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#51
Announcements / Invitation for IBIC 2021
Last post by Changbum Kim - September 09, 2021, 11:48:54 AMDear Colleagues,
On behalf of the organizing committee, I am pleased to invite you to the 10th International Beam Instrumentation Conference (IBIC 2021). This year we will have a virtual conference from September 13 to September 16 because of the COVID-19 pandemic. The homepage address is:
http://pal.postech.ac.kr/ibic2021
IBIC is a gathering of the world's beam instrumentation community and it reflects the maturity of international collaboration in the field of beam instrumentation for accelerators. IBIC is dedicated to exploring the physics and engineering challenges of beam diagnostic and measurement techniques for particle accelerators worldwide.
The conference program will include tutorials on selected topics, invited and selected talks, as well as poster sessions.
We warmly welcome you to make part of IBIC 2021 and look forward to seeing you online.
Changbum Kim,
IBIC 2021 Conference Chair
On behalf of the organizing committee, I am pleased to invite you to the 10th International Beam Instrumentation Conference (IBIC 2021). This year we will have a virtual conference from September 13 to September 16 because of the COVID-19 pandemic. The homepage address is:
http://pal.postech.ac.kr/ibic2021
IBIC is a gathering of the world's beam instrumentation community and it reflects the maturity of international collaboration in the field of beam instrumentation for accelerators. IBIC is dedicated to exploring the physics and engineering challenges of beam diagnostic and measurement techniques for particle accelerators worldwide.
The conference program will include tutorials on selected topics, invited and selected talks, as well as poster sessions.
We warmly welcome you to make part of IBIC 2021 and look forward to seeing you online.
Changbum Kim,
IBIC 2021 Conference Chair
#52
General Discussion / BPM system in different instit...
Last post by Benoît Roche - September 08, 2021, 01:24:17 PMThe idea of this topic is to make the most exhaustive list of the BPMs system in all institutes.
Please indicate what your BPM system is as a reply in this topic, and I will include it in the list.
Later, we could do the same kind of list for other systems (emittance monitors, bunch-by-bunch feedback, XBPM, ...), but for the moment let's start with the most wildly used system in storage rings.
Please indicate what your BPM system is as a reply in this topic, and I will include it in the list.
Later, we could do the same kind of list for other systems (emittance monitors, bunch-by-bunch feedback, XBPM, ...), but for the moment let's start with the most wildly used system in storage rings.
| ALBA | |
| BPM system: | 120 BPMs (Libera Brilliance) in the storage ring 44 BPMs in the booster, 24 of them are equipped with a Libera Brilliance. A few Libra Spark Single Pass for the Linac and transfer lines |
| References: | Upgrade of BPMs and SRMs for the ALBA Booster to Storage Ring transfer line, DEELS 2017 Commissioning of the ALBA Fast Orbit Feedback system, IBIC2014, WEPD23 |
| Comments: | 88 Libera Brilliance among the 120 used for fast orbit feedback to have squared matrix, since we have 88 correctors. Libera Brilliance are doing quite well after ~ 10 years operation but this year (2021) fans started to fail consistently and we decided to perform a full replacement campaign. Testing 2 Libera Brilliance+ and Libera Spark+Pilot-tone in some special BPMs. One BPM (the first after injection) is equipped with a Libera Spark Single pass and we use it for Linac to Booster injection efficiency measurements. |
| Diamond Light Source | |
| BPM system: | 172 BPMs on storage ring (168 orginally); Libera Brilliance + Libera Electron |
| References: | Performance of the FOFB with DDBA in Diamond Light Source, IPAC2017, TUPIK113 Diamond Light Source Electron Beam Position Feedback: Design, Realization and Performance, ICALEPCS2009, THB003 |
| Comments: | For D-II, number of BPMs on storage ring increases to 252 and we intend to use pilot tone with analog front end in-tunnel and digital signal processing using mTCA platform in the Control and Instrumentation Areas [Diamond-II CDR ]. |
| ESRF | |
| BPM system: | 192 Libera Brilliances and 128 Libera Sparks ERXR (iTech) for the Storage Ring 75 Sparks for the Booster |
| References: | Strongly increased Performance and Functionalities of the ESRF BPMs with the Libera system (ESLS 2010) Complete Test Results of New BPM Electronics for the ESRF New LE-Ring (IBIC2018) |
| Comments: | SR Fast Orbit Feedback only using the 192 Brilliances (but work in progress to include the 128 Sparks) |
#53
Need help? / Re: Microscope for X-ray imagi...
