Speaker
Richard Catherall
(CERN)
Description
The On-Line Isotope Mass Separator ISOLDE [1] is a facility dedicated to the production of a large variety of radioactive ion beams (RIB) for a great number of different experiments. Over 1000 radioactive nuclides from 70 elements can be produced in thick high-temperature targets via spallation, fission or fragmentation reactions with the PS-Booster pulsed proton-beam. With the arrival of CERN’s new linear accelerator Linac 4 [2,3], ISOLDE will have the possibility to exploit a factor of 3 increase in proton-beam intensity and a possible proton-beam energy increase from 1.4 GeV to 2 GeV [4].
After 20 years of successful ISOLDE operation at the PS-Booster, a major upgrade of the facility, the HIE-ISOLDE (High Intensity and Energy ISOLDE) project was launched in 2010. It is divided into three parts; a staged upgrade of the REX post-accelerator to increase the beam energy from 3.3 MeV/u to 10 MeV/u using a super-conducting Linac, an evaluation of the critical issues associated with an increase in proton-beam intensity and a machine design for an improvement in RIB quality. The latter two will be addressed within the HIE-ISOLDE Design Study.
Protons/pulse Intensity(µA) Energy(GeV) Cycle(s) Power(kW)
3.3x10^13 2.2 1.4 1.2 3.1
1x10^14 6.7 1.4 1.2 9.3
1x10^14 6.7 2.0 1.2 13.3
Table 1. Projected beam parameters considered within the HIE- ISOLDE Design study. Based on ISOLDE receiving 50% of available proton pulses from the PS-Booster.
This presentation will review the progress of the Design Study by outlining the critical issues being addressed concerning the intensity upgrade and beam quality.
REFERENCES
[1] A. Herlert, The ISOLDE Facility, Nuclear Physics News, Vol. 20/ No.4, 2010
[2] Linac4 Technical Design Report, CERN-AB-2006-084 ABP/RF
[3] M. Vretenar et.al., Progress in the Construction of Linac4 at CERN, 26th International Linear Accelerator Conference, LINAC12, Tel Aviv.
[4] R. Garoby et al., “Plans for the Upgrade of the LHC Injectors,” IPAC2012, Conf. Proc. C1205201 (2012) TUXA02; http://www.JACoW.org
Primary author
Richard Catherall
(CERN)
