NGT-TX Gamma Tool

NGT-TX

1.36″ OD Gamma Tools

The NGT-TX gamma tool is a shorter version of the NGT-T tool. 2.0” have been removed from the electronics chassis for an overall make-up length of 11.6”. All other specifications are the same as the NGT-T.

NGT-TX

1.36″ OD Gamma Tools

The NGT-TX gamma tool is a shorter version of the NGT-T tool. 2.0” have been removed from the electronics chassis for an overall make-up length of 11.6”. All other specifications are the same as the NGT-T.

NGT-TX Specifications

Detector	Nal(TI) Scintillator Crystal	1.0” Diameter X 4.0” Length
Detector	Photomultiplier	R3991A (Hamamatsu)
Mechanical	Diameter (OD)	1.36”
	Length (make-up)	11.6”
	Weight	1.5 lb.
	End Connectors	Micro-D Subminiature, 15-Pin
	Material	Aluminum Alloy
Performance	Sensitivity	1.14 CPS/API*
	Accuracy	+/- 5% to 300°F +/- 10% to 350°F
	Thin-Bed Resolution (8” hole Diameter)	6.8”
Environmental	Operating Temperature	0°F to 350°F
	Survival Temperature (reduced accuracy)	-40°F to 400°F
	Heat/Cool Rate, Max.	5°F per minute
	Vibration (3 axis) 50-1000Hz, Random	20G RMS
	Shock (3 axis)	1000G, 0.5ms, half-sine
Power Requirements	DC Input Voltage	17-48 VDC, 50VDC Max.
Power Requirements	Tool Current	8-11 mA
Output Signal	Negative Pulse	+5V to GND, 5 uSec width

* Counts are collected with gamma tool mounted within standard BeCu pressure barrel, (OD 1.875″, ID 1.500″). API Calibration performed with AEA Technology, QSA Inc., KUTh Field Verifier #188074, S/N 255 Radionuclides: K-40(11.7%), U-238(90 ppm), Th-232(40 ppm).

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