ANNEXURE - I TO THE TENDER ENQUIRY No.:DPS/AMPU/MIC/1689
Detailed Specifications:-[FOR ITEM AT Sl. NO. 1]

Scintillation Detector : 1” diameter x 2” high NaI (Tl) Crystal

Photo Multiplier tube : 1” diameter (specifications are given below)

SS housing (bare metal finish)

Mu-Metal light shield (bare metal finish)

Integrated voltage divider total resistor chain value : ~13MΩ (for positive voltage
operation)

Energy Resolution : 8% or better @ 662 keV

High voltage co-axial cable : 0.5 meter long

Signal voltage co-axial cable : 0.5 meter long

The dimensional drawing of the complete detector assembly is attached in Annexure II.
The dimension of the detector assembly should not be more than as mentioned in
annexure II.
Specifications of Photo Multiplier Tube S.
No.
Characteristics
Value
1.
Photocathde material
Bialkali
2.
Photocathode Min. Active diameter
22 mm
3.
Peak wavelength
420 nm
4.
Spectral response
300 to 650 nm
5.
Photocathode Quantum efficiency at 420nm
6.
Photocathode Luminous sensitivity
7.
Anode luminous sensitivity
8.
Dark current
9.
No. of dynode stages
10.
Gain
26%
90 uA/lm
180 A/lm or better
3 nA or less
10
2 x 106 or better
ANNEXURE - II TO THE TENDER ENQUIRY No.:DPS/AMPU/MIC/1689
Drawing of the item (FOR ITEM AT Sl. NO. 1)
ANNEXURE - III TO THE TENDER ENQUIRY No.:DPS/AMPU/MIC/1689
Detailed Specifications:-[FOR ITEM AT Sl. NO. 2]

Scintillation Detector : 1” diameter x 2” high NaI (Tl) Crystal

Photo Multiplier tube : 1” diameter integrated with crystal (specifications are given
below)

SS housing (bare metal finish)

Mu-Metal light shield (bare metal finish)

Integrated voltage divider total resistor chain value : ~50MΩ (for positive voltage
operation)

Energy Resolution : 8% or better @ 662 keV

High voltage co-axial cable : 0.5 meter long

Signal voltage co-axial cable : 0.5 meter long

The dimensional drawing of the complete detector assembly is attached in Annexure IV.
The dimension of the detector assembly should not be more than as mentioned in
annexure IV.
Specifications of Photo Multiplier Tube S.
No.
Characteristics
Value
1.
Photocathde material
Bialkali
2.
Photocathode Min. Active diameter
22 mm
3.
Peak wavelength
420 nm
4.
Spectral response
300 to 650 nm
5.
Photocathode Quantum efficiency at 420nm
6.
Photocathode Luminous sensitivity
7.
Anode luminous sensitivity
8.
Dark current
9.
No. of dynode stages
10.
Gain
26%
90 uA/lm
180 A/lm or better
3 nA or less
10
2x
106 or
better
ANNEXURE - IV TO THE TENDER ENQUIRY No.:DPS/AMPU/MIC/1689
Drawing of the item (FOR ITEM AT Sl. NO. 2)