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Alpha Spectra Inc

Scintillation Detectors since 1986

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Open Face Type: Cylindrical and Rectilinear

Open face detectors are the simplest design we offer. They are useful for both gamma spectroscopy and gross counting. This configuration offers a low cost approach for customers who want to supply their own PMT. Popular uses include hand held survey instruments, monitoring gamma background, screening food for contamination, educational labs, and industrial gauges that measure liquid levels or material thickness. This design provides the option that with a quick look into the optical window the user can determine if the crystal is fractured or hydrated. This is especially useful when the detector is used in field applications.

Dimensions shown in the tables below are nominal. For more information, please contact us.

Open Face – Cylindrical

 Open Face Data Sheet

Please note, you may need to rotate your mobile device to view the entire table below:

Model
Number
 
Crystal
Diameter

(in)
 
Crystal
Height 

(in)
 
Crystal Volume 
(in3)
 
Crystal
Volume 

(cc)
 
Detector
Dimension A 

(in)
 
Detector
Dimension B 

(in)
 
Weight 
(lbs)
 
2X1 0.50 0.25 0.05 0.80 0.45 0.40 0.01
2X2 0.50 0.5 0.10 1.60 0.45 0.59 0.01
2X4 0.50 1.00 0.20 3.20 0.63 1.20 0.04
2X5 0.50 1.25 0.25 4.00 0.63 1.42 0.04
2X6 0.50 1.50 0.29 4.80 0.70 1.71 0.05
3X4 0.75 1.00 0.44 7.20 0.88 1.19 0.07
3X12 0.75 3.00 1.33 21.70 1.13 3.28 0.29
3X16 0.75 4.00 1.77 29.00 1.13 4.51 0.38
4X2 1.00 0.50 0.39 6.40 1.22 0.74 0.08
4X4 1.00 1.00 0.79 12.90 1.22 1.26 0.14
4X5 1.00 1.25 0.98 16.10 1.22 1.49 0.16
4X6 1.00 1.50 1.18 19.30 1.22 1.76 0.19
4X8 1.00 2.00 1.57 25.70 1.22 2.26 0.25
4X16 1.00 4.00 3.14 51.50 1.22 4.26 0.47
5X7 1.25 1.25 1.53 25.10 1.50 2.00 0.33
5X8 1.25 2.00 2.45 40.20 1.51 2.35 0.46
6X2 1.50 0.50 0.88 14.50 1.72 0.78 0.15
6X4 1.50 1.00 1.77 29.00 1.74 1.30 0.29
6X6 1.50 1.50 2.65 43.4 1.74 1.81 0.42
6X8 1.50 2.00 3.53 57.90 1.69 2.33 0.54
6X12 1.50 3.00 5.30 86.90 1.74 3.58 0.83
10X8 2.50 2.00 9.82 160.90 2.68 2.35 1.49
12X2 3.00 0.50 3.53 57.90 3.49 0.95 0.69
12X4 3.00 1.00 7.07 115.90 3.23 1.33 1.19
12X8 3.00 2.00 14.14 231.70 3.23 2.34 2.16
12X12 3.00 3.00 21.21 347.60 3.23 3.34 3.13
20X4 5.00 1.00 19.63 321.80 5.82 1.55 3.58
20X8 5.00 2.00 39.27 643.60 5.83 2.55 6.18
20X12 5.00 3.00 58.90 965.40 5.83 3.36 8.74
20X20 5.00 5.00 98.17 1609.10 7.93 5.52 15.6

Open Face – Rectilinear

 Open Face Data Sheet

Please note, you may need to rotate your mobile device to view the entire table below:

Model Number

 

Crystal Width
(in)
Crystal Length
(in)
Crystal Height 
(in)
Crystal Volume 
(in3)
Crystal Volume 
(cc)
Detector Dimension A 
(in)
 
Detector Dimension B 
(in)
 
Detector Dimension C 
(in)
 
Weight 
(lbs)
2X2X2 0.50 0.50 0.50 0.13 2.00 0.75 0.75 0.92 0.05

Open Face Gallery

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Alpha Spectra, Inc.
715 Arrowest Court
Grand Junction, CO 81505
970-243-4477
800-231-2545

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Alpha Spectra, Inc. is the largest American-owned Scintillation Detector Manufacturer.

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