Sun Nuclear Corporation 1136 Manuel D’Utilisation

5

Specifications

Diode detector inputs Quantity

Four channels; connection to 4 diodes

Connector type

LEMO (BNC-LEMO adaptor available)

Detector temperature 

Compensation

Auto, within 0.1 °C (negative detector current only)

Calibration

User calibrated against ion chamber standard

Repeatability

± 0.2% or ± 0.1 cGy

Detector requirements n or p type diodes responding between 5 to 100 nC/Gy
Polarity

Bipolar, i.e., measures positive or negative detector current

Current limit

± 40 nA average radiation current or 1.0 nC per radiation 

pulse

Leakage

Auto compensation

Warm-up time 

< 30 seconds

Environmental 

Temperature

15 °C to 32 °C 

Relative humidity

10% to 90% rh, non-condensing

Component defini-

tions, size and weight

Detector Pod

Measure dose received by diode detectors, 4 diodes per 

Pod; 7x12x3 cm, 340 gm

Base station

Data relay between wireless Detector Pod and Control Mod-

ule; 7x12x3 cm, 340 gm

Display

Control Module with keypad for start and display of dosim-

etry measurements; 14x16x3.5 cm, 780 gm

Printer

Seiko thermal printer, model DPU-414, serial port to display, 

9x320 dots/line, 40 column=9 cm; 16x17x6.6 cm, 580 gm 

Cable

Control Module to base station (located in treatment room) 

via 6 pin modular connector/cable, 25 m.

Frequency 

916.5 MHz for USA, 868.35 MHz for European Union

Power

Detector Pod

Rechargeable NiMH battery, 12 hour on full charge

Control Module

Medically-approved power supply operating on 100-240 

VAC, 47-63 Hz mains, providing 18 VDC output

Electrical isolation 

• Wireless—through radio frequency communication, Am-

plifier Sequenced Hybrid (ASH), On-Off Keyed (OOK), 

Manchester encoded

• Hardwired—through medically approved power supply