Electra DELTA 25 Manual de usuario descargar pdf (Pagina 18)

Alpha-Beta Scintillation Probes/Data

Alpha-Beta Probe Data

Order Window Efficiencies (% surface emission) Background

Cs (γ) Response

Weight

Code

Area Shape Alpha Beta s

-1

cpm s

-1

cpm (kg) (lb)

(cm²)

241

Sr/

Y(per

(per

µSv/h) 100 µR/h)

DP2/4A 50 square 35% 29% 34% <4 <240 25 1500 0.75 1.7

DP2R/4A 50 square 25% 7% 21% 24% <4 <240 25 1500 0.75 1.7

DP6AD 100 rect. 33% — 18% 38% 41% <10 <600 50 3000 0.5 1.1

DP6CD 100 rect. 30% — 14% 30% 31% <10 <600 50 3000 0.5 1.1

DP6DD 100 rect. 39% — 20% 38% 40% <10 <600 40 2400 0.5 1. 1

DP8A 600 rect. 28% — 12% 31% 36% <30 <1800 180 10,800 1.55 3.5

HP-380AB 100 rect. 36% 18% 44% <10 <600 50 3000 0.59 1.37

DP2 Family

A well-established general purpose

dual phosphor (ZnS/ BC400) probe

which responds to alpha, medium and

high energy beta and gamma.

Compact, reasonably robust and

ergonomic, users include nuclear

sites, survey, environmental and gov-

ernment radiation laboratories, emer-

gency services and the petrochemical

industry. The DP2R/4A version has a

rugged 3 mm mesh grill for longer life

of the thin aluminized window.

This probe can be matched with

Thermo's portable survey meters,

such as the Electra/Delta series,

ASP-2, E-600, or RM-25.

• Compact, rea-

sonably

robust,

ergonomic

• Rugged 3

mm mesh

grille version,

DP2R/4A

• DP2/4A, DP2R/4A use a PET connec-

tor; DP2/4B, DP2R/4B use an MHV

connector; IDP2/4B, IDP2R/4B are

the intelligent version for use only

with the Selectra

•

241

Am alpha calibration source:

RRS 21A

•

Cl beta calibration source: RRS 24A

These hand probes are dual phosphor

(ZnS/NE102) general purpose

survey and frisking probes

with excellent sensitivity

to alpha and beta with

minimum interference

from gamma back-

grounds. The probe design is con-

structed from lightweight aluminum

which promotes ruggedness and

ergonomic handling. This probe can

be matched with Thermo's portable

survey meters, such as the ASP-2,

E-600, RM-25 or Electra/Delta series.

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Electra DELTA 25 Manual de usuario Pagina 18

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