This listing is for one 3 inch (76mm) square sheet Eljen Technology EJ-440 ZnS(Ag) Scintillation Film. This film can easily be cut to shape with scissors and used for building an Alpha Radiation Detector or when making Spinthariscopes for viewing Alpha particle scintillation with the eye.
ZnS(Ag) Scintillation Film can be added to the end of a plastic scintillator to make an Alpha/Beta/Gamma Detector, or directly to the end of a PMT to make an Alpha Detector. Simply trace your PMT (or scintillator) to the disk with a pencil and then cut to shape using scissors. They can be attached to 3" or larger scintillator blocks and/or PMTs, or cut down for smaller scintillator blocks and/or PMTs. They can be built into a housing all by themselves to view Alpha scintillation directly by the naked eye. Much information about making these devices is available on the internet simply by searching “Spinthariscope”.
The precut High Quality ZnS(Ag) sheet is ready to be installed over the end of a 3” PMT or scintillation crystal (after cutting to shape with scissors), like the one shown in the pictures. They are not necessary for Gamma Only Detectors, but are used often for Alpha Scintillation Detectors built with “End Windows”. Two or more layers of Rad-Film (aka Alpha-Film) should also be used over the ZnS disk to block light from entering the detector when used for an Alpha Scintillator. Please see my other listings for other custom scintillation detector parts and related items.
|
PROPERTIES |
EJ-440 |
|
Light Output (%
Anthracene) |
300 |
|
Wavelength of
Maximum Emission (nm) |
450 |
|
Decay Time (ns) |
200 |
|
Phosphor Density
(mg/cm2) |
3.25 ± 0.25 |
|
EJ-440, Thickness
of Polyester Film (mm) |
0.25 |
|
EJ-440, Density of
Polyester Film (mg/cm2) |
36 |
I also have alpha-film (rad-film) to fit these here: https://www.ebay.com/itm/253055208452
Need a larger size sheet? Please ask...
Please note: When combining item for purchase, please request an invoice from seller BEFORE making payment, so that I can adjust any duplication or overage of shipping charges.
I have tons of other radiation detection related equipment listed, so please check out my other items. I am always adding new items in this category, so please don't forget to add me to your favorites list and come back often!
No other items shown other than the ZnS(Ag) disk are sold with this listing. The PMT and Scintillator block are shown for demonstration purposes only.
I SHIP VERY FAST, USUALLY BY THE NEXT DAY. I only ship to the address on your PayPal account.
This listing is for ONLY ONE 3X3" sheet of ZnS(Ag) FILM, no other items are included.