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GENERAL PROPERTIES |
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| Polymer Base:
Polvinyltoluene |
| Density , g/cc:
1.02 |
| Refractive Index:
(ND): 1.58 |
| Softening Point:
70 oC |
| Coeff. of Linear
Expansion: : 7.8x10-5 Below +67oC |
| Vapor Pressure: Negligible. May be used
in high vacuum. |
| Light Output vs
Temperature: At
+60oC is 95% of that |
| at +20oC.- No change from +20oC
to -60oC. |
| Radiation Length:
43cm |
| Radiation Detection:
alpha, beta, gamma, neutron |
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|
RP-400 EMISSION SPECTRUM |
SCINTILLATION PROPERTIES
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Light Output ,
% Anthracene : 38 |
| Scintillation Efficiency,
Photons/ MeV: 9,200 |
| Wavelength of Max. Emission, nm:
435 |
| Rise Time, ns:
1.0 |
| Decay Time, ns:
3.3 |
| Pulse Width, FWHM, ns:
4.2 |
| Atomic Ratio, H/C:
1.10 |
| No. of H Atoms per cm3, x 1022
: 5.17 |
| No. of C Atoms per cm3,
x 1022 : 4.69 |
| No. of Electrons per cm3, x 1022
: 3.33 |
| |
|
| Plastic Scintillators offer high performance, ease of
handling, mechanical stability at a relatively low cost. The
versatility of plastic |
| scintillators makes them the ideal choice for large area and
specially shaped detectors. |
| |
| RP-400 (having the same formulation as NE 102A) is truly the
general purpose scintillator that has been the mainstay over the |
| past fifty years for use in industrial and health physics
measurement alpha, beta, gamma and neutron radiation as well as numerous |
| medical instruments and scientific research ranging from low
background shields in nuclear physics to space-borne astrophysics |
| systems. It is available in
geometries ranging from very thin films to thick cast sheet, rods and
ingots. |
| |
| Forapplications that require the scintillation light to
traverse over 100 cm, a slight modification of the formulae provides the |
| RP-408. While the light output decreases from 65% to 64% in
RP-408, the decay time becomes shorter (from 2.4 ns to 2.1 ns) |
| with a MAJOR IMPROVEMENT (.50%)
in bulk light Attenuation Length. Refer to RP-408
for additional details. |
| |
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RESPONSE OF PVT BASE PLASTIC SCINTILLATORS |
RANGE OF CHARGED PARTICLES IN MM |
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|
TO CHARGED PARTICLE EXCITATION |
IN REXON PLASTIC SCINTILLATORS |
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 |
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| ENERGY IN MEV |
ENERGY IN MEV |
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| Effects of liquids |
| |
| The plastic scintillators are soluble in aromatic solvents,
acetone chlorinated solvents etc. They are unaffected by water , dilute |
| acids, alkalis, lower alcohols, pure methyl alcohol,
silicone grease or fluid. |
| |
| Standard Sizes and Shapes |
| |
| Sheet Sizes range up to 200" (5m) long by 36" (914mm) wide.
blocks are available up to 96" (2.5m) long while Rods up to |
| 48" (1220mm diameter are manufactured. Call for standard
sizes of annuli, well counters, thin films and spheres. |
| |
| Handlingandcleaning |
| |
| Plastic scintillators sheets are supplied with a protective
paper that should not be removed until ready for use. It is advisable to
|
| handle all plastic scintillators with cotton or terylene
gloves. If the scintillator requires cleaning we recommend a dilute solution
of |
| liquiddetergent and a Selvyt polishing cloth or BPC grade
cotton wool. Alternatively, We can supply excellent cleaning and |
| polishing solutions. Use of this can often increase the
measured light attenuation length. Ethanol or methanol may be used. |
| Machining instructions are available upon request. |
| |
| Accessories: |
| |
| RX-688
Optical Coupling Grease |
| XR-560
REFLECTIVE PAINT-Super White for ALL Scintillators and Light pipes-water
base |
| PMTS
Rexon "P" Line of generic photomultipliers for all applications at LOW
COST. |
| XR-61/10
High Reflectance Special Grade of Teflon - NOT FOR SOME TYPES OF PLASTIC |
| RX-79
Index matching epoxy for Plastic Scintillators. Available in 200 cc and
400cc kits. |
| |
ALSO SEE -
Accessories |
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This Website © Copyrighted by Rexon
Components ,Inc. 24500 High Point Road, Beachwood, OH. 44122
Phone 216-292-7373 Fax 216-292-7714
Hosted by ROCK Capital
Interactive . |
