50-75W INDUSTRIAL X-RAY GENERATORS

The MNX Series is the result of Spellman’s exceptional high voltage packaging and surface mount fabrication techniques coupled with proprietary encapsulation technology producing this ultra-compact X-Ray generator module. The MNX powers grounded cathode X-Ray tubes from a variety of well-known manufacturers, featuring a 0 to 50kV/65kV high voltage output @ 2mA limited to 50, 65 or 75 Watts. The MNX uses closed loop filament control circuitry providing highly regulated beam current. The ground referenced low noise dc filament supply operates between 0.3 and 3.5 amps. Offering tight regulation, high stability and low ripple, the MNX provides users local and remote analog control to set beam voltage, emission current and filament current limit.

Typical applications:

The MNX is designed to run a variety of tubes from industry leading manufacturers. Contact Spellman sales to determine if the X-Ray tube of interest can be powered by the MNX.

SPECIFICATIONS

^{(Ref. 128023-001 REV. AD)}

Input Voltage:

+24Vdc ±10%, for 50W or 75W units

+24Vdc ±1V, for 65kV @ 65W unit

Input Current:

MNX50P50: 4.0 amps, maximum

MNX50P75: 6.0 amps, maximum

MNX65P65: 5.0 amps, maximum

GB Option: 1.0 amp additional, maximum

Efficiency:

80-85%, typical

Output:

0 to 50kV at 0 to 2mA, limited to a maximum of 50 watts or 75 Watts. 0-65kV at 2mA limited to 65 Watts.

Voltage Control:

Local: Internal multi-turn potentiometer to set voltage from 0 to full output voltage.

Remote: 0 to +10Vdc proportional from 0 to full output voltage. Accuracy: ±1%. ZIN: 10Mohm.

Emission Control:<

Local: Internal potentiometer to set beam current between 0 and full output current.

Remote: 0 to +10Vdc proportional from 0 to full output current. Accuracy : ±1%. ZIN: 10Mohm. Filament limit and filament preheat control capability is also provided.

DC Filament Supply:

Current: 3.5A, adjustable limit

Voltage: 5.0 volt limit

Voltage Regulation:

Load: 0.01% of output voltage no load to full load.

Line: ±0.01% for ±10% change in input voltage.

Current Regulation:

Load: 0.01% of output current from 0 to rated voltage.

Line: ±0.01% for ±10% change in input voltage.

Ripple:

0.1% p-p of maximum rated output voltage, 50kV units (50/75W)

0.1% rms maximum rated output voltage, 65kV units (65W)

Environmental:

Operational: 0°C to +50°C

Storage: -40°C to +85°C

Humidity: 0% to 90%, non-condensing

Temperature Coefficient:

0.01% per °C, voltage and current.

Stability:

0.05% per 8 hours after 1/2 hour warm-up.

Voltage and Current Monitors:

0 to +10Vdc proportional from 0 to rated output. Accuracy ±1%.

Dimensions:

50kV Unit: 5.00”H x 2.87”W x 8”D (127.00mm x 72.90mm x 203.25mm)

65kV Unit: 5.00”H x 2.87”W x 9”D (127.00mm x 72.90mm x 228.65mm)

XCC Option: 5.00”H x 2.87”W x 9”D (50/75W units only) (127.00mm x 72.90mm x 228.65mm)

Weight:

6.5 lbs. (2.9kg)

Regulatory Approvals:

Compliant to EEC EMC Directive. Compliant to EEC Low Voltage Directive. UL/CUL recognized, File E227588; MNX65P65 is not UL/CUL recognized. RoHS Compliant

OPTIONS

XCC – XRM Compatible HV Cable (50kV only)

5VPM – 0 to 5 Volt Programming and Monitor Scaling

5302 – Mammoflex HV cable for MNX

2001 – Mammoflex HV cable for MNX w/XCC option

J2 POWER INPUT CONNECTOR

J3 FILAMENT CONNECTOR

J4 ANALOG INTERFACE CONNECTOR MALE 15 PIN MINI “D”

*Denotes 10 turn potentiometer located on front panel

J1 HIGH VOLTAGE OUTPUT CONNECTOR

Spellman drywell type detachable connector.

Standard: A one meter (39.4”) long polyethylene mating high
voltage cable is provided.

5302: A one meter (39.4”) long Mammoflex mating high voltage
cable is provided, SHV p/n 201946-007

2001: A one meter (39.4”) long Mammoflex mating high voltage cable
is provided, compatible with the XCC Option SHV p/n 201946-002

Drywell connector depth:
voltage cable is provided.

50kV: 7.25˝

65kV: 8.25˝

XCC Option: 8.25˝

TABLES & DIAGRAMS

DIMENSIONS: in.[mm]

50kV

50kV with XCC Option

65kV