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RadiCS

Chapter 10 Information

English

Correlation Between EUREF and RadiCS

Pattern Check

The patterns used for EUREF are the same as those used for AAPM. RadiCS determines the

properties to be veriﬁed and independently prepares appropriate patterns for each resolution.

TG18-QC This is scaled to match the resolution.

TG18-LPH

(89,50,10)

This is scaled to match the resolution.

TG18-LPV

(89,50,10)

This is scaled to match the resolution.

Luminance Check

Maximum luminance and luminance ratio speciﬁed in the standard correspond to L’max and L’

max/L’min used in RadiCS. The patterns TG18-LN12-01 and TG18-LN12-18 are recommended for

luminance measurements, but RadiCS measures the luminance by displaying a window equivalent to

10% of the display area in the center of the screen and changing its grayscale level to 0 and 255. This

provides a more accurate measurement. The standard includes an equality sign but RadiCS does not.

Grayscale Check

The GSDF determination conditions correspond to those speciﬁed in EUREF. EUREF recommends

using patterns TG18-LN12-01 to TG18-LN12-18 for measurements, but RadiCS measures the

luminance by displaying a window equivalent to 10% of the display area in the center of the screen

and changing the grayscale level corresponding to the speciﬁed pattern from 0 to 255. This provides

a more accurate measurement. EUREF includes an equality sign but RadiCS does not.

Uniformity Check

EUREF recommends using the TG18-UNL10 and TG18-UNL80 patterns, but since they have

an aspect ratio of 1 : 1 they cannot be used directly. Instead, RadiCS displays grayscale 204 and

grayscale 26 windows equivalent to 10% of the display area in the center of the screen and in the

corners, and measures the center portion of each window.

Sensors

A telescopic luminance meter is recommended. The measuring devices conﬁrming to the standard

that can be used with RadiCS are the LS-100, CD-Lux, CD mon, LX-Plus and LX-Can. EIZO

sensors may also be used to perform measurements.

Multiple Monitors

EUREF includes a determination for multiple monitors, but by default RadiCS is set not to make

such a determination. If necessary, make settings as indicated in the table above. EUREF includes an

equality sign but RadiCS does not.

Cautions

For primary use, an illuminance meter must be used to ensure that the ambient light level is less than

10 lux. RadiCS does not make determinations based on illuminance.

RadiForce series monitors are considered to sufﬁciently satisfy requirements regarding geometrical

distortion, so this item is omitted.

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