ICARE is the charged particles detector system used for their identification and energy measurements. Built in the IReS (Strasbourg) is presently installed at HIL (Fig.1).

ICARE at HIL - project milestones

1. April 2004 - first ideas
2. December 2004 - official statement from IReS and HIL
3. December 2004 - program PICS dedicated for the project started
4. May 2005 - ICARE set-up test performed in Strasbourg
5. July 2005 - experimental vault for ICARE adapted
6. November 2005 - ICARE transported to Warsaw
7. December 2005 - assembly of ICARE mechanical parts in the vault (with the help of IReS team)
8. November 2007 - first experiments

Figure 1: Localization of the ICARE setup in the HIL experimental hall.

The ICARE system consists of the 1m diameter reaction chamber with up to 48 E-ΔE gas and semiconductor telescopes , supplied with the electronics and data acquisitions systems (see Fig.2).

Figure 2: ICARE at HIL.

The detectors can be mounted in any configuration preferred by users, using internal mounts. The self-supporting target holder allows to use up to 6 different targets. It can be remotely operated without necessity of opening the reaction chamber. The detector system layout is presented in Fig.3.

Figure 3: Inside view of ICARE

• gas + Si telescope ( Fig. 4(a) )
• Si + CsJ(Tl) telescope ( Fig. 4b )
• Si + Si + CsJ(Tl) telescope ( Fig. 4c )

Figure 4: Telescopes for the ICARE system. (a) Gas + Si telescope, (b) Si + CsJ(Tl) telescope (c) Si + Si + CsJ(Tl) telescope.

An example of charge and mass identification from test measurement of angular distribution of products from ¹⁴N + ¹²C are in Fig. 5.

Figure 5: Reaction products observed in one of the Si ΔE-E telescope in the ¹⁴N + ¹²C reaction at the Lab energy 80 MeV.
On the plot: raw spectra ΔE vs E.

Experimental programme to be performed using the ICARE system:

• Study of properties of isotopes far from stability line produced in heavy-ion reactions.
• Studies of fusion barrier height distributions using the quasi-elastic scattering method.
• Study of nucleus deformation using light-charged particles emission spectra.