SEC experiment

The SEC experiment uses radioactive ion beams from ISOLDE, at the end of XT03 beamline of the HIE-ISOLDE facility.{{Cite journal |last1=Sparta |first1=Roberta |last2=Figuera |first2=P. |last3=Pietro |first3=A. di |last4=Tengblad |first4=Olof |last5=Fernández-García |first5=J. P. |last6=Acosta-Sánchez |first6=Luis Armando |last7=Bjorn |first7=Jonson |last8=García Borge |first8=María José |last9=Bruni |first9=Giovanni |last10=Davison |first10=Thomas |last11=Ovejas |first11=J. D. |last12=Fraile |first12=Luis M. |last13=Galaviz |first13=D. |last14=Halkjaer Jensen |first14=Jesper |last15=La Cognata |first15=Marco |date=2019-12-05 |title=Elastic scattering of p-halo 8B beam close to the Coulomb barrier |url=https://digital.csic.es/handle/10261/212661 |journal=Comunicaciones Congresos}} The ion beam first passes through a collimator, of 15 mm aperture, surrounded by 4 silicon detectors, designed for beam optimisation.{{Cite web |title=S E C : Scattering Experiments Chamber at XT03 HIE-ISOLDE |url=http://isolde-sec.web.cern.ch |access-date=2023-08-14 |website=isolde-sec.web.cern.ch |language=en}}

The SEC chamber has a diameter of 1 m and height of 50 cm, with the reaction target placed in the centre on a motorised target holder. The target holder has the space for four targets, and each target can be moved in place via remote control. The reaction target is surrounded by double-sided silicon strip detectors (DSSSD) which are positioned so that the angular coverage is optimised, depending on the experiment.{{Cite journal |last1=Kundalia |first1=K. |last2=Gupta |first2=D. |last3=Ali |first3=Sk M. |last4=Saha |first4=Swapan K. |last5=Tengblad |first5=O. |last6=Ovejas |first6=J. D. |last7=Perea |first7=A. |last8=Martel |first8=I. |last9=Cederkall |first9=J. |last10=Park |first10=J. |last11=Szwec |first11=S. |last12=Moro |first12=A. M. |date=2022-10-10 |title=Study of elastic and inelastic scattering of 7Be + 12C at 35 MeV |journal=Physics Letters B |volume=833 |pages=137294 |doi=10.1016/j.physletb.2022.137294 |issn=0370-2693|doi-access=free |arxiv=2207.10865 }} DSSSDs allow for efficient detection of all emitted particles in the reaction.{{Cite journal |last1=Fynbo |first1=H. O. U. |last2=Diget |first2=C. Aa. |last3=Prezado |first3=Y. |last4=Äystö |first4=J. |last5=Bergmann |first5=U. C. |last6=Cederkäll |first6=J. |last7=Dendooven |first7=P. |last8=Fraile |first8=L. M. |last9=Franchoo |first9=S. |last10=Fulton |first10=B. R. |last11=Huang |first11=W. |last12=Huikari |first12=J. |last13=Jeppesen |first13=H. |last14=Jokinen |first14=A. |last15=Jonson |first15=B. |date=2004-06-28 |title=News on 12C from β-decay studies |url=https://www.sciencedirect.com/science/article/pii/S0375947404005482 |journal=Nuclear Physics A |series=Proceedings of the 8th International Conference on Clustering Aspects of Nuclear Structure and Dynamics |volume=738 |pages=59–65 |doi=10.1016/j.nuclphysa.2004.04.012 |issn=0375-9474|url-access=subscription }} The main support for the detector is a circular movable table which has radially arranged holes at the centre.File:SEC_experiment.jpg

