[ RadSafe ] H-3 Smears

franz.schoenhofer at chello.at franz.schoenhofer at chello.at
Wed Mar 26 10:18:31 CDT 2008

Wes, Joel,Marcel,

Yes, Hidex has developed a new counter "300SL" and they sent me information, but I have not seen it yet nor did I have a chance to test it. Maybe they will present it at the upcoming conference on LSC during ther last week of May in Davos, Switzerland. Since it weighs according to the description 95 kg it is rather transportable than portable.

Regarding the TRIATHLER: This instrument is produced by HIDEX in Turku, Finland, since many years. BIOSCAN sells it in the USA. This instrument is truly portable. I had it once with me in Saudi Arabia. There is a lot of different applications for this instrument. It has an excellent alpha-beta separation which reaches the specifications of a Quantulus. Since it has no lead-shielding and only one photomultiplier the LLD's for beta-emitters are of course rather high. It is simple to operate and can be connected to a laptop for data storage and processing. I have tested it especially for radon in water, but also for radon daughters in air. I would recommened to contact HIDEX for further information, especially I am sure that someone out there has already used it for smear samples measurements.

Best regards from Katowice, Poland!


---- Wes Van Pelt <WesVanPelt at verizon.net> schrieb:
> A new liquid scintillation counter is described at:
> http://www.hidex.com/ 
> I quote below from an email I received from them:
> 	We have been developing the new counter for some time and it will be
> officially available starting February 2008. The basic system is a counter
> with sample trays holding either 40 (5x8) 20 ml vials or 96 (8x12) 7ml
> vials. The counter has a pneumatic arm which is loading the samples to the
> detector chamber.  The counter has a unique three PMT detector which enables
> Triple to Double Coinciencidence Ratio counting. This enables easy
> determination of sample counting efficiency without any external or internal
> standard.
> Has anyone had any experience with this new type of lsc? Franz?
> Best regards,  
> Wes
> Wesley R. Van Pelt, PhD, CIH, CHP 
> Wesley R. Van Pelt Associates, Inc.  
> -----Original Message-----
> From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf
> Of cehn at aol.com
> Sent: Tuesday, March 25, 2008 8:58 PM
> To: radsafe at radlab.nl
> Subject: [ RadSafe ] H-3 Smears
> Can anyone recommend a compact, portable smear counter for tritium smears??
> Especially one that doesn't use P-10 gas.
> --Joel I Cehn, CHP
> joelc at alum.wpi.edu
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