APACE Science properties of common inorganic scintillators
   alkali halides
crystals specific
gravity
max. emission
wavelength [nm]
refractive
index
decay time (µs) light yield
photons/MeV
    NaI(Tl) * 3.67 415 1.85 0.23 38,000
    CsI(Tl) * 4.51 540 1.80 0.68 (64%)
3.34 (36%)
65,000
    CsI(Na) 4.51 420 1.84 0.46, 4.18 39,000
    LiI(Eu) * 4.08 470 1.96 1.4 11,000
   other inorganic crystals
crystals specific
gravity
max. emission
wavelength [nm]
refractive
index
decay time (µs) light yield
photons/MeV
    BGO   ( Bi4G3O12 ) * 7.13 480 2.15 0.30 8,200
    CWO   ( CdWO4 ) 7.90 470 2.3 1.10 (40%)
14.5 (60%)
15,000
    ZnS:Ag   ( polycrystalline phosphor ) * 4.09 450 2.36 0.2  
    CaF2:Eu  * 3.19 435 1.47 0.9 24,000
    PWO   ( PbWO4 )  * 8.28 440 ~ 500 2.16 0.005 ~ 0.015 - - - - - -
   unactivated fast inorganic crystals
crystals specific
gravity
max. emission
wavelength [nm]
refractive
index
decay time (µs) light yield
photons/MeV
    BaF2   (fast component)
  (slow component)
4.89 220
310
1.56 0.0006
0.63
1,400
9,500
    pure CsI   (fast component)

  (slow component)
4.51 305

450
 

1.80
0.002 (35%)
0.02 (65%)
multiple
up to several µs
2,000

varies
    CeF3 6.16 310,   340 1.68 0.005,   0.027 4,400
  Cerium-activated fast inorganic crystals
crystals specific
gravity
max. emission
wavelength [nm]
refractive
index
decay time (µs) light yield
photons/MeV
    LYSO:Ce   ( Lu2Y2Ce2x(SiO4)O:Ce+ ) * 7.4 420 1.82 0.040 25,000
    YSO:Ce   ( Y2SiO5):Ce+ ) * 4.45 420 1.80 0.035 10,000
    GSO:Ce   ( Gd2SiO5:Ce+ ) * 6.71 440 1.85 0.056 (90%)
0.4 (10%)
9,000
    YAP:Ce   ( YAlO3:Ce+ ) * 5.37 370 1.95 0.027 18,000
    YAG:Ce   ( Y3Al5O12:Ce+ ) * 4.56 550 1.82 0.088 (72%)
0.302 (28%)
17,000
    LSO:Ce   ( Lu2Ce2x(SiO4)O:Ce+ ) * 7.4 420 1.82 0.040 25,000
    LuAP:Ce   ( LuAlO3:Ce+ ) * 8.4 365 1.94 0.017 17,000
    LGB:Ce   ( 6Li6Gd10B3O9:Ce+ ) *   3.50 (10B)  390   1.67 (X-lat.) 
  1.64 (Y-lat.) 
~0.2 (major)
~0.8 (minor)
9,960 n (capt)
5,310 electron
  Li-doped glass scintillators
crystals specific
gravity
max. emission
wavelength [nm]
refractive
index
decay time (µs) light yield
photons/MeV
    GS1 / GS2 / GS3 * 2.66 395 1.06 0.05 ~ 0.07 ~ 3,500
    GS10 / GS20 / GS30 * 2.50 395 1.55 0.05 ~ 0.07 ~ 3,500
    KG1 / KG2 / KG3 * 2.42 395 1.57 0.05 ~ 0.07 ~ 3,500
note: bold printed crystals are available through APACE Science
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