Welcome to optoaxis,Inc!!

Products list

Crystals

Product Index
Search

Guaranteed Low Price !!!

Home About Us Products Quote Request Contact Us

Scintillators BGO ,LYSO and GSO

We develop and manufacture a range of scintillator crystals that can be used in radiation detector modules for medical imaging, industrial CT, medically XCT, Positron emission tomography (PET), high energy physics, security scanning, oil well logging, and research applications. We offer the service of volume crystal growth, volume fabrication, detector array & module assemble and crystal development.

The comparison of the properties of BGO,LYSO,GSO

Properties	GSO	BGO	LYSO
Density (g/m³)	6.7	7.13	7.3
Melting Point ( ° C)	1900	1050	2047
Index of Refraction	1.87	2.15	1.82
Radiation Length (cm)	1.38	1.10	1.16
Attenuation （cm^-1）	0.67	0.96	0.87
Decay Constant (ns)	50	300	50
Light Yield (%) Nal (T1)	35	25	75
Photofraction（%）	25	40	30
Energy Resolution (511 kev,%)	12	16	20
Radioactivity	No	No	Yes

Application

Gamma-ray and X-ray detectors such as PET, well logging and high energy physics.

Features	Requirements of scintillation crystals
Stopping power	Dense and high absorption coefficient for gamma-ray.
Scintillation properties	High light output and short decay time, colorless and clear
Uniformities	Excellent energy resolution and uniform light output.
Temperature response	Small decrease in light output at 100°C
Radiation hardness	Almost no degradation in scintillation properties at 10*6 gray.

BGO Crystal

Bismuth germinate Bi₄Ge₃O₁₂commonly abbreviated as BGO, is the crystalline form of an inorganic oxide with cubic eulytine structure, colorless, transparent and insoluble in water. When exposed to radiation of high energy particles or other sources, such as gamma-rays, x-rays, it emits a green fluorescent light with a peak wavelength of 480nm, with its high stopping power, high scintillation efficiency, good energy resolution and non-hygroscopes, BGO is a good scintillation material and has found a wide range of applications in high energy physics, nuclear physics, space physics, nuclear medicine, geological prospecting and other industries.

Specification

Diameter	2 ” or 3 ”
Length	1 ” or 6 ”
Orientation	<110> , <100>, <001>

Physical Properties Of BGO

Density (g/m³)	7.13
Melting point ( ° C)	1050
Parameter of crystal cell (A)	10,518
Refractive index	2.15
Radiation length (cm)	1.1
Peak of fluorescence spectra (nm)	480
Decay time (ns)	300
Relative light output (%)	10-14Nal (T1)
Energy resolution (511 kev,%)	20

GSO Crystal

GSO single crystal is used as a scintillator in medical imaging equipment like PET (Positron Emission Tomography) scanners and other radiation detection equipment. Its superior energy resolution, fast decay time, large light output support quick and high precision radiation detection.

Physical Properties Of GSO

Density (g/cm³)	6.7
Melting Point (℃)	1900
Radiation Length (cm)	1.38
Decay Constant (ns)	50-60
Light Yield(relative BGO=100%)	110
Inder of Refraction	1.87
Peak Excitation (nm)	350
Radiation Hardness (rad)	>106
Hardness (Mohs)	5.7
Hygroscopic	No

LYSO Crystal

LYSO crystal is an ideal generation sintillator crystal. LYSO stand for Cerium doped Lutetium Yttrium Orthosilicate. LYSO crystal has the advantages of high light output, high density, fast decay time, good energy resolution and low cost. These properties mean that LYSO is an ideal candidate for a range of ray detection applications in nuclear physics and nuclear medicine, which require higher though improved timing resolution and superior energy revolution.
Sinoceramics, Inc. can produce LYSO in high volume and can supply finished pixel or assembled customer specified array or module configurations.

Physical Properties Of LYSO

Density (g/cm³)	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 (degree C)	2050
Hardness (Mohs)	5.8
Cleavage	None
Hygroscopicity	No