Maybe JEOL went to a different window material? Wouldn't be the first time they did something like that and didn't tell anyone. Either way, cool, free counts! Did P/B get better or worse?

Too bad about Chitna. Are you at least going to get a chance to murder Bambi in August?

Best,
OKN

On Fri, Jun 15, 2018 at 12:47 AM, Michael, Peter <[log in to unmask]> wrote:

Ken,

 

If it is a thinner window than you had before, you should see the effect mostly for the softest x-rays:

 

The ratio New counts/ old counts  would be highest for the softest x-rays.  The ratio would progressively decrease as x-ray energy increased. 

 

Peter

 

Peter Michael

McMan Professor and Chair

Department of Geosciences

The University of Tulsa

918-631-3017

Fax: 918-631-2091

 

From: JEOL-Focused Probe Users List <[log in to unmask]> on behalf of Ken Severin <[log in to unmask]>
Reply-To: JEOL-Focused Probe Users List <[log in to unmask]>
Date: Friday, June 15, 2018 at 12:22 AM
To: "[log in to unmask]" <[log in to unmask]>
Subject: Re: [PROBEUSERS] Detector Window question

 

 

On Thu, Jun 14, 2018, 14:20 Ron Rasch <[log in to unmask]> wrote:

Yes, sounds big to me too. Are the slits in the same position ?

 

Ron

Uni of QLD


On 15/06/2018, at 6:27 AM, "Ken Severin" <[log in to unmask]> wrote:

Hi all - we just changed the detector window on one of our argon detectors and are seeing somewhere around 20-25% more counts using the new window.  This seems like a huge increase.  While I would expect some change, I would expect the change to be in the range of a couple percent.  Has anyone else seen this?

 

Thanks!

 

Ken Severin

U Alaska Fairbanks

JXA-8530F

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