HB2023 - List of Keywords (diagnostics)

Paper	Title	Other Keywords	Page
WEC1C2	Challenges of Target and Irradiation Diagnostics of the IFMIF-DONES Facility	target, radiation, neutron, monitoring	210
	C. Torregrosa, J. Maestre, A. Roldán, J. Valenzuela, I. Álvarez Castro UGR, Granada, Spain F. Arbeiter, Y.F. Qiu KIT, Eggenstein-Leopoldshafen, Germany S. Becerril-Jarque, A. Ibarra, I. Podadera Consorcio IFMIF-DONES España, Granada, Spain B. Brenneis Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany L. Buligins IPUL, Salaspils, Latvia J. Castellanos Universidad de Castilla-La Mancha, Ciudad Real, Spain N. Chauvin CEA-IRFU, Gif-sur-Yvette, France S. Fiore CERN, GENEVA, Switzerland D. Jimenez-Rey, F. Mota, C. Oliver, D. Regidor, C. de la Morena CIEMAT, Madrid, Spain J. Martínez, P. Matia-Hernando, T. Siegel ASE Optics, El Prat De Llobregat, Spain F.S. Nitti ENEA Brasimone, Centro Ricerche Brasimone, Camugnano, BO, Italy T. Tadic RBI, Zagreb, Croatia U. Wiacek IFJ-PAN, Kraków, Poland
	Funding: This work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme Grant Agreement No 101052200 EUROfusion IFMIF-DONES will be a first-class scientific infrastructure consisting of an accelerator-driven neutron source delivering 1e17 n/s with a broad peak at 14 MeV. Such neutron flux will be created by impinging a continuous wave 125 mA, 40 MeV, 5 MW deuteron beam onto a liquid Li jet target, circulating at 15 m/s. Material specimens subjected to neutron irradiation will be placed a few millimeters downstream. Some of the most challenging technological aspects of the facility are the Diagnostics to monitor the Li jet, beam parameters on target, and characterization of the neutron irradiation field, with transversal implications in the scientific exploitation, machine protection and safety. Multiple solutions are foreseen, considering among others, Li jet thickness measurement methods based on optical metrology and millimeter-wave radar techniques, Li electromagnetic flowmeters, beam footprint measurements based on residual gas excitation, online neutron detectors such as SPNDs and micro-fission chambers, as well as offline neutron fluence measurements by activation foils or spheres. This contribution provides an overview of these aspects and the associated R&D activities.
	Slides WEC1C2 [4.676 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-HB2023-WEC1C2
About •	Received ※ 11 October 2023 — Accepted ※ 12 October 2023 — Issued ※ 14 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THC2I2	Extraction of LHC Beam Parameters from Schottky Signals	synchrotron, betatron, simulation, octupole	382
	K. Łasocha, D. Alves, C. Lannoy, N. Mounet CERN, Meyrin, Switzerland C. Lannoy, T. Pieloni EPFL, Lausanne, Switzerland
	Analysis of Schottky signals provides rich insights into the dynamics of a hadron beam, with well-established methods of deriving the betatron tune and machine chromaticity. In this contribution, we will report on recent developments in the analysis and understanding of the signals measured at the Large Hadron Collider during proton and Pb⁸²⁺ fills. A fitting-based technique, where the measured spectra are iteratively compared with theoretical predictions, will be presented and compared with the previous methods. As a step beyond the classical theory of Schottky spectra, certain signal modifications due to the activity of the LHC machine systems will be discussed from the perspective of the applicability of the modified signal to the beam diagnostics.
	Slides THC2I2 [9.053 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-HB2023-THC2I2
About •	Received ※ 04 October 2023 — Revised ※ 08 October 2023 — Accepted ※ 09 October 2023 — Issued ※ 12 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THAFP04	Investigation of Tail-dominated Instability in the Fermilab Recycler Ring	space-charge, operation, emittance, coupling	403
	O. Mohsen, R. Ainsworth, A.V. Burov Fermilab, Batavia, Illinois, USA
	In our recent operational run, a single bunch, tail-dominated instability was observed in the Fermilab Recycler ring. This instability exclusively occurs in the vertical plane when the chromaticity is close to zero. In this study, we conduct a detailed analysis of this instability under different operational parameters. We investigate the impact of space charge on the head-tail motion and propose potential interpretations of the underlying mechanism of the instability. Moreover, we explore methods to mitigate this instability in the future.
	Slides THAFP04 [1.429 MB]
	Poster THAFP04 [0.892 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-HB2023-THAFP04
About •	Received ※ 25 September 2023 — Revised ※ 09 October 2023 — Accepted ※ 11 October 2023 — Issued ※ 29 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THAFP07	Preliminary Results on Transverse Phase Space Tomography at KOMAC	linac, proton, emittance, quadrupole	415
