Effects of Low-Dose-Rate Radiation on Opto-Electronic Components and the Consequences upon Fiber Optic Data Link Performance

Hardwick, W. H.; Kalma, A. H.

doi:10.1109/tns.1979.4330232

Cited by 14 publications

(4 citation statements)

References 21 publications

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“…Since the sensors are designed to be employed in an environment where a non-negligible amount of high-energy radiations may be present, it is important to verify the behaviors of both the plastic fiber and of LED and photodiode when exposed to such radiations. Different studies have been performed regarding the behavior of glass fibers in the presence of radiation [26], [27], [28], mainly from the point of view of their capability of transmitting data without errors. Few results are available regarding the plastic fibers [22].…”

Section: A Radiation Effectmentioning

confidence: 99%

Modified POF Sensor for Gaseous Hydrogen Fluoride Monitoring in the Presence of Ionizing Radiations

Corbellini

Parvis

Grassini

et al. 2012

IEEE Trans. Instrum. Meas.

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This paper describes the development of a sensor designed to detect low concentrations of hydrogen fluoride (HF ) in gas mixtures. The sensor employs a plastic optic fiber (POF) covered with a thin layer of a glass-like material. The HF attacks the glass and alters the fiber transmission capability so that the detection simply requires a LED and a photodiode. The coated POF is obtained by means of a low pressure plasma enhanced chemical vapor deposition (PECVD) that allows the glass-like film to be deposited at low temperature without damaging the fiber core. The developed sensor will be installed in the recirculation gas system of the Resistive Plate Counter (RPC) muon detector of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) accelerator of the European Center for Nuclear Research (CERN).

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Section: A Radiation Effectmentioning

confidence: 99%

Modified POF Sensor for Gaseous Hydrogen Fluoride Monitoring in the Presence of Ionizing Radiations

Corbellini

Parvis

Grassini

et al. 2012

IEEE Trans. Instrum. Meas.

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“…Since the sensors are designed to be employed in the presence of high-energy radiations, it is important to assess the behavior of the plastic fiber, the LED, and the PD when exposed to such radiations. Studies are in fact available regarding the behavior of glass fibers in the presence of radiation [19][20][21], but few results are available regarding plastic fibers [22]. In general, high energy radiations can produce fiber depolymerization that could reduce the transparency of the fiber, thus impairing the performance of the sensor.…”

Section: Radiation Effectmentioning

confidence: 99%

Gas monitoring in RPC by means of non-invasive plasma coated POF sensors

et al. 2012

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Resistive Plate Counters (RPC) are employed as muon detectors in many high-rate high-energy physics experiments, such as the Compact Muon Solenoid (CMS) experiment currently under way in the Large Hadron Collider (LHC) accelerator at the European Center for Nuclear Research (CERN). A gas mixture containing C 2 H 2 F 4 , i− C 4 H 10 and SF 6 is recirculated inside the RPCs during their use and subjected to degradation due to the production of fluoride ions which limits the sensitivity of the RPCs. This paper describes a new sensor that is able to detect low concentrations of fluoride ions in gas mixtures. The sensor is made of a plastic optic fiber (POF) which is made sensitive to F − gaseous ions by means of a thin layer of a glass-like material, deposited via plasma onto the fiber core. The F − ions attack the glass-like film and alter the transmission capability of the fiber so that the detection simply requires a LED and a photodiode. The sensor exploits a cumulative response which makes it suitable for direct estimation of the total exposure to the F − ions, thus providing a tool that can be used to tune the maintenance of the gas filters. The glass-like film is deposited by means of plasma enhanced chemical vapor deposition (PECVD) of organosilicons monomers, which allows the deposition to be performed a low temperature in order to avoid damaging the fiber core.

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“…fact, studies are available regarding the behavior of glass fibers in the presence of radiations [23,24,25], but few results are available regarding the plastic fibers [19]. In general, high energy radiations can produce a fiber depolymerization that might reduce the fiber transparency thus impairing the sensor performance.…”

Section: Pos(rpc2012)072mentioning

confidence: 99%