Last post by Ewald - September 07, 2021, 05:27:57 PMHi Cigdem,
some consideration that could maybe help you:
Are you sure that your X-ray spot size is smaller than 5um? Do you have the possibility to check this with another technique?
Have you checked the depth of field of your imaging setup? If it is not smaller than the scintillator thickness, there is no need to reduce the thickness.
Have you considered an influence of the substrate? X-rays could be absorbed by the substrate, reemit and generate fluorescence in the doped part further away from the primary spot?
Cheers,
Friederike
some consideration that could maybe help you:
Are you sure that your X-ray spot size is smaller than 5um? Do you have the possibility to check this with another technique?
Have you checked the depth of field of your imaging setup? If it is not smaller than the scintillator thickness, there is no need to reduce the thickness.
Have you considered an influence of the substrate? X-rays could be absorbed by the substrate, reemit and generate fluorescence in the doped part further away from the primary spot?
Cheers,
Friederike
#54
General Discussion / Re: Welcome
Last post by Changbum Kim - September 06, 2021, 05:04:01 PMThank you Benoit for your great job. I will make a link from the IBIC 2021 homepage to this forum.
In addition, it is really nice to meet you all. Hello.
#55
General Discussion / Re: Welcome
Last post by Nashat1985 - September 06, 2021, 09:27:40 AMHi Benoit, hello to all members, it is my pleasure to join the beam diagnostic group wish you all the best ...😊
#56
General Discussion / Re: Welcome
Last post by LorraineBobb - September 03, 2021, 05:05:47 PMThank you Benoit for taking this initiative! Hello to all :-)
#57
General Discussion / bonjour to all future users of...
Last post by Kees Scheidt - September 03, 2021, 02:51:23 PMThanks Benoit,
and hello (bonjour) to all future users of this forum,
don't be shy, try to use it, and we can (together) really make it useful,
I will always respond/answer to any topic that concerns me
and will keep you updated on our work,
our success, difficulties and ... failures
Kees
and hello (bonjour) to all future users of this forum,
don't be shy, try to use it, and we can (together) really make it useful,
I will always respond/answer to any topic that concerns me
and will keep you updated on our work,
our success, difficulties and ... failures
Kees
#58
Need help? / Microscope for X-ray imaging
Last post by cozkan - September 03, 2021, 12:05:08 PMTrying to image a focussed beam on a scintillator (5um Ce:YAG on YAG substrate) at 11keV (photon energy).
NA of the microscope objective used is 0.65 but cannot seem to measure a beam spot size ons cintilaltor smaller than 5um. The expected spot size is 2.5um.
Is this due to the scintillator? Do I need a thinner one? is this because of the higher penetration depth at 11keV? Is it because this is a focussed beam?
Does anyone have any similar experience?
Many thanks in advance
NA of the microscope objective used is 0.65 but cannot seem to measure a beam spot size ons cintilaltor smaller than 5um. The expected spot size is 2.5um.
Is this due to the scintillator? Do I need a thinner one? is this because of the higher penetration depth at 11keV? Is it because this is a focussed beam?
Does anyone have any similar experience?
Many thanks in advance
#59
General Discussion / Re: Welcome
Last post by cozkan - September 03, 2021, 12:02:04 PMMany thanks for this connection Benoit
#60
General Discussion / Re: Welcome
Last post by Elena Buratin - September 01, 2021, 09:29:48 AMHello! Thanks Benoit for this nice idea and for the opportunity to share our questions!