	S. Lee, J.J. Dang, D.-H. Kim, H.S. Kim, H.-J. Kwon, S.P. Yun KOMAC, KAERI, Gyeongju, Republic of Korea
	Funding: This work has been supported through KOMAC operation fund of KAERI by Ministry of Science and ICT, the Korean government (KAERI ID no. : 524320-23) Beam loss is a critical issue to be avoid in high power proton accelerators due to machine protection from radiation. Nonlinear processes add higher order moments and cause halo and tail structures to a beam, resulting in beam losses. Hence it becomes more important to characterize beams for high power accelerators. Conventional beam diagnostic methods can measure only approximate elliptical features of a beam and are not suitable for high power beams. Tomography method reconstructs a multidimensional distribution from its lower-dimensional projections. We used this method to reconstruct the 4D transverse (x, x’, y, y’) phase space distribution of the beam from the accelerator at KOMAC (Korea Multipurpose Accelerator Complex). RFQ BTS (Radio Frequency Quadrupole Beam Test System) was constructed and commissioned in 2022. In the BTS, we performed tomography experiements and obtained preliminary results on 4D transverse phase space beam distribution. We also have applied the tomography measurement techniques to the 100 MeV proton linac. In this paper, we describe the tomography measurement system and present the preliminary results obtained from the BTS and the 100 MeV proton linac.
	Slides THAFP07 [2.018 MB]
	Poster THAFP07 [1.035 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-HB2023-THAFP07
About •	Received ※ 01 October 2023 — Revised ※ 05 October 2023 — Accepted ※ 11 October 2023 — Issued ※ 13 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THBP04	Machine Protection System for the Proposed TATTOOS Beamline at HIPA	target, operation, proton, cyclotron	443
	J. Snuverink, P. Bucher, R. Eichler, M. Hartmann, D.C. Kiselev, D. Reggiani, E. Zimoch PSI, Villigen PSI, Switzerland
	IMPACT (Isotope and Muon Production with Advanced Cyclotron and Target Technology) is a proposed upgrade project for the High Intensity Proton Accelerator (HIPA) at the Paul Scherrer Institute (PSI). As part of IMPACT, a new radioisotope target station, TATTOOS (Targeted Alpha Tumour Therapy and Other Oncological Solutions) is planned. The TATTOOS beamline and target will be located near the UCN (Ultra Cold Neutron source) target area, branching off from the main UCN beamline. In particular, the 590 MeV proton beamline is designed to operate at a beam intensity of 100 ¿A (60 kW), requiring a continuous splitting of the main beam by an electrostatic splitter. The philosophy of the machine protection system (MPS) for the TATTOOS beamline will not differ significantly from the one already implemented for HIPA. However, it is particularly important for TATTOOS to avoid damage to the target due to irregular beam conditions. We will show the diagnostic systems involved and how the requirements of the machine protection system can be met. Emergency scenarios and protective measures are also discussed.
	Poster THBP04 [3.228 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-HB2023-THBP04
About •	Received ※ 01 October 2023 — Revised ※ 03 October 2023 — Accepted ※ 10 October 2023 — Issued ※ 21 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THBP47	Studies on the Effect of Beam-Coupling Impedance on Schottky Spectra of Bunched Beams	impedance, simulation, synchrotron, coupling	595
	C. Lannoy, D. Alves, K. Łasocha, N. Mounet CERN, Meyrin, Switzerland C. Lannoy, T. Pieloni EPFL, Lausanne, Switzerland
	Schottky monitors can be used for non-invasive beam diagnostics to estimate various bunch characteristics, such as tune, chromaticity, bunch profile or synchrotron frequency distribution. However, collective effects, in particular beam-coupling impedance, can significantly affect Schottky spectra when large bunch charges are involved. In such conditions, the available interpretation methods are difficult to apply directly to the measured spectra, thus preventing the extraction of beam and machine parameters, which is possible for lower bunch charges. To study the impact of impedance on such spectra, we perform here time-domain, macro-particle simulations and apply a semi-analytical method to compute the Schottky signal for various machine and beam conditions, including those corresponding to typical physics operation at the Large Hadron Collider. This study provides preliminary interpretations of the impact of beam-coupling impedance on Schottky spectra by incorporating longitudinal and transverse resonator-like impedance models into the simulations.
	Poster THBP47 [1.133 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-HB2023-THBP47
About •	Received ※ 01 October 2023 — Revised ※ 08 October 2023 — Accepted ※ 09 October 2023 — Issued ※ 21 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

