Electra DELTA 25 Bedienungsanleitung PDF herunterladen (Seite 13)

NRD

11

Neutron Probes

FN1 Fast Neutron Probe

For fast neutron

counting, the

phosphor uses the

(nα) reaction to

provide enhanced neutron detection

and insensitivity to gamma radiation.

The housing is made from light alloy.

• Phosphor size: 1.59 x 2.54 dia. cm

(0.625” x 1” dia.)

• Neutron efficiencies: 0.7 MeV, 0.01%.

3.4 MeV, 0.1%. 19 MeV, 1.6%

FN1 and TN1 are matched with

Thermo's portable survey meters,

such as the Surveyor, E-600, ASP-2,

RM-25 or Electra/Delta series.

Popular REM detector using a moderat-

ed BF

3

tube supplying excellent neutron

sensitivity and gamma rejection. This

probe can be matched with the ASP-2

and E-600. See also SWENDI-2.

• Measures neutron dose rate from

thermal through fast

• BF

3

tube provides high gamma

rejection

• Optional mounting brackets available

• 22.9 cm (9”) diameter cadmium-

covered polyethylene moderating

sphere

• Range: 1–60 kmRem/h

• Operating Voltage: 1,600–2,000 V

• Dead time: 10 µs nominal

• Background: Gamma rejection

up to approximately 500 R/h

• Sensitivity: ~50 cpm per mrem/h

(3000 counts per mrem)

• Energy range: Thermal to

approximately 10 MeV

• Operating temp:

-30 ºC to 60 ºC

(-22 ºF to 140 ºF)

• Connector: MHV

• Size: 25.1 x 22.9 dia. cm

(9” dia. x 9.9”)

• Weight: 6.2 kg (13.75 lb)

TN1 Thermal

Neutron Probe

FN1 and TN1

weights: 9.8 oz (278 g)

Uses a proprietary phosphor, highly

efficient to slow neutrons with excel-

lent gamma rejection. MHV connector.

• Phosphor size: 0.64 x 2.54 dia. cm (0.25”

x 1” dia.)

• Neutron efficiencies: 0.01 eV, 60%.

0.1 eV, 30%. 1 eV, 10%.

• Weight: 0.278 kg (0.61 lb)

FN1 and TN1 are matched with

Thermo's portable survey meters,

such as the Surveyor, E-600, ASP-2,

RM-25 or Electra/Delta series.

FN1 and TN1

•

Phosphor size:

1 in (dia.) x 0625 in

•

Neutron efficiencies:

0.7 MeV, 0.01%

3.4 MeV, 0.1%

19MeV, 1.6%

•

Phosphor size:

1 in (dia.) x 0.25 in

•

Neutron efficiencies:

0.01 eV, 60%

0.1 eV, 30%

1 eV, 10%

This state-of-the-art wide energy neu-

tron detector covers an extremely

wide energy range. The rugged

design and simple one step calibra-

tion makes it easy to operate and

ideal for use in various applications.

This probe can be matched with the

E-600. See also NRD.

• Neutron dose equivalent rate

• Improved energy response above 2

MeV

• Utilizes

3

He Tube

• Sensitivity: 680 cpm/mRem/h

• Energy range: Thermal through 30

MeV

• High voltage: 1200 to 1500 Vdc

• Size: 33.7 H x 22.9 dia. cm (13.25” x

9”)

• Weight: 13.38 kg (29.5 lb)

• Connector: Thermo Smart Connector

for use with the E-600

(Order CA-99-XX conversion cable

for use with instruments with an

MHV connector, for example the

RMS-3)

SWENDI-2

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