Erwin Siesling BE-OP-ISO

87th ISCC meeting 20 Feb 2020, CERN

Update on the Low Energy part, REX and HIE ISOLDE

Plans for 2020 Beam Commissioning & Machine Studies

Outline

• Status report- Low Energy part

- REX / HIE ISOLDE

• Early start-up schedule and planning

• Hardware, Beam commissioning & Machine

studies- Low Energy part

- REX/HIE ISOLDE

• ISOLDE 3D integration

• Conclusions

Status ISOLDE Low Energy

3

HT modulators:

- High Precision 60kV power

supplies, Target Modulators

& HT fast recovery systems

installed on HT 1 & 2

- FESA3 compliant control

system deployed

- On site test load and HT

calibration tools installed

- Ready for commissioning at

start-up in 2020 and 2021

with protons

GLM & GHM area:

- Refurbishment to comply to

modern legislation for the

manipulation of open

sources

- Ready for RIBs in 2021

- Addressed in Karl’s talk

Cooling & Ventilation:

- Maintenance on the

different cooling water and

ventilation systems

finishing: All cooling water

back end February 2020

New fast Tape-Station:

- Installed in the CAO

beamline

- FESA classes done

- Application to be (re)written

- Operational at start-up in

2020

Beam Instrumentation

consolidation and upgrades

Low E beamlines:

- New scanners and FCs at

all Low E beamlines as well

as new separator area

scanners and spares

- Installation ongoing, Low E

beamlines done, Separator

zone to be done.

Operational at start-up in

2020

All Low E LS2 tasks are on track

Bottleneck for beam commissioning the readiness of FE10 and

vacuum maintenance on the primary oil pumps (May, possibly April)

Vacuum maintenance:

- All TPs done. Leak test to

be performed

- Separators and Target

area oil pumps: oil change

and consolidation in May

(LS2 availability) (possibly

April)

Beam Instrumentation consolidation and upgrades

William Andreazza, Michel Duraffourg, Paulo Martins. BE-BI team

Status REX & HIE ISOLDE

SEC

ISS

Miniball

5

Cooling & Ventilation:

- HIE ISOLDE CV building

199 modification finished.

Beneficial for both the 199

cryo plant as well as the

508 user labs

- 508 CV/airco upgrade

finished and labs are up to

user specs

- All cooling water back end

February 2020

All REX / HIE ISOLDE LS2 tasks are on track

Minor delay for cryo end-of-cooldown date (1wk)

REX TRAP & EBIS:

- TRAP maintenance and

electrodes repair done. To

be tested 2020

- TRAP ion source working

- TRAP RF hardware

replaced – to be tested

- EBIS new electron gun

under fabrication. To be

ready for tests 2020

REX NC LINAC:

- REX RF consolidation and

maintenance done. First RF

tests carried out. Ready for

2020 re-commissioning

- 7 Gap water hoses to be

replaced

- IHS water hoses to be

replaced (still in LS2?)

- BI: 3 additional HIE ISOLDE

type Diagnostic Boxes

assembled and vacuum

tested. Installation mid-

March, operational for 2020

- REX vacuum maintenance

finished. Ready for 2020 re-

commissioning

Three new diagnostic

boxes and steerers

New EBIS electron gun

CM4 repaired

HIE SC LINAC:

- HIE ISOLDE Cryo plant

maintenance done. Ready

for re-commissioning and

cooldown in 2020 (18th May)

- CM4 re-installed

- Intertank sectors reinstalled

and vacuum connections

done

- CM4 infrastructure and cryo

connections ongoing

- Re-commissioning CM1-4

with stable beam from EBIS

foreseen as of July 2020

Miniball

Additional silicon detectors:

- Installation March 2020

6

Courtesy Candy Capelli EN-MME, Nicolas Chritin EN-MME,

Simon Mataguez BE-OP, William Andreazza BE-BI, Jose

Ferreira Somoza TE-VSC

REX 3 new diagnostic boxes + additional steererDboxes assembled and vacuum tested, installation mid-March. Infrastructure and supports are adapted.

Transport Cryo Module 4 from SM18 back to ISOLDE:

21st January 2020

HIE ISOLDE installation work: CM4, intertank sectors

& infrastructure

Tuner plate stepping motors

RF patch panels

XLN6 intertank

BCAM alignment system

Many thanks to all the groups

involved for keeping the

schedule with the heavy LS2

load

Points of attention:

Cryo:

- An issue was found with the

Cryostat He release safety

valve which needs repair.

