Replacement of Obsolete/Old Hardware

L. Ducimetière

SPS Consolidation Review

Luc Sermeus, Mike Barnes, Viliam Senaj, Thomas Kramer, Luis Feliciano, Vasco Namora, Remy Noulibos, Patrick Faure, Francesco Castronuovo

Talk Overview

• Refurbish oil systems• Upgrade MKP switches (thyratron type)• New MKDV generators (and controls)• Eradicate horn pulser ignitron switches

Refurbish oil systems• Concerns CPS systems, with 2 objectives:

• Improve safety by replacing mineral oil (DIALA) by ESTER oil• Improve system reliability by renovating old system

• Status:• Done in MTE, PSB EK/TK, AD horn, LEIR, ISOLDE• On-going in CT, AD / ELENA, Lab.867• Still to be done in PS TIK and FAK

kCHF kCHF kCHF kCHF kCHF kCHF kCHF

FTE FTE FTE FTE FTE FTE FTE

WU status BC Activity 2014 2015 2016 2017 2018 2019 2020

Active 65218 Refurbish oil systems 80 88 90 90 90 90

0.25 1.25 0.92 0.75 0.75 1.10

To be implemented over several years with constant budget

Upgrade MKP switches (thyratron type)

• CX1171B under-dimensioned for the pulse idt• CX2503 « newly » developped for MKI features

higher idt, and very large gas reservoir. • CX2503 also used in LHC-MKI and SPS-MKE.

• Already started on Dump switches (1 in operation + 1 spare, 9 remaining)• 8 Main switches to be treated during the

100 ns LIU project (full switch to be redesigned for 2 thyratrons)

kCHF kCHF kCHF kCHF kCHF kCHF kCHF

FTE FTE FTE FTE FTE FTE FTE

WU status BC Activity 2014 2015 2016 2017 2018 2019 2020

Active 65712 Upgrade MKP switches (thyratron type) 30 30 30 30 30 30 30

0.30 0.20 0.18 0.55 0.60 0.45

• Consists in replacing old type CX1171B by new CX2503 :

New MKDV generators and controls• Redesigned 2 W proto PFN ready for

switch test in Lab.867• “Quad-stack” GTO switch design

well advanced start to build a proto in 2015

• Regular strategy meetings EC-FPS on-going to validate key elements and functionalities

• To be integrated in SPS-LIU ? • Split EC / FPS budget

kCHF kCHF kCHF kCHF kCHF kCHF kCHFFTE FTE FTE FTE FTE FTE FTE

WU status BC Activity 2014 2015 2016 2017 2018 2019 2020

Active 65711 New MKDV generators and controls 30 160 160 245 199 15

0.65 0.90 0.75 1.05 1.10 0.95

x 40

Eradicate horn pulser ignitron switches

• Ignitron switches are a safety issue(ref. BA3 fire in 1997 : 10MCHF cleaning, 10 weeks lost for operation)

• Technically easy to replace +/- copy of MKDH GTO switch

• Need full cleaning of cubicles Erosion evidence found in test cubicle

• Need new trigger system ?

kCHF kCHF kCHF kCHF kCHF kCHF kCHF

FTE FTE FTE FTE FTE FTE FTE

WU status BC Activity 2014 2015 2016 2017 2018 2019 2020

Approved 99215 [AD] Horn ignitron mercury switches phase-out 15 100 100 30

0.60 1.45 0.00