Alpha/Beta Contamination Probes

SS440 B Probe

A beta scintillation probe designed to be an equivalent to the NE BP4. This probe uses a ∅ 57 x 1.5 mm scintillator, with an active area of 19.6 cm2, and provides comparable sensitivity for beta radiation to anthracene.


A choice of 3 mm, 6 mm and 9 mm grill spacing is available.

SS440 B Probe Lighter.jpg

 

Efficiencies
(SS440 9 mm grill, β background 2.9 cps. Listed as percentage of 2π emission rate)

ss440 table.jpg

 

 

 

SS600 Probes

Equivalent to the NE BP6 / AP2, there are three versions of these 100 cm2 window probes available:

  • Alpha only (Zinc sulphide layer)
  • Beta only (Plastic scintillator)
  • Alpha/ Beta (Zinc sulphide bonded to a plastic scintillator)


The use of a plastic scintillator avoids the traditional use of anthracene in this application, with a comparable response.

 SS600 Probe Lighter.jpg

Efficiencies
(SS600 Alpha/Beta, α background 1.9 cps, β background 7.5 cps. Listed as percentage of 2π emission rate)

Alpha beta 3.jpg

 

 

 

SS700 Probes

a square window of 50 cm2 and a 64° angled handle. Equivalent to the NE BP7, there are three versions available:

  • Alpha only (Zinc sulphide layer)
  • Beta only (Plastic scintillator)
  • Alpha/Beta (Zinc sulphide bonded to a plastic scintillator)

The use of a plastic scintillator avoids the traditional use of anthracene in this application, with a comparable response.

SS700 Probe Lighter.jpg

Efficiencies
(SS700 Alpha/Beta, α background 0.7 cps, β background 3.4 cps. Listed as percentage of 2π emission rate)

alphabeta 3.jpg

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