From daniel.cano@ciemat.es Mon May 12 11:30:22 2008 Date: Wed, 16 Apr 2008 12:49:55 +0200 From: Daniel Cano Ott To: Sami Rinta-Antila , Thomas Davinson Cc: Berta Rubio , Gerl Juergen , Gorska Magdalena Dr. , eva.reillo@ciemat.es, Zsolt Podolyak , Jose Luis Tain Enriquez , Alejandro Algora , Martinez Perez Trinitario Subject: Re: AIDA enclosure [ The following text is in the "ISO-8859-1" character set. ] [ Your display is set for the "ISO-8859-15" character set. ] [ Some special characters may be displayed incorrectly. ] Dear colleagues, please find attached the draft version of a report on the simulations for the AIDA enclosure performed by Eva. We have decided to send it out (not revised) to distribute the info as fast as possible. Do not hesitate to contact us in case of further questions. Regards, Daniel Sami Rinta-Antila escribió: > Hi Dani, > > We are starting the mechanical design of the AIDA detector set-up. In > the first mechanical design meeting we came into a conclusion that we > will go for cooled dry gas rather than vacuum around the DSSSDs. This > will allow among other things lighter enclosure as it only needs to > stand the slight overpressure inside. > > What comes to the material we are open for suggestions. Of course it > has to be as transparent as possible for gamma-rays and neutrons. For > gamma-rays as low Z as possible and minimum amount of material are > desired. In the neutron case it is not that straightforward. > > I am writing to you because as a neutron detection expert you have > probably gone through these considerations already before. I have seen > statements that aluminium or carbon-fibre (depending on the > composition of the resine) would be fine for neutrons. Do you have any > preference/comments concerning them? Do you know if somebody has > already done neutron attenuation simulations in possible enclosure > materials with relevant neutron energies? > > The enclosure should also provide an rf-shielding for the detectors. > So if a composite material is chosen, some kind of metal mesh/layer > should be incorporated. > > I would appreciate your input on this. > > Cheers, > Sami > [ Part 2, Application/PDF 271KB. ] [ Unable to print this part. ] [ Part 3, Text/X-VCARD (charset: UTF-8 "Internet-standard Unicode") ] [ (Name: "daniel_cano.vcf") 16 lines. ] [ Unable to print this part. ]