FRC1I2	High Beam Current Operation with Beam Diagnostics at LIPAc	operation, emittance, neutron, beam-diagnostic	649
	S. Kwon, T. Akagi, A. De Franco, K. Hirosawa, K. Kondo, K. Masuda, M. Ohta QST Rokkasho, Aomori, Japan F. Bénédetti, Y. Carin, F. Cismondi, D. Gex IFMIF/EVEDA, Rokkasho, Japan B. Bolzon, N. Chauvin CEA-IRFU, Gif-sur-Yvette, France D. Jimenez-Rey, I. Podadera, A. Rodríguez Páramo, V. Villamayor CIEMAT, Madrid, Spain L. Maindive UGR, Granada, Spain J. Marroncle CEA-DRF-IRFU, France J.C. Morales Vega, I. Podadera Consorcio IFMIF-DONES España, Granada, Spain M. Poggi INFN/LNL, Legnaro (PD), Italy
	The Linear IFMIF Prototype Accelerator (LIPAc) is under commissioning in Rokkasho Fusion Institute in Japan and aims to accelerate 125 mA D⁺ at 9 MeV in CW mode for validating the IFMIF accelerator design. To insure a fine characterization and tuning of the machine many beam diagnostics are installed such as CTs, profile/position/loss/bunch length monitors spanning from Injector to the beam dump (BD). The beam operations in 1.0 ms pulsed D⁺ at 5 MeV was successfully completed with a low power BD (Phase B) in 2019. Despite the challenges posed by the pandemic, the crucial transition to a new linac configuration was also finalized to enable operation in 1.0 ms to CW D⁺ at 5 MeV with the high-power BD (Phase B+). Thanks to the efforts of the entire team, the 1st beam operation of Phase B+ was carried out in 2021. We present the experiences and challenges encountered during the beam operations, particularly the findings from the interceptive devices to measure the beam profile and emittance using tungsten wires rackets, SEMGrid. We also discuss the quick results on other beam diagnostics from the beam operation of Phase B+ toward HDC, which are currently conducting in this Summer.
	Slides FRC1I2 [9.323 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-HB2023-FRC1I2
About •	Received ※ 02 October 2023 — Revised ※ 06 October 2023 — Accepted ※ 10 October 2023 — Issued ※ 23 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

FRA2I4	Summary of the Commissioning and Operations and Performance Working Group for HB2023 Workshop	operation, MMI, linac, proton	675
	N. Milas ESS, Lund, Sweden M. Bai SLAC, Menlo Park, California, USA S. Wang IHEP, Beijing, People’s Republic of China
	Summary for WGD.
	Slides FRA2I4 [11.582 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-HB2023-FRA2I4
About •	Received ※ 06 November 2023 — Revised ※ 09 November 2023 — Accepted ※ 17 November 2023 — Issued ※ 17 November 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

