Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions

In the field of laser-based diagnostics and treatment techniques for artwork conservation it is known that lead white, wide use as art pigment in the past, shows low photothermal stability upon laser irradiation. Thermal alterations of lead white paint films are often observed during Raman spectrosc...
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Autor*in:	Ciofini, Daniele [verfasserIn] Agresti, Juri [verfasserIn] Mencaglia, Andrea Azelio [verfasserIn] Siano, Salvatore [verfasserIn] Osticioli, Iacopo [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	Optical properties Scattering Raman Thermoelectric sensor Laser heating Lead carbonate

Übergeordnetes Werk:	Enthalten in: Sensors and actuators / B - Amsterdam [u.a.] : Elsevier Science, 1990, 325
Übergeordnetes Werk:	volume:325

DOI / URN:	10.1016/j.snb.2020.128958

Katalog-ID:	ELV004820878

Internformat


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520			\|a In the field of laser-based diagnostics and treatment techniques for artwork conservation it is known that lead white, wide use as art pigment in the past, shows low photothermal stability upon laser irradiation. Thermal alterations of lead white paint films are often observed during Raman spectroscopy, although the origin of heating has not yet been exhaustively explained. Here, we approach the interpretation of this phenomenon through the preparation of high- (analytes) and low-grade (art pigment) lead white films, thorough compositional and structural characterizations, measurement of the optical parameters, and online temperature measurements during Raman spectroscopy excited at 1064 nm. Spectra and associated temperature profiles were achieved using a system equipped with an online thermal sensor. The data collected show the crucial importance of the degree of purity in heat generation upon laser exposure. Due to their higher content of Fe2O3 inclusions, low-grade films (150−250 ppm against 50 ppm of high-grade) showed absorption coefficients five times higher than high-grades films, and temperature rises up to 80−100 °C upon 207 W/cm2 irradiation and 25 s exposure. Optical absorption and heating of low-grade films determined weaker signals and higher backgrounds in the Raman spectra, whose origin was ascribed to luminescence of Fe2O3 inclusions. Moreover, the spectral and thermal influence of the substrate was also investigated thus achieving a complete picture of the photothermal behavior of lead-white art pigments during Raman spectroscopy.
650		4	\|a Optical properties
650		4	\|a Scattering
650		4	\|a Raman
650		4	\|a Thermoelectric sensor
650		4	\|a Laser heating
650		4	\|a Lead carbonate
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700	1		\|a Osticioli, Iacopo \|e verfasserin \|4 aut
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publishDate	2020
allfields	10.1016/j.snb.2020.128958 doi (DE-627)ELV004820878 (ELSEVIER)S0925-4005(20)31305-8 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Ciofini, Daniele verfasserin (orcid)0000-0002-7217-8663 aut Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In the field of laser-based diagnostics and treatment techniques for artwork conservation it is known that lead white, wide use as art pigment in the past, shows low photothermal stability upon laser irradiation. Thermal alterations of lead white paint films are often observed during Raman spectroscopy, although the origin of heating has not yet been exhaustively explained. Here, we approach the interpretation of this phenomenon through the preparation of high- (analytes) and low-grade (art pigment) lead white films, thorough compositional and structural characterizations, measurement of the optical parameters, and online temperature measurements during Raman spectroscopy excited at 1064 nm. Spectra and associated temperature profiles were achieved using a system equipped with an online thermal sensor. The data collected show the crucial importance of the degree of purity in heat generation upon laser exposure. Due to their higher content of Fe2O3 inclusions, low-grade films (150−250 ppm against 50 ppm of high-grade) showed absorption coefficients five times higher than high-grades films, and temperature rises up to 80−100 °C upon 207 W/cm2 irradiation and 25 s exposure. Optical absorption and heating of low-grade films determined weaker signals and higher backgrounds in the Raman spectra, whose origin was ascribed to luminescence of Fe2O3 inclusions. Moreover, the spectral and thermal influence of the substrate was also investigated thus achieving a complete picture of the photothermal behavior of lead-white art pigments during Raman spectroscopy. Optical properties Scattering Raman Thermoelectric sensor Laser heating Lead carbonate Agresti, Juri verfasserin aut Mencaglia, Andrea Azelio verfasserin aut Siano, Salvatore verfasserin (orcid)0000-0001-6126-2539 aut Osticioli, Iacopo verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 325 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:325 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 325
