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Multiple Monochromator Measurements

Procedure

| E305SL surface mount UV LED by International Light Technologies

Using Vsource = ILED Rseries + VLED, where in this case, ILED=20mA and VLED=5.5V, the resistor was chosen to be 150 ohms and the source voltage was set to be 8.5V.

Measured Vsource = 8.59 V, measured VLED = 4.15V.

The monochromator was power cycled between each measurement.

Figure: Experimental Setup
img_3513.jpg img_3514.jpg img_3515.jpg
img_3516.jpg img_3517.jpg img_3519.jpg

Background Measurement

Figure: Spectrum of Background

Fluctuations about Position

With current methodology, measurements are quite inconsistent.

LED Measurement

The LED was placed (10.0 +/- 0.5) cm away from the face of the monochromator.

Figure: Spectrum of LED

DMR-15 Measurements

Figure: Spectrum of Background

LCAE Sample Measurements