Installation later in parallel

with continuing activities

- All other CM Cryostat He

release safety valves will be

inspected

To do:

- Current leads and cooling

solenoids

- DC and BI connections

Intertank sectors XLN5 & 6

Cryostat He release safety valve

XLN5 intertank

CM4 vacuum infrastructure

CM4 instrumentation cabling

Outline

• Status report- Low Energy part

- REX / HIE ISOLDE

• Early start-up schedule and planning

• Hardware, Beam commissioning & Machine

studies- Low Energy part

- REX/HIE ISOLDE

• ISOLDE 3D integration

• Conclusions

Early start-up in 2020: As requested LS2 Schedule 2.4:

Early start-up 2020:

Approved by the CERN Research Board, LS2 Committee and IEFC

Low E Beam commissioning and development tests with stable beam as of end-Aug 2020

For Hardware commissioning we hope to have beam from FE10 (GPS) as of April (depending

on FE readiness and vacuum maintenance (primary pumps) (scheduled May, possibly April)

HIE-ISOLDE Beam commissioning and development tests with stable beam as of July 2020

Physics 2021:

Low E Physics start end April 2021

HIE-ISOLDE Physics start mid-May 2021

Gain:

~ 4 months HIE ISOLDE Physics, ~1 month Low Energy Physics

Better performing machine, better understanding of the machine

parameters resulting in higher quality beams and shorter set-up times

ISOLDE low energy

Physics start

HIE-ISOLDE

Physics start

Necessary main CERN electrical interventions, manoeuvres and safety tests planned in the first half of 2020

would cause serious perturbation for the HIE ISOLDE cryo plant

Mitigation:

AUG (Arret d’Urgence) tests weekend 23/24th May have been moved forward to weekend 16/17th May to

minimize the impact on HIE ISOLDE Cryo

Within the HIE ISOLDE Cryo cooldown process the critical period of sending cold gas and He into the

CMs will be postponed to 18th May to avoid any critical situation

Effect on the overall HIE ISOLDE planning will be a delay of 1 wk for the end-of-cooldown date (from 29th

May to 8th June). The delay will be absorbed in the planning since parts of the 2wks RF tests at cold take

place during the cooldown process

Back-up network tests set for the 26th May will be moved to Monday 25th May to accommodate LINAC4

commissioning

Planning issues:

+1 wk to 08/06/20

EN-EL interventions planning HIE ISOLDE installation and recommissioning planning

Outline

• Status report- Low Energy part

- REX / HIE ISOLDE

• Early start-up schedule and planning

• Hardware, Beam commissioning &

Machine studies- Low Energy part

- REX/HIE ISOLDE

• ISOLDE 3D integration

• Conclusions

Low Energy hardware & beam commissioning

13

Hardware commissioning (ISOLDE machine supervisor on duty as of March (weekdays, working hours):

Apart from the usual machine checkout and hardware tests:

New Front-Ends hardware commissioning

Functional verification of all HT electrostatic power supplies (CCV/AQN), the connections to the different

elements and the capacitance of the plates inside via the HT connector

Verification voltage ripple on the electrostatic power supplies

Test of all applications for operations

New diagnostic boxes: all new FCs and scanners hardware tests (applications, controls and movement)

New beam-gates hardware tests

New Fast Tapestation tests (with simulated proton timing)

Beam commissioning:

Beam characteristics from the new Front-Ends

Beam onto the new beam instrumentation: all new FCs and

scanners tests with stable beam (signals and applications)

New beam-gates tests with stable beam

Work on beam optics model: first for GPS separator and central

beamline followed by HRS separator and ISCOOL

Test beam to RCX line in preparation for MIRACLS (emittance,

transmission and optics) (ex-NICOLE line)

Bottleneck to avoid parallel Low E

and REX/HIE beam commissioning:

Start beam commissioning asap

Readiness of FE10 and vacuum

maintenance on the primary

pumps (separator areas and

target area. Foreseen May,

possibly April)

New Front-Ends

New beam

instrumentation

New beam-

gates controls

Beam Commissioning 2020:

J.A. Rodriguez, BE-OP-ISO

SEC / OTPCISS

Miniball Experimental stations:

Stable beams (wks. 37, 38, 45, 46)

