1,026 $22,012 VTO $16,900$16,900 E-plane bends4  $900$3,600 Gaskets7  $78.95$553 $21,053 VTO or Tee/Spacers/Hybrid May be a wash! Post-installation changes easier, faster and more accurate (once replacement spacers are prepared)

Hybrids (pressurizable)8  $6,650$53,200 Magic Tee’s8  $5,000?$40,000 H-plane U bends (press.)16  $2,000?$32,000 Coupling Spacers32  $400?$12,800 Spools (press.)24  $400?$9,600 H-plane bends7  $1,236.48$8,655 Isolators8  $6,500$52,000 Support frame4  $7,500$30,000 Phase Spacers16  $400?$6,400 Loads (1 MW)8  $2,000$16,000 Directional couplers10  $1,150 ($1,205MEGA)$11,500 Pressure windows 8  $2,500 (SLAC block)$20,000 Gaskets153  $78.95$12,709 E-plane U bends (atm.)8  $800?$6,400 Flex guide (atm.) 8  $588$4,704 Load (5 MW)1  $4,000$4,000 Flex guide(press.)1  $756.75$757 Pressure section+inlet flange1  $1,000$1,000 Nuts&bolts4  $250 $1,000 TOTAL$322,095 Parts Cost for RF Distribution w/ Variable Coupling to Each Cavity – Economy Version

Summary of RF Dist Costs (For RDR, 560 rf units at 296 k$ per system = 166 M$) Configuration 8-Cavity Cost (k$) (small quantities) Cost (M$) Differences Scaled to ILC Cost (M$) due to Gradient Loss* Net Cost Change (M$) Baseline ACD Two Feed ACD Two Feed Economy Version ACD One Feed Economy Version * For ACD Two Feed case, assume 0.8% grad loss if 26 cavities sorted in pairs by grad