spelling	10.1016/j.snb.2020.128958 doi (DE-627)ELV004820878 (ELSEVIER)S0925-4005(20)31305-8 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Ciofini, Daniele verfasserin (orcid)0000-0002-7217-8663 aut Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In the field of laser-based diagnostics and treatment techniques for artwork conservation it is known that lead white, wide use as art pigment in the past, shows low photothermal stability upon laser irradiation. Thermal alterations of lead white paint films are often observed during Raman spectroscopy, although the origin of heating has not yet been exhaustively explained. Here, we approach the interpretation of this phenomenon through the preparation of high- (analytes) and low-grade (art pigment) lead white films, thorough compositional and structural characterizations, measurement of the optical parameters, and online temperature measurements during Raman spectroscopy excited at 1064 nm. Spectra and associated temperature profiles were achieved using a system equipped with an online thermal sensor. The data collected show the crucial importance of the degree of purity in heat generation upon laser exposure. Due to their higher content of Fe2O3 inclusions, low-grade films (150−250 ppm against 50 ppm of high-grade) showed absorption coefficients five times higher than high-grades films, and temperature rises up to 80−100 °C upon 207 W/cm2 irradiation and 25 s exposure. Optical absorption and heating of low-grade films determined weaker signals and higher backgrounds in the Raman spectra, whose origin was ascribed to luminescence of Fe2O3 inclusions. Moreover, the spectral and thermal influence of the substrate was also investigated thus achieving a complete picture of the photothermal behavior of lead-white art pigments during Raman spectroscopy. Optical properties Scattering Raman Thermoelectric sensor Laser heating Lead carbonate Agresti, Juri verfasserin aut Mencaglia, Andrea Azelio verfasserin aut Siano, Salvatore verfasserin (orcid)0000-0001-6126-2539 aut Osticioli, Iacopo verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 325 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:325 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 325
allfields_unstemmed	10.1016/j.snb.2020.128958 doi (DE-627)ELV004820878 (ELSEVIER)S0925-4005(20)31305-8 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Ciofini, Daniele verfasserin (orcid)0000-0002-7217-8663 aut Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In the field of laser-based diagnostics and treatment techniques for artwork conservation it is known that lead white, wide use as art pigment in the past, shows low photothermal stability upon laser irradiation. Thermal alterations of lead white paint films are often observed during Raman spectroscopy, although the origin of heating has not yet been exhaustively explained. Here, we approach the interpretation of this phenomenon through the preparation of high- (analytes) and low-grade (art pigment) lead white films, thorough compositional and structural characterizations, measurement of the optical parameters, and online temperature measurements during Raman spectroscopy excited at 1064 nm. Spectra and associated temperature profiles were achieved using a system equipped with an online thermal sensor. The data collected show the crucial importance of the degree of purity in heat generation upon laser exposure. Due to their higher content of Fe2O3 inclusions, low-grade films (150−250 ppm against 50 ppm of high-grade) showed absorption coefficients five times higher than high-grades films, and temperature rises up to 80−100 °C upon 207 W/cm2 irradiation and 25 s exposure. Optical absorption and heating of low-grade films determined weaker signals and higher backgrounds in the Raman spectra, whose origin was ascribed to luminescence of Fe2O3 inclusions. Moreover, the spectral and thermal influence of the substrate was also investigated thus achieving a complete picture of the photothermal behavior of lead-white art pigments during Raman spectroscopy. Optical properties Scattering Raman Thermoelectric sensor Laser heating Lead carbonate Agresti, Juri verfasserin aut Mencaglia, Andrea Azelio verfasserin aut Siano, Salvatore verfasserin (orcid)0000-0001-6126-2539 aut Osticioli, Iacopo verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 325 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:325 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 325
allfieldsGer	10.1016/j.snb.2020.128958 doi (DE-627)ELV004820878 (ELSEVIER)S0925-4005(20)31305-8 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Ciofini, Daniele verfasserin (orcid)0000-0002-7217-8663 aut Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In the field of laser-based diagnostics and treatment techniques for artwork conservation it is known that lead white, wide use as art pigment in the past, shows low photothermal stability upon laser irradiation. Thermal alterations of lead white paint films are often observed during Raman spectroscopy, although the origin of heating has not yet been exhaustively explained. Here, we approach the interpretation of this phenomenon through the preparation of high- (analytes) and low-grade (art pigment) lead white films, thorough compositional and structural characterizations, measurement of the optical parameters, and online temperature measurements during Raman spectroscopy excited at 1064 nm. Spectra and associated temperature profiles were achieved using a system equipped with an online thermal sensor. The data collected show the