DESCRIPTION:
Inorganic scintillators are composed by certain materials, which have the properties to emit light when ionizing radiation interact in it. The detection of ionizing radiation through scintillation light is one of the oldest techniques documented.
Efficient detection of Gamma rays requires the material of the scintillator to be with high density and high atomic number. Inorganic scintillation crystals meet the requirements of stopping power and optical transparency, their densities ranging from roughly 3 to 9 g/cm3 makes them very suitable to absorb penetrating radiation (Gamma rays). Materials with high Z-values are used for Gamma ray spectroscopy at high energies (>1 MeV).
Since photoelectron statistics plays a key role in the accurate determination of the energy of the radiation, so the use of scintillation materials with a high light output is preferred for all spectroscopic applications. On the other side, fast light emission (through fluorescence process), improves the measurement of the ionizing radiation interaction time
APPLICATION:
Each scintillation crystal has its own specific application. For high resolution Gamma ray spectroscopy, NaI(Tl), or CsI(Na) (high light output) are normally used. CeBr3 has exceptional light emission and fast light deexcitation time. For high energy physics applications, the use of bismuth germanate Bi4Ge3O12 (BGO) crystals (high density and Z) improves the Gamma ray energy confinement. (BGO) crystals (high density and Z) improves the Gamma ray energy confinement.
NaI(Tl):
- General scintillation counting
- health physics
- environmental monitoring
- high temperature use
CsI(Tl):
- Particle and high energy physics
- general radiation detection
- photodiode readout
- phoswiches
BGO:
- Particle physics
- geophysical research
- PET
- anti-Compton spectrometers
CeBr3:
- High resolution spectroscopy
- fast timing
- particle and high energy physics
- ultra-low background
LaBr3:
- Improved energy resolution
- good linearity
- homeland security
- excellent performance in a wide temperature range
STANDARD SET:
The Inorganic scintillator assemblies are composed by the following components:
- the crystal (e.g. NaI(Tl), CsI(Na)…)
- A 14-pin 10 stages PMT
This can be matched with MCA PMT base GAMMA Stream.
The assembly can be also provided with a voltage divider, to be matched with Hexagon MCA.
In addition to standard supply, the following accessories are available upon request:
- GAMMA Stream active digital Multi-Channel Analyzer integrated in a 14-pin PMT base
- Hexagon dual independent 32k digital MCA with 2 HV and 2 preamplifier power supply
Model | Material | Dimension | Decay Constant |
Voltage Divider |
Energy Resolution FWHM at 662 keV |
---|---|---|---|---|---|
51B51/2M | NaI(Tl) | 2“ Ø x 2″ h | 0.23 ms | no | < 7,5 % |
51B51/2M-E1 | NaI(Tl) | 2” Ø x 2″ h | 0.23 ms | yes | < 7,5 % |
76B76/3M | NaI(Tl) | 3” Ø x 3″ h | 0.23 ms | no | < 7,5 % |
76B76/3M-E1 | NaI(Tl) | 3” Ø x 3″ h | 0.23 ms | yes | < 7,5 % |
51B51/2M-CS | CsI(Tl) | 2” Ø x 2″ h | 0.6/3.4 ms | no | < 8 % |
51B51/2M-E1-CS | CsI(Tl) | 2” Ø x 2″ h | 0.6/3.4 ms | yes | < 8 % |
76B76/3M-CS | CsI(Tl) | 3” Ø x 3″ h | 0.6/3.4 ms | no | < 8 % |
76B76/3M-E1-CS | CsI(Tl) | 3” Ø x 3″ h | 0.6/3.4 ms | yes | < 8 % |
51B51/2M-BGO | BGO | 2” Ø x 2″ h | 0.3 ms | no | < 13 % |
51B51/2M-E1-BGO | BGO | 2” Ø x 2″ h | 0.3 ms | yes | < 13 % |
76B76/3M-BGO | BGO | 3” Ø x 3″ h | 0.3 ms | no | < 13 % |
76B76/3M-E1-BGO | BGO | 3” Ø x 3″ h | 0.3 ms | yes | < 13 % |
38B38/2M-CEBR-LB-X | CeBr3 | 1.5” Ø x 1.5″ h | 19 ns | no | < 4,2 % |
38B38/2M-E1-CEBR-LB-X | CeBr3 | 1.5” Ø x 1.5″ h | 19 ns | yes | < 4,2 % |
25S25/1-5M-LABR | LaBr3 | 1” Ø x 1″ h | ns | no | < 3,5 % |
25S25/1-5M-E1-LABR | LaBr3 | 1” Ø x 1″ h | ns | yes | < 3,5 % |
38S38/2M-LABR | LaBr3 | 1.5” Ø x 1.5″ h | ns | no | < 3 % |
38S38/2M-E1-LABR | LaBr3 | 1.5” Ø x 1.5″ h | ns | yes | < 3 % |