Hi,

Kind of radiation : high energy Hadrons (>20MeV up to 7TeV) and low
energy neutrons ( 1MeV eq )
The total dose may reach some Kgray, within a period varying from a few
weeks to several years.

Hope this makes things clearer, 

Best regards,

Betty

> -----Original Message-----
> From: [log in to unmask] 
> [mailto:[log in to unmask]] 
> Sent: mercredi, 25. avril 2007 18:25
> To: TechNet E-Mail Forum; Betty Magnin
> Subject: Re: [TN] Conformal coating and radiation
> 
> What kind of radiation, what intensity, and for how long?
> 
> Doug Pauls
> 
>> Dear technetters,
>>
>> We need to coat a small PCB which is to be used in a wet 
>> environnement,
>> with a relative humidity close to 90%.
>> Our main concern is that the PCB will in the same time be exposed to
>> radiations.
>> Does anyone of you have any experience in this kind of application ?
>> Thank you in advance for your help,
>> 
>> Betty Magnin
>> TS-DEM-BE
>> Tel : +41 22 767 06 88
>> Fax : +41 22 767 87 79
>> http://cern.ch/dem

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------