EURONS Town Meeting 2008
September 17 - 19, 2008 -
Information

Title:	Mr.
Family Name:	Madurga
First Name:	Miguel
Gender:	male
E-Mail:	madurgaiem.cfmac.csic.es
Affiliation for Badge:	CSIC, Madrid
Institute:	Instituto de Estructura de la Materia
Address (Street):	Serrano 113bis
Postal Code, City:	28006 Madrid
Country:	Spain
Phone:	+34 91 561 68 00
Fax:	+ 34 91 585 54 13
Young researcher with contribution:	Yes
Arrival Date:	September 16
Departure Date:	September 19
Author(s):	Miguel Madurga and O. Tengblad
Institute(s):	Instituto de Estructura de la Materia, CSIC
Title:	Detector and electronic developments for Low energy multi particle break-up studies.
Abstract:	The study of excited states of unbound light nuclei includes the simultaneous detection of several charge particles emitted with very low energy. This puts sever constrains on the detection system to be used. For the detectors, high segmentation is needed to be able to detect several coincident particles, very thin dead layers to reduce the cut-of energy in combination with thin detectors to minimize sensitivity to beta and neutral particles. For particle mass identification different techniques can be applied; Time of Flight, pulse shape analysis, or telescopes. At low energy heavy particles are easily stopped in the delta E, this makes the pulse shape technique very difficult to apply due to very weak signal and high noise level. A recent approach is using extremely thin (1 um) delta-E detectors in monolithic assembly on a thick E (400 um) detector both doped into the same wafer. The high segmentation of the detectors leads to experiments with an increased amount of electronic channels. Optimized electronic and the use of multiplexing of the signals makes a high packing ratio possible while still keeping spectroscopy resolution. Detector and electronic developments made in parallel to experimental studies of multi particle break-up of excited states will be discussed.

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