crucial importance of the degree of purity in heat generation upon laser exposure. Due to their higher content of Fe2O3 inclusions, low-grade films (150−250 ppm against 50 ppm of high-grade) showed absorption coefficients five times higher than high-grades films, and temperature rises up to 80−100 °C upon 207 W/cm2 irradiation and 25 s exposure. Optical absorption and heating of low-grade films determined weaker signals and higher backgrounds in the Raman spectra, whose origin was ascribed to luminescence of Fe2O3 inclusions. Moreover, the spectral and thermal influence of the substrate was also investigated thus achieving a complete picture of the photothermal behavior of lead-white art pigments during Raman spectroscopy. Optical properties Scattering Raman Thermoelectric sensor Laser heating Lead carbonate Agresti, Juri verfasserin aut Mencaglia, Andrea Azelio verfasserin aut Siano, Salvatore verfasserin (orcid)0000-0001-6126-2539 aut Osticioli, Iacopo verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 325 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:325 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 325
allfieldsSound	10.1016/j.snb.2020.128958 doi (DE-627)ELV004820878 (ELSEVIER)S0925-4005(20)31305-8 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Ciofini, Daniele verfasserin (orcid)0000-0002-7217-8663 aut Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In the field of laser-based diagnostics and treatment techniques for artwork conservation it is known that lead white, wide use as art pigment in the past, shows low photothermal stability upon laser irradiation. Thermal alterations of lead white paint films are often observed during Raman spectroscopy, although the origin of heating has not yet been exhaustively explained. Here, we approach the interpretation of this phenomenon through the preparation of high- (analytes) and low-grade (art pigment) lead white films, thorough compositional and structural characterizations, measurement of the optical parameters, and online temperature measurements during Raman spectroscopy excited at 1064 nm. Spectra and associated temperature profiles were achieved using a system equipped with an online thermal sensor. The data collected show the crucial importance of the degree of purity in heat generation upon laser exposure. Due to their higher content of Fe2O3 inclusions, low-grade films (150−250 ppm against 50 ppm of high-grade) showed absorption coefficients five times higher than high-grades films, and temperature rises up to 80−100 °C upon 207 W/cm2 irradiation and 25 s exposure. Optical absorption and heating of low-grade films determined weaker signals and higher backgrounds in the Raman spectra, whose origin was ascribed to luminescence of Fe2O3 inclusions. Moreover, the spectral and thermal influence of the substrate was also investigated thus achieving a complete picture of the photothermal behavior of lead-white art pigments during Raman spectroscopy. Optical properties Scattering Raman Thermoelectric sensor Laser heating Lead carbonate Agresti, Juri verfasserin aut Mencaglia, Andrea Azelio verfasserin aut Siano, Salvatore verfasserin (orcid)0000-0001-6126-2539 aut Osticioli, Iacopo verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 325 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:325 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 325
language	English
source	Enthalten in Sensors and actuators <Lausanne> / B 325 volume:325
sourceStr	Enthalten in Sensors and actuators <Lausanne> / B 325 volume:325
format_phy_str_mv	Article
bklname	Sensorik Chemisches Labor chemische Methoden
institution	findex.gbv.de
topic_facet	Optical properties Scattering Raman Thermoelectric sensor Laser heating Lead carbonate
dewey-raw	530
isfreeaccess_bool	false
container_title	Sensors and actuators <Lausanne> / B
authorswithroles_txt_mv	Ciofini, Daniele @@aut@@ Agresti, Juri @@aut@@ Mencaglia, Andrea Azelio @@aut@@ Siano, Salvatore @@aut@@ Osticioli, Iacopo @@aut@@
publishDateDaySort_date	2020-01-01T00:00:00Z
hierarchy_top_id	306710358
dewey-sort	3530
id	ELV004820878
language_de	englisch
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author	Ciofini, Daniele
spellingShingle	Ciofini, Daniele ddc 530 bkl 50.22 bkl 35.07 misc Optical properties misc Scattering misc Raman misc Thermoelectric sensor misc Laser heating misc Lead carbonate Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions
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topic_title	530 620 DE-600 50.22 bkl 35.07 bkl Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions Optical properties Scattering Raman Thermoelectric sensor Laser heating Lead carbonate
topic	ddc 530 bkl 50.22 bkl 35.07 misc Optical properties misc Scattering misc Raman misc Thermoelectric sensor misc Laser heating misc Lead carbonate
topic_unstemmed	ddc 530 bkl 50.22 bkl 35.07 misc Optical properties misc Scattering misc Raman misc Thermoelectric sensor misc Laser heating misc Lead carbonate
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title	Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions
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title_full	Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions
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author_browse	Ciofini, Daniele Agresti, Juri Mencaglia, Andrea Azelio Siano, Salvatore Osticioli, Iacopo