GLORIA (GLObal ReactIon Array) is a configuration used in SEC to measure fragments produced in reactions. It consists of six silicon telescopes, which surround a certain scattering angle of the reaction target (from 15° to 160°.{{Cite journal |last1=Ovejas |first1=J.D. |last2=Knyazev |first2=A. |last3=Martel |first3=I. |last4=Tengblad |first4=O. |last5=Borge |first5=M.J.G. |last6=Cederkäll |first6=J. |last7=Keeley |first7=N. |last8=Rusek |first8=K. |last9=García-Ramos |first9=C. |last10=Acosta |first10=L.A. |last11=Arokiaraj |first11=A.A. |last12=Babo |first12=M. |last13=Cap |first13=T. |last14=Ceylan |first14=N. |last15=de Angelis |first15=G. |date=2020 |title=Halo Effects in the Low-energy Scattering of \(^{15}\)C with Heavy Targets |url=http://www.actaphys.uj.edu.pl/findarticle?series=Reg&vol=51&page=731 |journal=Acta Physica Polonica B |language=en |volume=51 |issue=3 |pages=731 |doi=10.5506/APhysPolB.51.731 |issn=0587-4254|doi-access=free |hdl=10272/18868 |hdl-access=free }}{{Cite journal |last1=Marquínez-Durán |first1=G. |last2=Acosta |first2=L. |last3=Berjillos |first3=R. |last4=Dueñas |first4=J. A. |last5=Labrador |first5=J. A. |last6=Rusek |first6=K. |last7=Sánchez-Benítez |first7=A. M. |last8=Martel |first8=I. |date=2014-08-11 |title=GLORIA: A compact detector system for studying heavy ion reactions using radioactive beams |url=https://www.sciencedirect.com/science/article/pii/S0168900214003787 |journal=Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |language=en |volume=755 |pages=69–77 |doi=10.1016/j.nima.2014.04.002 |bibcode=2014NIMPA.755...69M |issn=0168-9002|hdl=10261/288100 |hdl-access=free }} GLORIA was designed to have a compact geometry with the ability to resolve mass and ion charge up to carbon isotopes, due to the two-stage DSSD telescopes.

The SAND array is used at the scattering chamber SEC, for the detection of charged particles and neutrons.{{Cite journal |last1=Gupta |first1=D |last2=Kundalia |first2=K |last3=Ali |first3=Sk M |last4=Maity |first4=S |last5=Mitra |first5=R |last6=Saha |first6=Swapan K |last7=Tengblad |first7=O |last8=Tavora |first8=V G |last9=Perea |first9=A |last10=Borge |first10=M J G |last11=Martel |first11=I |last12=Cederkall |first12=J |last13=Chishti |first13=M |last14=Park |first14=J |last15=Moro |first15=A M |date=26 Sep 2022 |title=Breakup of 9Li to study the 8Li(n,γ) reaction |url=https://cds.cern.ch/record/2834501/files/INTC-P-639.pdf |journal=Proposal to the ISOLDE and Neutron Time-of-Flight Committee}} The array consists of 30 modules, each being a plastic scintillator with fast photomultiplier tubes. The array can be moved to bring it closer to the target.{{Cite journal |last1=Borge |first1=M J G |last2=Briz |first2=J A |last3=Cederkall |first3=J |last4=De Angelis |first4=G |last5=Figuera |first5=P P |last6=Fraile |first6=L M |last7=Fynbo |first7=H O U |last8=Gad |first8=A |last9=Heinz |first9=A |last10=Holl |first10=M |last11=Jensen |first11=E |last12=Johansen |first12=J G |last13=Johansson |first13=H T |last14=Jonson |first14=B |last15=Martel |first15=I |display-authors=14 |date=6 Jan 2021 |title=Reaction studies with neutron-rich light nuclei at the upgraded SEC Device |url=https://cds.cern.ch/record/2748710/files/INTC-P-597.pdf |journal=Proposal to the ISOLDE and Neutron Time-of-Flight Committee}}

• [https://isolde.cern/sec SEC page on ISOLDE website]
• [http://isolde-sec.web.cern.ch SEC website]

Category:CERN experiments