AdvatechUK

Plastic Scintillators


Plastic Scintillator Characteristics


Plastic scintillators were first explored in the 1950’s and they are now widely used in a broad range of radiation detection applications.


Plastic scintillators essentially take the form of luminofores (i.e. luminescent additives) which are uniformly

embedded into transparent polymer substrates. Varying compositions allow endless variants of the scintillation characteristics (such as light output, transparency to own emission, decay time and resistance to radiation) to be formulated. Specific advantages are:


volumes (up to 30cm diameter and 50cm long)



 

 





 Return to Radiation Detectors



 





 Request Quote



 





Plastic Scintillators - Advatech

Properties

Optical

Units

Value

Wavelength (Max. Emission)

nm

430

Lower Wavelength Cut-off

nm

TBA

Decay Times

ns

2 - 3

Light Yield

photons/keV


Photoelectron Yield

% of Anthracene

56

Radiation Length

cm

2.06

Optical Transmission

µm

TBA

Transmittance

%

TBA

Refractive Index


1.06 (@ 430nm)

Reflection Loss/Surface

%

TBA

Properties

Mechanical

Units

Value

Density

g/cm³

1.06

Atomic Number (Effective)


TBA

Melting Point

ºK

1627

Thermal Expansion Coeff.

C⁻¹

18.4 x 10‾⁶

Cleavage Plane


None

Hardness

Mho

TBA

Hygroscopic


No

Solubility

g/100gH0

TBA

Plastic Scintillator Variants


Scintillator

Properties

Applications

UPS-89, UPS-923A, UPS-90, UPS-96

Very high light output, good transparency, short decay time

 General purpose, particle detection


UPS-92S

Slow decay time

Phoswiches

UPS-91F

Ultra fast decay time

 High energy physics, calorimetry

UPS-92RH

Radiation hard

High energy physics, calorimetry

UPS-96M

Pressure molding technique, very cheap

High energy physics, calorimetry

UPS-976, UPS-971, UPS-972,

UPS-973, UPS-974

Various wavelengths of maximum emission

  Operation with fiber shifters

Plastic Scintillator - Physical Properties


Scintillators

Light output

% anthracene

Wavelength max. emiss., nm

Rise time,

ns

Decay time,

ns

Light attenuation length, cm

Analoges

UPS-89

65

418

0.9

2.4

360

NE102A

UPS-923A

60

425

0.9

3.3

400

BC400, NE114

UPS-90   

50

418

1

3.5

400

NE110

UPS-92S

44

380

0.9

 380-450

350

BC412, NE115

UPS-91F

39-45

390

0.7

0.6-0.4

0

PilotV, BC422Q

UPS-92RH

60

 350

0

3.5

425

SCSN81

UPS-96M

55

418  


1

3.5

25

none

UPS-97G

60

425

0.9

3.3

60

BC444

UPS-971

55

425

0.9

0

400

none

UPS-972

44  


435

0.9

0

400

none

UPS-973

45

445

0.9

0

400

none

UPS-974

53  -


480

0.9


400

none