WEC1C2

Challenges of Target and Irradiation Diagnostics of the IFMIF-DONES Facility

target, radiation, neutron, monitoring

210

C. Torregrosa, J. Maestre, A. Roldán, J. Valenzuela, I. Álvarez Castro
UGR, Granada, Spain
F. Arbeiter, Y.F. Qiu
KIT, Eggenstein-Leopoldshafen, Germany
S. Becerril-Jarque, A. Ibarra, I. Podadera
Consorcio IFMIF-DONES España, Granada, Spain
B. Brenneis
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
L. Buligins
IPUL, Salaspils, Latvia
J. Castellanos
Universidad de Castilla-La Mancha, Ciudad Real, Spain
N. Chauvin
CEA-IRFU, Gif-sur-Yvette, France
S. Fiore
CERN, GENEVA, Switzerland
D. Jimenez-Rey, F. Mota, C. Oliver, D. Regidor, C. de la Morena
CIEMAT, Madrid, Spain
J. Martínez, P. Matia-Hernando, T. Siegel
ASE Optics, El Prat De Llobregat, Spain
F.S. Nitti
ENEA Brasimone, Centro Ricerche Brasimone, Camugnano, BO, Italy
T. Tadic
RBI, Zagreb, Croatia
U. Wiacek
IFJ-PAN, Kraków, Poland

Funding: This work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme Grant Agreement No 101052200 EUROfusion
IFMIF-DONES will be a first-class scientific infrastructure consisting of an accelerator-driven neutron source delivering 1e17 n/s with a broad peak at 14 MeV. Such neutron flux will be created by impinging a continuous wave 125 mA, 40 MeV, 5 MW deuteron beam onto a liquid Li jet target, circulating at 15 m/s. Material specimens subjected to neutron irradiation will be placed a few millimeters downstream. Some of the most challenging technological aspects of the facility are the Diagnostics to monitor the Li jet, beam parameters on target, and characterization of the neutron irradiation field, with transversal implications in the scientific exploitation, machine protection and safety. Multiple solutions are foreseen, considering among others, Li jet thickness measurement methods based on optical metrology and millimeter-wave radar techniques, Li electromagnetic flowmeters, beam footprint measurements based on residual gas excitation, online neutron detectors such as SPNDs and micro-fission chambers, as well as offline neutron fluence measurements by activation foils or spheres. This contribution provides an overview of these aspects and the associated R&D activities.

Slides WEC1C2 [4.676 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-HB2023-WEC1C2

About •

Received ※ 11 October 2023 — Accepted ※ 12 October 2023 — Issued ※ 14 October 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THC2I2

Extraction of LHC Beam Parameters from Schottky Signals

synchrotron, betatron, simulation, octupole

382

K. Łasocha, D. Alves, C. Lannoy, N. Mounet
CERN, Meyrin, Switzerland
C. Lannoy, T. Pieloni
EPFL, Lausanne, Switzerland

Analysis of Schottky signals provides rich insights into the dynamics of a hadron beam, with well-established methods of deriving the betatron tune and machine chromaticity. In this contribution, we will report on recent developments in the analysis and understanding of the signals measured at the Large Hadron Collider during proton and Pb⁸²⁺ fills. A fitting-based technique, where the measured spectra are iteratively compared with theoretical predictions, will be presented and compared with the previous methods. As a step beyond the classical theory of Schottky spectra, certain signal modifications due to the activity of the LHC machine systems will be discussed from the perspective of the applicability of the modified signal to the beam diagnostics.

Slides THC2I2 [9.053 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-HB2023-THC2I2

About •

Received ※ 04 October 2023 — Revised ※ 08 October 2023 — Accepted ※ 09 October 2023 — Issued ※ 12 October 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THAFP04

Investigation of Tail-dominated Instability in the Fermilab Recycler Ring

space-charge, operation, emittance, coupling

403

O. Mohsen, R. Ainsworth, A.V. Burov
Fermilab, Batavia, Illinois, USA

In our recent operational run, a single bunch, tail-dominated instability was observed in the Fermilab Recycler ring. This instability exclusively occurs in the vertical plane when the chromaticity is close to zero. In this study, we conduct a detailed analysis of this instability under different operational parameters. We investigate the impact of space charge on the head-tail motion and propose potential interpretations of the underlying mechanism of the instability. Moreover, we explore methods to mitigate this instability in the future.

