This listing is for one LYSO Crystal
ready to use as a gamma calibration check source for Gamma Spectrometry.
LYSO contains Lutetium that is slightly radioactive and has very specific gamma energy emitted at 201.8 keV and 306.8 keV. Since the energies emitted are in a common area of interest, Lu176 makes an excellent calibration source for gamma spectrometry. With a half-life of more than 37 billion years, it’s a check source that wont ware out on you, or that you will constantly have to recalibrate for. If a you are interested in more than one LYSO crystal, please see my other listings for a better price on multiples. These are not recommended for use as a Geiger Mueller (GM) check source, as the emitted energy is too week to provide many counts, unless you have perhaps 10 or more crystals (see my other listing if purchasing a quantity).
L
YSO is also a Premium Scintillator Material, with very good
energy resolution and guaranteed to work for gamma radiation detection when coupled
to a PMT and built into a probe. LYSO is denser than BGO or GSO with a specific
density of 7.3 g/cc that provides excellent stopping power for high energy
photons. Much greater density than that of NaI(Tl) and is non-hygroscopic and
safe to handle. LYSO is very durable and does not break easily.  When measuring low energy samples, the Lu176 background can be subtracted, but is not always necessary since the emitted energy is week and very specific.
This listing is only for 1 LYSO crystal, no other items shown are included in the sale. The laptop computer, detector and other equipment is NOT INCLUDED!
Dimensions each crystal:
Length = 22mm
Sides (both) = 4mm
Weight = 2.57gm
From the manufacture:
LYSO crystal is an ideal generation scintillator crystal.
LYSO (Cerium-doped Lutetium Yttrium Orthosilicate). LYSO crystal has the
advantages of high light output and density, quick decay time, excellent energy
resolution and low cost. These properties make LYSO an ideal candidate for a
range of ray detection applications in nuclear physics and nuclear medicine,
which require higher, improved timing resolution and superior energy
resolution.
Physical Properties Of
LYSO
Density (g/cm
3
)
7.4
Effective Atomic Number
66
Radiation Length (cm)
1.10
Decay Constant (ns)
40-44
Peak Emission (nm)
428
Light Yield (Relative
BGO=100%)
190
Index of Refraction
1.82
Peak excitation (nm)
375
Radiation Hardness (rad)
>106
Melting Point (°C)
2050
Hardness (Mohs)
5.8
Cleavage
None
Hygroscopicity
No
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!
Interested in a discount for more than one crystal, or a listing that does not mention check source? Please see my other listings. I have shipped hundreds of these crystals all over the world with no problems.
Attention school teachers and students. These are excellent
for science and physics projects, experiments and term or research papers.
Scintillator detectors are fun and easy to build for all age groups from high
school through college and university. Great experience and fun for the
electronic hobbyist as well.
I SHIP VERY FAST, USUALLY BY THE NEXT DAY (Priority Mail is
optional).
This listing is only for 1 LYSO crystal, no other items shown
are included in the sale. The laptop computer, detector and other equipment is NOT INCLUDED!