Precut 2” round ZnS(Ag) over Thin Film
Polyester for Alpha Radiation Detection.
This listing is for one precut 2 inch / 50mm diameter (round) Eljen Technology EJ-440
ZnS(Ag) Scintillation Disk. These disks are used for building an Alpha Radiation Detector or when making a Spinthariscope for viewing Alpha
particle
scintillation
with the eye.
These disks 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. They can be used as is on two inch 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 ZnS(Ag) disk is ready to be installed over the end of a 2” or larger PMT or scintillation crystal, like those sold in some of my other listings.
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 should also be used over the ZnS disk to block light from entering the detector.
Please see my other listings for other custom scintillation detector building and related items.
PROPERTIES
EJ-440
Light Output (%
Anthracene)
300
Wavelength of
Maximum Emission (nm)
450
Decay Time (ns)
200
Phosphor Density
(mg/cm
2
)
3.25 ± 0.25
EJ-440, Thickness
of Polyester Film (mm)
0.25
EJ-440, Density of
Polyester Film (mg/cm
2
)
36
I also have alpha-film (rad-film) to fit these here:
https://www.ebay.com/itm/253055216280
And I have a 3X3″ ZnS(Ag) film available here:
https://www.ebay.com/itm/254678080776
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 2” ROUND DISK of ZnS(Ag) FILM, no other items are included.