Slides THAFP04 [1.429 MB]

Poster THAFP04 [0.892 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-HB2023-THAFP04

About •

Received ※ 25 September 2023 — Revised ※ 09 October 2023 — Accepted ※ 11 October 2023 — Issued ※ 29 October 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THAFP07

Preliminary Results on Transverse Phase Space Tomography at KOMAC

linac, proton, emittance, quadrupole

415

S. Lee, J.J. Dang, D.-H. Kim, H.S. Kim, H.-J. Kwon, S.P. Yun
KOMAC, KAERI, Gyeongju, Republic of Korea

Funding: This work has been supported through KOMAC operation fund of KAERI by Ministry of Science and ICT, the Korean government (KAERI ID no. : 524320-23)
Beam loss is a critical issue to be avoid in high power proton accelerators due to machine protection from radiation. Nonlinear processes add higher order moments and cause halo and tail structures to a beam, resulting in beam losses. Hence it becomes more important to characterize beams for high power accelerators. Conventional beam diagnostic methods can measure only approximate elliptical features of a beam and are not suitable for high power beams. Tomography method reconstructs a multidimensional distribution from its lower-dimensional projections. We used this method to reconstruct the 4D transverse (x, x’, y, y’) phase space distribution of the beam from the accelerator at KOMAC (Korea Multipurpose Accelerator Complex). RFQ BTS (Radio Frequency Quadrupole Beam Test System) was constructed and commissioned in 2022. In the BTS, we performed tomography experiements and obtained preliminary results on 4D transverse phase space beam distribution. We also have applied the tomography measurement techniques to the 100 MeV proton linac. In this paper, we describe the tomography measurement system and present the preliminary results obtained from the BTS and the 100 MeV proton linac.

Slides THAFP07 [2.018 MB]

Poster THAFP07 [1.035 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-HB2023-THAFP07

About •

Received ※ 01 October 2023 — Revised ※ 05 October 2023 — Accepted ※ 11 October 2023 — Issued ※ 13 October 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THBP04

Machine Protection System for the Proposed TATTOOS Beamline at HIPA

target, operation, proton, cyclotron

443

J. Snuverink, P. Bucher, R. Eichler, M. Hartmann, D.C. Kiselev, D. Reggiani, E. Zimoch
PSI, Villigen PSI, Switzerland

IMPACT (Isotope and Muon Production with Advanced Cyclotron and Target Technology) is a proposed upgrade project for the High Intensity Proton Accelerator (HIPA) at the Paul Scherrer Institute (PSI). As part of IMPACT, a new radioisotope target station, TATTOOS (Targeted Alpha Tumour Therapy and Other Oncological Solutions) is planned. The TATTOOS beamline and target will be located near the UCN (Ultra Cold Neutron source) target area, branching off from the main UCN beamline. In particular, the 590 MeV proton beamline is designed to operate at a beam intensity of 100 ¿A (60 kW), requiring a continuous splitting of the main beam by an electrostatic splitter. The philosophy of the machine protection system (MPS) for the TATTOOS beamline will not differ significantly from the one already implemented for HIPA. However, it is particularly important for TATTOOS to avoid damage to the target due to irregular beam conditions. We will show the diagnostic systems involved and how the requirements of the machine protection system can be met. Emergency scenarios and protective measures are also discussed.

