TWEPP-09 Topical Workshop on Electronics for Particle Physics

Standalone radiation monitors for electronics in High Energy Physics

24 Sept 2009, 16:15

2h 15m

Institut des Cordeliers 15, rue de l'Ecole de Médecine (Métro Odéon) Paris, France

Poster Radiation tolerant components and systems POSTERS SESSION

Speaker

Dr Thijs Wijnands (CERN)

Description

Based on the principle of the RADMON on line radiation monitoring system for the LHC, a new type of low cost, battery powered radiation monitors has been designed that do not need external cabling. In this paper we will outline the hardware design, summarise on the radiation tolerant components and tests and describe the associated usb interace and labview software. First operational data from the CERN accelerators will be given and compared to monte carlo simulations.

Summary

A new type of radiation monitors is presented that does not need any external cabling. Using special selected Li batteries, integrated levels of the total dose, 1 MeV n and h > 20 MeV are continiously stored for a period of maximum 680 days. The data is stored in triplicated, sepreately powered registers for a maximum of 10 years and can be read out at any time. The key points in the design were to lower the current consumption of the entire device to 1.6 mA, to make it radiation resistant up to 200 Gy and to make it operate reliable in the magnetic fields of CMS/ATLAS. To retrieve the data from a device, a USB interface in combination with a Labview application is used that can be installed on mini-PCs and on handhold computers. The readout operation takes only a few seconds which means a considerable improvement with respect to classical passive dosimeters.

Presentation materials

Paper

T.WijnandsTWEPP09.docx

T.WijnandsTWEPP09.pdf

Poster

poster-RADMON-WIJNANDS.pdf

poster-RADMON-WIJNANDS.pptx