Message: Re: CAN'T UNDERSTAND A FEW THINGS RELATED TO SURFACES Not Logged In (login)
 Next-in-Thread Next-in-Thread
 Next-in-Forum Next-in-Forum

Feedback Re: CAN'T UNDERSTAND A FEW THINGS RELATED TO SURFACES 

Forum: Processes Involving Optical Photons
Re: Sad CAN'T UNDERSTAND A FEW THINGS RELATED TO SURFACES (Athreya Shankar)
Date: 02 Jun, 2011
From: Gumplinger Peter <Gumplinger Peter>

> hello, Try as I might, I am not able to understand the meanings of

> groundbackpainted, groundfrontpainted, polishedfrontpainted,

> polishedbackpainted, and other surface types.

.... maybe this presentation is more helpful:

http://indico.in2p3.fr/contributionDisplay.py?contribId=29&sessionId=18&confId=443

"...backpainted" means that the surface has a Lambertian reflector backing a thin dielectric space as for example a Al-mylar wrapping with a narrow air gap. The polish or ground refers to the smoothness of the surface between the scintillator and the thin dielectric space. "...frontpainted" does not have this space. "polishedfrontpainted" is a perfectly smooth mirror. "groundfrontpainted" is a Lambertian reflector.

> I posted a couple of questions two days ago.

As I understand you were left with only one question - the mylar issue?

P.S. I was away till yesterday. Capitalizing posting titles is not really a fine way to go about getting a reply.

Inline Depth:
 1 1
 All All
Outline Depth:
 1 1
 2 2
 All All
Add message: (add)

1 Ok: Re: CAN'T UNDERSTAND A FEW THINGS RELATED TO SURFACES   (Athreya Shankar - 02 Jun, 2011)
 Add Message Add Message
to: "Re: CAN'T UNDERSTAND A FEW THINGS RELATED TO SURFACES"

 Subscribe Subscribe

This site runs SLAC HyperNews version 1.11-slac-98, derived from the original HyperNews