与X光管紧密联系的是高压电源，在很多情况下，X光管和高压电源的故障是紧密相连的，甚至有时候很难清楚的分辨。而且，高压电源的性能指标在很大程度上决定着X光管系统的性能指标。我们可以将X光管和高压电源放在一起进行讨论，从技术上来说，我们对X射线源系统的认识才能更全面。

看了以后~受益匪浅啊！

谢谢鼓励。我们继续讨论。

X光管的高压电源从原理上来说比较简单，基本上都是采用变频、升压、倍压整流的方式，但XRF仪器对X光管高压电源的稳定性的要求很高，关键因素在于元器件的品质和高压倍压整流部分的封装工艺。因此，据本人所知，目前国内还没有能够在保证品质的情况下，规模化生产XRF高压电源的生产商。

我们的稳压电源用的是常州生产的，感觉还可以，水冷是莱伯特克的，都维修好几次了，呵呵

楼主说的很好，我是做X荧光光谱仪销售的，做过两个厂家的仪器。
一.X射线管寿命跟厂家设计有关，同时跟仪器整体的布局和设计也有关系。
二.用户的保养有关系。记得每次春节回来的一个月是最忙的，因为很多厂在假期都没有注意，一来直接开机，很快X射线管坏掉了。

丹东那家不行。他们同时做瓦里安光管代理，同样的型号，比美国贵80％，即使含税也不用那么夸张啊。

上传一份美国Spellman公司高压电源的资料，里面详细列举了作为XRF高压电源，应该提供的，或者说，应用于XRF仪器时，高压电源的一些技术要求。

美国Spellman公司高压电源资料

我们可以结合这份资料，对高压电源的技术要求做一些详细的讨论。

SPELLMAN HIGH VOLTAGE ELECTRONICS CORPORATION

• 50KV AT 2 MA. 50 WATTS MAX.
• ADJUSTABLE INTEGRATED FILAMENT SUPPLY
• OVERVOLTAGE & SHORT CIRCUIT PROTECTION
• VOLTAGE & CURRENT PROGRAMMING
• LOCAL AND REMOTE EMISSION CONTROL
• SAFETY INTERLOCK
• OEM CUSTOMIZATION AVAILABLE
• CE MARKED
• UL RECOGNIZED

The MNX Series is the result of Spellman’s exceptional
high voltage packaging and surface mount fabrication
techniques, coupled with its proprietary encapsulation
technology producing this ultra compact-sized OEM 50
Watt X-ray generator module.
The MNX Series is designed to power grounded cathode
X-ray tubes from a variety of well known manufacturers. It
features a 0 to 50kV high voltage output, and up to 2mA
of emission current limited to 50 Watts, operating from a
+24Vdc input. The MNX utilizes a closed loop filamentry
beam control circuit to provide a 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 both local and remote analog control to set beam
voltage, emission current and filament current limit. An
optional USB, RS232 or ethernet interface is available.
TYPICAL APPLICATIONS
Powering grounded cathode X-ray tubes from
Kevex, Oxford, RTW, Superior, Varian and Trufocus.
OPTIONS
XCC    XRM Compatible HV Cable
SIC    Standard Interface Controller
(Ethenet, USB & RS232)
5VPM    0 to 5 Volt Programming and Monitor Scaling

SPECIFICATIONS
Input:
+24Vdc±10%, 4.0A maximum.
Output:
0 to 50 kV at 0 to 2 mA, limited to a maximum of 50 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.
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:
Standard Unit: 5.00”H x 2.87”W x 8”D
(127.00mm x 72.90mm x 203.25mm).
XCC Option: 5.00”H x 2.87”W x 9”D
(127.00mm x 72.90mm x 228.65mm).
SIC Option: 5.75”H x 2.87”W x 8”D
(146.05mm x 72.90mm x 203.25mm).
Weight:
6.5 lbs. (2.9kg)

怎么会没有人参与讨论？郁闷！