Experimental Physics and
Industrial Control System

"Chandler, Brendan via Tech-talk" <tech-talk at aps.anl.gov> · Wed, 28 Jul 2021 19:59:00 +0000

Hi Keith,

At APS we've been evaluating the Thermo FHT6020 and I haven't seen the performance issues mentioned in the Australian Synchrotron thread.  I tried timing 100 requests to our FHT6020 device, alternating beween channels 1 and 2 each time, and it averaged 0.05 seconds per request, doing the entire 100 in about 5 seconds.  Maybe Thermo Fischer has updated the firmware or there was some other issue since then?

I've made a streamdevice based IOC to talk to the FHT6020 and could share with you if you're interested.  Similarly, I have a streamdevice IOC for the Mirion DRM-3000 radiation monitor if interested.

Brendan

________________________________________
From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Baker, Keith (DLSLtd, RAL, LSCI) via Tech-talk <tech-talk at aps.anl.gov>
Sent: Wednesday, July 28, 2021 10:36
To: tech-talk
Subject: New Radiation Monitor options

Hello,
We are looking at the Berthold LB6419 Neutron and Gamma Radiation Monitor as a possible replacement for our old obsolete ones.
I’ve been told these are in use at PETRA. Can anyone confirm that and has anyone already developed EPICS support for this model or similar?

I see that a similar message about new Radiation Monitors was posted by the Australian Synchrotron in 2018. I think the summary of responses was,

Health Physics Instruments (HPI) 6016 Area Radiation Monitors (Used in NSLS-II. Drivers available)
Thermo Scientific FHT 6020 (Drivers developed at SLAC and the FHI FEL, but the device is quite slow apparently. “read from multiple channels can take several seconds”. I assume that means several values.)
Ludlum 375 (No EPICS support mentioned.)
Berthold (No EPICS support mentioned.)

Any other suggestions would be welcome.
Thanks.
Keith Baker
Diamond Light Source

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System