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title_sort	temperature sensing during raman spectroscopy of lead white films in different purity grades and boundary conditions
title_auth	Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions
abstract	In the field of laser-based diagnostics and treatment techniques for artwork conservation it is known that lead white, wide use as art pigment in the past, shows low photothermal stability upon laser irradiation. Thermal alterations of lead white paint films are often observed during Raman spectroscopy, although the origin of heating has not yet been exhaustively explained. Here, we approach the interpretation of this phenomenon through the preparation of high- (analytes) and low-grade (art pigment) lead white films, thorough compositional and structural characterizations, measurement of the optical parameters, and online temperature measurements during Raman spectroscopy excited at 1064 nm. Spectra and associated temperature profiles were achieved using a system equipped with an online thermal sensor. The data collected show the crucial importance of the degree of purity in heat generation upon laser exposure. Due to their higher content of Fe2O3 inclusions, low-grade films (150−250 ppm against 50 ppm of high-grade) showed absorption coefficients five times higher than high-grades films, and temperature rises up to 80−100 °C upon 207 W/cm2 irradiation and 25 s exposure. Optical absorption and heating of low-grade films determined weaker signals and higher backgrounds in the Raman spectra, whose origin was ascribed to luminescence of Fe2O3 inclusions. Moreover, the spectral and thermal influence of the substrate was also investigated thus achieving a complete picture of the photothermal behavior of lead-white art pigments during Raman spectroscopy.
abstractGer	In the field of laser-based diagnostics and treatment techniques for artwork conservation it is known that lead white, wide use as art pigment in the past, shows low photothermal stability upon laser irradiation. Thermal alterations of lead white paint films are often observed during Raman spectroscopy, although the origin of heating has not yet been exhaustively explained. Here, we approach the interpretation of this phenomenon through the preparation of high- (analytes) and low-grade (art pigment) lead white films, thorough compositional and structural characterizations, measurement of the optical parameters, and online temperature measurements during Raman spectroscopy excited at 1064 nm. Spectra and associated temperature profiles were achieved using a system equipped with an online thermal sensor. The data collected show the crucial importance of the degree of purity in heat generation upon laser exposure. Due to their higher content of Fe2O3 inclusions, low-grade films (150−250 ppm against 50 ppm of high-grade) showed absorption coefficients five times higher than high-grades films, and temperature rises up to 80−100 °C upon 207 W/cm2 irradiation and 25 s exposure. Optical absorption and heating of low-grade films determined weaker signals and higher backgrounds in the Raman spectra, whose origin was ascribed to luminescence of Fe2O3 inclusions. Moreover, the spectral and thermal influence of the substrate was also investigated thus achieving a complete picture of the photothermal behavior of lead-white art pigments during Raman spectroscopy.
abstract_unstemmed	In the field of laser-based diagnostics and treatment techniques for artwork conservation it is known that lead white, wide use as art pigment in the past, shows low photothermal stability upon laser irradiation. Thermal alterations of lead white paint films are often observed during Raman spectroscopy, although the origin of heating has not yet been exhaustively explained. Here, we approach the interpretation of this phenomenon through the preparation of high- (analytes) and low-grade (art pigment) lead white films, thorough compositional and structural characterizations, measurement of the optical parameters, and online temperature measurements during Raman spectroscopy excited at 1064 nm. Spectra and associated temperature profiles were achieved using a system equipped with an online thermal sensor. The data collected show the crucial importance of the degree of purity in heat generation upon laser exposure. Due to their higher content of Fe2O3 inclusions, low-grade films (150−250 ppm against 50 ppm of high-grade) showed absorption coefficients five times higher than high-grades films, and temperature rises up to 80−100 °C upon 207 W/cm2 irradiation and 25 s exposure. Optical absorption and heating of low-grade films determined weaker signals and higher backgrounds in the Raman spectra, whose origin was ascribed to luminescence of Fe2O3 inclusions. Moreover, the spectral and thermal influence of the substrate was also investigated thus achieving a complete picture of the photothermal behavior of lead-white art pigments during Raman spectroscopy.
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title_short	Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions
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Temperature sensing during Raman spectroscopy of lead white films in different purity grades and boundary conditions

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