Three new diagnostic

boxes and steerers

New electron gun

CM4

repaired

Additional

silicon detectors

New software or major upgrades:

Beam instrumentation applications suite (wks. 28-30, 34)

New slow extraction application (wk. 30)

Fast Beam Investigation tool (wks. 31, 32)

Beam optimizer for injection into experiments (wks. 37, 38)

Energy / energy spread application (wk. 31)

Automatic SRF phasing (wk. 33)

New or heavily refurbished hardware:

New steerers and diagnostic boxes: FCs, slits, attenuators, collimators and silicon detectors (wks. 28, 29, 30)

New electron gun in the REX-EBIS charge breeder (contaminant characterization: wks. 29, 31)

REX RF amplifiers (wks. 30-32)

Phasing of refurbished cryomodule 4 (CM4) (wk. 33)

Two additional silicon detectors (wk. 34)

Machine Studies 2020:

New REX

separator optics

J.A. Rodriguez, BE-OP-ISO

SEC / OTPCISS

Miniball

Stability REX RF

for low A/q beams

Bunch length stretching

Energy spread minimization

Beam size minimization

Preparation for potential future upgrades:

Alternative REX separator optics with beam waist

before RFQ (wk. 28)

Development of train extraction from the REX-EBIS

charge breeder (wks. 28, 38)

Bunch length stretching at secondary target (wk. 43)

Beam improvements requested by users of the facility:

Charge breeder slow extraction to 1.8 ms (wk. 30)

Feasibility study for low A/q beams. Stability of REX RF (wk. 36)

Energy spread minimization at secondary target (wk. 44)

Slit-based emittance reduction with limited beam losses (wk. 44)

Slow extraction (1.8 ms)

Train extraction

Machine development:

Energy and energy spread measurement in three HEBT lines (wk. 34)

Transverse and longitudinal phase space characterization and validation of optics models (wks. 35, 43)

Machine A/q scalability studies (wk. 41)

Development of beam-based energy gain measurement (wk. 42)

Outline

• Status report- Low Energy part

- REX / HIE ISOLDE

• Early start-up schedule and planning

• Hardware, Beam commissioning & Machine

studies- Low Energy part

- REX/HIE ISOLDE

• ISOLDE 3D integration

• Conclusions

Full ISOLDE 3D integration:

The Low Energy, REX/HIE ISOLDE post-accelerator, Target Area and all infrastructure

have now been merged into one 3D CATIA model.

The ISOLDE 3D CATIA model has been converted to 3DXML and is available in EDMS EDMS CERN-0000000088 to CERN-0000205967

EDMS 2324292 2020/02/04 ISOLDE INTEGRATION BEAM MACHINE & EXPERIMENTS

EDMS 2324319 2020/01/31 ST1234846_01 ISOLDE INTEGRATION BLDS 170 197 508

(Work by: Vincent Barozier EN-MME, Made available by: Simon Mataguez BE-OP, Miguel Lozano Benito BE-OP (CATIA course)

Visualisation and basic viewing:

You will need to load 3D XML:

https://www.3ds.com/fr/produits-et-

services/3d-xml/telechargements/

Visualisation and measurements:

You will need an access and

SmarTeam account (request by

Ticket) and load from CMF SpinFire

("read only")

18

Conclusions: All Low Energy and REX / HIE ISOLDE LS2 tasks are on track

Highlights since last ISCC:

New scanners and FC units have been installed in all Low E beamlines

Separator zones will follow. Operational for 2020. A new Semgrid target will be

built, ready for the 2021 proton beam

REX 3 new Diagnostic boxes have been assembled and vacuum tested.

Supports have been adapted. Ready for installation mid-March

HIE ISOLDE Cryo Module 4 is back in position after repair and tests in SM18

(Walter Venturini & BE-RF team). Reinstallation and connection of infrastructure

on schedule. Point of attention: Crystat He release safety valve(s): Under repair.

No effect on schedule to be expected.

Early start-up 2020 approved by CERN Research Board, IEFC and LS2C

Aiming for REX/HIE ISOLDE HW tests as of April, cooldown May 2020 followed

by Beam Commissioning and Test & Development run as of July 2020.

For the Low E part hoping for early HW tests as of April and Beam

Commissioning as soon as FE10 comes online and vacuum maintenance has

finished (due to LS2 load this is scheduled for May but possibly April to finish)

Well defined Hardware tests-, Beam Commissioning- and Machine Studies plan

by BE-OP