Standard B-style assemblies
SCIONIX scintillation detectors are characterized by a type number in which most of the properties of the instrument can be found. However, there remain features that are not "captured" in the type number (e.g. special geometries or electronic features) since there is a large number of ways a scintillation detector can be constructed. In this case the suffix -X is added to the type number which refers to "special". Note that for some of the nine features below, more than one option may apply.
The following example, type number V 50 BD 5 / 2 ME1 - C - X indicates a 50 mm square CsI(Tl) crystal, 5 mm high, integrally coupled to a 51 mm diameter (2") photomultiplier tube, provided with a beryllium entrance window, solid Mu-metal detector housing and built-in voltage divider. It is a customer special. Standard "off the shelf" scintillation detectors are provided with silver anodized aluminum housings, bialkali photocathode PMTs and positive (+) high voltage operation.
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V
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50
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B
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D
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5
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/
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2
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ME1
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-
|
C
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-
|
X
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In case of phoswiches, the height of the primary crystal precedes the letters PH followed by the height of the secondary (guard) crystal.
In case of more than one PMT, the number is indicated in brackets after the diameter; e.g. / 3(3) indicates three 76 mm PMTs. In case of photodiode readout, the size of the photodiode is indicated in mm.
B-style assemblies with built-in VD / preamp
Standard C-style assemblies