Poster THBP04 [3.228 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-HB2023-THBP04

About •

Received ※ 01 October 2023 — Revised ※ 03 October 2023 — Accepted ※ 10 October 2023 — Issued ※ 21 October 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THBP47

Studies on the Effect of Beam-Coupling Impedance on Schottky Spectra of Bunched Beams

impedance, simulation, synchrotron, coupling

595

C. Lannoy, D. Alves, K. Łasocha, N. Mounet
CERN, Meyrin, Switzerland
C. Lannoy, T. Pieloni
EPFL, Lausanne, Switzerland

Schottky monitors can be used for non-invasive beam diagnostics to estimate various bunch characteristics, such as tune, chromaticity, bunch profile or synchrotron frequency distribution. However, collective effects, in particular beam-coupling impedance, can significantly affect Schottky spectra when large bunch charges are involved. In such conditions, the available interpretation methods are difficult to apply directly to the measured spectra, thus preventing the extraction of beam and machine parameters, which is possible for lower bunch charges. To study the impact of impedance on such spectra, we perform here time-domain, macro-particle simulations and apply a semi-analytical method to compute the Schottky signal for various machine and beam conditions, including those corresponding to typical physics operation at the Large Hadron Collider. This study provides preliminary interpretations of the impact of beam-coupling impedance on Schottky spectra by incorporating longitudinal and transverse resonator-like impedance models into the simulations.

Poster THBP47 [1.133 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-HB2023-THBP47

About •

Received ※ 01 October 2023 — Revised ※ 08 October 2023 — Accepted ※ 09 October 2023 — Issued ※ 21 October 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

FRC1I2

High Beam Current Operation with Beam Diagnostics at LIPAc

operation, emittance, neutron, beam-diagnostic

649

S. Kwon, T. Akagi, A. De Franco, K. Hirosawa, K. Kondo, K. Masuda, M. Ohta
QST Rokkasho, Aomori, Japan
F. Bénédetti, Y. Carin, F. Cismondi, D. Gex
IFMIF/EVEDA, Rokkasho, Japan
B. Bolzon, N. Chauvin
CEA-IRFU, Gif-sur-Yvette, France
D. Jimenez-Rey, I. Podadera, A. Rodríguez Páramo, V. Villamayor
CIEMAT, Madrid, Spain
L. Maindive
UGR, Granada, Spain
J. Marroncle
CEA-DRF-IRFU, France
J.C. Morales Vega, I. Podadera
Consorcio IFMIF-DONES España, Granada, Spain
M. Poggi
INFN/LNL, Legnaro (PD), Italy

The Linear IFMIF Prototype Accelerator (LIPAc) is under commissioning in Rokkasho Fusion Institute in Japan and aims to accelerate 125 mA D⁺ at 9 MeV in CW mode for validating the IFMIF accelerator design. To insure a fine characterization and tuning of the machine many beam diagnostics are installed such as CTs, profile/position/loss/bunch length monitors spanning from Injector to the beam dump (BD). The beam operations in 1.0 ms pulsed D⁺ at 5 MeV was successfully completed with a low power BD (Phase B) in 2019. Despite the challenges posed by the pandemic, the crucial transition to a new linac configuration was also finalized to enable operation in 1.0 ms to CW D⁺ at 5 MeV with the high-power BD (Phase B+). Thanks to the efforts of the entire team, the 1st beam operation of Phase B+ was carried out in 2021. We present the experiences and challenges encountered during the beam operations, particularly the findings from the interceptive devices to measure the beam profile and emittance using tungsten wires rackets, SEMGrid. We also discuss the quick results on other beam diagnostics from the beam operation of Phase B+ toward HDC, which are currently conducting in this Summer.

Slides FRC1I2 [9.323 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-HB2023-FRC1I2

About •

Received ※ 02 October 2023 — Revised ※ 06 October 2023 — Accepted ※ 10 October 2023 — Issued ※ 23 October 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

FRA2I4

Summary of the Commissioning and Operations and Performance Working Group for HB2023 Workshop

operation, MMI, linac, proton

675

N. Milas
ESS, Lund, Sweden
M. Bai
SLAC, Menlo Park, California, USA
S. Wang
IHEP, Beijing, People’s Republic of China

Summary for WGD.

Slides FRA2I4 [11.582 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-HB2023-FRA2I4

About •

Received ※ 06 November 2023 — Revised ※ 09 November 2023 — Accepted ※ 17 November 2023 — Issued ※ 17 November 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)