Re: Info needed on old "Alphatron" Gauge -

["Tom O'Dou" <todou@cabreraservices.com>]

A web search found.

 

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO.: IL- 661- D- 102- S DATE: 3/ 1/ 76 DEVICE TYPE: Alphatron Ionization Vacuum Gauge MODEL: Not Noted MANUFACTURER/ DISTRIBUTOR: Varian Associates Palo Alto, California SEALED SOURCE MODEL DESIGNATION: ISOTOPE: Not Noted LEAK TEST FREQUENCY: 06 months MAXIMUM ACTIVITY: Not Noted PAGE 1 OF 1 PRINCIPAL USE: N CUSTOM DEVICE: YES X NO I .J I - age 1 of 1

Tom O'Dou, CHP, RRPT

 

----- Original Message -----

From: Ken Smith

To: radsafe@list.vanderbilt.edu

Sent: Thursday, January 03, 2002 4:55 PM

Subject: Info needed on old "Alphatron" Gauge -

Hi Radsafers –

 

I’m looking for help on identifying an old source that we recently came across here. The source is labeled:

 

National Resource

Newton, MA

Alphatron Gauge

 

The gauge was most likely manufactured around 1968 – 1969 and contains 500 uCI (microcuries) of Ra-226.

The source is cylindrical in shape about 7 in long and 2.5 inches in diameter. It was also labeled 0.05 rad – 8 hr at 1 ft. The source was most likely made in the late sixties, possibly between 1968 and 1969

 

That is a new marking to me. I’m assuming that it means the dose to an individual at 1 ft for 8 hrs in 0.05 rad.

 

If anyone has any information about this device I would vary much appreciate hearing form you.

 

Thanks in advance –

Ken

 

 

Ken Smith, CHP

Radiation Safety Officer

Environmental Health and Safety (EH&S)    voice: (831) 459-3911

University of California                  fax: (831) 459-3209

1156 High St.                             e-mail: ksmith@cats.ucsc.edu

Santa Cruz, CA  95064                     web: www.ehs.ucsc.edu