1.
|
|
2.
|
|
3.
|
Operation of a Cryogenic Current Comparator with Nanoampere Resolution for Continuous Beam Intensity Measurements in the Antiproton Decelerator at CERN
/ Fernandes, Miguel (CERN ; U. Liverpool (main)) ; Alves, Diogo (CERN) ; Koettig, Torsten (CERN) ; Lees, Andrew (CERN) ; Schwickert, Marcus (Darmstadt, GSI) ; Stöhlker, Thomas (Darmstadt, GSI ; U. Jena (main)) ; Tan, Jocelyn (CERN) ; Welsch, Carsten (U. Liverpool (main))
Low-intensity charged particle beams are particularly challenging for non-perturbative beam diagnostics due to the small amplitude of induced electromagnetic fields. The Antiproton Decelerator (AD) and Extra Low ENergy Antiproton (ELENA) rings at CERN decelerate beams containing 10⁷ antiprotons. [...]
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-THPML044
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPML044
|
|
4.
|
Optimized Cryogenic Current Comparator for CERN's Low-Energy Antiproton Facilities
/ Fernandes, Miguel (CERN ; U. Liverpool (main)) ; Alves, Diogo (CERN) ; Geithner, Rene (U. Jena (main) ; Helmholtz Inst., Jena) ; Koettig, Torsten (CERN) ; Lees, Andrew (CERN) ; Neubert, Ralf (U. Jena (main) ; Helmholtz Inst., Jena) ; Oponowicz, Ewa (CERN) ; Schwickert, Marcus (Darmstadt, GSI) ; Stöhlker, Thomas (U. Jena (main) ; Helmholtz Inst., Jena) ; Tan, Jocelyn (CERN) et al.
Non-perturbative measurement of low-intensity charged particle beams is particularly challenging for beam diagnostics due to the low amplitude of the induced electromagnetic fields. In the low-energy Antiproton Decelerator (AD) and the future Extra Low ENergy Antiproton (ELENA) rings at CERN, an absolute measurement of the beam intensity is essential to monitor operational efficiency and provide important calibration data for all AD experiments. [...]
2017 - 4 p.
- Published in : 10.18429/JACoW-IBIC2016-MOPG48
Fulltext: PDF;
In : International Beam Instrumentation Conference, Barcelona, Spain, 11 - 15 Sep 2016, pp.MOPG48
|
|
5.
|
Versatile Beamline Cryostat for the Cryogenic Current Comparator (CCC) for FAIR
/ Haider, David (Darmstadt, GSI) ; De Gersem, Herbert (Darmstadt, Tech. U.) ; Golm, Jessica (Jena U. ; CERN) ; Koettig, Torsten (CERN) ; Kurian, Febin (Darmstadt, GSI) ; Marsic, Nicolas (Darmstadt, Tech. U.) ; Müller, Wolfgang (Darmstadt, Tech. U.) ; Schmelz, Matthias ; Schwickert, Marcus (Darmstadt, GSI) ; Sieber, Thomas (Darmstadt, GSI) et al.
The Cryogenic Current Comparator (CCC) extends the measurement range of traditional non-destructive current monitors used in accelerator beamlines down to a few nano-amperes of direct beam current. This is achieved by a cryogenic environment of liquid helium around the beamline, in which the beam’s magnetic field is measured with a Superconducting Quantum Interference Device (SQUID), which is itself enclosed in a superconducting shielding structure. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IBIC2019-MOPP007
Fulltext: PDF;
In : 8th International Beam Instrumentation Conference (IBIC 2019), Malmo, Sweden, 8 - 12 Sep 2019, pp.MOPP007
|
|
6.
|
Cryogenic Current Comparator as Low Intensity Beam Current Monitor in the CERN Antiproton Decelerators
/ Fernandes, M (CERN) ; Tan, J (CERN) ; Soby, L (CERN) ; Welsch, CP (Cockcroft Inst. Accel. Sci. Tech.)
In the low-energy Antiproton Decelerator (AD) and the future Extra Low ENergy Antiproton (ELENA) rings at CERN, an absolute measurement of the beam intensity is essential to monitor any losses during the deceleration and cooling phases. However, existing DC current transformers can hardly reach the μA level, while at the AD and ELENA currents can be as low as 100 nA. [...]
CERN-ACC-2013-0304.-
Geneva : CERN, 2013 - 4 p.
Fulltext: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.MOPF25
|
|
7.
|
|
8.
|
A Cryogenic Current Comparator for the Low-Energy Antiproton Facilities at CERN
/ Fernandes, Miguel (CERN ; Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Geithner, Rene (Jena U. ; Helmholtz Inst., Jena) ; Neubert, Ralf (Jena U.) ; Schwickert, Marcus (Darmstadt, GSI) ; Stöhlker, Thomas (Helmholtz Inst., Jena ; Darmstadt, GSI ; Jena U.) ; Tan, Jocelyn (CERN) ; Welsch, Carsten (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.)
Several laboratories have shown the potential of Cryogenic Current Comparators (CCC) for an absolute measurement of beam intensity down to the nA level. This type of current monitor relies on the use of Superconducting QUantum Interference Device (SQUID) magnetometers and superconductor magnetic shields. [...]
2016 - 5 p.
- Published in : 10.18429/JACoW-IBIC2015-MOPB043
Fulltext: PDF;
In : International Beam Instrumentation Conference , Melbourne, Australia, 13 - 17 Sep 2015, pp.MOPB043
|
|
9.
|
Non-perturbative measurement of low-intensity charged particle beams
/ Fernandes, M (CERN ; Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Geithner, R (Jena U. ; Helmholtz Inst., Jena) ; Golm, J (Jena U.) ; Neubert, R (Jena U.) ; Schwickert, M (Darmstadt, GSI) ; Stöhlker, T (Jena U. ; Helmholtz Inst., Jena ; Darmstadt, GSI) ; Tan, J (CERN) ; Welsch, C P (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.)
Non-perturbative measurements of low-intensity charged particle beams are particularly challenging to beam diagnostics due to the low amplitude of the induced electromagnetic fields. In the low-energy antiproton decelerator (AD) and the future extra low energy antiproton rings at CERN, an absolute measurement of the beam intensity is essential to monitor the operation efficiency. [...]
2017
- Published in : Supercond. Sci. Technol. 30 (2017) 015001
Fulltext: PDF;
|
|
10.
|
Superconducting beam charge monitors for antiproton storage rings
/ Tympel, Volker (Jena U.) ; Neubert, Ralf (Jena U.) ; Seidel, Paul (Jena U.) ; Geithner, René (Jena U. ; Helmholtz Inst., Jena) ; Golm, Jessica (Jena U. ; Helmholtz Inst., Jena) ; Stöhlker, Thomas (Jena U. ; Helmholtz Inst., Jena ; Darmstadt, GSI) ; Kurian, Febian (Jena U. ; Helmholtz Inst., Jena ; Darmstadt, GSI) ; Sieber, Thomas (Darmstadt, GSI) ; Schwickert, Marcus (Darmstadt, GSI) ; Fernandes, Miguel (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U. ; CERN)
A Cryogenic Current Comparator (CCC) is a new type of instruments for monitoring charged beams like ions or antiprotons. Using superconducting effects is it possible to create a nondestructive, contactless and easy to calibrate beam measurement system with a high current resolution in amplitude and time. [...]
2017 - 6 p.
- Published in : JPS Conf. Proc. 18 (2017) 011042
Fulltext: PDF;
In : 12th International Conference on Low Energy Antiproton Physics, Kanazawa, Japan, 6 - 11 Mar 2016, pp.011042
|
|